Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core patches from Greg Kroah-Hartman: "Here is the big driver core merge for 3.9-rc1 There are two major series here, both of which touch lots of drivers all over the kernel, and will cause you some merge conflicts: - add a new function called devm_ioremap_resource() to properly be able to check return values. - remove CONFIG_EXPERIMENTAL Other than those patches, there's not much here, some minor fixes and updates" Fix up trivial conflicts * tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits) base: memory: fix soft/hard_offline_page permissions drivercore: Fix ordering between deferred_probe and exiting initcalls backlight: fix class_find_device() arguments TTY: mark tty_get_device call with the proper const values driver-core: constify data for class_find_device() firmware: Ignore abort check when no user-helper is used firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER firmware: Make user-mode helper optional firmware: Refactoring for splitting user-mode helper code Driver core: treat unregistered bus_types as having no devices watchdog: Convert to devm_ioremap_resource() thermal: Convert to devm_ioremap_resource() spi: Convert to devm_ioremap_resource() power: Convert to devm_ioremap_resource() mtd: Convert to devm_ioremap_resource() mmc: Convert to devm_ioremap_resource() mfd: Convert to devm_ioremap_resource() media: Convert to devm_ioremap_resource() iommu: Convert to devm_ioremap_resource() drm: Convert to devm_ioremap_resource() ...
author: Linus Torvalds <torvalds@linux-foundation.org> 2013-02-21 15:05:51 -0500
committer: Linus Torvalds <torvalds@linux-foundation.org> 2013-02-21 15:05:51 -0500
commit: 06991c28f37ad68e5c03777f5c3b679b56e3dac1 (patch)
tree: 4be75788e21c3c644fe6d39abf47693a171cf4f8
parent: 460dc1eecf37263c8e3b17685ef236f0d236facb (diff)
parent: 74fef7a8fd1d2bd94f925d6638bb4c3049e7c381 (diff)
378 files changed, 1686 insertions, 1880 deletions
diff --git a/Documentation/CodingStyle b/Documentation/CodingStyle
index 495e5ba1634c..e00b8f0dde52 100644
--- a/Documentation/CodingStyle
+++ b/Documentation/CodingStyle
@@ -546,15 +546,7 @@ config AUDIT
          logging of avc messages output).  Does not do system-call
          auditing without CONFIG_AUDITSYSCALL.
-Features that might still be considered unstable should be defined as
+Seriously dangerous features (such as write support for certain
-dependent on "EXPERIMENTAL":
-config SLUB
-        depends on EXPERIMENTAL && !ARCH_USES_SLAB_PAGE_STRUCT
-        bool "SLUB (Unqueued Allocator)"
-        ...
-while seriously dangerous features (such as write support for certain
 filesystems) should advertise this prominently in their prompt string:
 config ADFS_FS_RW
diff --git a/Documentation/DocBook/kernel-hacking.tmpl b/Documentation/DocBook/kernel-hacking.tmpl
index eee71426ecb8..22e0bd1adf25 100644
--- a/Documentation/DocBook/kernel-hacking.tmpl
+++ b/Documentation/DocBook/kernel-hacking.tmpl
@@ -1185,13 +1185,6 @@ static struct block_device_operations opt_fops = {
    </para>
    <para>
-     You may well want to make your CONFIG option only visible if
-     <symbol>CONFIG_EXPERIMENTAL</symbol> is enabled: this serves as a
-     warning to users.  There many other fancy things you can do: see
-     the various <filename>Kconfig</filename> files for ideas.
-    </para>
-    <para>
     In your description of the option, make sure you address both the
     expert user and the user who knows nothing about your feature.  Mention
     incompatibilities and issues here.  <emphasis> Definitely
diff --git a/Documentation/DocBook/kgdb.tmpl b/Documentation/DocBook/kgdb.tmpl
index 4ee4ba3509fc..f77358f96930 100644
--- a/Documentation/DocBook/kgdb.tmpl
+++ b/Documentation/DocBook/kgdb.tmpl
@@ -94,10 +94,8 @@
  <sect1 id="CompileKGDB">
    <title>Kernel config options for kgdb</title>
    <para>
-    To enable <symbol>CONFIG_KGDB</symbol> you should first turn on
+    To enable <symbol>CONFIG_KGDB</symbol> you should look under
-    "Prompt for development and/or incomplete code/drivers"
+    "Kernel debugging" and select "KGDB: kernel debugger".
-    (CONFIG_EXPERIMENTAL) in  "General setup", then under the
-    "Kernel debugging" select "KGDB: kernel debugger".
    </para>
    <para>
    While it is not a hard requirement that you have symbols in your
diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt
index 43cff70465ab..b4671459857f 100644
--- a/Documentation/driver-model/devres.txt
+++ b/Documentation/driver-model/devres.txt
@@ -266,7 +266,8 @@ IOMAP
  devm_ioremap()
  devm_ioremap_nocache()
  devm_iounmap()
-  devm_request_and_ioremap() : checks resource, requests region, ioremaps
+  devm_ioremap_resource() : checks resource, requests memory region, ioremaps
+  devm_request_and_ioremap() : obsoleted by devm_ioremap_resource()
  pcim_iomap()
  pcim_iounmap()
  pcim_iomap_table()    : array of mapped addresses indexed by BAR
@@ -288,3 +289,7 @@ PINCTRL
 PWM
  devm_pwm_get()
  devm_pwm_put()
+PHY
+  devm_usb_get_phy()
+  devm_usb_put_phy()
diff --git a/Documentation/dynamic-debug-howto.txt b/Documentation/dynamic-debug-howto.txt
index 6e1684981da2..72322c6d7352 100644
--- a/Documentation/dynamic-debug-howto.txt
+++ b/Documentation/dynamic-debug-howto.txt
@@ -6,8 +6,16 @@ This document describes how to use the dynamic debug (dyndbg) feature.
 Dynamic debug is designed to allow you to dynamically enable/disable
 kernel code to obtain additional kernel information.  Currently, if
-CONFIG_DYNAMIC_DEBUG is set, then all pr_debug()/dev_dbg() calls can
+CONFIG_DYNAMIC_DEBUG is set, then all pr_debug()/dev_dbg() and
-be dynamically enabled per-callsite.
+print_hex_dump_debug()/print_hex_dump_bytes() calls can be dynamically
+enabled per-callsite.
+If CONFIG_DYNAMIC_DEBUG is not set, print_hex_dump_debug() is just
+shortcut for print_hex_dump(KERN_DEBUG).
+For print_hex_dump_debug()/print_hex_dump_bytes(), format string is
+its 'prefix_str' argument, if it is constant string; or "hexdump"
+in case 'prefix_str' is build dynamically.
 Dynamic debug has even more useful features:
@@ -202,6 +210,9 @@ The flags are:
  t    Include thread ID in messages not generated from interrupt context
  _    No flags are set. (Or'd with others on input)
+For print_hex_dump_debug() and print_hex_dump_bytes(), only 'p' flag
+have meaning, other flags ignored.
 For display, the flags are preceded by '='
 (mnemonic: what the flags are currently equal to).
diff --git a/Documentation/intel_txt.txt b/Documentation/intel_txt.txt
index 849de1a78e77..91d89c540709 100644
--- a/Documentation/intel_txt.txt
+++ b/Documentation/intel_txt.txt
@@ -192,7 +192,7 @@ grub.conf needs to be modified as follows:
 The kernel option for enabling Intel TXT support is found under the
 Security top-level menu and is called "Enable Intel(R) Trusted
-Execution Technology (TXT)".  It is marked as EXPERIMENTAL and
+Execution Technology (TXT)".  It is considered EXPERIMENTAL and
 depends on the generic x86 support (to allow maximum flexibility in
 kernel build options), since the tboot code will detect whether the
 platform actually supports Intel TXT and thus whether any of the
diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt
index 9d666828915a..cf7bc6cb9719 100644
--- a/Documentation/laptops/thinkpad-acpi.txt
+++ b/Documentation/laptops/thinkpad-acpi.txt
@@ -1398,7 +1398,7 @@ Sysfs notes:
 EXPERIMENTAL: UWB
 -----------------
-This feature is marked EXPERIMENTAL because it has not been extensively
+This feature is considered EXPERIMENTAL because it has not been extensively
 tested and validated in various ThinkPad models yet.  The feature may not
 work as expected. USE WITH CAUTION! To use this feature, you need to supply
 the experimental=1 parameter when loading the module.
diff --git a/Documentation/zh_CN/CodingStyle b/Documentation/zh_CN/CodingStyle
index ecd9307a641f..654afd72eb24 100644
--- a/Documentation/zh_CN/CodingStyle
+++ b/Documentation/zh_CN/CodingStyle
@@ -462,13 +462,6 @@ config AUDIT
          logging of avc messages output).  Does not do system-call
          auditing without CONFIG_AUDITSYSCALL.
-仍然被认为不够稳定的功能应该被定义为依赖于“EXPERIMENTAL”：
-config SLUB
-        depends on EXPERIMENTAL && !ARCH_USES_SLAB_PAGE_STRUCT
-        bool "SLUB (Unqueued Allocator)"
-        ...
 而那些危险的功能（比如某些文件系统的写支持）应该在它们的提示字符串里显著的声明这
 一点：
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 9b504af2e966..775361f67bfd 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -555,8 +555,7 @@ config NR_CPUS
          with working support have a maximum of 4 CPUs.
 config ARCH_DISCONTIGMEM_ENABLE
-        bool "Discontiguous Memory Support (EXPERIMENTAL)"
+        bool "Discontiguous Memory Support"
-        depends on EXPERIMENTAL
        help
          Say Y to support efficient handling of discontiguous physical memory,
          for architectures which are either NUMA (Non-Uniform Memory Access)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2f66b2e42490..f410cb16dd22 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1530,7 +1530,6 @@ config SMP
 config SMP_ON_UP
        bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
        depends on SMP && !XIP_KERNEL
        default y
        help
@@ -1731,7 +1730,7 @@ config AEABI
 config OABI_COMPAT
        bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
-        depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
+        depends on AEABI && !THUMB2_KERNEL
        default y
        help
          This option preserves the old syscall interface along with the
@@ -1855,7 +1854,6 @@ config SECCOMP
 config CC_STACKPROTECTOR
        bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
        help
          This option turns on the -fstack-protector GCC feature. This
          feature puts, at the beginning of functions, a canary value on
@@ -1872,7 +1870,7 @@ config XEN_DOM0
 config XEN
        bool "Xen guest support on ARM (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && ARM && OF
+        depends on ARM && OF
        depends on CPU_V7 && !CPU_V6
        help
          Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
@@ -1941,7 +1939,7 @@ config ZBOOT_ROM
 choice
        prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
-        depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
+        depends on ZBOOT_ROM && ARCH_SH7372
        default ZBOOT_ROM_NONE
        help
          Include experimental SD/MMC loading code in the ROM-able zImage.
@@ -1970,7 +1968,7 @@ endchoice
 config ARM_APPENDED_DTB
        bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
-        depends on OF && !ZBOOT_ROM && EXPERIMENTAL
+        depends on OF && !ZBOOT_ROM
        help
          With this option, the boot code will look for a device tree binary
          (DTB) appended to zImage
@@ -2088,7 +2086,7 @@ config XIP_PHYS_ADDR
 config KEXEC
        bool "Kexec system call (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
+        depends on (!SMP || HOTPLUG_CPU)
        help
          kexec is a system call that implements the ability to shutdown your
          current kernel, and to start another kernel.  It is like a reboot
@@ -2110,7 +2108,6 @@ config ATAGS_PROC
 config CRASH_DUMP
        bool "Build kdump crash kernel (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
        help
          Generate crash dump after being started by kexec. This should
          be normally only set in special crash dump kernels which are
@@ -2177,7 +2174,7 @@ config CPU_FREQ_S3C
 config CPU_FREQ_S3C24XX
        bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
-        depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
+        depends on ARCH_S3C24XX && CPU_FREQ
        select CPU_FREQ_S3C
        help
          This enables the CPUfreq driver for the Samsung S3C24XX family
@@ -2189,7 +2186,7 @@ config CPU_FREQ_S3C24XX
 config CPU_FREQ_S3C24XX_PLL
        bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
-        depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
+        depends on CPU_FREQ_S3C24XX
        help
          Compile in support for changing the PLL frequency from the
          S3C24XX series CPUfreq driver. The PLL takes time to settle
@@ -2252,7 +2249,7 @@ config FPE_NWFPE_XP
 config FPE_FASTFPE
        bool "FastFPE math emulation (EXPERIMENTAL)"
-        depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
+        depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
        ---help---
          Say Y here to include the FAST floating point emulator in the kernel.
          This is an experimental much faster emulator which now also has full
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 661030d6bc6c..fc2a591e1676 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -32,7 +32,7 @@ config FRAME_POINTER
 config ARM_UNWIND
        bool "Enable stack unwinding support (EXPERIMENTAL)"
-        depends on AEABI && EXPERIMENTAL
+        depends on AEABI
        default y
        help
          This option enables stack unwinding support in the kernel
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 8033cb747c86..64bac53da0e8 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -1134,11 +1134,9 @@ static int gpmc_probe(struct platform_device *pdev)
        phys_base = res->start;
        mem_size = resource_size(res);
-        gpmc_base = devm_request_and_ioremap(&pdev->dev, res);
+        gpmc_base = devm_ioremap_resource(&pdev->dev, res);
-        if (!gpmc_base) {
+        if (IS_ERR(gpmc_base))
-                dev_err(&pdev->dev, "error: request memory / ioremap\n");
+                return PTR_ERR(gpmc_base);
-                return -EADDRNOTAVAIL;
-        }
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (res == NULL)
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index 25df14a9e268..3445c4f42347 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -291,8 +291,8 @@ config MACH_JIVE
          Say Y here if you are using the Logitech Jive.
 config MACH_JIVE_SHOW_BOOTLOADER
-        bool "Allow access to bootloader partitions in MTD (EXPERIMENTAL)"
+        bool "Allow access to bootloader partitions in MTD"
-        depends on MACH_JIVE && EXPERIMENTAL
+        depends on MACH_JIVE
 config MACH_S3C2413
        bool
diff --git a/arch/arm/mach-tegra/tegra2_emc.c b/arch/arm/mach-tegra/tegra2_emc.c
index e18aa2f83ebf..ce7ce42a1ac9 100644
--- a/arch/arm/mach-tegra/tegra2_emc.c
+++ b/arch/arm/mach-tegra/tegra2_emc.c
@@ -312,11 +312,9 @@ static int tegra_emc_probe(struct platform_device *pdev)
                return -ENOMEM;
        }
-        emc_regbase = devm_request_and_ioremap(&pdev->dev, res);
+        emc_regbase = devm_ioremap_resource(&pdev->dev, res);
-        if (!emc_regbase) {
+        if (IS_ERR(emc_regbase))
-                dev_err(&pdev->dev, "failed to remap registers\n");
+                return PTR_ERR(emc_regbase);
-                return -ENOMEM;
-        }
        pdata = pdev->dev.platform_data;
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 7b433f3bddca..a0daa2fb5de6 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -808,11 +808,9 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
                return  -ENOMEM;
        }
-        timer->io_base = devm_request_and_ioremap(dev, mem);
+        timer->io_base = devm_ioremap_resource(dev, mem);
-        if (!timer->io_base) {
+        if (IS_ERR(timer->io_base))
-                dev_err(dev, "%s: region already claimed.\n", __func__);
+                return PTR_ERR(timer->io_base);
-                return -ENOMEM;
-        }
        if (dev->of_node) {
                if (of_find_property(dev->of_node, "ti,timer-alwon", NULL))
diff --git a/arch/arm/plat-samsung/adc.c b/arch/arm/plat-samsung/adc.c
index 2d676ab50f73..ca07cb1b155a 100644
--- a/arch/arm/plat-samsung/adc.c
+++ b/arch/arm/plat-samsung/adc.c
@@ -386,11 +386,9 @@ static int s3c_adc_probe(struct platform_device *pdev)
                return -ENXIO;
        }
-        adc->regs = devm_request_and_ioremap(dev, regs);
+        adc->regs = devm_ioremap_resource(dev, regs);
-        if (!adc->regs) {
+        if (IS_ERR(adc->regs))
-                dev_err(dev, "failed to map registers\n");
+                return PTR_ERR(adc->regs);
-                return -ENXIO;
-        }
        ret = regulator_enable(adc->vdd);
        if (ret)
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 67e4aaad78f5..e98f3248c8aa 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -560,8 +560,7 @@ choice
          accurate - This option is therefore marked experimental.
 config BFIN_KERNEL_CLOCK_MEMINIT_CALC
-        bool "Calculate Timings (EXPERIMENTAL)"
+        bool "Calculate Timings"
-        depends on EXPERIMENTAL
 config BFIN_KERNEL_CLOCK_MEMINIT_SPEC
        bool "Provide accurate Timings based on target SCLK"
@@ -1118,7 +1117,7 @@ endchoice
 comment "Memory Protection Unit"
 config MPU
-        bool "Enable the memory protection unit (EXPERIMENTAL)"
+        bool "Enable the memory protection unit"
        default n
        help
          Use the processor's MPU to protect applications from accessing
@@ -1440,7 +1439,6 @@ config BFIN_CPU_FREQ
 config CPU_VOLTAGE
        bool "CPU Voltage scaling"
-        depends on EXPERIMENTAL
        depends on CPU_FREQ
        default n
        help
diff --git a/arch/cris/arch-v32/drivers/Kconfig b/arch/cris/arch-v32/drivers/Kconfig
index de43aadcdbc4..af4a486dadcd 100644
--- a/arch/cris/arch-v32/drivers/Kconfig
+++ b/arch/cris/arch-v32/drivers/Kconfig
@@ -680,7 +680,7 @@ config ETRAX_SPI_MMC_BOARD
 config SPI_ETRAX_SSER
        tristate
-        depends on SPI_MASTER && ETRAX_ARCH_V32 && EXPERIMENTAL
+        depends on SPI_MASTER && ETRAX_ARCH_V32
        select SPI_BITBANG
        help
          This enables using an synchronous serial (sser) port as a
@@ -689,7 +689,7 @@ config SPI_ETRAX_SSER
 config SPI_ETRAX_GPIO
        tristate
-        depends on SPI_MASTER && ETRAX_ARCH_V32 && EXPERIMENTAL
+        depends on SPI_MASTER && ETRAX_ARCH_V32
        select SPI_BITBANG
        help
          This enables using GPIO pins port as a SPI master controller
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 00c2e88f7755..c1b80fb6938d 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -374,8 +374,8 @@ config NR_CPUS
          performance hit.
 config HOTPLUG_CPU
-        bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
+        bool "Support for hot-pluggable CPUs"
-        depends on SMP && EXPERIMENTAL
+        depends on SMP
        select HOTPLUG
        default n
        ---help---
@@ -554,8 +554,8 @@ config IA64_HP_AML_NFW
 source "drivers/sn/Kconfig"
 config KEXEC
-        bool "kexec system call (EXPERIMENTAL)"
+        bool "kexec system call"
-        depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
+        depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
        help
          kexec is a system call that implements the ability to shutdown your
          current kernel, and to start another kernel.  It is like a reboot
diff --git a/arch/ia64/kvm/Kconfig b/arch/ia64/kvm/Kconfig
index e7947528aee6..2cd225f8c68d 100644
--- a/arch/ia64/kvm/Kconfig
+++ b/arch/ia64/kvm/Kconfig
@@ -20,7 +20,7 @@ if VIRTUALIZATION
 config KVM
        tristate "Kernel-based Virtual Machine (KVM) support"
        depends on BROKEN
-        depends on HAVE_KVM && MODULES && EXPERIMENTAL
+        depends on HAVE_KVM && MODULES
        # for device assignment:
        depends on PCI
        depends on BROKEN
diff --git a/arch/ia64/xen/Kconfig b/arch/ia64/xen/Kconfig
index 515e0826803a..5d8a06b0ddf7 100644
--- a/arch/ia64/xen/Kconfig
+++ b/arch/ia64/xen/Kconfig
@@ -5,7 +5,7 @@
 config XEN
        bool "Xen hypervisor support"
        default y
-        depends on PARAVIRT && MCKINLEY && IA64_PAGE_SIZE_16KB && EXPERIMENTAL
+        depends on PARAVIRT && MCKINLEY && IA64_PAGE_SIZE_16KB
        select XEN_XENCOMM
        select NO_IDLE_HZ
        # followings are required to save/restore.
diff --git a/arch/microblaze/platform/Kconfig.platform b/arch/microblaze/platform/Kconfig.platform
index 669c7eec293e..b1747211b8b1 100644
--- a/arch/microblaze/platform/Kconfig.platform
+++ b/arch/microblaze/platform/Kconfig.platform
@@ -20,7 +20,7 @@ endchoice
 config SELFMOD
        bool "Use self modified code for intc/timer"
-        depends on EXPERIMENTAL && NO_MMU
+        depends on NO_MMU
        default n
        help
          This choice enables self-modified code for interrupt controller
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 9becc44d9d7a..5d7170bfeb28 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -169,7 +169,7 @@ config MACH_DECSTATION
        select SYS_HAS_CPU_R3000
        select SYS_HAS_CPU_R4X00
        select SYS_SUPPORTS_32BIT_KERNEL
-        select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
+        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SYS_SUPPORTS_128HZ
        select SYS_SUPPORTS_256HZ
@@ -205,7 +205,7 @@ config MACH_JAZZ
        select ISA
        select SYS_HAS_CPU_R4X00
        select SYS_SUPPORTS_32BIT_KERNEL
-        select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
+        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_100HZ
        help
         This a family of machines based on the MIPS R4030 chipset which was
@@ -395,7 +395,6 @@ config PNX8550_STB810
 config PMC_MSP
        bool "PMC-Sierra MSP chipsets"
-        depends on EXPERIMENTAL
        select CEVT_R4K
        select CSRC_R4K
        select DMA_NONCOHERENT
@@ -494,8 +493,7 @@ config SGI_IP27
          here.
 config SGI_IP28
-        bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
+        bool "SGI IP28 (Indigo2 R10k)"
-        depends on EXPERIMENTAL
        select FW_ARC
        select FW_ARC64
        select BOOT_ELF64
@@ -553,7 +551,6 @@ config SGI_IP32
 config SIBYTE_CRHINE
        bool "Sibyte BCM91120C-CRhine"
-        depends on EXPERIMENTAL
        select BOOT_ELF32
        select DMA_COHERENT
        select SIBYTE_BCM1120
@@ -564,7 +561,6 @@ config SIBYTE_CRHINE
 config SIBYTE_CARMEL
        bool "Sibyte BCM91120x-Carmel"
-        depends on EXPERIMENTAL
        select BOOT_ELF32
        select DMA_COHERENT
        select SIBYTE_BCM1120
@@ -575,7 +571,6 @@ config SIBYTE_CARMEL
 config SIBYTE_CRHONE
        bool "Sibyte BCM91125C-CRhone"
-        depends on EXPERIMENTAL
        select BOOT_ELF32
        select DMA_COHERENT
        select SIBYTE_BCM1125
@@ -587,7 +582,6 @@ config SIBYTE_CRHONE
 config SIBYTE_RHONE
        bool "Sibyte BCM91125E-Rhone"
-        depends on EXPERIMENTAL
        select BOOT_ELF32
        select DMA_COHERENT
        select SIBYTE_BCM1125H
@@ -612,7 +606,6 @@ config SIBYTE_SWARM
 config SIBYTE_LITTLESUR
        bool "Sibyte BCM91250C2-LittleSur"
-        depends on EXPERIMENTAL
        select BOOT_ELF32
        select DMA_COHERENT
        select HAVE_PATA_PLATFORM
@@ -626,7 +619,6 @@ config SIBYTE_LITTLESUR
 config SIBYTE_SENTOSA
        bool "Sibyte BCM91250E-Sentosa"
-        depends on EXPERIMENTAL
        select BOOT_ELF32
        select DMA_COHERENT
        select NR_CPUS_DEFAULT_2
@@ -675,7 +667,7 @@ config SNI_RM
        select R5000_CPU_SCACHE
        select SYS_HAS_EARLY_PRINTK
        select SYS_SUPPORTS_32BIT_KERNEL
-        select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
+        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_HIGHMEM
        select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -779,7 +771,6 @@ config CAVIUM_OCTEON_REFERENCE_BOARD
 config NLM_XLR_BOARD
        bool "Netlogic XLR/XLS based systems"
-        depends on EXPERIMENTAL
        select BOOT_ELF32
        select NLM_COMMON
        select SYS_HAS_CPU_XLR
@@ -808,7 +799,6 @@ config NLM_XLR_BOARD
 config NLM_XLP_BOARD
        bool "Netlogic XLP based systems"
-        depends on EXPERIMENTAL
        select BOOT_ELF32
        select NLM_COMMON
        select SYS_HAS_CPU_XLP
@@ -1374,7 +1364,6 @@ config CPU_R5500
 config CPU_R6000
        bool "R6000"
-        depends on EXPERIMENTAL
        depends on SYS_HAS_CPU_R6000
        select CPU_SUPPORTS_32BIT_KERNEL
        help
@@ -1392,7 +1381,6 @@ config CPU_NEVADA
 config CPU_R8000
        bool "R8000"
-        depends on EXPERIMENTAL
        depends on SYS_HAS_CPU_R8000
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_64BIT_KERNEL
@@ -1767,7 +1755,7 @@ config PAGE_SIZE_4KB
 config PAGE_SIZE_8KB
        bool "8kB"
-        depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
+        depends on CPU_R8000 || CPU_CAVIUM_OCTEON
        help
          Using 8kB page size will result in higher performance kernel at
          the price of higher memory consumption.  This option is available
@@ -1794,7 +1782,7 @@ config PAGE_SIZE_32KB
 config PAGE_SIZE_64KB
        bool "64kB"
-        depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
+        depends on !CPU_R3000 && !CPU_TX39XX
        help
          Using 64kB page size will result in higher performance kernel at
          the price of higher memory consumption.  This option is available on
@@ -2310,8 +2298,7 @@ config HZ
 source "kernel/Kconfig.preempt"
 config KEXEC
-        bool "Kexec system call (EXPERIMENTAL)"
+        bool "Kexec system call"
-        depends on EXPERIMENTAL
        help
          kexec is a system call that implements the ability to shutdown your
          current kernel, and to start another kernel.  It is like a reboot
diff --git a/arch/mips/jazz/Kconfig b/arch/mips/jazz/Kconfig
index 1f372b0d2559..fb1e072da30b 100644
--- a/arch/mips/jazz/Kconfig
+++ b/arch/mips/jazz/Kconfig
@@ -1,6 +1,6 @@
 config ACER_PICA_61
-        bool "Support for Acer PICA 1 chipset (EXPERIMENTAL)"
+        bool "Support for Acer PICA 1 chipset"
-        depends on MACH_JAZZ && EXPERIMENTAL
+        depends on MACH_JAZZ
        select DMA_NONCOHERENT
        select SYS_SUPPORTS_LITTLE_ENDIAN
        help
@@ -13,7 +13,7 @@ config MIPS_MAGNUM_4000
        bool "Support for MIPS Magnum 4000"
        depends on MACH_JAZZ
        select DMA_NONCOHERENT
-        select SYS_SUPPORTS_BIG_ENDIAN if EXPERIMENTAL
+        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_LITTLE_ENDIAN
        help
          This is a machine with a R4000 100 MHz CPU. To compile a Linux
diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c
index e44a1866653f..08f7ebd9c774 100644
--- a/arch/mips/lantiq/xway/dma.c
+++ b/arch/mips/lantiq/xway/dma.c
@@ -21,6 +21,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/module.h>
 #include <linux/clk.h>
+#include <linux/err.h>
 #include <lantiq_soc.h>
 #include <xway_dma.h>
@@ -223,8 +224,8 @@ ltq_dma_init(struct platform_device *pdev)
                panic("Failed to get dma resource");
        /* remap dma register range */
-        ltq_dma_membase = devm_request_and_ioremap(&pdev->dev, res);
+        ltq_dma_membase = devm_ioremap_resource(&pdev->dev, res);
-        if (!ltq_dma_membase)
+        if (IS_ERR(ltq_dma_membase))
                panic("Failed to remap dma resource");
        /* power up and reset the dma engine */
diff --git a/arch/mips/lantiq/xway/gptu.c b/arch/mips/lantiq/xway/gptu.c
index e30b1ed1b936..9861c8669fab 100644
--- a/arch/mips/lantiq/xway/gptu.c
+++ b/arch/mips/lantiq/xway/gptu.c
@@ -150,11 +150,9 @@ static int gptu_probe(struct platform_device *pdev)
        }
        /* remap gptu register range */
-        gptu_membase = devm_request_and_ioremap(&pdev->dev, res);
+        gptu_membase = devm_ioremap_resource(&pdev->dev, res);
-        if (!gptu_membase) {
+        if (IS_ERR(gptu_membase))
-                dev_err(&pdev->dev, "Failed to remap resource\n");
+                return PTR_ERR(gptu_membase);
-                return -ENOMEM;
-        }
        /* enable our clock */
        clk = clk_get(&pdev->dev, NULL);
diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c
index 95681789b51e..910fb4c20b9e 100644
--- a/arch/mips/pci/pci-lantiq.c
+++ b/arch/mips/pci/pci-lantiq.c
@@ -214,13 +214,13 @@ static int ltq_pci_probe(struct platform_device *pdev)
                return -EINVAL;
        }
-        ltq_pci_membase = devm_request_and_ioremap(&pdev->dev, res_bridge);
+        ltq_pci_membase = devm_ioremap_resource(&pdev->dev, res_bridge);
-        ltq_pci_mapped_cfg = devm_request_and_ioremap(&pdev->dev, res_cfg);
+        if (IS_ERR(ltq_pci_membase))
+                return PTR_ERR(ltq_pci_membase);
-        if (!ltq_pci_membase || !ltq_pci_mapped_cfg) {
+        ltq_pci_mapped_cfg = devm_ioremap_resource(&pdev->dev, res_cfg);
-                dev_err(&pdev->dev, "failed to remap resources\n");
+        if (IS_ERR(ltq_pci_mapped_cfg))
-                return -ENOMEM;
+                return PTR_ERR(ltq_pci_mapped_cfg);
-        }
        ltq_pci_startup(pdev);
diff --git a/arch/mips/sgi-ip27/Kconfig b/arch/mips/sgi-ip27/Kconfig
index 4b2ea282b9c7..4d8705a65e4a 100644
--- a/arch/mips/sgi-ip27/Kconfig
+++ b/arch/mips/sgi-ip27/Kconfig
@@ -13,7 +13,6 @@ config SGI_SN_M_MODE
 config SGI_SN_N_MODE
        bool "IP27 N-Mode"
-        depends on EXPERIMENTAL
        help
          The nodes of Origin, Onyx, Fuel and Tezro systems can be configured
          in either N-Modes which allows for more nodes or M-Mode which allows
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index a32e34ecda9e..9f2820659da2 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -192,12 +192,12 @@ config PARISC_PAGE_SIZE_4KB
          If you don't know what to do, choose 4KB.
 config PARISC_PAGE_SIZE_16KB
-        bool "16KB (EXPERIMENTAL)"
+        bool "16KB"
-        depends on PA8X00 && EXPERIMENTAL
+        depends on PA8X00
 config PARISC_PAGE_SIZE_64KB
-        bool "64KB (EXPERIMENTAL)"
+        bool "64KB"
-        depends on PA8X00 && EXPERIMENTAL
+        depends on PA8X00
 endchoice
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 561ccca7b1a7..e7fb8edb629b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -332,7 +332,7 @@ config SWIOTLB
 config HOTPLUG_CPU
        bool "Support for enabling/disabling CPUs"
-        depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || \
+        depends on SMP && HOTPLUG && (PPC_PSERIES || \
        PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
        ---help---
          Say Y here to be able to disable and re-enable individual
@@ -354,8 +354,8 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE
        def_bool y
 config KEXEC
-        bool "kexec system call (EXPERIMENTAL)"
+        bool "kexec system call"
-        depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) && EXPERIMENTAL
+        depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
        help
          kexec is a system call that implements the ability to shutdown your
          current kernel, and to start another kernel.  It is like a reboot
@@ -850,8 +850,8 @@ config LOWMEM_CAM_NUM
        default 3
 config DYNAMIC_MEMSTART
-        bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)"
+        bool "Enable page aligned dynamic load address for kernel"
-        depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
+        depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
        select NONSTATIC_KERNEL
        help
          This option enables the kernel to be loaded at any page aligned
@@ -868,8 +868,8 @@ config DYNAMIC_MEMSTART
          This option is overridden by CONFIG_RELOCATABLE
 config RELOCATABLE
-        bool "Build a relocatable kernel (EXPERIMENTAL)"
+        bool "Build a relocatable kernel"
-        depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && 44x
+        depends on ADVANCED_OPTIONS && FLATMEM && 44x
        select NONSTATIC_KERNEL
        help
          This builds a kernel image that is capable of running at the
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index 4730c953f435..63c67ec72e43 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -41,7 +41,7 @@ config KVM_BOOK3S_PR
 config KVM_BOOK3S_32
        tristate "KVM support for PowerPC book3s_32 processors"
-        depends on EXPERIMENTAL && PPC_BOOK3S_32 && !SMP && !PTE_64BIT
+        depends on PPC_BOOK3S_32 && !SMP && !PTE_64BIT
        select KVM
        select KVM_BOOK3S_32_HANDLER
        select KVM_BOOK3S_PR
@@ -56,7 +56,7 @@ config KVM_BOOK3S_32
 config KVM_BOOK3S_64
        tristate "KVM support for PowerPC book3s_64 processors"
-        depends on EXPERIMENTAL && PPC_BOOK3S_64
+        depends on PPC_BOOK3S_64
        select KVM_BOOK3S_64_HANDLER
        select KVM
        ---help---
@@ -97,7 +97,7 @@ config KVM_BOOKE_HV
 config KVM_440
        bool "KVM support for PowerPC 440 processors"
-        depends on EXPERIMENTAL && 44x
+        depends on 44x
        select KVM
        select KVM_MMIO
        ---help---
@@ -122,7 +122,7 @@ config KVM_EXIT_TIMING
 config KVM_E500V2
        bool "KVM support for PowerPC E500v2 processors"
-        depends on EXPERIMENTAL && E500 && !PPC_E500MC
+        depends on E500 && !PPC_E500MC
        select KVM
        select KVM_MMIO
        select MMU_NOTIFIER
@@ -137,7 +137,7 @@ config KVM_E500V2
 config KVM_E500MC
        bool "KVM support for PowerPC E500MC/E5500 processors"
-        depends on EXPERIMENTAL && PPC_E500MC
+        depends on PPC_E500MC
        select KVM
        select KVM_MMIO
        select KVM_BOOKE_HV
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
index 02d02a09942d..92ab60a62711 100644
--- a/arch/powerpc/platforms/85xx/Kconfig
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -277,7 +277,6 @@ config P5040_DS
 config PPC_QEMU_E500
        bool "QEMU generic e500 platform"
-        depends on EXPERIMENTAL
        select DEFAULT_UIMAGE
        help
          This option enables support for running as a QEMU guest using
diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index 2e7ff0c5cf42..53aaefeb3386 100644
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -124,7 +124,7 @@ config CBE_CPUFREQ
 config CBE_CPUFREQ_PMI_ENABLE
        bool "CBE frequency scaling using PMI interface"
-        depends on CBE_CPUFREQ && EXPERIMENTAL
+        depends on CBE_CPUFREQ
        default n
        help
          Select this, if you want to use the PMI interface
diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig
index 46b7f0232523..e87c19473973 100644
--- a/arch/powerpc/platforms/ps3/Kconfig
+++ b/arch/powerpc/platforms/ps3/Kconfig
@@ -48,7 +48,7 @@ config PS3_HTAB_SIZE
          system will have optimal runtime performance.
 config PS3_DYNAMIC_DMA
-        depends on PPC_PS3 && EXPERIMENTAL
+        depends on PPC_PS3
        bool "PS3 Platform dynamic DMA page table management"
        default n
        help
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c15ba7d1be64..27c91c38d1a1 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -717,8 +717,8 @@ source "arch/s390/kvm/Kconfig"
 config S390_GUEST
        def_bool y
-        prompt "s390 support for virtio devices (EXPERIMENTAL)"
+        prompt "s390 support for virtio devices"
-        depends on 64BIT && EXPERIMENTAL
+        depends on 64BIT
        select VIRTUALIZATION
        select VIRTIO
        select VIRTIO_CONSOLE
diff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig
index b58dd869cb32..60f9f8ae0fc8 100644
--- a/arch/s390/kvm/Kconfig
+++ b/arch/s390/kvm/Kconfig
@@ -18,7 +18,7 @@ if VIRTUALIZATION
 config KVM
        def_tristate y
        prompt "Kernel-based Virtual Machine (KVM) support"
-        depends on HAVE_KVM && EXPERIMENTAL
+        depends on HAVE_KVM
        select PREEMPT_NOTIFIERS
        select ANON_INODES
        select HAVE_KVM_CPU_RELAX_INTERCEPT
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 9c833c585871..87f720037ff7 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -644,7 +644,7 @@ source kernel/Kconfig.hz
 config KEXEC
        bool "kexec system call (EXPERIMENTAL)"
-        depends on SUPERH32 && EXPERIMENTAL && MMU
+        depends on SUPERH32 && MMU
        help
          kexec is a system call that implements the ability to shutdown your
          current kernel, and to start another kernel.  It is like a reboot
@@ -661,7 +661,7 @@ config KEXEC
 config CRASH_DUMP
        bool "kernel crash dumps (EXPERIMENTAL)"
-        depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
+        depends on SUPERH32 && BROKEN_ON_SMP
        help
          Generate crash dump after being started by kexec.
          This should be normally only set in special crash dump kernels
@@ -675,7 +675,7 @@ config CRASH_DUMP
 config KEXEC_JUMP
        bool "kexec jump (EXPERIMENTAL)"
-        depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
+        depends on SUPERH32 && KEXEC && HIBERNATION
        help
          Jump between original kernel and kexeced kernel and invoke
          code via KEXEC
@@ -709,7 +709,7 @@ config SECCOMP
 config CC_STACKPROTECTOR
        bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
-        depends on SUPERH32 && EXPERIMENTAL
+        depends on SUPERH32
        help
          This option turns on the -fstack-protector GCC feature. This
          feature puts, at the beginning of functions, a canary value on
@@ -760,7 +760,7 @@ config NR_CPUS
 config HOTPLUG_CPU
        bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
-        depends on SMP && HOTPLUG && EXPERIMENTAL
+        depends on SMP && HOTPLUG
        help
          Say Y here to experiment with turning CPUs off and on.  CPUs
          can be controlled through /sys/devices/system/cpu.
@@ -839,7 +839,7 @@ config ENTRY_OFFSET
 config ROMIMAGE_MMCIF
        bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
-        depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
+        depends on CPU_SUBTYPE_SH7724
        help
          Say Y here to include experimental MMCIF loading code in
          romImage. With this enabled it is possible to write the romImage
@@ -925,7 +925,6 @@ source "fs/Kconfig.binfmt"
 endmenu
 menu "Power management options (EXPERIMENTAL)"
-depends on EXPERIMENTAL
 source "kernel/power/Kconfig"
diff --git a/arch/sh/Kconfig.cpu b/arch/sh/Kconfig.cpu
index 770ff2d5b94d..05b518e90cf7 100644
--- a/arch/sh/Kconfig.cpu
+++ b/arch/sh/Kconfig.cpu
@@ -33,7 +33,7 @@ config SH64_FPU_DENORM_FLUSH
 config SH_FPU_EMU
        def_bool n
        prompt "FPU emulation support"
-        depends on !SH_FPU && EXPERIMENTAL
+        depends on !SH_FPU
        help
          Selecting this option will enable support for software FPU emulation.
          Most SH-3 users will want to say Y here, whereas most SH-4 users will
@@ -68,7 +68,6 @@ config SH_STORE_QUEUES
 config SPECULATIVE_EXECUTION
        bool "Speculative subroutine return"
-        depends on EXPERIMENTAL
        depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7786
        help
          This enables support for a speculative instruction fetch for
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 0f7c852f355c..5a43a871e097 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -83,7 +83,7 @@ config 32BIT
 config PMB
        bool "Support 32-bit physical addressing through PMB"
-        depends on MMU && EXPERIMENTAL && CPU_SH4A && !CPU_SH4AL_DSP
+        depends on MMU && CPU_SH4A && !CPU_SH4AL_DSP
        select 32BIT
        select UNCACHED_MAPPING
        help
@@ -110,7 +110,7 @@ config VSYSCALL
 config NUMA
        bool "Non Uniform Memory Access (NUMA) Support"
-        depends on MMU && SYS_SUPPORTS_NUMA && EXPERIMENTAL
+        depends on MMU && SYS_SUPPORTS_NUMA
        select ARCH_WANT_NUMA_VARIABLE_LOCALITY
        default n
        help
diff --git a/arch/tile/kvm/Kconfig b/arch/tile/kvm/Kconfig
index 669fcdba31ea..2298cb1daff7 100644
--- a/arch/tile/kvm/Kconfig
+++ b/arch/tile/kvm/Kconfig
@@ -18,7 +18,7 @@ if VIRTUALIZATION
 config KVM
        tristate "Kernel-based Virtual Machine (KVM) support"
-        depends on HAVE_KVM && MODULES && EXPERIMENTAL
+        depends on HAVE_KVM && MODULES
        select PREEMPT_NOTIFIERS
        select ANON_INODES
        ---help---
diff --git a/arch/um/Kconfig.net b/arch/um/Kconfig.net
index 3160b1a5adb7..820a56f00332 100644
--- a/arch/um/Kconfig.net
+++ b/arch/um/Kconfig.net
@@ -157,7 +157,7 @@ config UML_NET_MCAST
 config UML_NET_PCAP
        bool "pcap transport"
-        depends on UML_NET && EXPERIMENTAL
+        depends on UML_NET
        help
        The pcap transport makes a pcap packet stream on the host look
        like an ethernet device inside UML.  This is useful for making
diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um
index bf87f25eb2de..a7520c90f62d 100644
--- a/arch/um/Kconfig.um
+++ b/arch/um/Kconfig.um
@@ -45,8 +45,8 @@ config HOSTFS
          say Y or M here; otherwise say N.
 config HPPFS
-        tristate "HoneyPot ProcFS (EXPERIMENTAL)"
+        tristate "HoneyPot ProcFS"
-        depends on EXPERIMENTAL && PROC_FS
+        depends on PROC_FS
        help
          hppfs (HoneyPot ProcFS) is a filesystem which allows UML /proc
          entries to be overridden, removed, or fabricated from the host.
@@ -96,7 +96,7 @@ config MAGIC_SYSRQ
          unless you really know what this hack does.
 config SMP
-        bool "Symmetric multi-processing support (EXPERIMENTAL)"
+        bool "Symmetric multi-processing support"
        default n
        depends on BROKEN
        help
@@ -126,7 +126,7 @@ config NR_CPUS
        default "32"
 config HIGHMEM
-        bool "Highmem support (EXPERIMENTAL)"
+        bool "Highmem support"
        depends on !64BIT && BROKEN
        default n
        help
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f7a27fdb5098..63c0431daa3a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -225,7 +225,7 @@ config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 config HAVE_INTEL_TXT
        def_bool y
-        depends on EXPERIMENTAL && INTEL_IOMMU && ACPI
+        depends on INTEL_IOMMU && ACPI
 config X86_32_SMP
        def_bool y
@@ -642,7 +642,7 @@ config PARAVIRT
 config PARAVIRT_SPINLOCKS
        bool "Paravirtualization layer for spinlocks"
-        depends on PARAVIRT && SMP && EXPERIMENTAL
+        depends on PARAVIRT && SMP
        ---help---
          Paravirtualized spinlocks allow a pvops backend to replace the
          spinlock implementation with something virtualization-friendly
@@ -754,7 +754,7 @@ config GART_IOMMU
 config CALGARY_IOMMU
        bool "IBM Calgary IOMMU support"
        select SWIOTLB
-        depends on X86_64 && PCI && EXPERIMENTAL
+        depends on X86_64 && PCI
        ---help---
          Support for hardware IOMMUs in IBM's xSeries x366 and x460
          systems. Needed to run systems with more than 3GB of memory
@@ -796,7 +796,7 @@ config IOMMU_HELPER
 config MAXSMP
        bool "Enable Maximum number of SMP Processors and NUMA Nodes"
-        depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL
+        depends on X86_64 && SMP && DEBUG_KERNEL
        select CPUMASK_OFFSTACK
        ---help---
          Enable maximum number of CPUS and NUMA Nodes for this architecture.
@@ -1132,7 +1132,6 @@ config HIGHMEM64G
 endchoice
 choice
-        depends on EXPERIMENTAL
        prompt "Memory split" if EXPERT
        default VMSPLIT_3G
        depends on X86_32
@@ -1209,7 +1208,7 @@ config DIRECT_GBPAGES
 config NUMA
        bool "Numa Memory Allocation and Scheduler Support"
        depends on SMP
-        depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL)
+        depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI))
        default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)
        ---help---
          Enable NUMA (Non Uniform Memory Access) support.
@@ -1304,7 +1303,7 @@ config ARCH_DISCONTIGMEM_DEFAULT
 config ARCH_SPARSEMEM_ENABLE
        def_bool y
-        depends on X86_64 || NUMA || (EXPERIMENTAL && X86_32) || X86_32_NON_STANDARD
+        depends on X86_64 || NUMA || X86_32 || X86_32_NON_STANDARD
        select SPARSEMEM_STATIC if X86_32
        select SPARSEMEM_VMEMMAP_ENABLE if X86_64
@@ -1618,8 +1617,7 @@ config CRASH_DUMP
          For more details see Documentation/kdump/kdump.txt
 config KEXEC_JUMP
-        bool "kexec jump (EXPERIMENTAL)"
+        bool "kexec jump"
-        depends on EXPERIMENTAL
        depends on KEXEC && HIBERNATION
        ---help---
          Jump between original kernel and kexeced kernel and invoke
@@ -2063,7 +2061,7 @@ config PCI_MMCONFIG
 config PCI_CNB20LE_QUIRK
        bool "Read CNB20LE Host Bridge Windows" if EXPERT
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        help
          Read the PCI windows out of the CNB20LE host bridge. This allows
          PCI hotplug to work on systems with the CNB20LE chipset which do
@@ -2267,8 +2265,8 @@ config IA32_AOUT
          Support old a.out binaries in the 32bit emulation.
 config X86_X32
-        bool "x32 ABI for 64-bit mode (EXPERIMENTAL)"
+        bool "x32 ABI for 64-bit mode"
-        depends on X86_64 && IA32_EMULATION && EXPERIMENTAL
+        depends on X86_64 && IA32_EMULATION
        ---help---
          Include code to run binaries for the x32 native 32-bit ABI
          for 64-bit processors.  An x32 process gets access to the
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index 53c90fd412d1..21a13ce1d751 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -37,9 +37,8 @@ config RWSEM_GENERIC_SPINLOCK
        def_bool !RWSEM_XCHGADD_ALGORITHM
 config 3_LEVEL_PGTABLES
-        bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
+        bool "Three-level pagetables" if !64BIT
        default 64BIT
-        depends on EXPERIMENTAL
        help
        Three-level pagetables will let UML have more than 4G of physical
        memory.  All the memory that can't be mapped directly will be treated
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 4641d95651d3..3f37520035dd 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -134,8 +134,8 @@ config CRYPTO_NULL
          These are 'Null' algorithms, used by IPsec, which do nothing.
 config CRYPTO_PCRYPT
-        tristate "Parallel crypto engine (EXPERIMENTAL)"
+        tristate "Parallel crypto engine"
-        depends on SMP && EXPERIMENTAL
+        depends on SMP
        select PADATA
        select CRYPTO_MANAGER
        select CRYPTO_AEAD
@@ -292,7 +292,6 @@ config CRYPTO_HMAC
 config CRYPTO_XCBC
        tristate "XCBC support"
-        depends on EXPERIMENTAL
        select CRYPTO_HASH
        select CRYPTO_MANAGER
        help
@@ -303,7 +302,6 @@ config CRYPTO_XCBC
 config CRYPTO_VMAC
        tristate "VMAC support"
-        depends on EXPERIMENTAL
        select CRYPTO_HASH
        select CRYPTO_MANAGER
        help
@@ -932,8 +930,7 @@ config CRYPTO_KHAZAD
          <http://www.larc.usp.br/~pbarreto/KhazadPage.html>
 config CRYPTO_SALSA20
-        tristate "Salsa20 stream cipher algorithm (EXPERIMENTAL)"
+        tristate "Salsa20 stream cipher algorithm"
-        depends on EXPERIMENTAL
        select CRYPTO_BLKCIPHER
        help
          Salsa20 stream cipher algorithm.
@@ -945,9 +942,8 @@ config CRYPTO_SALSA20
          Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
 config CRYPTO_SALSA20_586
-        tristate "Salsa20 stream cipher algorithm (i586) (EXPERIMENTAL)"
+        tristate "Salsa20 stream cipher algorithm (i586)"
        depends on (X86 || UML_X86) && !64BIT
-        depends on EXPERIMENTAL
        select CRYPTO_BLKCIPHER
        help
          Salsa20 stream cipher algorithm.
@@ -959,9 +955,8 @@ config CRYPTO_SALSA20_586
          Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
 config CRYPTO_SALSA20_X86_64
-        tristate "Salsa20 stream cipher algorithm (x86_64) (EXPERIMENTAL)"
+        tristate "Salsa20 stream cipher algorithm (x86_64)"
        depends on (X86 || UML_X86) && 64BIT
-        depends on EXPERIMENTAL
        select CRYPTO_BLKCIPHER
        help
          Salsa20 stream cipher algorithm.
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 78105b3a5262..1a4ed64586a7 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -176,7 +176,6 @@ config ACPI_FAN
 config ACPI_DOCK
        bool "Dock"
-        depends on EXPERIMENTAL
        help
          This driver supports ACPI-controlled docking stations and removable
          drive bays such as the IBM Ultrabay and the Dell Module Bay.
@@ -202,7 +201,7 @@ config ACPI_PROCESSOR
          the module will be called processor.
 config ACPI_IPMI
        tristate "IPMI"
-        depends on EXPERIMENTAL && IPMI_SI && IPMI_HANDLER
+        depends on IPMI_SI && IPMI_HANDLER
        default n
        help
          This driver enables the ACPI to access the BMC controller. And it
@@ -214,14 +213,13 @@ config ACPI_IPMI
 config ACPI_HOTPLUG_CPU
        bool
-        depends on EXPERIMENTAL && ACPI_PROCESSOR && HOTPLUG_CPU
+        depends on ACPI_PROCESSOR && HOTPLUG_CPU
        select ACPI_CONTAINER
        default y
 config ACPI_PROCESSOR_AGGREGATOR
        tristate "Processor Aggregator"
        depends on ACPI_PROCESSOR
-        depends on EXPERIMENTAL
        depends on X86
        help
          ACPI 4.0 defines processor Aggregator, which enables OS to perform
@@ -337,8 +335,7 @@ config X86_PM_TIMER
          systems require this timer. 
 config ACPI_CONTAINER
-        bool "Container and Module Devices (EXPERIMENTAL)"
+        bool "Container and Module Devices"
-        depends on EXPERIMENTAL
        default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
        help
          This driver supports ACPI Container and Module devices (IDs
diff --git a/drivers/amba/tegra-ahb.c b/drivers/amba/tegra-ahb.c
index 536c166f4253..ab92785f54dc 100644
--- a/drivers/amba/tegra-ahb.c
+++ b/drivers/amba/tegra-ahb.c
@@ -20,6 +20,7 @@
 *
 */
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
@@ -257,9 +258,9 @@ static int tegra_ahb_probe(struct platform_device *pdev)
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        if (!res)
                return -ENODEV;
-        ahb->regs = devm_request_and_ioremap(&pdev->dev, res);
+        ahb->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (!ahb->regs)
+        if (IS_ERR(ahb->regs))
-                return -EBUSY;
+                return PTR_ERR(ahb->regs);
        ahb->dev = &pdev->dev;
        platform_set_drvdata(pdev, ahb);
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index e08d322d01d7..cdadce23e66d 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -163,7 +163,7 @@ config SATA_QSTOR
 config SATA_SX4
        tristate "Promise SATA SX4 support (Experimental)"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        help
          This option enables support for Promise Serial ATA SX4.
@@ -390,7 +390,7 @@ config PATA_CS5530
 config PATA_CS5535
        tristate "CS5535 PATA support (Experimental)"
-        depends on PCI && X86 && !X86_64 && EXPERIMENTAL
+        depends on PCI && X86 && !X86_64
        help
          This option enables support for the NatSemi/AMD CS5535
          companion chip used with the Geode processor family.
@@ -408,7 +408,7 @@ config PATA_CS5536
 config PATA_CYPRESS
        tristate "Cypress CY82C693 PATA support (Very Experimental)"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        help
          This option enables support for the Cypress/Contaq CY82C693
          chipset found in some Alpha systems
@@ -496,7 +496,7 @@ config PATA_IMX
 config PATA_IT8213
        tristate "IT8213 PATA support (Experimental)"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        help
          This option enables support for the ITE 821 PATA
          controllers via the new ATA layer.
@@ -589,7 +589,7 @@ config PATA_OLDPIIX
 config PATA_OPTIDMA
        tristate "OPTI FireStar PATA support (Very Experimental)"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        help
          This option enables DMA/PIO support for the later OPTi
          controllers found on some old motherboards and in some
@@ -616,7 +616,7 @@ config PATA_PDC_OLD
 config PATA_RADISYS
        tristate "RADISYS 82600 PATA support (Experimental)"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        help
          This option enables support for the RADISYS 82600
          PATA controllers via the new ATA layer
@@ -687,7 +687,7 @@ config PATA_SIS
 config PATA_TOSHIBA
        tristate "Toshiba Piccolo support (Experimental)"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        help
          Support for the Toshiba Piccolo controllers. Currently only the
          primary channel is supported by this driver.
@@ -738,7 +738,7 @@ comment "PIO-only SFF controllers"
 config PATA_AT32
        tristate "Atmel AVR32 PATA support (Experimental)"
-        depends on AVR32 && PLATFORM_AT32AP && EXPERIMENTAL
+        depends on AVR32 && PLATFORM_AT32AP
        help
          This option enables support for the IDE devices on the
          Atmel AT32AP platform.
@@ -755,7 +755,7 @@ config PATA_AT91
 config PATA_CMD640_PCI
        tristate "CMD640 PCI PATA support (Experimental)"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        help
          This option enables support for the CMD640 PCI IDE
          interface chip. Only the primary channel is currently
@@ -801,7 +801,7 @@ config PATA_NS87410
 config PATA_OPTI
        tristate "OPTI621/6215 PATA support (Very Experimental)"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        help
          This option enables full PIO support for the early Opti ATA
          controllers found on some old motherboards.
@@ -881,7 +881,7 @@ config PATA_SAMSUNG_CF
 config PATA_WINBOND_VLB
        tristate "Winbond W83759A VLB PATA support (Experimental)"
-        depends on ISA && EXPERIMENTAL
+        depends on ISA
        select PATA_LEGACY
        help
          Support for the Winbond W83759A controller on Vesa Local Bus
@@ -909,7 +909,7 @@ config ATA_GENERIC
 config PATA_LEGACY
        tristate "Legacy ISA PATA support (Experimental)"
-        depends on (ISA || PCI) && EXPERIMENTAL
+        depends on (ISA || PCI)
        help
          This option enables support for ISA/VLB/PCI bus legacy PATA
          ports and allows them to be accessed via the new ATA layer.
diff --git a/drivers/ata/pata_ep93xx.c b/drivers/ata/pata_ep93xx.c
index 556222f04731..c1bfaf43d109 100644
--- a/drivers/ata/pata_ep93xx.c
+++ b/drivers/ata/pata_ep93xx.c
@@ -31,6 +31,7 @@
 *   Copyright (C) 2006 Tower Technologies
 */
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -937,9 +938,9 @@ static int ep93xx_pata_probe(struct platform_device *pdev)
                goto err_rel_gpio;
        }
-        ide_base = devm_request_and_ioremap(&pdev->dev, mem_res);
+        ide_base = devm_ioremap_resource(&pdev->dev, mem_res);
-        if (!ide_base) {
+        if (IS_ERR(ide_base)) {
-                err = -ENXIO;
+                err = PTR_ERR(ide_base);
                goto err_rel_gpio;
        }
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index c8b453939da2..07abd9d76f7f 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -145,6 +145,17 @@ config EXTRA_FIRMWARE_DIR
          this option you can point it elsewhere, such as /lib/firmware/ or
          some other directory containing the firmware files.
+config FW_LOADER_USER_HELPER
+        bool "Fallback user-helper invocation for firmware loading"
+        depends on FW_LOADER
+        default y
+        help
+          This option enables / disables the invocation of user-helper
+          (e.g. udev) for loading firmware files as a fallback after the
+          direct file loading in kernel fails.  The user-mode helper is
+          no longer required unless you have a special firmware file that
+          resides in a non-standard path.
 config DEBUG_DRIVER
        bool "Driver Core verbose debug messages"
        depends on DEBUG_KERNEL
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 24eb07868344..519865b53f76 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -290,7 +290,7 @@ int bus_for_each_dev(struct bus_type *bus, struct device *start,
        struct device *dev;
        int error = 0;
-        if (!bus)
+        if (!bus || !bus->p)
                return -EINVAL;
        klist_iter_init_node(&bus->p->klist_devices, &i,
@@ -324,7 +324,7 @@ struct device *bus_find_device(struct bus_type *bus,
        struct klist_iter i;
        struct device *dev;
-        if (!bus)
+        if (!bus || !bus->p)
                return NULL;
        klist_iter_init_node(&bus->p->klist_devices, &i,
@@ -700,12 +700,12 @@ int bus_add_driver(struct device_driver *drv)
        if (error)
                goto out_unregister;
+        klist_add_tail(&priv->knode_bus, &bus->p->klist_drivers);
        if (drv->bus->p->drivers_autoprobe) {
                error = driver_attach(drv);
                if (error)
                        goto out_unregister;
        }
-        klist_add_tail(&priv->knode_bus, &bus->p->klist_drivers);
        module_add_driver(drv->owner, drv);
        error = driver_create_file(drv, &driver_attr_uevent);
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 03243d4002fd..3ce845471327 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -420,8 +420,8 @@ EXPORT_SYMBOL_GPL(class_for_each_device);
 * code.  There's no locking restriction.
 */
 struct device *class_find_device(struct class *class, struct device *start,
-                                 void *data,
+                                 const void *data,
-                                 int (*match)(struct device *, void *))
+                                 int (*match)(struct device *, const void *))
 {
        struct class_dev_iter iter;
        struct device *dev;
diff --git a/drivers/base/core.c b/drivers/base/core.c
index a235085e343c..56536f4b0f6b 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1617,9 +1617,9 @@ struct device *device_create(struct class *class, struct device *parent,
 }
 EXPORT_SYMBOL_GPL(device_create);
-static int __match_devt(struct device *dev, void *data)
+static int __match_devt(struct device *dev, const void *data)
 {
-        dev_t *devt = data;
+        const dev_t *devt = data;
        return dev->devt == *devt;
 }
@@ -1685,8 +1685,6 @@ EXPORT_SYMBOL_GPL(device_destroy);
 */
 int device_rename(struct device *dev, const char *new_name)
 {
-        char *old_class_name = NULL;
-        char *new_class_name = NULL;
        char *old_device_name = NULL;
        int error;
@@ -1717,8 +1715,6 @@ int device_rename(struct device *dev, const char *new_name)
 out:
        put_device(dev);
-        kfree(new_class_name);
-        kfree(old_class_name);
        kfree(old_device_name);
        return error;
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 656310156dde..bb5645ea0282 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -173,6 +173,8 @@ static int deferred_probe_initcall(void)
        driver_deferred_probe_enable = true;
        driver_deferred_probe_trigger();
+        /* Sort as many dependencies as possible before exiting initcalls */
+        flush_workqueue(deferred_wq);
        return 0;
 }
 late_initcall(deferred_probe_initcall);
diff --git a/drivers/base/dma-buf.c b/drivers/base/dma-buf.c
index a3f79c495a41..ff5b745c4705 100644
--- a/drivers/base/dma-buf.c
+++ b/drivers/base/dma-buf.c
@@ -134,15 +134,14 @@ EXPORT_SYMBOL_GPL(dma_buf_export);
 */
 int dma_buf_fd(struct dma_buf *dmabuf, int flags)
 {
-        int error, fd;
+        int fd;
        if (!dmabuf || !dmabuf->file)
                return -EINVAL;
-        error = get_unused_fd_flags(flags);
+        fd = get_unused_fd_flags(flags);
-        if (error < 0)
+        if (fd < 0)
-                return error;
+                return fd;
-        fd = error;
        fd_install(fd, dmabuf->file);
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index b392b353be39..4a223fedcd73 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -88,11 +88,6 @@ enum {
        FW_STATUS_ABORT,
 };
-enum fw_buf_fmt {
-        VMALLOC_BUF,    /* used in direct loading */
-        PAGE_BUF,       /* used in loading via userspace */
-};
 static int loading_timeout = 60;        /* In seconds */
 static inline long firmware_loading_timeout(void)
@@ -128,12 +123,14 @@ struct firmware_buf {
        struct completion completion;
        struct firmware_cache *fwc;
        unsigned long status;
-        enum fw_buf_fmt fmt;
        void *data;
        size_t size;
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+        bool is_paged_buf;
        struct page **pages;
        int nr_pages;
        int page_array_size;
+#endif
        char fw_id[];
 };
@@ -142,14 +139,6 @@ struct fw_cache_entry {
        char name[];
 };
-struct firmware_priv {
-        struct delayed_work timeout_work;
-        bool nowait;
-        struct device dev;
-        struct firmware_buf *buf;
-        struct firmware *fw;
-};
 struct fw_name_devm {
        unsigned long magic;
        char name[];
@@ -182,7 +171,6 @@ static struct firmware_buf *__allocate_fw_buf(const char *fw_name,
        strcpy(buf->fw_id, fw_name);
        buf->fwc = fwc;
        init_completion(&buf->completion);
-        buf->fmt = VMALLOC_BUF;
        pr_debug("%s: fw-%s buf=%p\n", __func__, fw_name, buf);
@@ -240,7 +228,6 @@ static void __fw_free_buf(struct kref *ref)
 {
        struct firmware_buf *buf = to_fwbuf(ref);
        struct firmware_cache *fwc = buf->fwc;
-        int i;
        pr_debug("%s: fw-%s buf=%p data=%p size=%u\n",
                 __func__, buf->fw_id, buf, buf->data,
@@ -249,13 +236,15 @@ static void __fw_free_buf(struct kref *ref)
        list_del(&buf->list);
        spin_unlock(&fwc->lock);
+#ifdef CONFIG_FW_LOADER_USER_HELPER
-        if (buf->fmt == PAGE_BUF) {
+        if (buf->is_paged_buf) {
+                int i;
                vunmap(buf->data);
                for (i = 0; i < buf->nr_pages; i++)
                        __free_page(buf->pages[i]);
                kfree(buf->pages);
        } else
+#endif
                vfree(buf->data);
        kfree(buf);
 }
@@ -319,7 +308,8 @@ static bool fw_read_file_contents(struct file *file, struct firmware_buf *fw_buf
        return true;
 }
-static bool fw_get_filesystem_firmware(struct firmware_buf *buf)
+static bool fw_get_filesystem_firmware(struct device *device,
+                                       struct firmware_buf *buf)
 {
        int i;
        bool success = false;
@@ -343,9 +333,114 @@ static bool fw_get_filesystem_firmware(struct firmware_buf *buf)
                        break;
        }
        __putname(path);
+        if (success) {
+                dev_dbg(device, "firmware: direct-loading firmware %s\n",
+                        buf->fw_id);
+                mutex_lock(&fw_lock);
+                set_bit(FW_STATUS_DONE, &buf->status);
+                complete_all(&buf->completion);
+                mutex_unlock(&fw_lock);
+        }
        return success;
 }
+/* firmware holds the ownership of pages */
+static void firmware_free_data(const struct firmware *fw)
+{
+        /* Loaded directly? */
+        if (!fw->priv) {
+                vfree(fw->data);
+                return;
+        }
+        fw_free_buf(fw->priv);
+}
+/* store the pages buffer info firmware from buf */
+static void fw_set_page_data(struct firmware_buf *buf, struct firmware *fw)
+{
+        fw->priv = buf;
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+        fw->pages = buf->pages;
+#endif
+        fw->size = buf->size;
+        fw->data = buf->data;
+        pr_debug("%s: fw-%s buf=%p data=%p size=%u\n",
+                 __func__, buf->fw_id, buf, buf->data,
+                 (unsigned int)buf->size);
+}
+#ifdef CONFIG_PM_SLEEP
+static void fw_name_devm_release(struct device *dev, void *res)
+{
+        struct fw_name_devm *fwn = res;
+        if (fwn->magic == (unsigned long)&fw_cache)
+                pr_debug("%s: fw_name-%s devm-%p released\n",
+                                __func__, fwn->name, res);
+}
+static int fw_devm_match(struct device *dev, void *res,
+                void *match_data)
+{
+        struct fw_name_devm *fwn = res;
+        return (fwn->magic == (unsigned long)&fw_cache) &&
+                !strcmp(fwn->name, match_data);
+}
+static struct fw_name_devm *fw_find_devm_name(struct device *dev,
+                const char *name)
+{
+        struct fw_name_devm *fwn;
+        fwn = devres_find(dev, fw_name_devm_release,
+                          fw_devm_match, (void *)name);
+        return fwn;
+}
+/* add firmware name into devres list */
+static int fw_add_devm_name(struct device *dev, const char *name)
+{
+        struct fw_name_devm *fwn;
+        fwn = fw_find_devm_name(dev, name);
+        if (fwn)
+                return 1;
+        fwn = devres_alloc(fw_name_devm_release, sizeof(struct fw_name_devm) +
+                           strlen(name) + 1, GFP_KERNEL);
+        if (!fwn)
+                return -ENOMEM;
+        fwn->magic = (unsigned long)&fw_cache;
+        strcpy(fwn->name, name);
+        devres_add(dev, fwn);
+        return 0;
+}
+#else
+static int fw_add_devm_name(struct device *dev, const char *name)
+{
+        return 0;
+}
+#endif
+/*
+ * user-mode helper code
+ */
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+struct firmware_priv {
+        struct delayed_work timeout_work;
+        bool nowait;
+        struct device dev;
+        struct firmware_buf *buf;
+        struct firmware *fw;
+};
 static struct firmware_priv *to_firmware_priv(struct device *dev)
 {
        return container_of(dev, struct firmware_priv, dev);
@@ -359,6 +454,9 @@ static void fw_load_abort(struct firmware_priv *fw_priv)
        complete_all(&buf->completion);
 }
+#define is_fw_load_aborted(buf) \
+        test_bit(FW_STATUS_ABORT, &(buf)->status)
 static ssize_t firmware_timeout_show(struct class *class,
                                     struct class_attribute *attr,
                                     char *buf)
@@ -435,17 +533,6 @@ static ssize_t firmware_loading_show(struct device *dev,
        return sprintf(buf, "%d\n", loading);
 }
-/* firmware holds the ownership of pages */
-static void firmware_free_data(const struct firmware *fw)
-{
-        /* Loaded directly? */
-        if (!fw->priv) {
-                vfree(fw->data);
-                return;
-        }
-        fw_free_buf(fw->priv);
-}
 /* Some architectures don't have PAGE_KERNEL_RO */
 #ifndef PAGE_KERNEL_RO
 #define PAGE_KERNEL_RO PAGE_KERNEL
@@ -454,7 +541,7 @@ static void firmware_free_data(const struct firmware *fw)
 /* one pages buffer should be mapped/unmapped only once */
 static int fw_map_pages_buf(struct firmware_buf *buf)
 {
-        if (buf->fmt != PAGE_BUF)
+        if (!buf->is_paged_buf)
                return 0;
        if (buf->data)
@@ -727,171 +814,16 @@ exit:
        return fw_priv;
 }
-/* store the pages buffer info firmware from buf */
+/* load a firmware via user helper */
-static void fw_set_page_data(struct firmware_buf *buf, struct firmware *fw)
-{
-        fw->priv = buf;
-        fw->pages = buf->pages;
-        fw->size = buf->size;
-        fw->data = buf->data;
-        pr_debug("%s: fw-%s buf=%p data=%p size=%u\n",
-                 __func__, buf->fw_id, buf, buf->data,
-                 (unsigned int)buf->size);
-}
-#ifdef CONFIG_PM_SLEEP
-static void fw_name_devm_release(struct device *dev, void *res)
-{
-        struct fw_name_devm *fwn = res;
-        if (fwn->magic == (unsigned long)&fw_cache)
-                pr_debug("%s: fw_name-%s devm-%p released\n",
-                                __func__, fwn->name, res);
-}
-static int fw_devm_match(struct device *dev, void *res,
-                void *match_data)
-{
-        struct fw_name_devm *fwn = res;
-        return (fwn->magic == (unsigned long)&fw_cache) &&
-                !strcmp(fwn->name, match_data);
-}
-static struct fw_name_devm *fw_find_devm_name(struct device *dev,
-                const char *name)
-{
-        struct fw_name_devm *fwn;
-        fwn = devres_find(dev, fw_name_devm_release,
-                          fw_devm_match, (void *)name);
-        return fwn;
-}
-/* add firmware name into devres list */
-static int fw_add_devm_name(struct device *dev, const char *name)
-{
-        struct fw_name_devm *fwn;
-        fwn = fw_find_devm_name(dev, name);
-        if (fwn)
-                return 1;
-        fwn = devres_alloc(fw_name_devm_release, sizeof(struct fw_name_devm) +
-                           strlen(name) + 1, GFP_KERNEL);
-        if (!fwn)
-                return -ENOMEM;
-        fwn->magic = (unsigned long)&fw_cache;
-        strcpy(fwn->name, name);
-        devres_add(dev, fwn);
-        return 0;
-}
-#else
-static int fw_add_devm_name(struct device *dev, const char *name)
-{
-        return 0;
-}
-#endif
-static void _request_firmware_cleanup(const struct firmware **firmware_p)
-{
-        release_firmware(*firmware_p);
-        *firmware_p = NULL;
-}
-static struct firmware_priv *
-_request_firmware_prepare(const struct firmware **firmware_p, const char *name,
-                          struct device *device, bool uevent, bool nowait)
-{
-        struct firmware *firmware;
-        struct firmware_priv *fw_priv = NULL;
-        struct firmware_buf *buf;
-        int ret;
-        if (!firmware_p)
-                return ERR_PTR(-EINVAL);
-        *firmware_p = firmware = kzalloc(sizeof(*firmware), GFP_KERNEL);
-        if (!firmware) {
-                dev_err(device, "%s: kmalloc(struct firmware) failed\n",
-                        __func__);
-                return ERR_PTR(-ENOMEM);
-        }
-        if (fw_get_builtin_firmware(firmware, name)) {
-                dev_dbg(device, "firmware: using built-in firmware %s\n", name);
-                return NULL;
-        }
-        ret = fw_lookup_and_allocate_buf(name, &fw_cache, &buf);
-        if (!ret)
-                fw_priv = fw_create_instance(firmware, name, device,
-                                uevent, nowait);
-        if (IS_ERR(fw_priv) || ret < 0) {
-                kfree(firmware);
-                *firmware_p = NULL;
-                return ERR_PTR(-ENOMEM);
-        } else if (fw_priv) {
-                fw_priv->buf = buf;
-                /*
-                 * bind with 'buf' now to avoid warning in failure path
-                 * of requesting firmware.
-                 */
-                firmware->priv = buf;
-                return fw_priv;
-        }
-        /* share the cached buf, which is inprogessing or completed */
- check_status:
-        mutex_lock(&fw_lock);
-        if (test_bit(FW_STATUS_ABORT, &buf->status)) {
-                fw_priv = ERR_PTR(-ENOENT);
-                firmware->priv = buf;
-                _request_firmware_cleanup(firmware_p);
-                goto exit;
-        } else if (test_bit(FW_STATUS_DONE, &buf->status)) {
-                fw_priv = NULL;
-                fw_set_page_data(buf, firmware);
-                goto exit;
-        }
-        mutex_unlock(&fw_lock);
-        wait_for_completion(&buf->completion);
-        goto check_status;
-exit:
-        mutex_unlock(&fw_lock);
-        return fw_priv;
-}
 static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent,
                                  long timeout)
 {
        int retval = 0;
        struct device *f_dev = &fw_priv->dev;
        struct firmware_buf *buf = fw_priv->buf;
-        struct firmware_cache *fwc = &fw_cache;
-        int direct_load = 0;
-        /* try direct loading from fs first */
-        if (fw_get_filesystem_firmware(buf)) {
-                dev_dbg(f_dev->parent, "firmware: direct-loading"
-                        " firmware %s\n", buf->fw_id);
-                mutex_lock(&fw_lock);
-                set_bit(FW_STATUS_DONE, &buf->status);
-                mutex_unlock(&fw_lock);
-                complete_all(&buf->completion);
-                direct_load = 1;
-                goto handle_fw;
-        }
        /* fall back on userspace loading */
-        buf->fmt = PAGE_BUF;
+        buf->is_paged_buf = true;
        dev_set_uevent_suppress(f_dev, true);
@@ -929,47 +861,196 @@ static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent,
        cancel_delayed_work_sync(&fw_priv->timeout_work);
-handle_fw:
+        fw_priv->buf = NULL;
+        device_remove_file(f_dev, &dev_attr_loading);
+err_del_bin_attr:
+        device_remove_bin_file(f_dev, &firmware_attr_data);
+err_del_dev:
+        device_del(f_dev);
+err_put_dev:
+        put_device(f_dev);
+        return retval;
+}
+static int fw_load_from_user_helper(struct firmware *firmware,
+                                    const char *name, struct device *device,
+                                    bool uevent, bool nowait, long timeout)
+{
+        struct firmware_priv *fw_priv;
+        fw_priv = fw_create_instance(firmware, name, device, uevent, nowait);
+        if (IS_ERR(fw_priv))
+                return PTR_ERR(fw_priv);
+        fw_priv->buf = firmware->priv;
+        return _request_firmware_load(fw_priv, uevent, timeout);
+}
+#else /* CONFIG_FW_LOADER_USER_HELPER */
+static inline int
+fw_load_from_user_helper(struct firmware *firmware, const char *name,
+                         struct device *device, bool uevent, bool nowait,
+                         long timeout)
+{
+        return -ENOENT;
+}
+/* No abort during direct loading */
+#define is_fw_load_aborted(buf) false
+#endif /* CONFIG_FW_LOADER_USER_HELPER */
+/* wait until the shared firmware_buf becomes ready (or error) */
+static int sync_cached_firmware_buf(struct firmware_buf *buf)
+{
+        int ret = 0;
+        mutex_lock(&fw_lock);
+        while (!test_bit(FW_STATUS_DONE, &buf->status)) {
+                if (is_fw_load_aborted(buf)) {
+                        ret = -ENOENT;
+                        break;
+                }
+                mutex_unlock(&fw_lock);
+                wait_for_completion(&buf->completion);
+                mutex_lock(&fw_lock);
+        }
+        mutex_unlock(&fw_lock);
+        return ret;
+}
+/* prepare firmware and firmware_buf structs;
+ * return 0 if a firmware is already assigned, 1 if need to load one,
+ * or a negative error code
+ */
+static int
+_request_firmware_prepare(struct firmware **firmware_p, const char *name,
+                          struct device *device)
+{
+        struct firmware *firmware;
+        struct firmware_buf *buf;
+        int ret;
+        *firmware_p = firmware = kzalloc(sizeof(*firmware), GFP_KERNEL);
+        if (!firmware) {
+                dev_err(device, "%s: kmalloc(struct firmware) failed\n",
+                        __func__);
+                return -ENOMEM;
+        }
+        if (fw_get_builtin_firmware(firmware, name)) {
+                dev_dbg(device, "firmware: using built-in firmware %s\n", name);
+                return 0; /* assigned */
+        }
+        ret = fw_lookup_and_allocate_buf(name, &fw_cache, &buf);
+        /*
+         * bind with 'buf' now to avoid warning in failure path
+         * of requesting firmware.
+         */
+        firmware->priv = buf;
+        if (ret > 0) {
+                ret = sync_cached_firmware_buf(buf);
+                if (!ret) {
+                        fw_set_page_data(buf, firmware);
+                        return 0; /* assigned */
+                }
+        }
+        if (ret < 0)
+                return ret;
+        return 1; /* need to load */
+}
+static int assign_firmware_buf(struct firmware *fw, struct device *device)
+{
+        struct firmware_buf *buf = fw->priv;
        mutex_lock(&fw_lock);
-        if (!buf->size || test_bit(FW_STATUS_ABORT, &buf->status))
+        if (!buf->size || is_fw_load_aborted(buf)) {
-                retval = -ENOENT;
+                mutex_unlock(&fw_lock);
+                return -ENOENT;
+        }
        /*
         * add firmware name into devres list so that we can auto cache
         * and uncache firmware for device.
         *
-         * f_dev->parent may has been deleted already, but the problem
+         * device may has been deleted already, but the problem
         * should be fixed in devres or driver core.
         */
-        if (!retval && f_dev->parent)
+        if (device)
-                fw_add_devm_name(f_dev->parent, buf->fw_id);
+                fw_add_devm_name(device, buf->fw_id);
        /*
         * After caching firmware image is started, let it piggyback
         * on request firmware.
         */
-        if (!retval && fwc->state == FW_LOADER_START_CACHE) {
+        if (buf->fwc->state == FW_LOADER_START_CACHE) {
                if (fw_cache_piggyback_on_request(buf->fw_id))
                        kref_get(&buf->ref);
        }
        /* pass the pages buffer to driver at the last minute */
-        fw_set_page_data(buf, fw_priv->fw);
+        fw_set_page_data(buf, fw);
-        fw_priv->buf = NULL;
        mutex_unlock(&fw_lock);
+        return 0;
+}
-        if (direct_load)
+/* called from request_firmware() and request_firmware_work_func() */
-                goto err_put_dev;
+static int
+_request_firmware(const struct firmware **firmware_p, const char *name,
+                  struct device *device, bool uevent, bool nowait)
+{
+        struct firmware *fw;
+        long timeout;
+        int ret;
-        device_remove_file(f_dev, &dev_attr_loading);
+        if (!firmware_p)
-err_del_bin_attr:
+                return -EINVAL;
-        device_remove_bin_file(f_dev, &firmware_attr_data);
-err_del_dev:
+        ret = _request_firmware_prepare(&fw, name, device);
-        device_del(f_dev);
+        if (ret <= 0) /* error or already assigned */
-err_put_dev:
+                goto out;
-        put_device(f_dev);
-        return retval;
+        ret = 0;
+        timeout = firmware_loading_timeout();
+        if (nowait) {
+                timeout = usermodehelper_read_lock_wait(timeout);
+                if (!timeout) {
+                        dev_dbg(device, "firmware: %s loading timed out\n",
+                                name);
+                        ret = -EBUSY;
+                        goto out;
+                }
+        } else {
+                ret = usermodehelper_read_trylock();
+                if (WARN_ON(ret)) {
+                        dev_err(device, "firmware: %s will not be loaded\n",
+                                name);
+                        goto out;
+                }
+        }
+        if (!fw_get_filesystem_firmware(device, fw->priv))
+                ret = fw_load_from_user_helper(fw, name, device,
+                                               uevent, nowait, timeout);
+        if (!ret)
+                ret = assign_firmware_buf(fw, device);
+        usermodehelper_read_unlock();
+ out:
+        if (ret < 0) {
+                release_firmware(fw);
+                fw = NULL;
+        }
+        *firmware_p = fw;
+        return ret;
 }
 /**
@@ -996,26 +1077,7 @@ int
 request_firmware(const struct firmware **firmware_p, const char *name,
                 struct device *device)
 {
-        struct firmware_priv *fw_priv;
+        return _request_firmware(firmware_p, name, device, true, false);
-        int ret;
-        fw_priv = _request_firmware_prepare(firmware_p, name, device, true,
-                                            false);
-        if (IS_ERR_OR_NULL(fw_priv))
-                return PTR_RET(fw_priv);
-        ret = usermodehelper_read_trylock();
-        if (WARN_ON(ret)) {
-                dev_err(device, "firmware: %s will not be loaded\n", name);
-        } else {
-                ret = _request_firmware_load(fw_priv, true,
-                                        firmware_loading_timeout());
-                usermodehelper_read_unlock();
-        }
-        if (ret)
-                _request_firmware_cleanup(firmware_p);
-        return ret;
 }
 /**
@@ -1046,33 +1108,13 @@ static void request_firmware_work_func(struct work_struct *work)
 {
        struct firmware_work *fw_work;
        const struct firmware *fw;
-        struct firmware_priv *fw_priv;
-        long timeout;
-        int ret;
        fw_work = container_of(work, struct firmware_work, work);
-        fw_priv = _request_firmware_prepare(&fw, fw_work->name, fw_work->device,
-                        fw_work->uevent, true);
-        if (IS_ERR_OR_NULL(fw_priv)) {
-                ret = PTR_RET(fw_priv);
-                goto out;
-        }
-        timeout = usermodehelper_read_lock_wait(firmware_loading_timeout());
-        if (timeout) {
-                ret = _request_firmware_load(fw_priv, fw_work->uevent, timeout);
-                usermodehelper_read_unlock();
-        } else {
-                dev_dbg(fw_work->device, "firmware: %s loading timed out\n",
-                        fw_work->name);
-                ret = -EAGAIN;
-        }
-        if (ret)
-                _request_firmware_cleanup(&fw);
- out:
+        _request_firmware(&fw, fw_work->name, fw_work->device,
+                          fw_work->uevent, true);
        fw_work->cont(fw, fw_work->context);
-        put_device(fw_work->device);
+        put_device(fw_work->device); /* taken in request_firmware_nowait() */
        module_put(fw_work->module);
        kfree(fw_work);
@@ -1474,7 +1516,11 @@ static void __init fw_cache_init(void)
 static int __init firmware_class_init(void)
 {
        fw_cache_init();
+#ifdef CONFIG_FW_LOADER_USER_HELPER
        return class_register(&firmware_class);
+#else
+        return 0;
+#endif
 }
 static void __exit firmware_class_exit(void)
@@ -1483,7 +1529,9 @@ static void __exit firmware_class_exit(void)
        unregister_syscore_ops(&fw_syscore_ops);
        unregister_pm_notifier(&fw_cache.pm_notify);
 #endif
+#ifdef CONFIG_FW_LOADER_USER_HELPER
        class_unregister(&firmware_class);
+#endif
 }
 fs_initcall(firmware_class_init);
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 987604d56c83..83d0b17ba1c2 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -494,8 +494,8 @@ store_hard_offline_page(struct device *dev,
        return ret ? ret : count;
 }
-static DEVICE_ATTR(soft_offline_page, 0644, NULL, store_soft_offline_page);
+static DEVICE_ATTR(soft_offline_page, S_IWUSR, NULL, store_soft_offline_page);
-static DEVICE_ATTR(hard_offline_page, 0644, NULL, store_hard_offline_page);
+static DEVICE_ATTR(hard_offline_page, S_IWUSR, NULL, store_hard_offline_page);
 static __init int memory_fail_init(void)
 {
diff --git a/drivers/block/paride/Kconfig b/drivers/block/paride/Kconfig
index 28cf3082d442..efefb5ac3004 100644
--- a/drivers/block/paride/Kconfig
+++ b/drivers/block/paride/Kconfig
@@ -205,8 +205,8 @@ config PARIDE_EPAT
          support.
 config PARIDE_EPATC8
-        bool "Support c7/c8 chips (EXPERIMENTAL)"
+        bool "Support c7/c8 chips"
-        depends on PARIDE_EPAT && EXPERIMENTAL
+        depends on PARIDE_EPAT
        help
          This option enables support for the newer Shuttle EP1284 (aka c7 and
          c8) chip. You need this if you are using any recent Imation SuperDisk
diff --git a/drivers/char/hw_random/exynos-rng.c b/drivers/char/hw_random/exynos-rng.c
index 48bbfeca4b5d..4673fc4ad931 100644
--- a/drivers/char/hw_random/exynos-rng.c
+++ b/drivers/char/hw_random/exynos-rng.c
@@ -104,6 +104,7 @@ static int exynos_read(struct hwrng *rng, void *buf,
 static int exynos_rng_probe(struct platform_device *pdev)
 {
        struct exynos_rng *exynos_rng;
+        struct resource *res;
        exynos_rng = devm_kzalloc(&pdev->dev, sizeof(struct exynos_rng),
                                        GFP_KERNEL);
@@ -120,10 +121,10 @@ static int exynos_rng_probe(struct platform_device *pdev)
                return -ENOENT;
        }
-        exynos_rng->mem = devm_request_and_ioremap(&pdev->dev,
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-                        platform_get_resource(pdev, IORESOURCE_MEM, 0));
+        exynos_rng->mem = devm_ioremap_resource(&pdev->dev, res);
-        if (!exynos_rng->mem)
+        if (IS_ERR(exynos_rng->mem))
-                return -EBUSY;
+                return PTR_ERR(exynos_rng->mem);
        platform_set_drvdata(pdev, exynos_rng);
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index d8c54e253761..749dc16ca2cc 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -124,9 +124,9 @@ static int omap_rng_probe(struct platform_device *pdev)
                goto err_ioremap;
        }
-        priv->base = devm_request_and_ioremap(&pdev->dev, priv->mem_res);
+        priv->base = devm_ioremap_resource(&pdev->dev, priv->mem_res);
-        if (!priv->base) {
+        if (IS_ERR(priv->base)) {
-                ret = -ENOMEM;
+                ret = PTR_ERR(priv->base);
                goto err_ioremap;
        }
        dev_set_drvdata(&pdev->dev, priv);
diff --git a/drivers/char/hw_random/tx4939-rng.c b/drivers/char/hw_random/tx4939-rng.c
index de473ef3882b..30991989d65b 100644
--- a/drivers/char/hw_random/tx4939-rng.c
+++ b/drivers/char/hw_random/tx4939-rng.c
@@ -7,6 +7,7 @@
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 */
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -115,9 +116,9 @@ static int __init tx4939_rng_probe(struct platform_device *dev)
        rngdev = devm_kzalloc(&dev->dev, sizeof(*rngdev), GFP_KERNEL);
        if (!rngdev)
                return -ENOMEM;
-        rngdev->base = devm_request_and_ioremap(&dev->dev, r);
+        rngdev->base = devm_ioremap_resource(&dev->dev, r);
-        if (!rngdev->base)
+        if (IS_ERR(rngdev->base))
-                return -EBUSY;
+                return PTR_ERR(rngdev->base);
        rngdev->rng.name = dev_name(&dev->dev);
        rngdev->rng.data_present = tx4939_rng_data_present;
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 7f333af1c059..030ddf6dd3f1 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -21,8 +21,8 @@ config ARM_S3C2416_CPUFREQ
          If in doubt, say N.
 config ARM_S3C2416_CPUFREQ_VCORESCALE
-        bool "Allow voltage scaling for S3C2416 arm core (EXPERIMENTAL)"
+        bool "Allow voltage scaling for S3C2416 arm core"
-        depends on ARM_S3C2416_CPUFREQ && REGULATOR && EXPERIMENTAL
+        depends on ARM_S3C2416_CPUFREQ && REGULATOR
        help
          Enable CPU voltage scaling when entering the dvs mode.
          It uses information gathered through existing hardware and
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86
index 98e5abbe8f26..d7dc0ed6adb0 100644
--- a/drivers/cpufreq/Kconfig.x86
+++ b/drivers/cpufreq/Kconfig.x86
@@ -187,7 +187,7 @@ config X86_SPEEDSTEP_ICH
 config X86_SPEEDSTEP_SMI
        tristate "Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)"
        select CPU_FREQ_TABLE
-        depends on X86_32 && EXPERIMENTAL
+        depends on X86_32
        help
          This adds the CPUFreq driver for certain mobile Intel Pentium III
          (Coppermine), all mobile Intel Pentium III-M (Tualatin)
@@ -219,7 +219,7 @@ config X86_P4_CLOCKMOD
 config X86_CPUFREQ_NFORCE2
        tristate "nVidia nForce2 FSB changing"
-        depends on X86_32 && EXPERIMENTAL
+        depends on X86_32
        help
          This adds the CPUFreq driver for FSB changing on nVidia nForce2
          platforms.
@@ -255,7 +255,7 @@ config X86_LONGHAUL
 config X86_E_POWERSAVER
        tristate "VIA C7 Enhanced PowerSaver (DANGEROUS)"
        select CPU_FREQ_TABLE
-        depends on X86_32 && EXPERIMENTAL
+        depends on X86_32
        help
          This adds the CPUFreq driver for VIA C7 processors.  However, this driver
          does not have any safeguards to prevent operating the CPU out of spec
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 3e8ba02ba292..b33d1f6e1333 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -14,6 +14,7 @@
 #include <linux/delay.h>
 #include <linux/dmaengine.h>
 #include <linux/dma-mapping.h>
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -1489,9 +1490,9 @@ static int dw_probe(struct platform_device *pdev)
        if (irq < 0)
                return irq;
-        regs = devm_request_and_ioremap(&pdev->dev, io);
+        regs = devm_ioremap_resource(&pdev->dev, io);
-        if (!regs)
+        if (IS_ERR(regs))
-                return -EBUSY;
+                return PTR_ERR(regs);
        dw_params = dma_read_byaddr(regs, DW_PARAMS);
        autocfg = dw_params >> DW_PARAMS_EN & 0x1;
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index a7dcf78b1ff8..70b8975d107e 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -14,6 +14,7 @@
 * http://www.opensource.org/licenses/gpl-license.html
 * http://www.gnu.org/copyleft/gpl.html
 */
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/mm.h>
@@ -1010,9 +1011,9 @@ static int __init imxdma_probe(struct platform_device *pdev)
        imxdma->devtype = pdev->id_entry->driver_data;
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        imxdma->base = devm_request_and_ioremap(&pdev->dev, res);
+        imxdma->base = devm_ioremap_resource(&pdev->dev, res);
-        if (!imxdma->base)
+        if (IS_ERR(imxdma->base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(imxdma->base);
        irq = platform_get_irq(pdev, 0);
        if (irq < 0)
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index c6d98c00f05c..dc7466563507 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -5,6 +5,7 @@
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
@@ -782,9 +783,9 @@ static int mmp_pdma_probe(struct platform_device *op)
        if (!iores)
                return -EINVAL;
-        pdev->base = devm_request_and_ioremap(pdev->dev, iores);
+        pdev->base = devm_ioremap_resource(pdev->dev, iores);
-        if (!pdev->base)
+        if (IS_ERR(pdev->base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(pdev->base);
        of_id = of_match_device(mmp_pdma_dt_ids, pdev->dev);
        if (of_id)
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index a9f1cd56689c..43d5a6c33297 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -9,6 +9,7 @@
 *
 */
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
@@ -547,9 +548,9 @@ static int mmp_tdma_probe(struct platform_device *pdev)
        if (!iores)
                return -EINVAL;
-        tdev->base = devm_request_and_ioremap(&pdev->dev, iores);
+        tdev->base = devm_ioremap_resource(&pdev->dev, iores);
-        if (!tdev->base)
+        if (IS_ERR(tdev->base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(tdev->base);
        INIT_LIST_HEAD(&tdev->device.channels);
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index 3cad856fe67f..58c1896271e1 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -21,6 +21,7 @@
 #include <linux/delay.h>
 #include <linux/dmaengine.h>
 #include <linux/dma-mapping.h>
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -1240,12 +1241,9 @@ static int tegra_dma_probe(struct platform_device *pdev)
                return -EINVAL;
        }
-        tdma->base_addr = devm_request_and_ioremap(&pdev->dev, res);
+        tdma->base_addr = devm_ioremap_resource(&pdev->dev, res);
-        if (!tdma->base_addr) {
+        if (IS_ERR(tdma->base_addr))
-                dev_err(&pdev->dev,
+                return PTR_ERR(tdma->base_addr);
-                        "Cannot request memregion/iomap dma address\n");
-                return -EADDRNOTAVAIL;
-        }
        tdma->dma_clk = devm_clk_get(&pdev->dev, NULL);
        if (IS_ERR(tdma->dma_clk)) {
diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
index 66719925970f..acb709bfac0f 100644
--- a/drivers/edac/Kconfig
+++ b/drivers/edac/Kconfig
@@ -158,7 +158,7 @@ config EDAC_I3000
 config EDAC_I3200
        tristate "Intel 3200"
-        depends on EDAC_MM_EDAC && PCI && X86 && EXPERIMENTAL
+        depends on EDAC_MM_EDAC && PCI && X86
        help
          Support for error detection and correction on the Intel
          3200 and 3210 server chipsets.
@@ -224,7 +224,7 @@ config EDAC_I7300
 config EDAC_SBRIDGE
        tristate "Intel Sandy-Bridge Integrated MC"
        depends on EDAC_MM_EDAC && PCI && X86_64 && X86_MCE_INTEL
-        depends on PCI_MMCONFIG && EXPERIMENTAL
+        depends on PCI_MMCONFIG
        help
          Support for error detection and correction the Intel
          Sandy Bridge Integrated Memory Controller.
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index e5116fa85140..1855a6fd2b0a 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -66,7 +66,7 @@ config DEBUG_GPIO
 config GPIO_SYSFS
        bool "/sys/class/gpio/... (sysfs interface)"
-        depends on SYSFS && EXPERIMENTAL
+        depends on SYSFS
        help
          Say Y here to add a sysfs interface for GPIOs.
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index 6819d63cb167..7472182967ce 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -33,6 +33,7 @@
 *   interrupts.
 */
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/gpio.h>
 #include <linux/irq.h>
@@ -544,11 +545,9 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
        mvchip->chip.of_node = np;
        spin_lock_init(&mvchip->lock);
-        mvchip->membase = devm_request_and_ioremap(&pdev->dev, res);
+        mvchip->membase = devm_ioremap_resource(&pdev->dev, res);
-        if (! mvchip->membase) {
+        if (IS_ERR(mvchip->membase))
-                dev_err(&pdev->dev, "Cannot ioremap\n");
+                return PTR_ERR(mvchip->membase);
-                return -ENOMEM;
-        }
        /* The Armada XP has a second range of registers for the
         * per-CPU registers */
@@ -559,11 +558,10 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
                        return -ENODEV;
                }
-                mvchip->percpu_membase = devm_request_and_ioremap(&pdev->dev, res);
+                mvchip->percpu_membase = devm_ioremap_resource(&pdev->dev,
-                if (! mvchip->percpu_membase) {
+                                                               res);
-                        dev_err(&pdev->dev, "Cannot ioremap\n");
+                if (IS_ERR(mvchip->percpu_membase)) 
-                        return -ENOMEM;
+                        return PTR_ERR(mvchip->percpu_membase);
-                }
        }
        /*
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index fa2a63cad32e..45d97c46831a 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -20,6 +20,7 @@
 * MA  02110-1301, USA.
 */
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -253,12 +254,14 @@ static int mxs_gpio_probe(struct platform_device *pdev)
                        parent = of_get_parent(np);
                        base = of_iomap(parent, 0);
                        of_node_put(parent);
+                        if (!base)
+                                return -EADDRNOTAVAIL;
                } else {
                        iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-                        base = devm_request_and_ioremap(&pdev->dev, iores);
+                        base = devm_ioremap_resource(&pdev->dev, iores);
+                        if (IS_ERR(base))
+                                return PTR_ERR(base);
                }
-                if (!base)
-                        return -EADDRNOTAVAIL;
        }
        port->base = base;
diff --git a/drivers/gpio/gpio-spear-spics.c b/drivers/gpio/gpio-spear-spics.c
index 5f45fc4ed5d1..7a4bf7c0d98f 100644
--- a/drivers/gpio/gpio-spear-spics.c
+++ b/drivers/gpio/gpio-spear-spics.c
@@ -140,11 +140,9 @@ static int spics_gpio_probe(struct platform_device *pdev)
                return -ENOMEM;
        }
-        spics->base = devm_request_and_ioremap(&pdev->dev, res);
+        spics->base = devm_ioremap_resource(&pdev->dev, res);
-        if (!spics->base) {
+        if (IS_ERR(spics->base))
-                dev_err(&pdev->dev, "request and ioremap fail\n");
+                return PTR_ERR(spics->base);
-                return -ENOMEM;
-        }
        if (of_property_read_u32(np, "st-spics,peripcfg-reg",
                                &spics->perip_cfg))
diff --git a/drivers/gpio/gpio-stp-xway.c b/drivers/gpio/gpio-stp-xway.c
index 85841ee70b17..c20e05151212 100644
--- a/drivers/gpio/gpio-stp-xway.c
+++ b/drivers/gpio/gpio-stp-xway.c
@@ -214,11 +214,10 @@ static int xway_stp_probe(struct platform_device *pdev)
        if (!chip)
                return -ENOMEM;
-        chip->virt = devm_request_and_ioremap(&pdev->dev, res);
+        chip->virt = devm_ioremap_resource(&pdev->dev, res);
-        if (!chip->virt) {
+        if (IS_ERR(chip->virt))
-                dev_err(&pdev->dev, "failed to remap STP memory\n");
+                return PTR_ERR(chip->virt);
-                return -ENOMEM;
+        
-        }
        chip->gc.dev = &pdev->dev;
        chip->gc.label = "stp-xway";
        chip->gc.direction_output = xway_stp_dir_out;
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 63cb643d4b5a..414ad912232f 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -17,6 +17,7 @@
 *
 */
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
@@ -450,11 +451,9 @@ static int tegra_gpio_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        regs = devm_request_and_ioremap(&pdev->dev, res);
+        regs = devm_ioremap_resource(&pdev->dev, res);
-        if (!regs) {
+        if (IS_ERR(regs))
-                dev_err(&pdev->dev, "Couldn't ioremap regs\n");
+                return PTR_ERR(regs);
-                return -ENODEV;
-        }
        for (i = 0; i < tegra_gpio_bank_count; i++) {
                for (j = 0; j < 4; j++) {
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 199fca15f270..5359ca78130f 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -806,7 +806,7 @@ fail_unlock:
 }
 EXPORT_SYMBOL_GPL(gpio_export);
-static int match_export(struct device *dev, void *data)
+static int match_export(struct device *dev, const void *data)
 {
        return dev_get_drvdata(dev) == data;
 }
diff --git a/drivers/gpu/drm/ast/Kconfig b/drivers/gpu/drm/ast/Kconfig
index a277b1257888..da4a51eae824 100644
--- a/drivers/gpu/drm/ast/Kconfig
+++ b/drivers/gpu/drm/ast/Kconfig
@@ -1,6 +1,6 @@
 config DRM_AST
        tristate "AST server chips"
-        depends on DRM && PCI && EXPERIMENTAL
+        depends on DRM && PCI
        select DRM_TTM
        select FB_SYS_COPYAREA
        select FB_SYS_FILLRECT
diff --git a/drivers/gpu/drm/cirrus/Kconfig b/drivers/gpu/drm/cirrus/Kconfig
index fc154dd75296..bf67b22723f9 100644
--- a/drivers/gpu/drm/cirrus/Kconfig
+++ b/drivers/gpu/drm/cirrus/Kconfig
@@ -1,6 +1,6 @@
 config DRM_CIRRUS_QEMU
        tristate "Cirrus driver for QEMU emulated device"
-        depends on DRM && PCI && EXPERIMENTAL
+        depends on DRM && PCI
        select FB_SYS_FILLRECT
        select FB_SYS_COPYAREA
        select FB_SYS_IMAGEBLIT
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
index 67a83e69544b..411f69b76e84 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
@@ -1785,11 +1785,9 @@ static int fimc_probe(struct platform_device *pdev)
        /* resource memory */
        ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        ctx->regs = devm_request_and_ioremap(dev, ctx->regs_res);
+        ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);
-        if (!ctx->regs) {
+        if (IS_ERR(ctx->regs))
-                dev_err(dev, "failed to map registers.\n");
+                return PTR_ERR(ctx->regs);
-                return -ENXIO;
-        }
        /* resource irq */
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 9537761931ee..36493ce71f9a 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -913,11 +913,9 @@ static int fimd_probe(struct platform_device *pdev)
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        ctx->regs = devm_request_and_ioremap(&pdev->dev, res);
+        ctx->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (!ctx->regs) {
+        if (IS_ERR(ctx->regs))
-                dev_err(dev, "failed to map registers\n");
+                return PTR_ERR(ctx->regs);
-                return -ENXIO;
-        }
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (!res) {
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index 9a4c08e7453c..fb2f81b8063d 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -1136,10 +1136,9 @@ static int g2d_probe(struct platform_device *pdev)
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        g2d->regs = devm_request_and_ioremap(&pdev->dev, res);
+        g2d->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (!g2d->regs) {
+        if (IS_ERR(g2d->regs)) {
-                dev_err(dev, "failed to remap I/O memory\n");
+                ret = PTR_ERR(g2d->regs);
-                ret = -ENXIO;
                goto err_put_clk;
        }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
index 8140753ec9c8..7841c3b8a20e 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
@@ -1692,11 +1692,9 @@ static int gsc_probe(struct platform_device *pdev)
        /* resource memory */
        ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        ctx->regs = devm_request_and_ioremap(dev, ctx->regs_res);
+        ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);
-        if (!ctx->regs) {
+        if (IS_ERR(ctx->regs))
-                dev_err(dev, "failed to map registers.\n");
+                return PTR_ERR(ctx->regs);
-                return -ENXIO;
-        }
        /* resource irq */
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
index f976e29def6e..a40b9fb60240 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
@@ -656,11 +656,9 @@ static int rotator_probe(struct platform_device *pdev)
                                platform_get_device_id(pdev)->driver_data;
        rot->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        rot->regs = devm_request_and_ioremap(dev, rot->regs_res);
+        rot->regs = devm_ioremap_resource(dev, rot->regs_res);
-        if (!rot->regs) {
+        if (IS_ERR(rot->regs))
-                dev_err(dev, "failed to map register\n");
+                return PTR_ERR(rot->regs);
-                return -ENXIO;
-        }
        rot->irq = platform_get_irq(pdev, 0);
        if (rot->irq < 0) {
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index fbab3c468603..233247505ff8 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -2501,11 +2501,9 @@ static int hdmi_probe(struct platform_device *pdev)
                return -ENOENT;
        }
-        hdata->regs = devm_request_and_ioremap(&pdev->dev, res);
+        hdata->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (!hdata->regs) {
+        if (IS_ERR(hdata->regs))
-                DRM_ERROR("failed to map registers\n");
+                return PTR_ERR(hdata->regs);
-                return -ENXIO;
-        }
        ret = devm_gpio_request(&pdev->dev, hdata->hpd_gpio, "HPD");
        if (ret) {
diff --git a/drivers/gpu/drm/gma500/Kconfig b/drivers/gpu/drm/gma500/Kconfig
index 42e665c7e90a..1188f0fe7e4f 100644
--- a/drivers/gpu/drm/gma500/Kconfig
+++ b/drivers/gpu/drm/gma500/Kconfig
@@ -1,6 +1,6 @@
 config DRM_GMA500
        tristate "Intel GMA5/600 KMS Framebuffer"
-        depends on DRM && PCI && X86 && EXPERIMENTAL
+        depends on DRM && PCI && X86
        select FB_CFB_COPYAREA
        select FB_CFB_FILLRECT
        select FB_CFB_IMAGEBLIT
diff --git a/drivers/gpu/drm/mgag200/Kconfig b/drivers/gpu/drm/mgag200/Kconfig
index d63013497f66..b487cdec5ee7 100644
--- a/drivers/gpu/drm/mgag200/Kconfig
+++ b/drivers/gpu/drm/mgag200/Kconfig
@@ -1,6 +1,6 @@
 config DRM_MGAG200
        tristate "Kernel modesetting driver for MGA G200 server engines"
-        depends on DRM && PCI && EXPERIMENTAL
+        depends on DRM && PCI
        select FB_SYS_FILLRECT
        select FB_SYS_COPYAREA
        select FB_SYS_IMAGEBLIT
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 656b2e3334a6..d365c6dff0fb 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -764,11 +764,9 @@ static int tegra_dc_probe(struct platform_device *pdev)
                return -ENXIO;
        }
-        dc->regs = devm_request_and_ioremap(&pdev->dev, regs);
+        dc->regs = devm_ioremap_resource(&pdev->dev, regs);
-        if (!dc->regs) {
+        if (IS_ERR(dc->regs))
-                dev_err(&pdev->dev, "failed to remap registers\n");
+                return PTR_ERR(dc->regs);
-                return -ENXIO;
-        }
        dc->irq = platform_get_irq(pdev, 0);
        if (dc->irq < 0) {
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index e060c7e6434d..266af7879240 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -1259,9 +1259,9 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
        if (!regs)
                return -ENXIO;
-        hdmi->regs = devm_request_and_ioremap(&pdev->dev, regs);
+        hdmi->regs = devm_ioremap_resource(&pdev->dev, regs);
-        if (!hdmi->regs)
+        if (IS_ERR(hdmi->regs))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(hdmi->regs);
        err = platform_get_irq(pdev, 0);
        if (err < 0)
diff --git a/drivers/gpu/drm/tegra/host1x.c b/drivers/gpu/drm/tegra/host1x.c
index 5d17b113a6fc..92e25a7e00ea 100644
--- a/drivers/gpu/drm/tegra/host1x.c
+++ b/drivers/gpu/drm/tegra/host1x.c
@@ -139,9 +139,9 @@ static int tegra_host1x_probe(struct platform_device *pdev)
        host1x->irq = err;
-        host1x->regs = devm_request_and_ioremap(&pdev->dev, regs);
+        host1x->regs = devm_ioremap_resource(&pdev->dev, regs);
-        if (!host1x->regs) {
+        if (IS_ERR(host1x->regs)) {
-                err = -EADDRNOTAVAIL;
+                err = PTR_ERR(host1x->regs);
                goto err;
        }
diff --git a/drivers/gpu/drm/udl/Kconfig b/drivers/gpu/drm/udl/Kconfig
index 56e0bf31d425..6222af19f456 100644
--- a/drivers/gpu/drm/udl/Kconfig
+++ b/drivers/gpu/drm/udl/Kconfig
@@ -1,6 +1,6 @@
 config DRM_UDL
        tristate "DisplayLink"
-        depends on DRM && EXPERIMENTAL
+        depends on DRM
        depends on USB_ARCH_HAS_HCD
        select DRM_USB
        select FB_SYS_FILLRECT
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 2f8c76becc6b..46cde098c11c 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -89,7 +89,7 @@ source drivers/i2c/busses/Kconfig
 config I2C_STUB
        tristate "I2C/SMBus Test Stub"
-        depends on EXPERIMENTAL && m
+        depends on m
        default 'n'
        help
          This module may be useful to developers of SMBus client drivers,
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index bdca5111eb9d..9b94a78ca776 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -22,7 +22,7 @@ config I2C_ALI1535
 config I2C_ALI1563
        tristate "ALI 1563"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        help
          If you say yes to this option, support will be included for the SMB
          Host controller on Acer Labs Inc. (ALI) M1563 South Bridges.  The SMB
@@ -56,7 +56,7 @@ config I2C_AMD756
 config I2C_AMD756_S4882
        tristate "SMBus multiplexing on the Tyan S4882"
-        depends on I2C_AMD756 && X86 && EXPERIMENTAL
+        depends on I2C_AMD756 && X86
        help
          Enabling this option will add specific SMBus support for the Tyan
          S4882 motherboard.  On this 4-CPU board, the SMBus is multiplexed
@@ -164,7 +164,7 @@ config I2C_NFORCE2
 config I2C_NFORCE2_S4985
        tristate "SMBus multiplexing on the Tyan S4985"
-        depends on I2C_NFORCE2 && X86 && EXPERIMENTAL
+        depends on I2C_NFORCE2 && X86
        help
          Enabling this option will add specific SMBus support for the Tyan
          S4985 motherboard.  On this 4-CPU board, the SMBus is multiplexed
@@ -215,7 +215,7 @@ config I2C_SIS96X
 config I2C_VIA
        tristate "VIA VT82C586B"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        select I2C_ALGOBIT
        help
          If you say yes to this option, support will be included for the VIA
@@ -267,7 +267,7 @@ comment "Mac SMBus host controller drivers"
 config I2C_HYDRA
        tristate "CHRP Apple Hydra Mac I/O I2C interface"
-        depends on PCI && PPC_CHRP && EXPERIMENTAL
+        depends on PCI && PPC_CHRP
        select I2C_ALGOBIT
        help
          This supports the use of the I2C interface in the Apple Hydra Mac
@@ -293,7 +293,7 @@ comment "I2C system bus drivers (mostly embedded / system-on-chip)"
 config I2C_AT91
        tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
-        depends on ARCH_AT91 && EXPERIMENTAL
+        depends on ARCH_AT91
        help
          This supports the use of the I2C interface on Atmel AT91
          processors.
@@ -519,7 +519,6 @@ config I2C_NUC900
 config I2C_OCORES
        tristate "OpenCores I2C Controller"
-        depends on EXPERIMENTAL
        help
          If you say yes to this option, support will be included for the
          OpenCores I2C controller. For details see
@@ -712,7 +711,7 @@ config I2C_OCTEON
 config I2C_XILINX
        tristate "Xilinx I2C Controller"
-        depends on EXPERIMENTAL && HAS_IOMEM
+        depends on HAS_IOMEM
        help
          If you say yes to this option, support will be included for the
          Xilinx I2C controller.
@@ -803,7 +802,6 @@ config I2C_PARPORT_LIGHT
 config I2C_TAOS_EVM
        tristate "TAOS evaluation module"
-        depends on EXPERIMENTAL
        select SERIO
        select SERIO_SERPORT
        default n
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index 2bfc04d0a1b1..ebc224154695 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -723,9 +723,9 @@ static int at91_twi_probe(struct platform_device *pdev)
        if (!dev->pdata)
                return -ENODEV;
-        dev->base = devm_request_and_ioremap(&pdev->dev, mem);
+        dev->base = devm_ioremap_resource(&pdev->dev, mem);
-        if (!dev->base)
+        if (IS_ERR(dev->base))
-                return -EBUSY;
+                return PTR_ERR(dev->base);
        dev->irq = platform_get_irq(pdev, 0);
        if (dev->irq < 0)
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index b9734747d610..a71ece63e917 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -511,9 +511,9 @@ static int __init i2c_imx_probe(struct platform_device *pdev)
                return -ENOENT;
        }
-        base = devm_request_and_ioremap(&pdev->dev, res);
+        base = devm_ioremap_resource(&pdev->dev, res);
-        if (!base)
+        if (IS_ERR(base))
-                return -EBUSY;
+                return PTR_ERR(base);
        i2c_imx = devm_kzalloc(&pdev->dev, sizeof(struct imx_i2c_struct),
                                GFP_KERNEL);
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
index a873d0ad1acb..a337d08a392d 100644
--- a/drivers/i2c/busses/i2c-ocores.c
+++ b/drivers/i2c/busses/i2c-ocores.c
@@ -12,6 +12,7 @@
 * kind, whether express or implied.
 */
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -364,9 +365,9 @@ static int ocores_i2c_probe(struct platform_device *pdev)
        if (!i2c)
                return -ENOMEM;
-        i2c->base = devm_request_and_ioremap(&pdev->dev, res);
+        i2c->base = devm_ioremap_resource(&pdev->dev, res);
-        if (!i2c->base)
+        if (IS_ERR(i2c->base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(i2c->base);
        pdata = pdev->dev.platform_data;
        if (pdata) {
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 4cc2f0528c88..3ee188679cf1 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -1103,11 +1103,9 @@ omap_i2c_probe(struct platform_device *pdev)
                return -ENOMEM;
        }
-        dev->base = devm_request_and_ioremap(&pdev->dev, mem);
+        dev->base = devm_ioremap_resource(&pdev->dev, mem);
-        if (!dev->base) {
+        if (IS_ERR(dev->base))
-                dev_err(&pdev->dev, "I2C region already claimed\n");
+                return PTR_ERR(dev->base);
-                return -ENOMEM;
-        }
        match = of_match_device(of_match_ptr(omap_i2c_of_match), &pdev->dev);
        if (match) {
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 9bd4d73d29e3..4ba4a95b6b26 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -642,11 +642,9 @@ static int rcar_i2c_probe(struct platform_device *pdev)
        if (ret < 0)
                return ret;
-        priv->io = devm_request_and_ioremap(dev, res);
+        priv->io = devm_ioremap_resource(dev, res);
-        if (!priv->io) {
+        if (IS_ERR(priv->io))
-                dev_err(dev, "cannot ioremap\n");
+                return PTR_ERR(priv->io);
-                return -ENODEV;
-        }
        priv->irq = platform_get_irq(pdev, 0);
        init_waitqueue_head(&priv->wait);
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index a290d089ceaf..c807a6d14f0c 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -1042,11 +1042,10 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
                goto err_clk;
        }
-        i2c->regs = devm_request_and_ioremap(&pdev->dev, res);
+        i2c->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (i2c->regs == NULL) {
+        if (IS_ERR(i2c->regs)) {
-                dev_err(&pdev->dev, "cannot map IO\n");
+                ret = PTR_ERR(i2c->regs);
-                ret = -ENXIO;
                goto err_clk;
        }
diff --git a/drivers/i2c/busses/i2c-sirf.c b/drivers/i2c/busses/i2c-sirf.c
index e03381aee34f..5a7ad240bd26 100644
--- a/drivers/i2c/busses/i2c-sirf.c
+++ b/drivers/i2c/busses/i2c-sirf.c
@@ -309,10 +309,9 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
                goto out;
        }
-        siic->base = devm_request_and_ioremap(&pdev->dev, mem_res);
+        siic->base = devm_ioremap_resource(&pdev->dev, mem_res);
-        if (siic->base == NULL) {
+        if (IS_ERR(siic->base)) {
-                dev_err(&pdev->dev, "IO remap failed!\n");
+                err = PTR_ERR(siic->base);
-                err = -ENOMEM;
                goto out;
        }
diff --git a/drivers/i2c/busses/i2c-stu300.c b/drivers/i2c/busses/i2c-stu300.c
index 580a0c04cb42..60195b590637 100644
--- a/drivers/i2c/busses/i2c-stu300.c
+++ b/drivers/i2c/busses/i2c-stu300.c
@@ -888,11 +888,11 @@ stu300_probe(struct platform_device *pdev)
        if (!res)
                return -ENOENT;
-        dev->virtbase = devm_request_and_ioremap(&pdev->dev, res);
+        dev->virtbase = devm_ioremap_resource(&pdev->dev, res);
        dev_dbg(&pdev->dev, "initialize bus device I2C%d on virtual "
                "base %p\n", bus_nr, dev->virtbase);
-        if (!dev->virtbase)
+        if (IS_ERR(dev->virtbase))
-                return -ENOMEM;
+                return PTR_ERR(dev->virtbase);
        dev->irq = platform_get_irq(pdev, 0);
        ret = devm_request_irq(&pdev->dev, dev->irq, stu300_irh, 0, NAME, dev);
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 7b38877ffec1..1fb30099dac4 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -669,11 +669,9 @@ static int tegra_i2c_probe(struct platform_device *pdev)
                return -EINVAL;
        }
-        base = devm_request_and_ioremap(&pdev->dev, res);
+        base = devm_ioremap_resource(&pdev->dev, res);
-        if (!base) {
+        if (IS_ERR(base))
-                dev_err(&pdev->dev, "Cannot request/ioremap I2C registers\n");
+                return PTR_ERR(base);
-                return -EADDRNOTAVAIL;
-        }
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (!res) {
diff --git a/drivers/i2c/busses/i2c-xlr.c b/drivers/i2c/busses/i2c-xlr.c
index a005265461da..93f029e98c0d 100644
--- a/drivers/i2c/busses/i2c-xlr.c
+++ b/drivers/i2c/busses/i2c-xlr.c
@@ -7,6 +7,7 @@
 * warranty of any kind, whether express or implied.
 */
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -225,11 +226,9 @@ static int xlr_i2c_probe(struct platform_device *pdev)
                return -ENOMEM;
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        priv->iobase = devm_request_and_ioremap(&pdev->dev, res);
+        priv->iobase = devm_ioremap_resource(&pdev->dev, res);
-        if (!priv->iobase) {
+        if (IS_ERR(priv->iobase))
-                dev_err(&pdev->dev, "devm_request_and_ioremap failed\n");
+                return PTR_ERR(priv->iobase);
-                return -EBUSY;
-        }
        priv->adap.dev.parent = &pdev->dev;
        priv->adap.owner        = THIS_MODULE;
diff --git a/drivers/i2c/muxes/Kconfig b/drivers/i2c/muxes/Kconfig
index a0edd9854218..0be5b83c08fa 100644
--- a/drivers/i2c/muxes/Kconfig
+++ b/drivers/i2c/muxes/Kconfig
@@ -19,7 +19,6 @@ config I2C_MUX_GPIO
 config I2C_MUX_PCA9541
        tristate "NXP PCA9541 I2C Master Selector"
-        depends on EXPERIMENTAL
        help
          If you say yes here you get support for the NXP PCA9541
          I2C Master Selector.
@@ -29,7 +28,6 @@ config I2C_MUX_PCA9541
 config I2C_MUX_PCA954x
        tristate "Philips PCA954x I2C Mux/switches"
-        depends on EXPERIMENTAL
        help
          If you say yes here you get support for the Philips PCA954x
          I2C mux/switch devices.
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 5a26584934ca..3c4417a1d438 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -322,8 +322,7 @@ config BLK_DEV_GENERIC
          which otherwise might not be supported.
 config BLK_DEV_OPTI621
-        tristate "OPTi 82C621 chipset enhanced support (EXPERIMENTAL)"
+        tristate "OPTi 82C621 chipset enhanced support"
-        depends on EXPERIMENTAL
        select BLK_DEV_IDEPCI
        help
          This is a driver for the OPTi 82C621 EIDE controller.
@@ -417,7 +416,6 @@ config BLK_DEV_CY82C693
 config BLK_DEV_CS5520
        tristate "Cyrix CS5510/20 MediaGX chipset support (VERY EXPERIMENTAL)"
-        depends on EXPERIMENTAL
        select BLK_DEV_IDEDMA_PCI
        help
          Include support for PIO tuning and virtual DMA on the Cyrix MediaGX
@@ -761,8 +759,8 @@ config BLK_DEV_GAYLE
          use Gayle IDE interfaces on the Zorro expansion bus.
 config BLK_DEV_BUDDHA
-        tristate "Buddha/Catweasel/X-Surf IDE interface support (EXPERIMENTAL)"
+        tristate "Buddha/Catweasel/X-Surf IDE interface support"
-        depends on ZORRO && EXPERIMENTAL
+        depends on ZORRO
        help
          This is the IDE driver for the IDE interfaces on the Buddha, Catweasel
          and X-Surf expansion boards.  It supports up to two interfaces on the
diff --git a/drivers/idle/Kconfig b/drivers/idle/Kconfig
index 8489eb58a52c..4732dfc15447 100644
--- a/drivers/idle/Kconfig
+++ b/drivers/idle/Kconfig
@@ -18,7 +18,6 @@ config I7300_IDLE_IOAT_CHANNEL
 config I7300_IDLE
        tristate "Intel chipset idle memory power saving driver"
        select I7300_IDLE_IOAT_CHANNEL
-        depends on EXPERIMENTAL
        help
          Enable memory power savings when idle with certain Intel server
          chipsets. The chipset must have I/O AT support, such as the
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index a526c0e3aaa8..83c836ba600f 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -557,9 +557,9 @@ static int at91_adc_probe(struct platform_device *pdev)
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        st->reg_base = devm_request_and_ioremap(&pdev->dev, res);
+        st->reg_base = devm_ioremap_resource(&pdev->dev, res);
-        if (!st->reg_base) {
+        if (IS_ERR(st->reg_base)) {
-                ret = -ENOMEM;
+                ret = PTR_ERR(st->reg_base);
                goto error_free_device;
        }
diff --git a/drivers/input/keyboard/spear-keyboard.c b/drivers/input/keyboard/spear-keyboard.c
index 695d237417d6..cb1e8f614631 100644
--- a/drivers/input/keyboard/spear-keyboard.c
+++ b/drivers/input/keyboard/spear-keyboard.c
@@ -228,11 +228,9 @@ static int spear_kbd_probe(struct platform_device *pdev)
                kbd->suspended_rate = pdata->suspended_rate;
        }
-        kbd->io_base = devm_request_and_ioremap(&pdev->dev, res);
+        kbd->io_base = devm_ioremap_resource(&pdev->dev, res);
-        if (!kbd->io_base) {
+        if (IS_ERR(kbd->io_base))
-                dev_err(&pdev->dev, "request-ioremap failed for kbd_region\n");
+                return PTR_ERR(kbd->io_base);
-                return -ENOMEM;
-        }
        kbd->clk = devm_clk_get(&pdev->dev, NULL);
        if (IS_ERR(kbd->clk))
diff --git a/drivers/input/serio/arc_ps2.c b/drivers/input/serio/arc_ps2.c
index b571eb3e4efc..c52e3e589f72 100644
--- a/drivers/input/serio/arc_ps2.c
+++ b/drivers/input/serio/arc_ps2.c
@@ -8,6 +8,7 @@
 * Driver is originally developed by Pavel Sokolov <psokolov@synopsys.com>
 */
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/input.h>
@@ -206,9 +207,9 @@ static int arc_ps2_probe(struct platform_device *pdev)
                return -ENOMEM;
        }
-        arc_ps2->addr = devm_request_and_ioremap(&pdev->dev, res);
+        arc_ps2->addr = devm_ioremap_resource(&pdev->dev, res);
-        if (!arc_ps2->addr)
+        if (IS_ERR(arc_ps2->addr))
-                return -EBUSY;
+                return PTR_ERR(arc_ps2->addr);
        dev_info(&pdev->dev, "irq = %d, address = 0x%p, ports = %i\n",
                 irq, arc_ps2->addr, ARC_PS2_PORTS);
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index e39f9dbf297b..01068987809d 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -65,8 +65,8 @@ config AMD_IOMMU_STATS
          If unsure, say N.
 config AMD_IOMMU_V2
-        tristate "AMD IOMMU Version 2 driver (EXPERIMENTAL)"
+        tristate "AMD IOMMU Version 2 driver"
-        depends on AMD_IOMMU && PROFILING && EXPERIMENTAL
+        depends on AMD_IOMMU && PROFILING
        select MMU_NOTIFIER
        ---help---
          This option enables support for the AMD IOMMUv2 features of the IOMMU
@@ -119,8 +119,8 @@ config INTEL_IOMMU_FLOPPY_WA
          16MiB to make floppy (an ISA device) work.
 config IRQ_REMAP
-        bool "Support for Interrupt Remapping (EXPERIMENTAL)"
+        bool "Support for Interrupt Remapping"
-        depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI && EXPERIMENTAL
+        depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI
        select DMAR_TABLE
        ---help---
          Supports Interrupt remapping for IO-APIC and MSI devices.
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index fc178893789a..f08dbcd2f175 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -19,6 +19,7 @@
 #define pr_fmt(fmt)     "%s(): " fmt, __func__
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/spinlock.h>
@@ -1176,9 +1177,9 @@ static int tegra_smmu_probe(struct platform_device *pdev)
                res = platform_get_resource(pdev, IORESOURCE_MEM, i);
                if (!res)
                        return -ENODEV;
-                smmu->regs[i] = devm_request_and_ioremap(&pdev->dev, res);
+                smmu->regs[i] = devm_ioremap_resource(&pdev->dev, res);
-                if (!smmu->regs[i])
+                if (IS_ERR(smmu->regs[i]))
-                        return -EBUSY;
+                        return PTR_ERR(smmu->regs[i]);
        }
        err = of_get_dma_window(dev->of_node, NULL, 0, NULL, &base, &size);
diff --git a/drivers/isdn/hisax/Kconfig b/drivers/isdn/hisax/Kconfig
index 70ecd0c19500..5313c9ea44dc 100644
--- a/drivers/isdn/hisax/Kconfig
+++ b/drivers/isdn/hisax/Kconfig
@@ -389,8 +389,8 @@ config HISAX_TELES_CS
 comment "HiSax sub driver modules"
 config HISAX_ST5481
-        tristate "ST5481 USB ISDN modem (EXPERIMENTAL)"
+        tristate "ST5481 USB ISDN modem"
-        depends on USB && EXPERIMENTAL
+        depends on USB
        select ISDN_HDLC
        select CRC_CCITT
        select BITREVERSE
@@ -399,20 +399,19 @@ config HISAX_ST5481
          e.g. the BeWan Gazel 128 USB
 config HISAX_HFCUSB
-        tristate "HFC USB based ISDN modems (EXPERIMENTAL)"
+        tristate "HFC USB based ISDN modems"
-        depends on USB && EXPERIMENTAL
+        depends on USB
        help
          This enables the driver for HFC USB based ISDN modems.
 config HISAX_HFC4S8S
-        tristate "HFC-4S/8S based ISDN cards (EXPERIMENTAL)"
+        tristate "HFC-4S/8S based ISDN cards"
-        depends on EXPERIMENTAL
        help
          This enables the driver for HFC-4S/8S based ISDN cards.
 config HISAX_FRITZ_PCIPNP
-        tristate "AVM Fritz!Card PCI/PCIv2/PnP support (EXPERIMENTAL)"
+        tristate "AVM Fritz!Card PCI/PCIv2/PnP support"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        help
          This enables the driver for the AVM Fritz!Card PCI,
          Fritz!Card PCI v2 and Fritz!Card PnP.
diff --git a/drivers/isdn/mISDN/core.c b/drivers/isdn/mISDN/core.c
index 3e245712bba7..da30c5cb9609 100644
--- a/drivers/isdn/mISDN/core.c
+++ b/drivers/isdn/mISDN/core.c
@@ -168,13 +168,13 @@ static struct class mISDN_class = {
 };
 static int
-_get_mdevice(struct device *dev, void *id)
+_get_mdevice(struct device *dev, const void *id)
 {
        struct mISDNdevice *mdev = dev_to_mISDN(dev);
        if (!mdev)
                return 0;
-        if (mdev->id != *(u_int *)id)
+        if (mdev->id != *(const u_int *)id)
                return 0;
        return 1;
 }
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index b58bc8a14b9c..4469b441b785 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -154,7 +154,7 @@ config LEDS_HP6XX
 config LEDS_PCA9532
        tristate "LED driver for PCA9532 dimmer"
        depends on LEDS_CLASS
-        depends on I2C && INPUT && EXPERIMENTAL
+        depends on I2C && INPUT
        help
          This option enables support for NXP pca9532
          LED controller. It is generally only useful
diff --git a/drivers/lguest/Kconfig b/drivers/lguest/Kconfig
index 34ae49dc557c..6cdcdb0d3d58 100644
--- a/drivers/lguest/Kconfig
+++ b/drivers/lguest/Kconfig
@@ -1,6 +1,6 @@
 config LGUEST
        tristate "Linux hypervisor example code"
-        depends on X86_32 && EXPERIMENTAL && EVENTFD
+        depends on X86_32 && EVENTFD
        select HVC_DRIVER
        ---help---
          This is a very simple module which allows you to run
diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig
index a555da64224e..696238b9f0f7 100644
--- a/drivers/macintosh/Kconfig
+++ b/drivers/macintosh/Kconfig
@@ -278,7 +278,7 @@ config PMAC_RACKMETER
 config SENSORS_AMS
        tristate "Apple Motion Sensor driver"
-        depends on PPC_PMAC && !PPC64 && INPUT && ((ADB_PMU && I2C = y) || (ADB_PMU && !I2C) || I2C) && EXPERIMENTAL
+        depends on PPC_PMAC && !PPC64 && INPUT && ((ADB_PMU && I2C = y) || (ADB_PMU && !I2C) || I2C)
        select INPUT_POLLDEV
        help
          Support for the motion sensor included in PowerBooks. Includes
diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
index 4ef0d80b57f4..8567a7a64104 100644
--- a/drivers/media/Kconfig
+++ b/drivers/media/Kconfig
@@ -79,8 +79,7 @@ config MEDIA_RC_SUPPORT
 #
 config MEDIA_CONTROLLER
-        bool "Media Controller API (EXPERIMENTAL)"
+        bool "Media Controller API"
-        depends on EXPERIMENTAL
        depends on MEDIA_CAMERA_SUPPORT
        ---help---
          Enable the media controller API used to query media devices internal
@@ -100,8 +99,8 @@ config VIDEO_DEV
        default y
 config VIDEO_V4L2_SUBDEV_API
-        bool "V4L2 sub-device userspace API (EXPERIMENTAL)"
+        bool "V4L2 sub-device userspace API"
-        depends on VIDEO_DEV && MEDIA_CONTROLLER && EXPERIMENTAL
+        depends on VIDEO_DEV && MEDIA_CONTROLLER
        ---help---
          Enables the V4L2 sub-device pad-level userspace API used to configure
          video format, size and frame rate between hardware blocks.
diff --git a/drivers/media/pci/cx25821/Kconfig b/drivers/media/pci/cx25821/Kconfig
index 5f6b54213713..4017c9420348 100644
--- a/drivers/media/pci/cx25821/Kconfig
+++ b/drivers/media/pci/cx25821/Kconfig
@@ -18,7 +18,7 @@ config VIDEO_CX25821
 config VIDEO_CX25821_ALSA
        tristate "Conexant 25821 DMA audio support"
-        depends on VIDEO_CX25821 && SND && EXPERIMENTAL
+        depends on VIDEO_CX25821 && SND
        select SND_PCM
        ---help---
          This is a video4linux driver for direct (DMA) audio on
diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index 3dcfea612c42..33241120a58c 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -98,8 +98,8 @@ config VIDEO_OMAP2
          This is a v4l2 driver for the TI OMAP2 camera capture interface
 config VIDEO_OMAP3
-        tristate "OMAP 3 Camera support (EXPERIMENTAL)"
+        tristate "OMAP 3 Camera support"
-        depends on OMAP_IOVMM && VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API && ARCH_OMAP3 && EXPERIMENTAL
+        depends on OMAP_IOVMM && VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API && ARCH_OMAP3
        ---help---
          Driver for an OMAP 3 camera controller.
@@ -169,8 +169,8 @@ config VIDEO_SAMSUNG_S5P_G2D
          2d graphics accelerator.
 config VIDEO_SAMSUNG_S5P_JPEG
-        tristate "Samsung S5P/Exynos4 JPEG codec driver (EXPERIMENTAL)"
+        tristate "Samsung S5P/Exynos4 JPEG codec driver"
-        depends on VIDEO_DEV && VIDEO_V4L2 && PLAT_S5P && EXPERIMENTAL
+        depends on VIDEO_DEV && VIDEO_V4L2 && PLAT_S5P
        select VIDEOBUF2_DMA_CONTIG
        select V4L2_MEM2MEM_DEV
        ---help---
diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index 2b1b9f30e1f9..c1a07133cc56 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -1098,11 +1098,9 @@ static int gsc_probe(struct platform_device *pdev)
        mutex_init(&gsc->lock);
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        gsc->regs = devm_request_and_ioremap(dev, res);
+        gsc->regs = devm_ioremap_resource(dev, res);
-        if (!gsc->regs) {
+        if (IS_ERR(gsc->regs))
-                dev_err(dev, "failed to map registers\n");
+                return PTR_ERR(gsc->regs);
-                return -ENOENT;
-        }
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (!res) {
diff --git a/drivers/media/platform/mx2_emmaprp.c b/drivers/media/platform/mx2_emmaprp.c
index 6b155d7be8e0..4b9e0a28616a 100644
--- a/drivers/media/platform/mx2_emmaprp.c
+++ b/drivers/media/platform/mx2_emmaprp.c
@@ -941,9 +941,9 @@ static int emmaprp_probe(struct platform_device *pdev)
        platform_set_drvdata(pdev, pcdev);
-        pcdev->base_emma = devm_request_and_ioremap(&pdev->dev, res_emma);
+        pcdev->base_emma = devm_ioremap_resource(&pdev->dev, res_emma);
-        if (!pcdev->base_emma) {
+        if (IS_ERR(pcdev->base_emma)) {
-                ret = -ENXIO;
+                ret = PTR_ERR(pcdev->base_emma);
                goto rel_vdev;
        }
diff --git a/drivers/media/platform/s3c-camif/camif-core.c b/drivers/media/platform/s3c-camif/camif-core.c
index e2716c35f8f1..09a8c9cac5c9 100644
--- a/drivers/media/platform/s3c-camif/camif-core.c
+++ b/drivers/media/platform/s3c-camif/camif-core.c
@@ -433,11 +433,9 @@ static int s3c_camif_probe(struct platform_device *pdev)
        mres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        camif->io_base = devm_request_and_ioremap(dev, mres);
+        camif->io_base = devm_ioremap_resource(dev, mres);
-        if (!camif->io_base) {
+        if (IS_ERR(camif->io_base))
-                dev_err(dev, "failed to obtain I/O memory\n");
+                return PTR_ERR(camif->io_base);
-                return -ENOENT;
-        }
        ret = camif_request_irqs(pdev, camif);
        if (ret < 0)
diff --git a/drivers/media/platform/s5p-fimc/Kconfig b/drivers/media/platform/s5p-fimc/Kconfig
index c16b20d86ed2..f997a5203b7c 100644
--- a/drivers/media/platform/s5p-fimc/Kconfig
+++ b/drivers/media/platform/s5p-fimc/Kconfig
@@ -2,7 +2,6 @@
 config VIDEO_SAMSUNG_S5P_FIMC
        bool "Samsung S5P/EXYNOS SoC camera interface driver (experimental)"
        depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && PLAT_S5P && PM_RUNTIME
-        depends on EXPERIMENTAL
        help
          Say Y here to enable camera host interface devices for
          Samsung S5P and EXYNOS SoC series.
diff --git a/drivers/media/platform/s5p-fimc/fimc-core.c b/drivers/media/platform/s5p-fimc/fimc-core.c
index 545b46ae12a1..acc0f84ffa56 100644
--- a/drivers/media/platform/s5p-fimc/fimc-core.c
+++ b/drivers/media/platform/s5p-fimc/fimc-core.c
@@ -909,11 +909,9 @@ static int fimc_probe(struct platform_device *pdev)
        mutex_init(&fimc->lock);
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        fimc->regs = devm_request_and_ioremap(&pdev->dev, res);
+        fimc->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (fimc->regs == NULL) {
+        if (IS_ERR(fimc->regs))
-                dev_err(&pdev->dev, "Failed to obtain io memory\n");
+                return PTR_ERR(fimc->regs);
-                return -ENOENT;
-        }
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (res == NULL) {
diff --git a/drivers/media/platform/s5p-fimc/fimc-lite.c b/drivers/media/platform/s5p-fimc/fimc-lite.c
index ed67220d0a64..67db9f8102e4 100644
--- a/drivers/media/platform/s5p-fimc/fimc-lite.c
+++ b/drivers/media/platform/s5p-fimc/fimc-lite.c
@@ -1426,11 +1426,9 @@ static int fimc_lite_probe(struct platform_device *pdev)
        mutex_init(&fimc->lock);
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        fimc->regs = devm_request_and_ioremap(&pdev->dev, res);
+        fimc->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (fimc->regs == NULL) {
+        if (IS_ERR(fimc->regs))
-                dev_err(&pdev->dev, "Failed to obtain io memory\n");
+                return PTR_ERR(fimc->regs);
-                return -ENOENT;
-        }
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (res == NULL) {
diff --git a/drivers/media/platform/s5p-fimc/mipi-csis.c b/drivers/media/platform/s5p-fimc/mipi-csis.c
index ec3fa7d75306..7abae012f55e 100644
--- a/drivers/media/platform/s5p-fimc/mipi-csis.c
+++ b/drivers/media/platform/s5p-fimc/mipi-csis.c
@@ -686,11 +686,9 @@ static int s5pcsis_probe(struct platform_device *pdev)
        }
        mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        state->regs = devm_request_and_ioremap(&pdev->dev, mem_res);
+        state->regs = devm_ioremap_resource(&pdev->dev, mem_res);
-        if (state->regs == NULL) {
+        if (IS_ERR(state->regs))
-                dev_err(&pdev->dev, "Failed to request and remap io memory\n");
+                return PTR_ERR(state->regs);
-                return -ENXIO;
-        }
        state->irq = platform_get_irq(pdev, 0);
        if (state->irq < 0) {
diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c
index 1bfbc325836b..6ed259fb1046 100644
--- a/drivers/media/platform/s5p-g2d/g2d.c
+++ b/drivers/media/platform/s5p-g2d/g2d.c
@@ -708,11 +708,9 @@ static int g2d_probe(struct platform_device *pdev)
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        dev->regs = devm_request_and_ioremap(&pdev->dev, res);
+        dev->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (dev->regs == NULL) {
+        if (IS_ERR(dev->regs))
-                        dev_err(&pdev->dev, "Failed to obtain io memory\n");
+                return PTR_ERR(dev->regs);
-                        return -ENOENT;
-        }
        dev->clk = clk_get(&pdev->dev, "sclk_fimg2d");
        if (IS_ERR_OR_NULL(dev->clk)) {
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c
index 17983c4c9a9a..3b023752bcb4 100644
--- a/drivers/media/platform/s5p-jpeg/jpeg-core.c
+++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c
@@ -1325,11 +1325,9 @@ static int s5p_jpeg_probe(struct platform_device *pdev)
        /* memory-mapped registers */
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        jpeg->regs = devm_request_and_ioremap(&pdev->dev, res);
+        jpeg->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (jpeg->regs == NULL) {
+        if (IS_ERR(jpeg->regs))
-                dev_err(&pdev->dev, "Failed to obtain io memory\n");
+                return PTR_ERR(jpeg->regs);
-                return -ENOENT;
-        }
        /* interrupt service routine registration */
        jpeg->irq = ret = platform_get_irq(pdev, 0);
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 681bc6ba149d..8b7fbc7cc04d 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -1047,11 +1047,9 @@ static int s5p_mfc_probe(struct platform_device *pdev)
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        dev->regs_base = devm_request_and_ioremap(&pdev->dev, res);
+        dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
-        if (dev->regs_base == NULL) {
+        if (IS_ERR(dev->regs_base))
-                dev_err(&pdev->dev, "Failed to obtain io memory\n");
+                return PTR_ERR(dev->regs_base);
-                return -ENOENT;
-        }
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (res == NULL) {
diff --git a/drivers/media/platform/s5p-tv/Kconfig b/drivers/media/platform/s5p-tv/Kconfig
index ea11a513033f..7b659bd09bfd 100644
--- a/drivers/media/platform/s5p-tv/Kconfig
+++ b/drivers/media/platform/s5p-tv/Kconfig
@@ -7,9 +7,8 @@
 # Licensed under GPL
 config VIDEO_SAMSUNG_S5P_TV
-        bool "Samsung TV driver for S5P platform (experimental)"
+        bool "Samsung TV driver for S5P platform"
        depends on PLAT_S5P && PM_RUNTIME
-        depends on EXPERIMENTAL
        default n
        ---help---
          Say Y here to enable selecting the TV output devices for
diff --git a/drivers/media/platform/soc_camera/mx2_camera.c b/drivers/media/platform/soc_camera/mx2_camera.c
index 8bda2c908aba..1abdc7d9c744 100644
--- a/drivers/media/platform/soc_camera/mx2_camera.c
+++ b/drivers/media/platform/soc_camera/mx2_camera.c
@@ -1707,9 +1707,9 @@ static int mx27_camera_emma_init(struct platform_device *pdev)
                goto out;
        }
-        pcdev->base_emma = devm_request_and_ioremap(pcdev->dev, res_emma);
+        pcdev->base_emma = devm_ioremap_resource(pcdev->dev, res_emma);
-        if (!pcdev->base_emma) {
+        if (IS_ERR(pcdev->base_emma)) {
-                err = -EADDRNOTAVAIL;
+                err = PTR_ERR(pcdev->base_emma);
                goto out;
        }
@@ -1824,9 +1824,9 @@ static int mx2_camera_probe(struct platform_device *pdev)
        INIT_LIST_HEAD(&pcdev->discard);
        spin_lock_init(&pcdev->lock);
-        pcdev->base_csi = devm_request_and_ioremap(&pdev->dev, res_csi);
+        pcdev->base_csi = devm_ioremap_resource(&pdev->dev, res_csi);
-        if (!pcdev->base_csi) {
+        if (IS_ERR(pcdev->base_csi)) {
-                err = -EADDRNOTAVAIL;
+                err = PTR_ERR(pcdev->base_csi);
                goto exit;
        }
diff --git a/drivers/media/usb/dvb-usb-v2/Kconfig b/drivers/media/usb/dvb-usb-v2/Kconfig
index 834bfecbed73..7a622dbe9b6d 100644
--- a/drivers/media/usb/dvb-usb-v2/Kconfig
+++ b/drivers/media/usb/dvb-usb-v2/Kconfig
@@ -134,7 +134,7 @@ config DVB_USB_MXL111SF
 config DVB_USB_RTL28XXU
        tristate "Realtek RTL28xxU DVB USB support"
-        depends on DVB_USB_V2 && EXPERIMENTAL
+        depends on DVB_USB_V2
        select DVB_RTL2830
        select DVB_RTL2832
        select MEDIA_TUNER_QT1010 if MEDIA_SUBDRV_AUTOSELECT
diff --git a/drivers/media/usb/pvrusb2/Kconfig b/drivers/media/usb/pvrusb2/Kconfig
index 32b11c15bb1a..60a2604e4cb3 100644
--- a/drivers/media/usb/pvrusb2/Kconfig
+++ b/drivers/media/usb/pvrusb2/Kconfig
@@ -17,9 +17,9 @@ config VIDEO_PVRUSB2
          module will be called pvrusb2
 config VIDEO_PVRUSB2_SYSFS
-        bool "pvrusb2 sysfs support (EXPERIMENTAL)"
+        bool "pvrusb2 sysfs support"
        default y
-        depends on VIDEO_PVRUSB2 && SYSFS && EXPERIMENTAL
+        depends on VIDEO_PVRUSB2 && SYSFS
        ---help---
          This option enables the operation of a sysfs based
          interface for query and control of the pvrusb2 driver.
@@ -33,9 +33,9 @@ config VIDEO_PVRUSB2_SYSFS
          Note: This feature is experimental and subject to change.
 config VIDEO_PVRUSB2_DVB
-        bool "pvrusb2 ATSC/DVB support (EXPERIMENTAL)"
+        bool "pvrusb2 ATSC/DVB support"
        default y
-        depends on VIDEO_PVRUSB2 && DVB_CORE && EXPERIMENTAL
+        depends on VIDEO_PVRUSB2 && DVB_CORE
        select DVB_LGDT330X if MEDIA_SUBDRV_AUTOSELECT
        select DVB_S5H1409 if MEDIA_SUBDRV_AUTOSELECT
        select DVB_S5H1411 if MEDIA_SUBDRV_AUTOSELECT
diff --git a/drivers/memory/emif.c b/drivers/memory/emif.c
index 06d31c99e6ac..df0873694858 100644
--- a/drivers/memory/emif.c
+++ b/drivers/memory/emif.c
@@ -10,6 +10,7 @@
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/reboot.h>
 #include <linux/platform_data/emif_plat.h>
@@ -1468,12 +1469,9 @@ static int __init_or_module emif_probe(struct platform_device *pdev)
                goto error;
        }
-        emif->base = devm_request_and_ioremap(emif->dev, res);
+        emif->base = devm_ioremap_resource(emif->dev, res);
-        if (!emif->base) {
+        if (IS_ERR(emif->base))
-                dev_err(emif->dev, "%s: devm_request_and_ioremap() failed\n",
-                        __func__);
                goto error;
-        }
        irq = platform_get_irq(pdev, 0);
        if (irq < 0) {
diff --git a/drivers/memory/tegra20-mc.c b/drivers/memory/tegra20-mc.c
index 186f27d9e5f1..2ca5f2814f4a 100644
--- a/drivers/memory/tegra20-mc.c
+++ b/drivers/memory/tegra20-mc.c
@@ -17,6 +17,7 @@
 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 */
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/ratelimit.h>
@@ -216,9 +217,9 @@ static int tegra20_mc_probe(struct platform_device *pdev)
                res = platform_get_resource(pdev, IORESOURCE_MEM, i);
                if (!res)
                        return -ENODEV;
-                mc->regs[i] = devm_request_and_ioremap(&pdev->dev, res);
+                mc->regs[i] = devm_ioremap_resource(&pdev->dev, res);
-                if (!mc->regs[i])
+                if (IS_ERR(mc->regs[i]))
-                        return -EBUSY;
+                        return PTR_ERR(mc->regs[i]);
        }
        irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
diff --git a/drivers/memory/tegra30-mc.c b/drivers/memory/tegra30-mc.c
index 0b7ab9332a18..0b975986777d 100644
--- a/drivers/memory/tegra30-mc.c
+++ b/drivers/memory/tegra30-mc.c
@@ -17,6 +17,7 @@
 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 */
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/ratelimit.h>
@@ -336,9 +337,9 @@ static int tegra30_mc_probe(struct platform_device *pdev)
                res = platform_get_resource(pdev, IORESOURCE_MEM, i);
                if (!res)
                        return -ENODEV;
-                mc->regs[i] = devm_request_and_ioremap(&pdev->dev, res);
+                mc->regs[i] = devm_ioremap_resource(&pdev->dev, res);
-                if (!mc->regs[i])
+                if (IS_ERR(mc->regs[i]))
-                        return -EBUSY;
+                        return PTR_ERR(mc->regs[i]);
        }
        irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
diff --git a/drivers/memstick/Kconfig b/drivers/memstick/Kconfig
index f0ca41c20323..1314605d791f 100644
--- a/drivers/memstick/Kconfig
+++ b/drivers/memstick/Kconfig
@@ -3,7 +3,7 @@
 #
 menuconfig MEMSTICK
-        tristate "Sony MemoryStick card support (EXPERIMENTAL)"
+        tristate "Sony MemoryStick card support"
        help
          Sony MemoryStick is a proprietary storage/extension card protocol.
diff --git a/drivers/memstick/host/Kconfig b/drivers/memstick/host/Kconfig
index 4f7a17fd1aa7..1b37cf8cd204 100644
--- a/drivers/memstick/host/Kconfig
+++ b/drivers/memstick/host/Kconfig
@@ -5,8 +5,8 @@
 comment "MemoryStick Host Controller Drivers"
 config MEMSTICK_TIFM_MS
-        tristate "TI Flash Media MemoryStick Interface support  (EXPERIMENTAL)"
+        tristate "TI Flash Media MemoryStick Interface support "
-        depends on EXPERIMENTAL && PCI
+        depends on PCI
        select TIFM_CORE
        help
          Say Y here if you want to be able to access MemoryStick cards with
@@ -21,8 +21,8 @@ config MEMSTICK_TIFM_MS
          module will be called tifm_ms.
 config MEMSTICK_JMICRON_38X
-        tristate "JMicron JMB38X MemoryStick interface support (EXPERIMENTAL)"
+        tristate "JMicron JMB38X MemoryStick interface support"
-        depends on EXPERIMENTAL && PCI
+        depends on PCI
        help
          Say Y here if you want to be able to access MemoryStick cards with
@@ -32,8 +32,8 @@ config MEMSTICK_JMICRON_38X
          module will be called jmb38x_ms.
 config MEMSTICK_R592
-        tristate "Ricoh R5C592 MemoryStick interface support (EXPERIMENTAL)"
+        tristate "Ricoh R5C592 MemoryStick interface support"
-        depends on EXPERIMENTAL && PCI
+        depends on PCI
        help
          Say Y here if you want to be able to access MemoryStick cards with
diff --git a/drivers/mfd/intel_msic.c b/drivers/mfd/intel_msic.c
index ab8d0b2739b2..1804331bd52c 100644
--- a/drivers/mfd/intel_msic.c
+++ b/drivers/mfd/intel_msic.c
@@ -9,6 +9,7 @@
 * published by the Free Software Foundation.
 */
+#include <linux/err.h>
 #include <linux/gpio.h>
 #include <linux/io.h>
 #include <linux/module.h>
@@ -424,11 +425,9 @@ static int intel_msic_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        msic->irq_base = devm_request_and_ioremap(&pdev->dev, res);
+        msic->irq_base = devm_ioremap_resource(&pdev->dev, res);
-        if (!msic->irq_base) {
+        if (IS_ERR(msic->irq_base))
-                dev_err(&pdev->dev, "failed to map SRAM memory\n");
+                return PTR_ERR(msic->irq_base);
-                return -ENOMEM;
-        }
        platform_set_drvdata(pdev, msic);
diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c
index bd90dd23242e..c09c28f92055 100644
--- a/drivers/misc/atmel-ssc.c
+++ b/drivers/misc/atmel-ssc.c
@@ -159,11 +159,9 @@ static int ssc_probe(struct platform_device *pdev)
                return -ENXIO;
        }
-        ssc->regs = devm_request_and_ioremap(&pdev->dev, regs);
+        ssc->regs = devm_ioremap_resource(&pdev->dev, regs);
-        if (!ssc->regs) {
+        if (IS_ERR(ssc->regs))
-                dev_dbg(&pdev->dev, "ioremap failed\n");
+                return PTR_ERR(ssc->regs);
-                return -EINVAL;
-        }
        ssc->phybase = regs->start;
diff --git a/drivers/mmc/core/Kconfig b/drivers/mmc/core/Kconfig
index ef103871517f..269d072ef55e 100644
--- a/drivers/mmc/core/Kconfig
+++ b/drivers/mmc/core/Kconfig
@@ -18,8 +18,7 @@ config MMC_UNSAFE_RESUME
          module parameter "removable=0" or "removable=1".
 config MMC_CLKGATE
-        bool "MMC host clock gating (EXPERIMENTAL)"
+        bool "MMC host clock gating"
-        depends on EXPERIMENTAL
        help
          This will attempt to aggressively gate the clock to the MMC card.
          This is done to save power due to gating off the logic and bus
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 8d13c6594520..cc8a8fad455a 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -69,7 +69,7 @@ config MMC_SDHCI_PCI
          If unsure, say N.
 config MMC_RICOH_MMC
-        bool "Ricoh MMC Controller Disabler  (EXPERIMENTAL)"
+        bool "Ricoh MMC Controller Disabler"
        depends on MMC_SDHCI_PCI
        help
          This adds a pci quirk to disable Ricoh MMC Controller. This
@@ -186,9 +186,6 @@ config MMC_SDHCI_S3C
          often referrered to as the HSMMC block in some of the Samsung S3C
          range of SoC.
-          Note, due to the problems with DMA, the DMA support is only
-          available with CONFIG_EXPERIMENTAL is selected.
          If you have a controller with this interface, say Y or M here.
          If unsure, say N.
@@ -233,7 +230,7 @@ config MMC_SDHCI_SPEAR
 config MMC_SDHCI_S3C_DMA
        bool "DMA support on S3C SDHCI"
-        depends on MMC_SDHCI_S3C && EXPERIMENTAL
+        depends on MMC_SDHCI_S3C
        help
          Enable DMA support on the Samsung S3C SDHCI glue. The DMA
          has proved to be problematic if the controller encounters
@@ -330,8 +327,8 @@ config MMC_MXS
          If unsure, say N.
 config MMC_TIFM_SD
-        tristate "TI Flash Media MMC/SD Interface support  (EXPERIMENTAL)"
+        tristate "TI Flash Media MMC/SD Interface support"
-        depends on EXPERIMENTAL && PCI
+        depends on PCI
        select TIFM_CORE
        help
          Say Y here if you want to be able to access MMC/SD cards with
@@ -410,8 +407,7 @@ config MMC_S3C_PIO
          the S3C MCI driver.
 config MMC_S3C_DMA
-        bool "Use DMA transfers only (EXPERIMENTAL)"
+        bool "Use DMA transfers only"
-        depends on EXPERIMENTAL
        help
          Use DMA to transfer data between memory and the hardare.
@@ -420,7 +416,7 @@ config MMC_S3C_DMA
          option is useful.
 config MMC_S3C_PIODMA
-        bool "Support for both PIO and DMA (EXPERIMENTAL)"
+        bool "Support for both PIO and DMA"
        help
          Compile both the PIO and DMA transfer routines into the
          driver and let the platform select at run-time which one
@@ -431,8 +427,8 @@ config MMC_S3C_PIODMA
 endchoice
 config MMC_SDRICOH_CS
-        tristate "MMC/SD driver for Ricoh Bay1Controllers (EXPERIMENTAL)"
+        tristate "MMC/SD driver for Ricoh Bay1Controllers"
-        depends on EXPERIMENTAL && PCI && PCMCIA
+        depends on PCI && PCMCIA
        help
          Say Y here if your Notebook reports a Ricoh Bay1Controller PCMCIA
          card whenever you insert a MMC or SD card into the card slot.
diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c
index 5e1fb1d2c422..41c27b74b003 100644
--- a/drivers/mmc/host/dw_mmc-pltfm.c
+++ b/drivers/mmc/host/dw_mmc-pltfm.c
@@ -10,6 +10,7 @@
 * (at your option) any later version.
 */
+#include <linux/err.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/io.h>
@@ -46,9 +47,9 @@ int dw_mci_pltfm_register(struct platform_device *pdev,
        host->dev = &pdev->dev;
        host->irq_flags = 0;
        host->pdata = pdev->dev.platform_data;
-        host->regs = devm_request_and_ioremap(&pdev->dev, regs);
+        host->regs = devm_ioremap_resource(&pdev->dev, regs);
-        if (!host->regs)
+        if (IS_ERR(host->regs))
-                return -ENOMEM;
+                return PTR_ERR(host->regs);
        if (drv_data && drv_data->init) {
                ret = drv_data->init(host);
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 206fe499ded5..5b665551a6f3 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -614,9 +614,9 @@ static int mxs_mmc_probe(struct platform_device *pdev)
        host = mmc_priv(mmc);
        ssp = &host->ssp;
        ssp->dev = &pdev->dev;
-        ssp->base = devm_request_and_ioremap(&pdev->dev, iores);
+        ssp->base = devm_ioremap_resource(&pdev->dev, iores);
-        if (!ssp->base) {
+        if (IS_ERR(ssp->base)) {
-                ret = -EADDRNOTAVAIL;
+                ret = PTR_ERR(ssp->base);
                goto out_mmc_free;
        }
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 82a8de148a8f..a0c621421ee8 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -651,10 +651,9 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
 #endif
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        host->ioaddr = devm_request_and_ioremap(&pdev->dev, res);
+        host->ioaddr = devm_ioremap_resource(&pdev->dev, res);
-        if (!host->ioaddr) {
+        if (IS_ERR(host->ioaddr)) {
-                dev_err(dev, "failed to map registers\n");
+                ret = PTR_ERR(host->ioaddr);
-                ret = -ENXIO;
                goto err_req_regs;
        }
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index 73fcbbeb78d0..03f2eb5627ec 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -291,7 +291,7 @@ config SSFDC
 config SM_FTL
        tristate "SmartMedia/xD new translation layer"
-        depends on EXPERIMENTAL && BLOCK
+        depends on BLOCK
        select MTD_BLKDEVS
        select MTD_NAND_ECC
        help
diff --git a/drivers/mtd/chips/Kconfig b/drivers/mtd/chips/Kconfig
index e469b01d40d2..c219e3d098d9 100644
--- a/drivers/mtd/chips/Kconfig
+++ b/drivers/mtd/chips/Kconfig
@@ -225,7 +225,7 @@ config MTD_ABSENT
 config MTD_XIP
        bool "XIP aware MTD support"
-        depends on !SMP && (MTD_CFI_INTELEXT || MTD_CFI_AMDSTD) && EXPERIMENTAL && ARCH_MTD_XIP
+        depends on !SMP && (MTD_CFI_INTELEXT || MTD_CFI_AMDSTD) && ARCH_MTD_XIP
        default y if XIP_KERNEL
        help
          This allows MTD support to work with flash memory which is also
diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
index 46dcb54c32ec..12311f506ca1 100644
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -52,7 +52,7 @@ config MTD_MS02NV
 config MTD_DATAFLASH
        tristate "Support for AT45xxx DataFlash"
-        depends on SPI_MASTER && EXPERIMENTAL
+        depends on SPI_MASTER
        help
          This enables access to AT45xxx DataFlash chips, using SPI.
          Sometimes DataFlash chips are packaged inside MMC-format
@@ -81,7 +81,7 @@ config MTD_DATAFLASH_OTP
 config MTD_M25P80
        tristate "Support most SPI Flash chips (AT26DF, M25P, W25X, ...)"
-        depends on SPI_MASTER && EXPERIMENTAL
+        depends on SPI_MASTER
        help
          This enables access to most modern SPI flash chips, used for
          program and data storage.   Series supported include Atmel AT26DF,
diff --git a/drivers/mtd/devices/spear_smi.c b/drivers/mtd/devices/spear_smi.c
index 2aabd96bf0ff..8a82b8bc21e1 100644
--- a/drivers/mtd/devices/spear_smi.c
+++ b/drivers/mtd/devices/spear_smi.c
@@ -949,10 +949,9 @@ static int spear_smi_probe(struct platform_device *pdev)
        smi_base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        dev->io_base = devm_request_and_ioremap(&pdev->dev, smi_base);
+        dev->io_base = devm_ioremap_resource(&pdev->dev, smi_base);
-        if (!dev->io_base) {
+        if (IS_ERR(dev->io_base)) {
-                ret = -EIO;
+                ret = PTR_ERR(dev->io_base);
-                dev_err(&pdev->dev, "devm_request_and_ioremap fail\n");
                goto err;
        }
diff --git a/drivers/mtd/maps/autcpu12-nvram.c b/drivers/mtd/maps/autcpu12-nvram.c
index a2dc2ae4b24e..c3525d2a2fa8 100644
--- a/drivers/mtd/maps/autcpu12-nvram.c
+++ b/drivers/mtd/maps/autcpu12-nvram.c
@@ -16,6 +16,7 @@
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
+#include <linux/err.h>
 #include <linux/sizes.h>
 #include <linux/types.h>
@@ -55,12 +56,10 @@ static int autcpu12_nvram_probe(struct platform_device *pdev)
        priv->map.bankwidth     = 4;
        priv->map.phys          = res->start;
        priv->map.size          = resource_size(res);
-        priv->map.virt          = devm_request_and_ioremap(&pdev->dev, res);
+        priv->map.virt = devm_ioremap_resource(&pdev->dev, res);
        strcpy((char *)priv->map.name, res->name);
-        if (!priv->map.virt) {
+        if (IS_ERR(priv->map.virt))
-                dev_err(&pdev->dev, "failed to remap mem resource\n");
+                return PTR_ERR(priv->map.virt);
-                return -EBUSY;
-        }
        simple_map_init(&priv->map);
diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c
index 3c3c791eb96a..d1da6ede3845 100644
--- a/drivers/mtd/maps/lantiq-flash.c
+++ b/drivers/mtd/maps/lantiq-flash.c
@@ -7,6 +7,7 @@
 *  Copyright (C) 2010 John Crispin <blogic@openwrt.org>
 */
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
@@ -136,10 +137,9 @@ ltq_mtd_probe(struct platform_device *pdev)
        ltq_mtd->map = kzalloc(sizeof(struct map_info), GFP_KERNEL);
        ltq_mtd->map->phys = ltq_mtd->res->start;
        ltq_mtd->map->size = resource_size(ltq_mtd->res);
-        ltq_mtd->map->virt = devm_request_and_ioremap(&pdev->dev, ltq_mtd->res);
+        ltq_mtd->map->virt = devm_ioremap_resource(&pdev->dev, ltq_mtd->res);
-        if (!ltq_mtd->map->virt) {
+        if (IS_ERR(ltq_mtd->map->virt)) {
-                dev_err(&pdev->dev, "failed to remap mem resource\n");
+                err = PTR_ERR(ltq_mtd->map->virt);
-                err = -EBUSY;
                goto err_out;
        }
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 5819eb575210..81bf5e52601e 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -260,8 +260,7 @@ config MTD_NAND_S3C2410_CLKSTOP
          approximately 5mA of power when there is nothing happening.
 config MTD_NAND_DISKONCHIP
-        tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
+        tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation)"
-        depends on EXPERIMENTAL
        depends on HAS_IOMEM
        select REED_SOLOMON
        select REED_SOLOMON_DEC16
@@ -331,8 +330,8 @@ config MTD_NAND_DISKONCHIP_BBTWRITE
          parameter "inftl_bbt_write=1".
 config MTD_NAND_DOCG4
-        tristate "Support for DiskOnChip G4 (EXPERIMENTAL)"
+        tristate "Support for DiskOnChip G4"
-        depends on EXPERIMENTAL && HAS_IOMEM
+        depends on HAS_IOMEM
        select BCH
        select BITREVERSE
        help
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index 67e62d3d495c..c543cc09f193 100644
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -937,42 +937,35 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
        if (!res)
                return -EINVAL;
-        host->data_va = devm_request_and_ioremap(&pdev->dev, res);
+        host->data_va = devm_ioremap_resource(&pdev->dev, res);
-        if (!host->data_va) {
+        if (IS_ERR(host->data_va))
-                dev_err(&pdev->dev, "data ioremap failed\n");
+                return PTR_ERR(host->data_va);
-                return -ENOMEM;
+        
-        }
        host->data_pa = (dma_addr_t)res->start;
        res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_addr");
        if (!res)
                return -EINVAL;
-        host->addr_va = devm_request_and_ioremap(&pdev->dev, res);
+        host->addr_va = devm_ioremap_resource(&pdev->dev, res);
-        if (!host->addr_va) {
+        if (IS_ERR(host->addr_va))
-                dev_err(&pdev->dev, "ale ioremap failed\n");
+                return PTR_ERR(host->addr_va);
-                return -ENOMEM;
-        }
        res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_cmd");
        if (!res)
                return -EINVAL;
-        host->cmd_va = devm_request_and_ioremap(&pdev->dev, res);
+        host->cmd_va = devm_ioremap_resource(&pdev->dev, res);
-        if (!host->cmd_va) {
+        if (IS_ERR(host->cmd_va))
-                dev_err(&pdev->dev, "ale ioremap failed\n");
+                return PTR_ERR(host->cmd_va);
-                return -ENOMEM;
-        }
        res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fsmc_regs");
        if (!res)
                return -EINVAL;
-        host->regs_va = devm_request_and_ioremap(&pdev->dev, res);
+        host->regs_va = devm_ioremap_resource(&pdev->dev, res);
-        if (!host->regs_va) {
+        if (IS_ERR(host->regs_va))
-                dev_err(&pdev->dev, "regs ioremap failed\n");
+                return PTR_ERR(host->regs_va);
-                return -ENOMEM;
-        }
        host->clk = clk_get(&pdev->dev, NULL);
        if (IS_ERR(host->clk)) {
diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c
index f182befa7360..0ca22ae9135c 100644
--- a/drivers/mtd/nand/lpc32xx_mlc.c
+++ b/drivers/mtd/nand/lpc32xx_mlc.c
@@ -677,11 +677,10 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
                return -ENXIO;
        }
-        host->io_base = devm_request_and_ioremap(&pdev->dev, rc);
+        host->io_base = devm_ioremap_resource(&pdev->dev, rc);
-        if (host->io_base == NULL) {
+        if (IS_ERR(host->io_base))
-                dev_err(&pdev->dev, "ioremap failed\n");
+                return PTR_ERR(host->io_base);
-                return -EIO;
+        
-        }
        host->io_base_phy = rc->start;
        mtd = &host->mtd;
diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c
index 030b78c62895..be94ed5abefb 100644
--- a/drivers/mtd/nand/lpc32xx_slc.c
+++ b/drivers/mtd/nand/lpc32xx_slc.c
@@ -778,11 +778,9 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
        }
        host->io_base_dma = rc->start;
-        host->io_base = devm_request_and_ioremap(&pdev->dev, rc);
+        host->io_base = devm_ioremap_resource(&pdev->dev, rc);
-        if (host->io_base == NULL) {
+        if (IS_ERR(host->io_base))
-                dev_err(&pdev->dev, "ioremap failed\n");
+                return PTR_ERR(host->io_base);
-                return -ENOMEM;
-        }
        if (pdev->dev.of_node)
                host->ncfg = lpc32xx_parse_dt(&pdev->dev);
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 45204e41a028..60ac5b98b718 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -1437,9 +1437,9 @@ static int mxcnd_probe(struct platform_device *pdev)
                res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
                if (!res)
                        return -ENODEV;
-                host->regs_ip = devm_request_and_ioremap(&pdev->dev, res);
+                host->regs_ip = devm_ioremap_resource(&pdev->dev, res);
-                if (!host->regs_ip)
+                if (IS_ERR(host->regs_ip))
-                        return -ENOMEM;
+                        return PTR_ERR(host->regs_ip);
                res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
        } else {
@@ -1449,9 +1449,9 @@ static int mxcnd_probe(struct platform_device *pdev)
        if (!res)
                return -ENODEV;
-        host->base = devm_request_and_ioremap(&pdev->dev, res);
+        host->base = devm_ioremap_resource(&pdev->dev, res);
-        if (!host->base)
+        if (IS_ERR(host->base))
-                return -ENOMEM;
+                return PTR_ERR(host->base);
        host->main_area0 = host->base;
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index df954b4dcba2..d65afd23e171 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -952,10 +952,9 @@ static int s3c24xx_nand_probe(struct platform_device *pdev)
        info->platform  = plat;
        info->cpu_type  = cpu_type;
-        info->regs      = devm_request_and_ioremap(&pdev->dev, res);
+        info->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (info->regs == NULL) {
+        if (IS_ERR(info->regs)) {
-                dev_err(&pdev->dev, "cannot reserve register region\n");
+                err = PTR_ERR(info->regs);
-                err = -EIO;
                goto exit_error;
        }
diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c
index e3d7266e256f..e1e8748aa47b 100644
--- a/drivers/mtd/nand/txx9ndfmc.c
+++ b/drivers/mtd/nand/txx9ndfmc.c
@@ -9,6 +9,7 @@
 * (C) Copyright TOSHIBA CORPORATION 2004-2007
 * All Rights Reserved.
 */
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/module.h>
@@ -286,9 +287,9 @@ static int __init txx9ndfmc_probe(struct platform_device *dev)
        drvdata = devm_kzalloc(&dev->dev, sizeof(*drvdata), GFP_KERNEL);
        if (!drvdata)
                return -ENOMEM;
-        drvdata->base = devm_request_and_ioremap(&dev->dev, res);
+        drvdata->base = devm_ioremap_resource(&dev->dev, res);
-        if (!drvdata->base)
+        if (IS_ERR(drvdata->base))
-                return -EBUSY;
+                return PTR_ERR(drvdata->base);
        hold = plat->hold ?: 20; /* tDH */
        spw = plat->spw ?: 90; /* max(tREADID, tWP, tRP) */
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 6a70184c3f23..2334190ff8d2 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -123,8 +123,7 @@ config IFB
 source "drivers/net/team/Kconfig"
 config MACVLAN
-        tristate "MAC-VLAN support (EXPERIMENTAL)"
+        tristate "MAC-VLAN support"
-        depends on EXPERIMENTAL
        ---help---
          This allows one to create virtual interfaces that map packets to
          or from specific MAC addresses to a particular interface.
@@ -138,7 +137,7 @@ config MACVLAN
          will be called macvlan.
 config MACVTAP
-        tristate "MAC-VLAN based tap driver (EXPERIMENTAL)"
+        tristate "MAC-VLAN based tap driver"
        depends on MACVLAN
        help
          This adds a specialized tap character device driver that is based
@@ -234,8 +233,8 @@ config VETH
          versa.
 config VIRTIO_NET
-        tristate "Virtio network driver (EXPERIMENTAL)"
+        tristate "Virtio network driver"
-        depends on EXPERIMENTAL && VIRTIO
+        depends on VIRTIO
        ---help---
          This is the virtual network driver for virtio.  It can be used with
          lguest or QEMU based VMMs (like KVM or Xen).  Say Y or M.
diff --git a/drivers/net/ethernet/8390/Kconfig b/drivers/net/ethernet/8390/Kconfig
index 1b78ca7a9786..a5f91e1e8fe3 100644
--- a/drivers/net/ethernet/8390/Kconfig
+++ b/drivers/net/ethernet/8390/Kconfig
@@ -5,10 +5,7 @@
 config NET_VENDOR_8390
        bool "National Semi-conductor 8390 devices"
        default y
-        depends on NET_VENDOR_NATSEMI && (AMIGA_PCMCIA || PCI || SUPERH || \
+        depends on NET_VENDOR_NATSEMI
-                   ISA || MAC || M32R || MACH_TX49XX || \
-                   H8300 || ARM || MIPS || ZORRO || PCMCIA || \
-                   EXPERIMENTAL)
        ---help---
          If you have a network (Ethernet) card belonging to this class, say Y
          and read the Ethernet-HOWTO, available from
diff --git a/drivers/net/ethernet/atheros/Kconfig b/drivers/net/ethernet/atheros/Kconfig
index 1ed886d421f8..36d6abd1cfff 100644
--- a/drivers/net/ethernet/atheros/Kconfig
+++ b/drivers/net/ethernet/atheros/Kconfig
@@ -44,8 +44,8 @@ config ATL1
          will be called atl1.
 config ATL1E
-        tristate "Atheros L1E Gigabit Ethernet support (EXPERIMENTAL)"
+        tristate "Atheros L1E Gigabit Ethernet support"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        select CRC32
        select NET_CORE
        select MII
@@ -56,8 +56,8 @@ config ATL1E
          will be called atl1e.
 config ATL1C
-        tristate "Atheros L1C Gigabit Ethernet support (EXPERIMENTAL)"
+        tristate "Atheros L1C Gigabit Ethernet support"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        select CRC32
        select NET_CORE
        select MII
diff --git a/drivers/net/ethernet/dec/tulip/Kconfig b/drivers/net/ethernet/dec/tulip/Kconfig
index 1203be0436e2..0c37fb2cc867 100644
--- a/drivers/net/ethernet/dec/tulip/Kconfig
+++ b/drivers/net/ethernet/dec/tulip/Kconfig
@@ -57,8 +57,8 @@ config TULIP
          be called tulip.
 config TULIP_MWI
-        bool "New bus configuration (EXPERIMENTAL)"
+        bool "New bus configuration"
-        depends on TULIP && EXPERIMENTAL
+        depends on TULIP
        ---help---
          This configures your Tulip card specifically for the card and
          system cache line size type you are using.
diff --git a/drivers/net/ethernet/fujitsu/Kconfig b/drivers/net/ethernet/fujitsu/Kconfig
index c6a87625898a..6231bc02b964 100644
--- a/drivers/net/ethernet/fujitsu/Kconfig
+++ b/drivers/net/ethernet/fujitsu/Kconfig
@@ -5,7 +5,7 @@
 config NET_VENDOR_FUJITSU
        bool "Fujitsu devices"
        default y
-        depends on ISA || PCMCIA || (ISA && EXPERIMENTAL)
+        depends on ISA || PCMCIA
        ---help---
          If you have a network (Ethernet) card belonging to this class, say Y
          and read the Ethernet-HOWTO, available from
diff --git a/drivers/net/ethernet/i825xx/Kconfig b/drivers/net/ethernet/i825xx/Kconfig
index 955d929cd00f..9521e68aa3b3 100644
--- a/drivers/net/ethernet/i825xx/Kconfig
+++ b/drivers/net/ethernet/i825xx/Kconfig
@@ -5,9 +5,7 @@
 config NET_VENDOR_I825XX
        bool "Intel (82586/82593/82596) devices"
        default y
-        depends on NET_VENDOR_INTEL && (ISA || ISA_DMA_API || ARM || \
+        depends on NET_VENDOR_INTEL
-                   ARCH_ACORN || SNI_RM || SUN3 || \
-                   GSC || BVME6000 || MVME16x || EXPERIMENTAL)
        ---help---
          If you have a network (Ethernet) card belonging to this class, say Y
          and read the Ethernet-HOWTO, available from
diff --git a/drivers/net/ethernet/icplus/Kconfig b/drivers/net/ethernet/icplus/Kconfig
index 3aff81d7989f..5119ef18953b 100644
--- a/drivers/net/ethernet/icplus/Kconfig
+++ b/drivers/net/ethernet/icplus/Kconfig
@@ -4,7 +4,7 @@
 config IP1000
        tristate "IP1000 Gigabit Ethernet support"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        select NET_CORE
        select MII
        ---help---
diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig
index 3d5f6d463757..05f7264c51f7 100644
--- a/drivers/net/ethernet/intel/Kconfig
+++ b/drivers/net/ethernet/intel/Kconfig
@@ -5,11 +5,6 @@
 config NET_VENDOR_INTEL
        bool "Intel devices"
        default y
-        depends on PCI || PCI_MSI || ISA || ISA_DMA_API || ARM || \
-                   ARCH_ACORN || SNI_RM || SUN3 || \
-                   GSC || BVME6000 || MVME16x || \
-                   (ARM && ARCH_IXP4XX && IXP4XX_NPE && IXP4XX_QMGR) || \
-                   EXPERIMENTAL
        ---help---
          If you have a network (Ethernet) card belonging to this class, say Y
          and read the Ethernet-HOWTO, available from
diff --git a/drivers/net/ethernet/microchip/Kconfig b/drivers/net/ethernet/microchip/Kconfig
index 8163fd0f453f..afaf0c07f37f 100644
--- a/drivers/net/ethernet/microchip/Kconfig
+++ b/drivers/net/ethernet/microchip/Kconfig
@@ -5,7 +5,7 @@
 config NET_VENDOR_MICROCHIP
        bool "Microchip devices"
        default y
-        depends on SPI && EXPERIMENTAL
+        depends on SPI
        ---help---
          If you have a network (Ethernet) card belonging to this class, say Y
          and read the Ethernet-HOWTO, available from
@@ -20,7 +20,7 @@ if NET_VENDOR_MICROCHIP
 config ENC28J60
        tristate "ENC28J60 support"
-        depends on SPI && EXPERIMENTAL
+        depends on SPI
        select CRC32
        ---help---
          Support for the Microchip EN28J60 ethernet chip.
diff --git a/drivers/net/ethernet/natsemi/Kconfig b/drivers/net/ethernet/natsemi/Kconfig
index f157334579fd..a100860d45e6 100644
--- a/drivers/net/ethernet/natsemi/Kconfig
+++ b/drivers/net/ethernet/natsemi/Kconfig
@@ -5,9 +5,6 @@
 config NET_VENDOR_NATSEMI
        bool "National Semi-conductor devices"
        default y
-        depends on AMIGA_PCMCIA || ARM || EISA || EXPERIMENTAL || H8300 || \
-                   ISA || M32R || MAC || MACH_JAZZ || MACH_TX49XX || MIPS || \
-                   PCI || PCMCIA || SUPERH || XTENSA_PLATFORM_XT2000 || ZORRO
        ---help---
          If you have a network (Ethernet) card belonging to this class, say Y
          and read the Ethernet-HOWTO, available from
diff --git a/drivers/net/ethernet/packetengines/Kconfig b/drivers/net/ethernet/packetengines/Kconfig
index 8f29feb35548..cbbeca3f8c5c 100644
--- a/drivers/net/ethernet/packetengines/Kconfig
+++ b/drivers/net/ethernet/packetengines/Kconfig
@@ -32,8 +32,8 @@ config HAMACHI
          called hamachi.
 config YELLOWFIN
-        tristate "Packet Engines Yellowfin Gigabit-NIC support (EXPERIMENTAL)"
+        tristate "Packet Engines Yellowfin Gigabit-NIC support"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        select CRC32
        ---help---
          Say Y here if you have a Packet Engines G-NIC PCI Gigabit Ethernet
diff --git a/drivers/net/ethernet/realtek/Kconfig b/drivers/net/ethernet/realtek/Kconfig
index 5821966f9f28..783fa8b5cde7 100644
--- a/drivers/net/ethernet/realtek/Kconfig
+++ b/drivers/net/ethernet/realtek/Kconfig
@@ -34,8 +34,8 @@ config ATP
          will be called atp.
 config 8139CP
-        tristate "RealTek RTL-8139 C+ PCI Fast Ethernet Adapter support (EXPERIMENTAL)"
+        tristate "RealTek RTL-8139 C+ PCI Fast Ethernet Adapter support"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        select CRC32
        select NET_CORE
        select MII
diff --git a/drivers/net/ethernet/seeq/Kconfig b/drivers/net/ethernet/seeq/Kconfig
index a71e1ec068ed..11f168e46ebe 100644
--- a/drivers/net/ethernet/seeq/Kconfig
+++ b/drivers/net/ethernet/seeq/Kconfig
@@ -6,7 +6,6 @@ config NET_VENDOR_SEEQ
        bool "SEEQ devices"
        default y
        depends on HAS_IOMEM
-        depends on (ARM && ARCH_ACORN) || SGI_HAS_SEEQ || EXPERIMENTAL
        ---help---
          If you have a network (Ethernet) card belonging to this class, say Y
          and read the Ethernet-HOWTO, available from
diff --git a/drivers/net/ethernet/silan/Kconfig b/drivers/net/ethernet/silan/Kconfig
index ae1ce170864d..3409b3f97a1b 100644
--- a/drivers/net/ethernet/silan/Kconfig
+++ b/drivers/net/ethernet/silan/Kconfig
@@ -5,7 +5,7 @@
 config NET_VENDOR_SILAN
        bool "Silan devices"
        default y
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        ---help---
          If you have a network (Ethernet) card belonging to this class, say Y
          and read the Ethernet-HOWTO, available from
@@ -19,8 +19,8 @@ config NET_VENDOR_SILAN
 if NET_VENDOR_SILAN
 config SC92031
-        tristate "Silan SC92031 PCI Fast Ethernet Adapter driver (EXPERIMENTAL)"
+        tristate "Silan SC92031 PCI Fast Ethernet Adapter driver"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        select CRC32
        ---help---
          This is a driver for the Fast Ethernet PCI network cards based on
diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
index 1164930a40a5..c0ea838c78d1 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
+++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
@@ -26,8 +26,8 @@ config STMMAC_PLATFORM
          If unsure, say N.
 config STMMAC_PCI
-        bool "STMMAC PCI bus support (EXPERIMENTAL)"
+        bool "STMMAC PCI bus support"
-        depends on STMMAC_ETH && PCI && EXPERIMENTAL
+        depends on STMMAC_ETH && PCI
        ---help---
          This is to select the Synopsys DWMAC available on PCI devices,
          if you have a controller with this interface, say Y or M here.
diff --git a/drivers/net/ethernet/sun/Kconfig b/drivers/net/ethernet/sun/Kconfig
index 57bfd8599679..ae3a3557293f 100644
--- a/drivers/net/ethernet/sun/Kconfig
+++ b/drivers/net/ethernet/sun/Kconfig
@@ -32,8 +32,8 @@ config HAPPYMEAL
          will be called sunhme.
 config SUNBMAC
-        tristate "Sun BigMAC 10/100baseT support (EXPERIMENTAL)"
+        tristate "Sun BigMAC 10/100baseT support"
-        depends on SBUS && EXPERIMENTAL
+        depends on SBUS
        select CRC32
        ---help---
          This driver supports the "be" interface available as an Sbus option.
diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
index 4426151d4ac9..de71b1ec4625 100644
--- a/drivers/net/ethernet/ti/Kconfig
+++ b/drivers/net/ethernet/ti/Kconfig
@@ -88,8 +88,8 @@ config TLAN
          Please email feedback to <torben.mathiasen@compaq.com>.
 config CPMAC
-        tristate "TI AR7 CPMAC Ethernet support (EXPERIMENTAL)"
+        tristate "TI AR7 CPMAC Ethernet support"
-        depends on EXPERIMENTAL && AR7
+        depends on AR7
        select PHYLIB
        ---help---
          TI AR7 CPMAC Ethernet support
diff --git a/drivers/net/hippi/Kconfig b/drivers/net/hippi/Kconfig
index 95eb34fdbba7..f71515dc5beb 100644
--- a/drivers/net/hippi/Kconfig
+++ b/drivers/net/hippi/Kconfig
@@ -3,8 +3,8 @@
 #
 config HIPPI
-        bool "HIPPI driver support (EXPERIMENTAL)"
+        bool "HIPPI driver support"
-        depends on EXPERIMENTAL && INET && PCI
+        depends on INET && PCI
        ---help---
          HIgh Performance Parallel Interface (HIPPI) is a 800Mbit/sec and
          1600Mbit/sec dual-simplex switched or point-to-point network. HIPPI
@@ -18,7 +18,7 @@ config HIPPI
 if HIPPI
 config ROADRUNNER
-        tristate "Essential RoadRunner HIPPI PCI adapter support (EXPERIMENTAL)"
+        tristate "Essential RoadRunner HIPPI PCI adapter support"
        depends on PCI
        ---help---
          Say Y here if this is your PCI HIPPI network card.
@@ -27,7 +27,7 @@ config ROADRUNNER
          will be called rrunner.  If unsure, say N.
 config ROADRUNNER_LARGE_RINGS
-        bool "Use large TX/RX rings (EXPERIMENTAL)"
+        bool "Use large TX/RX rings"
        depends on ROADRUNNER
        ---help---
          If you say Y here, the RoadRunner driver will preallocate up to 2 MB
diff --git a/drivers/net/irda/Kconfig b/drivers/net/irda/Kconfig
index 595205406d73..59e9d9e1fd0f 100644
--- a/drivers/net/irda/Kconfig
+++ b/drivers/net/irda/Kconfig
@@ -140,7 +140,7 @@ config LITELINK_DONGLE
 config MA600_DONGLE
        tristate "Mobile Action MA600 dongle"
-        depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
+        depends on IRTTY_SIR && DONGLE && IRDA
        help
          Say Y here if you want to build support for the Mobile Action MA600
          dongle.  To compile it as a module, choose M here. The MA600 dongle
@@ -153,7 +153,7 @@ config MA600_DONGLE
 config GIRBIL_DONGLE
        tristate "Greenwich GIrBIL dongle"
-        depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
+        depends on IRTTY_SIR && DONGLE && IRDA
        help
          Say Y here if you want to build support for the Greenwich GIrBIL
          dongle.  If you want to compile it as a module, choose M here.
@@ -164,7 +164,7 @@ config GIRBIL_DONGLE
 config MCP2120_DONGLE
        tristate "Microchip MCP2120"
-        depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
+        depends on IRTTY_SIR && DONGLE && IRDA
        help
          Say Y here if you want to build support for the Microchip MCP2120
          dongle.  If you want to compile it as a module, choose M here.
@@ -178,7 +178,7 @@ config MCP2120_DONGLE
 config OLD_BELKIN_DONGLE
        tristate "Old Belkin dongle"
-        depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
+        depends on IRTTY_SIR && DONGLE && IRDA
        help
          Say Y here if you want to build support for the Adaptec Airport 1000
          and 2000 dongles.  If you want to compile it as a module, choose
@@ -187,7 +187,7 @@ config OLD_BELKIN_DONGLE
 config ACT200L_DONGLE
        tristate "ACTiSYS IR-200L dongle"
-        depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
+        depends on IRTTY_SIR && DONGLE && IRDA
        help
          Say Y here if you want to build support for the ACTiSYS IR-200L
          dongle. If you want to compile it as a module, choose M here.
@@ -198,7 +198,7 @@ config ACT200L_DONGLE
 config KINGSUN_DONGLE
        tristate "KingSun/DonShine DS-620 IrDA-USB dongle"
-        depends on IRDA && USB && EXPERIMENTAL
+        depends on IRDA && USB
        help
          Say Y or M here if you want to build support for the KingSun/DonShine
          DS-620 IrDA-USB bridge device driver.
@@ -212,14 +212,14 @@ config KINGSUN_DONGLE
 config EP7211_DONGLE
        tristate "Cirrus Logic clps711x I/R support"
-        depends on IRTTY_SIR && ARCH_CLPS711X && IRDA && EXPERIMENTAL
+        depends on IRTTY_SIR && ARCH_CLPS711X && IRDA
        help
          Say Y here if you want to build support for the Cirrus logic
          EP7211 chipset's infrared module.
 config KSDAZZLE_DONGLE
-        tristate "KingSun Dazzle IrDA-USB dongle (EXPERIMENTAL)"
+        tristate "KingSun Dazzle IrDA-USB dongle"
-        depends on IRDA && USB && EXPERIMENTAL
+        depends on IRDA && USB
        help
          Say Y or M here if you want to build support for the KingSun Dazzle
          IrDA-USB bridge device driver.
@@ -232,8 +232,8 @@ config KSDAZZLE_DONGLE
          ksdazzle-sir.
 config KS959_DONGLE
-        tristate "KingSun KS-959 IrDA-USB dongle (EXPERIMENTAL)"
+        tristate "KingSun KS-959 IrDA-USB dongle"
-        depends on IRDA && USB && EXPERIMENTAL
+        depends on IRDA && USB
        help
          Say Y or M here if you want to build support for the KingSun KS-959
          IrDA-USB bridge device driver.
@@ -264,8 +264,8 @@ config USB_IRDA
          you will need both USB and IrDA support in your kernel...
 config SIGMATEL_FIR
-        tristate "SigmaTel STIr4200 bridge (EXPERIMENTAL)"
+        tristate "SigmaTel STIr4200 bridge"
-        depends on IRDA && USB && EXPERIMENTAL
+        depends on IRDA && USB
        select CRC32
        ---help---
          Say Y here if you want to build support for the SigmaTel STIr4200
@@ -331,8 +331,8 @@ config SMC_IRCC_FIR
          smsc-ircc2.o.
 config ALI_FIR
-        tristate "ALi M5123 FIR (EXPERIMENTAL)"
+        tristate "ALi M5123 FIR"
-        depends on EXPERIMENTAL && IRDA && ISA_DMA_API
+        depends on IRDA && ISA_DMA_API
        help
          Say Y here if you want to build support for the ALi M5123 FIR
          Controller.  The ALi M5123 FIR Controller is embedded in ALi M1543C,
@@ -343,8 +343,8 @@ config ALI_FIR
          ali-ircc.
 config VLSI_FIR
-        tristate "VLSI 82C147 SIR/MIR/FIR (EXPERIMENTAL)"
+        tristate "VLSI 82C147 SIR/MIR/FIR"
-        depends on EXPERIMENTAL && IRDA && PCI
+        depends on IRDA && PCI
        help
          Say Y here if you want to build support for the VLSI 82C147
          PCI-IrDA Controller. This controller is used by the HP OmniBook 800
@@ -387,7 +387,7 @@ config PXA_FICP
 config MCS_FIR
        tristate "MosChip MCS7780 IrDA-USB dongle"
-        depends on IRDA && USB && EXPERIMENTAL
+        depends on IRDA && USB
        select CRC32
        help
          Say Y or M here if you want to build support for the MosChip
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 044b5326459f..dc920974204e 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -95,7 +95,7 @@ static struct class mdio_bus_class = {
 #if IS_ENABLED(CONFIG_OF_MDIO)
 /* Helper function for of_mdio_find_bus */
-static int of_mdio_bus_match(struct device *dev, void *mdio_bus_np)
+static int of_mdio_bus_match(struct device *dev, const void *mdio_bus_np)
 {
        return dev->of_node == mdio_bus_np;
 }
diff --git a/drivers/net/ppp/Kconfig b/drivers/net/ppp/Kconfig
index 872df3ef07a6..278dea0c4c98 100644
--- a/drivers/net/ppp/Kconfig
+++ b/drivers/net/ppp/Kconfig
@@ -82,8 +82,8 @@ config PPP_FILTER
          If unsure, say N.
 config PPP_MPPE
-        tristate "PPP MPPE compression (encryption) (EXPERIMENTAL)"
+        tristate "PPP MPPE compression (encryption)"
-        depends on PPP && EXPERIMENTAL
+        depends on PPP
        select CRYPTO
        select CRYPTO_SHA1
        select CRYPTO_ARC4
@@ -96,8 +96,8 @@ config PPP_MPPE
          configuring PPTP clients and servers to utilize this method.
 config PPP_MULTILINK
-        bool "PPP multilink support (EXPERIMENTAL)"
+        bool "PPP multilink support"
-        depends on PPP && EXPERIMENTAL
+        depends on PPP
        ---help---
          PPP multilink is a protocol (defined in RFC 1990) which allows you
          to combine several (logical or physical) lines into one logical PPP
@@ -118,8 +118,8 @@ config PPPOATM
          changes its encapsulation unilaterally.
 config PPPOE
-        tristate "PPP over Ethernet (EXPERIMENTAL)"
+        tristate "PPP over Ethernet"
-        depends on EXPERIMENTAL && PPP
+        depends on PPP
        ---help---
          Support for PPP over Ethernet.
@@ -130,8 +130,8 @@ config PPPOE
          the heading "Kernel mode PPPoE").
 config PPTP
-        tristate "PPP over IPv4 (PPTP) (EXPERIMENTAL)"
+        tristate "PPP over IPv4 (PPTP)"
-        depends on EXPERIMENTAL && PPP && NET_IPGRE_DEMUX
+        depends on PPP && NET_IPGRE_DEMUX
        ---help---
          Support for PPP over IPv4.(Point-to-Point Tunneling Protocol)
@@ -141,8 +141,8 @@ config PPTP
          utilize this module.
 config PPPOL2TP
-        tristate "PPP over L2TP (EXPERIMENTAL)"
+        tristate "PPP over L2TP"
-        depends on EXPERIMENTAL && L2TP && PPP
+        depends on L2TP && PPP
        ---help---
          Support for PPP-over-L2TP socket family. L2TP is a protocol
          used by ISPs and enterprises to tunnel PPP traffic over UDP
diff --git a/drivers/net/team/Kconfig b/drivers/net/team/Kconfig
index 6b08bd419fba..c3011af68e91 100644
--- a/drivers/net/team/Kconfig
+++ b/drivers/net/team/Kconfig
@@ -1,6 +1,5 @@
 menuconfig NET_TEAM
-        tristate "Ethernet team driver support (EXPERIMENTAL)"
+        tristate "Ethernet team driver support"
-        depends on EXPERIMENTAL
        ---help---
          This allows one to create virtual interfaces that teams together
          multiple ethernet devices.
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index ef976215b649..3a44a5d7bf9e 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -8,8 +8,7 @@ menu "USB Network Adapters"
        depends on USB && NET
 config USB_CATC
-        tristate "USB CATC NetMate-based Ethernet device support (EXPERIMENTAL)"
+        tristate "USB CATC NetMate-based Ethernet device support"
-        depends on EXPERIMENTAL
        select CRC32
        ---help---
          Say Y if you want to use one of the following 10Mbps USB Ethernet
@@ -83,8 +82,7 @@ config USB_PEGASUS
          module will be called pegasus.
 config USB_RTL8150
-        tristate "USB RTL8150 based ethernet device support (EXPERIMENTAL)"
+        tristate "USB RTL8150 based ethernet device support"
-        depends on EXPERIMENTAL
        select NET_CORE
        select MII
        help
@@ -188,7 +186,7 @@ config USB_NET_CDCETHER
 config USB_NET_CDC_EEM
        tristate "CDC EEM support"
-        depends on USB_USBNET && EXPERIMENTAL
+        depends on USB_USBNET
        help
          This option supports devices conforming to the Communication Device
          Class (CDC) Ethernet Emulation Model, a specification that's easy to
@@ -287,7 +285,7 @@ config USB_NET_PLUSB
        tristate "Prolific PL-2301/2302/25A1 based cables"
        # if the handshake/init/reset problems, from original 'plusb',
        # are ever resolved ... then remove "experimental"
-        depends on USB_USBNET && EXPERIMENTAL
+        depends on USB_USBNET
        help
          Choose this option if you're using a host-to-host cable
          with one of these chips.
@@ -301,8 +299,8 @@ config USB_NET_MCS7830
          adapters marketed under the DeLOCK brand.
 config USB_NET_RNDIS_HOST
-        tristate "Host for RNDIS and ActiveSync devices (EXPERIMENTAL)"
+        tristate "Host for RNDIS and ActiveSync devices"
-        depends on USB_USBNET && EXPERIMENTAL
+        depends on USB_USBNET
        select USB_NET_CDCETHER
        help
          This option enables hosting "Remote NDIS" USB networking links,
@@ -380,7 +378,7 @@ config USB_EPSON2888
 config USB_KC2190
        boolean "KT Technology KC2190 based cables (InstaNet)"
-        depends on USB_NET_CDC_SUBSET && EXPERIMENTAL
+        depends on USB_NET_CDC_SUBSET
        help
          Choose this option if you're using a host-to-host cable
          with one of these chips.
diff --git a/drivers/net/wan/Kconfig b/drivers/net/wan/Kconfig
index 0c077b0f7a2b..13daec88d918 100644
--- a/drivers/net/wan/Kconfig
+++ b/drivers/net/wan/Kconfig
@@ -358,7 +358,7 @@ config SDLA
 # X.25 network drivers
 config LAPBETHER
-        tristate "LAPB over Ethernet driver (EXPERIMENTAL)"
+        tristate "LAPB over Ethernet driver"
        depends on LAPB && X25
        ---help---
          Driver for a pseudo device (typically called /dev/lapb0) which allows
@@ -374,7 +374,7 @@ config LAPBETHER
          If unsure, say N.
 config X25_ASY
-        tristate "X.25 async driver (EXPERIMENTAL)"
+        tristate "X.25 async driver"
        depends on LAPB && X25
        ---help---
          Send and receive X.25 frames over regular asynchronous serial
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index 28aa05f60c26..f8f0156dff4e 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -138,7 +138,7 @@ config AIRO_CS
 config PCMCIA_WL3501
        tristate "Planet WL3501 PCMCIA cards"
-        depends on EXPERIMENTAL && PCMCIA
+        depends on PCMCIA
        select WIRELESS_EXT
        select WEXT_SPY
        help
@@ -148,7 +148,7 @@ config PCMCIA_WL3501
 config PRISM54
        tristate 'Intersil Prism GT/Duette/Indigo PCI/Cardbus (DEPRECATED)'
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        select WIRELESS_EXT
        select WEXT_SPY
        select WEXT_PRIV
@@ -187,7 +187,7 @@ config USB_ZD1201
 config USB_NET_RNDIS_WLAN
        tristate "Wireless RNDIS USB support"
-        depends on USB && EXPERIMENTAL
+        depends on USB
        depends on CFG80211
        select USB_USBNET
        select USB_NET_CDCETHER
@@ -217,7 +217,7 @@ source "drivers/net/wireless/rtl818x/Kconfig"
 config ADM8211
        tristate "ADMtek ADM8211 support"
-        depends on MAC80211 && PCI && EXPERIMENTAL
+        depends on MAC80211 && PCI
        select CRC32
        select EEPROM_93CX6
        ---help---
@@ -257,7 +257,7 @@ config MAC80211_HWSIM
 config MWL8K
        tristate "Marvell 88W8xxx PCI/PCIe Wireless support"
-        depends on MAC80211 && PCI && EXPERIMENTAL
+        depends on MAC80211 && PCI
        ---help---
          This driver supports Marvell TOPDOG 802.11 wireless cards.
diff --git a/drivers/net/wireless/ath/ath6kl/Kconfig b/drivers/net/wireless/ath/ath6kl/Kconfig
index 26c4b7220859..630c83db056e 100644
--- a/drivers/net/wireless/ath/ath6kl/Kconfig
+++ b/drivers/net/wireless/ath/ath6kl/Kconfig
@@ -18,7 +18,6 @@ config ATH6KL_USB
        depends on ATH6KL
        depends on USB
        depends on CFG80211
-        depends on EXPERIMENTAL
        ---help---
          This module adds support for wireless adapters based on
          Atheros AR6004 chipset running over USB. This is still under
diff --git a/drivers/net/wireless/ath/carl9170/Kconfig b/drivers/net/wireless/ath/carl9170/Kconfig
index 13a204598766..1a796e5f69ec 100644
--- a/drivers/net/wireless/ath/carl9170/Kconfig
+++ b/drivers/net/wireless/ath/carl9170/Kconfig
@@ -1,6 +1,6 @@
 config CARL9170
        tristate "Linux Community AR9170 802.11n USB support"
-        depends on USB && MAC80211 && EXPERIMENTAL
+        depends on USB && MAC80211
        select ATH_COMMON
        select FW_LOADER
        select CRC32
diff --git a/drivers/net/wireless/ath/wil6210/dbg_hexdump.h b/drivers/net/wireless/ath/wil6210/dbg_hexdump.h
index 6a315ba5aa7d..e5712f026c47 100644
--- a/drivers/net/wireless/ath/wil6210/dbg_hexdump.h
+++ b/drivers/net/wireless/ath/wil6210/dbg_hexdump.h
@@ -1,25 +1,15 @@
 #ifndef WIL_DBG_HEXDUMP_H_
 #define WIL_DBG_HEXDUMP_H_
-#if defined(CONFIG_DYNAMIC_DEBUG)
+#include <linux/printk.h>
-#define wil_dynamic_hex_dump(prefix_str, prefix_type, rowsize,  \
+#include <linux/dynamic_debug.h>
-                             groupsize, buf, len, ascii)        \
-do {                                                            \
-        DEFINE_DYNAMIC_DEBUG_METADATA(descriptor,               \
-                __builtin_constant_p(prefix_str) ? prefix_str : "hexdump");\
-        if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT))  \
-                print_hex_dump(KERN_DEBUG, prefix_str,          \
-                               prefix_type, rowsize, groupsize, \
-                               buf, len, ascii);                \
-} while (0)
+#if defined(CONFIG_DYNAMIC_DEBUG)
 #define wil_print_hex_dump_debug(prefix_str, prefix_type, rowsize,      \
                                 groupsize, buf, len, ascii)            \
-        wil_dynamic_hex_dump(prefix_str, prefix_type, rowsize,          \
+        dynamic_hex_dump(prefix_str, prefix_type, rowsize,              \
                             groupsize, buf, len, ascii)
-#define print_hex_dump_bytes(prefix_str, prefix_type, buf, len) \
-        wil_dynamic_hex_dump(prefix_str, prefix_type, 16, 1, buf, len, true)
 #else /* defined(CONFIG_DYNAMIC_DEBUG) */
 #define wil_print_hex_dump_debug(prefix_str, prefix_type, rowsize,      \
                                 groupsize, buf, len, ascii)            \
diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
index 7a28d21ac389..287c6b670a36 100644
--- a/drivers/net/wireless/b43/Kconfig
+++ b/drivers/net/wireless/b43/Kconfig
@@ -78,8 +78,8 @@ config B43_PCMCIA
          If unsure, say N.
 config B43_SDIO
-        bool "Broadcom 43xx SDIO device support (EXPERIMENTAL)"
+        bool "Broadcom 43xx SDIO device support"
-        depends on B43 && SSB_SDIOHOST_POSSIBLE && EXPERIMENTAL
+        depends on B43 && SSB_SDIOHOST_POSSIBLE
        select SSB_SDIOHOST
        ---help---
          Broadcom 43xx device support for Soft-MAC SDIO devices.
@@ -109,8 +109,8 @@ config B43_PIO
        default y
 config B43_PHY_N
-        bool "Support for 802.11n (N-PHY) devices (EXPERIMENTAL)"
+        bool "Support for 802.11n (N-PHY) devices"
-        depends on B43 && EXPERIMENTAL
+        depends on B43
        ---help---
          Support for the N-PHY.
@@ -130,8 +130,8 @@ config B43_PHY_LP
          (802.11a support is optional, and currently disabled).
 config B43_PHY_HT
-        bool "Support for HT-PHY (high throughput) devices (EXPERIMENTAL)"
+        bool "Support for HT-PHY (high throughput) devices"
-        depends on B43 && EXPERIMENTAL
+        depends on B43
        ---help---
          Support for the HT-PHY.
diff --git a/drivers/net/wireless/ipw2x00/Kconfig b/drivers/net/wireless/ipw2x00/Kconfig
index 2715b101aded..91c0cb3c368e 100644
--- a/drivers/net/wireless/ipw2x00/Kconfig
+++ b/drivers/net/wireless/ipw2x00/Kconfig
@@ -137,7 +137,7 @@ config IPW2200_PROMISCUOUS
 config IPW2200_QOS
        bool "Enable QoS support"
-        depends on IPW2200 && EXPERIMENTAL
+        depends on IPW2200
 config IPW2200_DEBUG
        bool "Enable full debugging output in IPW2200 module."
diff --git a/drivers/net/wireless/p54/Kconfig b/drivers/net/wireless/p54/Kconfig
index 0ec55b50798e..15ea36b51a66 100644
--- a/drivers/net/wireless/p54/Kconfig
+++ b/drivers/net/wireless/p54/Kconfig
@@ -1,6 +1,6 @@
 config P54_COMMON
        tristate "Softmac Prism54 support"
-        depends on MAC80211 && EXPERIMENTAL
+        depends on MAC80211
        select FW_LOADER
        select CRC_CCITT
        ---help---
diff --git a/drivers/net/wireless/rt2x00/Kconfig b/drivers/net/wireless/rt2x00/Kconfig
index c7548da6573d..44d6ead43341 100644
--- a/drivers/net/wireless/rt2x00/Kconfig
+++ b/drivers/net/wireless/rt2x00/Kconfig
@@ -82,7 +82,6 @@ config RT2800PCI_RT33XX
 config RT2800PCI_RT35XX
        bool "rt2800pci - Include support for rt35xx devices (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
        default y
        ---help---
          This adds support for rt35xx wireless chipset family to the
@@ -92,7 +91,6 @@ config RT2800PCI_RT35XX
 config RT2800PCI_RT53XX
       bool "rt2800pci - Include support for rt53xx devices (EXPERIMENTAL)"
-       depends on EXPERIMENTAL
       default y
       ---help---
         This adds support for rt53xx wireless chipset family to the
@@ -101,7 +99,6 @@ config RT2800PCI_RT53XX
 config RT2800PCI_RT3290
       bool "rt2800pci - Include support for rt3290 devices (EXPERIMENTAL)"
-       depends on EXPERIMENTAL
       default y
       ---help---
         This adds support for rt3290 wireless chipset family to the
@@ -159,7 +156,6 @@ config RT2800USB_RT33XX
 config RT2800USB_RT35XX
        bool "rt2800usb - Include support for rt35xx devices (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
        default y
        ---help---
          This adds support for rt35xx wireless chipset family to the
@@ -168,7 +164,6 @@ config RT2800USB_RT35XX
 config RT2800USB_RT53XX
       bool "rt2800usb - Include support for rt53xx devices (EXPERIMENTAL)"
-       depends on EXPERIMENTAL
       ---help---
         This adds support for rt53xx wireless chipset family to the
         rt2800usb driver.
diff --git a/drivers/net/wireless/rtl818x/Kconfig b/drivers/net/wireless/rtl818x/Kconfig
index 17d80fe556de..30332175bcd8 100644
--- a/drivers/net/wireless/rtl818x/Kconfig
+++ b/drivers/net/wireless/rtl818x/Kconfig
@@ -3,7 +3,7 @@
 #
 config RTL8180
        tristate "Realtek 8180/8185 PCI support"
-        depends on MAC80211 && PCI && EXPERIMENTAL
+        depends on MAC80211 && PCI
        select EEPROM_93CX6
        ---help---
          This is a driver for RTL8180 and RTL8185 based cards.
diff --git a/drivers/net/wireless/zd1211rw/Kconfig b/drivers/net/wireless/zd1211rw/Kconfig
index 5f809695f71a..96c8e1de0879 100644
--- a/drivers/net/wireless/zd1211rw/Kconfig
+++ b/drivers/net/wireless/zd1211rw/Kconfig
@@ -1,6 +1,6 @@
 config ZD1211RW
        tristate "ZyDAS ZD1211/ZD1211B USB-wireless support"
-        depends on USB && MAC80211 && EXPERIMENTAL
+        depends on USB && MAC80211
        select FW_LOADER
        ---help---
          This is an experimental driver for the ZyDAS ZD1211/ZD1211B wireless
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index 8fd255f7ee40..b90f85bf5f81 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -36,8 +36,8 @@ config PCMCIA
           If unsure, say Y.
 config PCMCIA_LOAD_CIS
-        bool "Load CIS updates from userspace (EXPERIMENTAL)"
+        bool "Load CIS updates from userspace"
-        depends on PCMCIA && EXPERIMENTAL
+        depends on PCMCIA
        select FW_LOADER
        default y
        help
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 471c71f7f8b6..75933a6aa828 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1503,10 +1503,9 @@ static int at91_gpio_probe(struct platform_device *pdev)
                goto err;
        }
-        at91_chip->regbase = devm_request_and_ioremap(&pdev->dev, res);
+        at91_chip->regbase = devm_ioremap_resource(&pdev->dev, res);
-        if (!at91_chip->regbase) {
+        if (IS_ERR(at91_chip->regbase)) {
-                dev_err(&pdev->dev, "failed to map registers, ignoring.\n");
+                ret = PTR_ERR(at91_chip->regbase);
-                ret = -EBUSY;
                goto err;
        }
diff --git a/drivers/pinctrl/pinctrl-bcm2835.c b/drivers/pinctrl/pinctrl-bcm2835.c
index d347b9f2eae3..4eb6d2c4e4df 100644
--- a/drivers/pinctrl/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/pinctrl-bcm2835.c
@@ -959,9 +959,9 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
                return err;
        }
-        pc->base = devm_request_and_ioremap(dev, &iomem);
+        pc->base = devm_ioremap_resource(dev, &iomem);
-        if (!pc->base)
+        if (IS_ERR(pc->base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(pc->base);
        pc->gpio_chip = bcm2835_gpio_chip;
        pc->gpio_chip.dev = dev;
diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
index fbb37154471c..8b7e7bc2226b 100644
--- a/drivers/pinctrl/pinctrl-coh901.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -715,11 +715,9 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        gpio->base = devm_request_and_ioremap(&pdev->dev, memres);
+        gpio->base = devm_ioremap_resource(&pdev->dev, memres);
-        if (!gpio->base) {
+        if (IS_ERR(gpio->base))
-                dev_err(gpio->dev, "could not get remap memory\n");
+                return PTR_ERR(gpio->base);
-                return -ENOMEM;
-        }
        gpio->clk = devm_clk_get(gpio->dev, NULL);
        if (IS_ERR(gpio->clk)) {
diff --git a/drivers/pinctrl/pinctrl-exynos5440.c b/drivers/pinctrl/pinctrl-exynos5440.c
index 142729914c34..1376eb7305db 100644
--- a/drivers/pinctrl/pinctrl-exynos5440.c
+++ b/drivers/pinctrl/pinctrl-exynos5440.c
@@ -866,11 +866,9 @@ static int exynos5440_pinctrl_probe(struct platform_device *pdev)
                return -ENOENT;
        }
-        priv->reg_base = devm_request_and_ioremap(&pdev->dev, res);
+        priv->reg_base = devm_ioremap_resource(&pdev->dev, res);
-        if (!priv->reg_base) {
+        if (IS_ERR(priv->reg_base))
-                dev_err(dev, "ioremap failed\n");
+                return PTR_ERR(priv->reg_base);
-                return -ENODEV;
-        }
        ret = exynos5440_gpiolib_register(pdev, priv);
        if (ret)
diff --git a/drivers/pinctrl/pinctrl-falcon.c b/drivers/pinctrl/pinctrl-falcon.c
index 4a0d54a08890..af97a1f90007 100644
--- a/drivers/pinctrl/pinctrl-falcon.c
+++ b/drivers/pinctrl/pinctrl-falcon.c
@@ -447,14 +447,11 @@ static int pinctrl_falcon_probe(struct platform_device *pdev)
                        dev_err(&ppdev->dev, "failed to get clock\n");
                        return PTR_ERR(falcon_info.clk[*bank]);
                }
-                falcon_info.membase[*bank] =
+                falcon_info.membase[*bank] = devm_ioremap_resource(&pdev->dev,
-                                devm_request_and_ioremap(&pdev->dev, &res);
+                                                                   &res);
-                if (!falcon_info.membase[*bank]) {
+                if (IS_ERR(falcon_info.membase[*bank]))
-                        dev_err(&pdev->dev,
+                        return PTR_ERR(falcon_info.membase[*bank]);
-                                "Failed to remap memory for bank %d\n",
+                
-                                *bank);
-                        return -ENOMEM;
-                }
                avail = pad_r32(falcon_info.membase[*bank],
                                        LTQ_PADC_AVAIL);
                pins = fls(avail);
diff --git a/drivers/pinctrl/pinctrl-imx.c b/drivers/pinctrl/pinctrl-imx.c
index 43a6f1ffc786..4cebb9c6c5c5 100644
--- a/drivers/pinctrl/pinctrl-imx.c
+++ b/drivers/pinctrl/pinctrl-imx.c
@@ -584,9 +584,9 @@ int imx_pinctrl_probe(struct platform_device *pdev,
        if (!res)
                return -ENOENT;
-        ipctl->base = devm_request_and_ioremap(&pdev->dev, res);
+        ipctl->base = devm_ioremap_resource(&pdev->dev, res);
-        if (!ipctl->base)
+        if (IS_ERR(ipctl->base))
-                return -EBUSY;
+                return PTR_ERR(ipctl->base);
        imx_pinctrl_desc.name = dev_name(&pdev->dev);
        imx_pinctrl_desc.pins = info->pins;
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index de9e8519b803..3c80dd98304b 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -1362,9 +1362,9 @@ static int nmk_gpio_probe(struct platform_device *dev)
        if (secondary_irq >= 0 && !pdata->get_secondary_status)
                return -EINVAL;
-        base = devm_request_and_ioremap(&dev->dev, res);
+        base = devm_ioremap_resource(&dev->dev, res);
-        if (!base)
+        if (IS_ERR(base))
-                return -ENOMEM;
+                return PTR_ERR(base);
        clk = devm_clk_get(&dev->dev, NULL);
        if (IS_ERR(clk))
diff --git a/drivers/pinctrl/pinctrl-pxa3xx.c b/drivers/pinctrl/pinctrl-pxa3xx.c
index 51f8a388b917..1f49bb02a6af 100644
--- a/drivers/pinctrl/pinctrl-pxa3xx.c
+++ b/drivers/pinctrl/pinctrl-pxa3xx.c
@@ -11,6 +11,7 @@
 *
 */
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/io.h>
@@ -187,9 +188,9 @@ int pxa3xx_pinctrl_register(struct platform_device *pdev,
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        if (!res)
                return -ENOENT;
-        info->virt_base = devm_request_and_ioremap(&pdev->dev, res);
+        info->virt_base = devm_ioremap_resource(&pdev->dev, res);
-        if (!info->virt_base)
+        if (IS_ERR(info->virt_base))
-                return -ENOMEM;
+                return PTR_ERR(info->virt_base);
        info->pctrl = pinctrl_register(desc, &pdev->dev, info);
        if (!info->pctrl) {
                dev_err(&pdev->dev, "failed to register PXA pinmux driver\n");
diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c
index 5c20ed056054..5f8441ef59ca 100644
--- a/drivers/pinctrl/pinctrl-samsung.c
+++ b/drivers/pinctrl/pinctrl-samsung.c
@@ -916,11 +916,9 @@ static int samsung_pinctrl_probe(struct platform_device *pdev)
                return -ENOENT;
        }
-        drvdata->virt_base = devm_request_and_ioremap(&pdev->dev, res);
+        drvdata->virt_base = devm_ioremap_resource(&pdev->dev, res);
-        if (!drvdata->virt_base) {
+        if (IS_ERR(drvdata->virt_base))
-                dev_err(dev, "ioremap failed\n");
+                return PTR_ERR(drvdata->virt_base);
-                return -ENODEV;
-        }
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (res)
diff --git a/drivers/pinctrl/pinctrl-u300.c b/drivers/pinctrl/pinctrl-u300.c
index 718ec5762683..2b5772550836 100644
--- a/drivers/pinctrl/pinctrl-u300.c
+++ b/drivers/pinctrl/pinctrl-u300.c
@@ -1078,9 +1078,9 @@ static int u300_pmx_probe(struct platform_device *pdev)
        if (!res)
                return -ENOENT;
-        upmx->virtbase = devm_request_and_ioremap(&pdev->dev, res);
+        upmx->virtbase = devm_ioremap_resource(&pdev->dev, res);
-        if (!upmx->virtbase)
+        if (IS_ERR(upmx->virtbase))
-                return -ENOMEM;
+                return PTR_ERR(upmx->virtbase);
        upmx->pctl = pinctrl_register(&u300_pmx_desc, &pdev->dev, upmx);
        if (!upmx->pctl) {
diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c
index 53cb6a3a56ed..068224efa6fa 100644
--- a/drivers/pinctrl/pinctrl-xway.c
+++ b/drivers/pinctrl/pinctrl-xway.c
@@ -9,6 +9,7 @@
 *  Copyright (C) 2012 John Crispin <blogic@openwrt.org>
 */
+#include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/of_platform.h>
@@ -719,11 +720,9 @@ static int pinmux_xway_probe(struct platform_device *pdev)
                dev_err(&pdev->dev, "Failed to get resource\n");
                return -ENOENT;
        }
-        xway_info.membase[0] = devm_request_and_ioremap(&pdev->dev, res);
+        xway_info.membase[0] = devm_ioremap_resource(&pdev->dev, res);
-        if (!xway_info.membase[0]) {
+        if (IS_ERR(xway_info.membase[0]))
-                dev_err(&pdev->dev, "Failed to remap resource\n");
+                return PTR_ERR(xway_info.membase[0]);
-                return -ENOMEM;
-        }
        match = of_match_device(xway_match, &pdev->dev);
        if (match)
diff --git a/drivers/pinctrl/spear/pinctrl-plgpio.c b/drivers/pinctrl/spear/pinctrl-plgpio.c
index 3cf4ecd9302c..295b349a05cf 100644
--- a/drivers/pinctrl/spear/pinctrl-plgpio.c
+++ b/drivers/pinctrl/spear/pinctrl-plgpio.c
@@ -540,11 +540,9 @@ static int plgpio_probe(struct platform_device *pdev)
                return -ENOMEM;
        }
-        plgpio->base = devm_request_and_ioremap(&pdev->dev, res);
+        plgpio->base = devm_ioremap_resource(&pdev->dev, res);
-        if (!plgpio->base) {
+        if (IS_ERR(plgpio->base))
-                dev_err(&pdev->dev, "request and ioremap fail\n");
+                return PTR_ERR(plgpio->base);
-                return -ENOMEM;
-        }
        ret = plgpio_probe_dt(pdev, plgpio);
        if (ret) {
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index c86bae828c28..7ab0b2fba503 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -80,10 +80,9 @@ config ASUS_LAPTOP
          If you have an ACPI-compatible ASUS laptop, say Y or M here.
 config DELL_LAPTOP
-        tristate "Dell Laptop Extras (EXPERIMENTAL)"
+        tristate "Dell Laptop Extras"
        depends on X86
        depends on DCDBAS
-        depends on EXPERIMENTAL
        depends on BACKLIGHT_CLASS_DEVICE
        depends on RFKILL || RFKILL = n
        depends on SERIO_I8042
@@ -171,9 +170,8 @@ config AMILO_RFKILL
          laptops.
 config TC1100_WMI
-        tristate "HP Compaq TC1100 Tablet WMI Extras (EXPERIMENTAL)"
+        tristate "HP Compaq TC1100 Tablet WMI Extras"
        depends on !X86_64
-        depends on EXPERIMENTAL
        depends on ACPI
        depends on ACPI_WMI
        ---help---
diff --git a/drivers/power/jz4740-battery.c b/drivers/power/jz4740-battery.c
index bf914893c6fd..c675553d4647 100644
--- a/drivers/power/jz4740-battery.c
+++ b/drivers/power/jz4740-battery.c
@@ -22,6 +22,7 @@
 #include <linux/io.h>
 #include <linux/delay.h>
+#include <linux/err.h>
 #include <linux/gpio.h>
 #include <linux/mfd/core.h>
 #include <linux/power_supply.h>
@@ -266,9 +267,9 @@ static int jz_battery_probe(struct platform_device *pdev)
        mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        jz_battery->base = devm_request_and_ioremap(&pdev->dev, mem);
+        jz_battery->base = devm_ioremap_resource(&pdev->dev, mem);
-        if (!jz_battery->base)
+        if (IS_ERR(jz_battery->base))
-                return -EBUSY;
+                return PTR_ERR(jz_battery->base);
        battery = &jz_battery->battery;
        battery->name = pdata->info.name;
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 8a7cfb3cc166..5deac432e2ae 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -141,7 +141,7 @@ int power_supply_set_battery_charged(struct power_supply *psy)
 }
 EXPORT_SYMBOL_GPL(power_supply_set_battery_charged);
-static int power_supply_match_device_by_name(struct device *dev, void *data)
+static int power_supply_match_device_by_name(struct device *dev, const void *data)
 {
        const char *name = data;
        struct power_supply *psy = dev_get_drvdata(dev);
@@ -149,7 +149,7 @@ static int power_supply_match_device_by_name(struct device *dev, void *data)
        return strcmp(psy->name, name) == 0;
 }
-struct power_supply *power_supply_get_by_name(char *name)
+struct power_supply *power_supply_get_by_name(const char *name)
 {
        struct device *dev = class_find_device(power_supply_class, NULL, name,
                                        power_supply_match_device_by_name);
diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index 65a86bdeabed..3f5677b7690e 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -274,9 +274,9 @@ static int imx_pwm_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        imx->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
+        imx->mmio_base = devm_ioremap_resource(&pdev->dev, r);
-        if (imx->mmio_base == NULL)
+        if (IS_ERR(imx->mmio_base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(imx->mmio_base);
        data = of_id->data;
        imx->config = data->config;
diff --git a/drivers/pwm/pwm-lpc32xx.c b/drivers/pwm/pwm-lpc32xx.c
index 14106440294f..b3f0d0dfd748 100644
--- a/drivers/pwm/pwm-lpc32xx.c
+++ b/drivers/pwm/pwm-lpc32xx.c
@@ -110,9 +110,9 @@ static int lpc32xx_pwm_probe(struct platform_device *pdev)
        if (!res)
                return -EINVAL;
-        lpc32xx->base = devm_request_and_ioremap(&pdev->dev, res);
+        lpc32xx->base = devm_ioremap_resource(&pdev->dev, res);
-        if (!lpc32xx->base)
+        if (IS_ERR(lpc32xx->base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(lpc32xx->base);
        lpc32xx->clk = devm_clk_get(&pdev->dev, NULL);
        if (IS_ERR(lpc32xx->clk))
diff --git a/drivers/pwm/pwm-mxs.c b/drivers/pwm/pwm-mxs.c
index 7ec345f01831..a53d3094b75a 100644
--- a/drivers/pwm/pwm-mxs.c
+++ b/drivers/pwm/pwm-mxs.c
@@ -139,9 +139,9 @@ static int mxs_pwm_probe(struct platform_device *pdev)
                return -ENOMEM;
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        mxs->base = devm_request_and_ioremap(&pdev->dev, res);
+        mxs->base = devm_ioremap_resource(&pdev->dev, res);
-        if (!mxs->base)
+        if (IS_ERR(mxs->base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(mxs->base);
        pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
        if (IS_ERR(pinctrl))
diff --git a/drivers/pwm/pwm-puv3.c b/drivers/pwm/pwm-puv3.c
index b882f6032fee..db964e6ecf5c 100644
--- a/drivers/pwm/pwm-puv3.c
+++ b/drivers/pwm/pwm-puv3.c
@@ -123,9 +123,9 @@ static int pwm_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        puv3->base = devm_request_and_ioremap(&pdev->dev, r);
+        puv3->base = devm_ioremap_resource(&pdev->dev, r);
-        if (puv3->base == NULL)
+        if (IS_ERR(puv3->base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(puv3->base);
        puv3->chip.dev = &pdev->dev;
        puv3->chip.ops = &puv3_pwm_ops;
diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c
index f32fc4e66e0c..20370e61de5a 100644
--- a/drivers/pwm/pwm-pxa.c
+++ b/drivers/pwm/pwm-pxa.c
@@ -165,9 +165,9 @@ static int pwm_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        pwm->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
+        pwm->mmio_base = devm_ioremap_resource(&pdev->dev, r);
-        if (pwm->mmio_base == NULL)
+        if (IS_ERR(pwm->mmio_base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(pwm->mmio_base);
        ret = pwmchip_add(&pwm->chip);
        if (ret < 0) {
diff --git a/drivers/pwm/pwm-spear.c b/drivers/pwm/pwm-spear.c
index 83b21d9d5cf9..69a2d9eb34db 100644
--- a/drivers/pwm/pwm-spear.c
+++ b/drivers/pwm/pwm-spear.c
@@ -192,9 +192,9 @@ static int spear_pwm_probe(struct platform_device *pdev)
                return -ENOMEM;
        }
-        pc->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
+        pc->mmio_base = devm_ioremap_resource(&pdev->dev, r);
-        if (!pc->mmio_base)
+        if (IS_ERR(pc->mmio_base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(pc->mmio_base);
        pc->clk = devm_clk_get(&pdev->dev, NULL);
        if (IS_ERR(pc->clk))
diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c
index 30c0e2b70ce8..71900e8cd3d1 100644
--- a/drivers/pwm/pwm-tegra.c
+++ b/drivers/pwm/pwm-tegra.c
@@ -186,9 +186,9 @@ static int tegra_pwm_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        pwm->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
+        pwm->mmio_base = devm_ioremap_resource(&pdev->dev, r);
-        if (!pwm->mmio_base)
+        if (IS_ERR(pwm->mmio_base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(pwm->mmio_base);
        platform_set_drvdata(pdev, pwm);
diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c
index 5cf016dd9822..27a67d6b27c1 100644
--- a/drivers/pwm/pwm-tiecap.c
+++ b/drivers/pwm/pwm-tiecap.c
@@ -238,9 +238,9 @@ static int ecap_pwm_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        pc->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
+        pc->mmio_base = devm_ioremap_resource(&pdev->dev, r);
-        if (!pc->mmio_base)
+        if (IS_ERR(pc->mmio_base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(pc->mmio_base);
        ret = pwmchip_add(&pc->chip);
        if (ret < 0) {
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 72a6dd40c9ec..5a1399580533 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -453,9 +453,9 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        pc->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
+        pc->mmio_base = devm_ioremap_resource(&pdev->dev, r);
-        if (!pc->mmio_base)
+        if (IS_ERR(pc->mmio_base))
-                return  -EADDRNOTAVAIL;
+                return PTR_ERR(pc->mmio_base);
        /* Acquire tbclk for Time Base EHRPWM submodule */
        pc->tbclk = devm_clk_get(&pdev->dev, "tbclk");
diff --git a/drivers/pwm/pwm-tipwmss.c b/drivers/pwm/pwm-tipwmss.c
index 3448a1c88590..17cbc59660ec 100644
--- a/drivers/pwm/pwm-tipwmss.c
+++ b/drivers/pwm/pwm-tipwmss.c
@@ -75,9 +75,9 @@ static int pwmss_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        info->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
+        info->mmio_base = devm_ioremap_resource(&pdev->dev, r);
-        if (!info->mmio_base)
+        if (IS_ERR(info->mmio_base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(info->mmio_base);
        pm_runtime_enable(&pdev->dev);
        pm_runtime_get_sync(&pdev->dev);
diff --git a/drivers/pwm/pwm-vt8500.c b/drivers/pwm/pwm-vt8500.c
index b0ba2d403439..f9de9b28e46e 100644
--- a/drivers/pwm/pwm-vt8500.c
+++ b/drivers/pwm/pwm-vt8500.c
@@ -178,9 +178,9 @@ static int vt8500_pwm_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        chip->base = devm_request_and_ioremap(&pdev->dev, r);
+        chip->base = devm_ioremap_resource(&pdev->dev, r);
-        if (!chip->base)
+        if (IS_ERR(chip->base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(chip->base);
        ret = clk_prepare(chip->clk);
        if (ret < 0) {
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index 96ce101b9067..0b24108d1e1b 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -1,16 +1,14 @@
-menu "Remoteproc drivers (EXPERIMENTAL)"
+menu "Remoteproc drivers"
 # REMOTEPROC gets selected by whoever wants it
 config REMOTEPROC
        tristate
-        depends on EXPERIMENTAL
        depends on HAS_DMA
        select FW_CONFIG
        select VIRTIO
 config OMAP_REMOTEPROC
        tristate "OMAP remoteproc support"
-        depends on EXPERIMENTAL
        depends on HAS_DMA
        depends on ARCH_OMAP4
        depends on OMAP_IOMMU
@@ -32,7 +30,6 @@ config OMAP_REMOTEPROC
 config STE_MODEM_RPROC
        tristate "STE-Modem remoteproc support"
-        depends on EXPERIMENTAL
        depends on HAS_DMA
        select REMOTEPROC
        default n
diff --git a/drivers/rpmsg/Kconfig b/drivers/rpmsg/Kconfig
index 2bd911f12571..f6e0ea6ffda5 100644
--- a/drivers/rpmsg/Kconfig
+++ b/drivers/rpmsg/Kconfig
@@ -1,9 +1,8 @@
-menu "Rpmsg drivers (EXPERIMENTAL)"
+menu "Rpmsg drivers"
 # RPMSG always gets selected by whoever wants it
 config RPMSG
        tristate
        select VIRTIO
-        depends on EXPERIMENTAL
 endmenu
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 9592b936b71b..42bd57da239d 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -587,16 +587,16 @@ void rtc_update_irq(struct rtc_device *rtc,
 }
 EXPORT_SYMBOL_GPL(rtc_update_irq);
-static int __rtc_match(struct device *dev, void *data)
+static int __rtc_match(struct device *dev, const void *data)
 {
-        char *name = (char *)data;
+        const char *name = data;
        if (strcmp(dev_name(dev), name) == 0)
                return 1;
        return 0;
 }
-struct rtc_device *rtc_class_open(char *name)
+struct rtc_device *rtc_class_open(const char *name)
 {
        struct device *dev;
        struct rtc_device *rtc = NULL;
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 404651464d45..0c397ac3b132 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -486,11 +486,9 @@ static int s3c_rtc_probe(struct platform_device *pdev)
                return -ENOENT;
        }
-        s3c_rtc_base = devm_request_and_ioremap(&pdev->dev, res);
+        s3c_rtc_base = devm_ioremap_resource(&pdev->dev, res);
-        if (s3c_rtc_base == NULL) {
+        if (IS_ERR(s3c_rtc_base))
-                dev_err(&pdev->dev, "failed to ioremap memory region\n");
+                return PTR_ERR(s3c_rtc_base);
-                return -EINVAL;
-        }
        rtc_clk = devm_clk_get(&pdev->dev, "rtc");
        if (IS_ERR(rtc_clk)) {
diff --git a/drivers/rtc/rtc-snvs.c b/drivers/rtc/rtc-snvs.c
index d5ec7854a651..40662e9dc0ab 100644
--- a/drivers/rtc/rtc-snvs.c
+++ b/drivers/rtc/rtc-snvs.c
@@ -252,9 +252,9 @@ static int snvs_rtc_probe(struct platform_device *pdev)
                return -ENOMEM;
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        data->ioaddr = devm_request_and_ioremap(&pdev->dev, res);
+        data->ioaddr = devm_ioremap_resource(&pdev->dev, res);
-        if (!data->ioaddr)
+        if (IS_ERR(data->ioaddr))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(data->ioaddr);
        data->irq = platform_get_irq(pdev, 0);
        if (data->irq < 0)
diff --git a/drivers/rtc/rtc-spear.c b/drivers/rtc/rtc-spear.c
index c2121b5a01f2..a18c3192ed40 100644
--- a/drivers/rtc/rtc-spear.c
+++ b/drivers/rtc/rtc-spear.c
@@ -385,11 +385,9 @@ static int spear_rtc_probe(struct platform_device *pdev)
                return status;
        }
-        config->ioaddr = devm_request_and_ioremap(&pdev->dev, res);
+        config->ioaddr = devm_ioremap_resource(&pdev->dev, res);
-        if (!config->ioaddr) {
+        if (IS_ERR(config->ioaddr))
-                dev_err(&pdev->dev, "request-ioremap fail\n");
+                return PTR_ERR(config->ioaddr);
-                return -ENOMEM;
-        }
        config->clk = devm_clk_get(&pdev->dev, NULL);
        if (IS_ERR(config->clk))
diff --git a/drivers/rtc/rtc-tegra.c b/drivers/rtc/rtc-tegra.c
index c84ea6659f49..7c033756d6b5 100644
--- a/drivers/rtc/rtc-tegra.c
+++ b/drivers/rtc/rtc-tegra.c
@@ -327,11 +327,9 @@ static int tegra_rtc_probe(struct platform_device *pdev)
                return -EBUSY;
        }
-        info->rtc_base = devm_request_and_ioremap(&pdev->dev, res);
+        info->rtc_base = devm_ioremap_resource(&pdev->dev, res);
-        if (!info->rtc_base) {
+        if (IS_ERR(info->rtc_base))
-                dev_err(&pdev->dev, "Unable to request mem region and grab IOs for device.\n");
+                return PTR_ERR(info->rtc_base);
-                return -EBUSY;
-        }
        info->tegra_rtc_irq = platform_get_irq(pdev, 0);
        if (info->tegra_rtc_irq <= 0)
diff --git a/drivers/sbus/char/Kconfig b/drivers/sbus/char/Kconfig
index 73cde85d04d8..5ba684f73ab8 100644
--- a/drivers/sbus/char/Kconfig
+++ b/drivers/sbus/char/Kconfig
@@ -21,8 +21,7 @@ config OBP_FLASH
          able to upgrade the OBP firmware, say Y here.
 config TADPOLE_TS102_UCTRL
-        tristate "Tadpole TS102 Microcontroller support (EXPERIMENTAL)"
+        tristate "Tadpole TS102 Microcontroller support"
-        depends on EXPERIMENTAL
        help
          Say Y here to directly support the TS102 Microcontroller interface
          on the Tadpole Sparcbook 3.  This device handles power-management
@@ -30,8 +29,8 @@ config TADPOLE_TS102_UCTRL
          monitors and mice.
 config SUN_JSFLASH
-        tristate "JavaStation OS Flash SIMM (EXPERIMENTAL)"
+        tristate "JavaStation OS Flash SIMM"
-        depends on EXPERIMENTAL && SPARC32
+        depends on SPARC32
        help
          If you say Y here, you will be able to boot from your JavaStation's
          Flash memory.
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 142f632e2a2e..d56b2534f3eb 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -42,7 +42,7 @@ config SCSI_DMA
 config SCSI_TGT
        tristate "SCSI target support"
-        depends on SCSI && EXPERIMENTAL
+        depends on SCSI
        ---help---
          If you want to use SCSI target mode drivers enable this option.
          If you choose M, the module will be called scsi_tgt.
@@ -1392,8 +1392,8 @@ config SCSI_SYM53C416
          module will be called sym53c416.
 config SCSI_DC395x
-        tristate "Tekram DC395(U/UW/F) and DC315(U) SCSI support (EXPERIMENTAL)"
+        tristate "Tekram DC395(U/UW/F) and DC315(U) SCSI support"
-        depends on PCI && SCSI && EXPERIMENTAL
+        depends on PCI && SCSI
        ---help---
          This driver supports PCI SCSI host adapters based on the ASIC
          TRM-S1040 chip, e.g Tekram DC395(U/UW/F) and DC315(U) variants.
@@ -1618,8 +1618,8 @@ config GVP11_SCSI
          module will be called gvp11.
 config SCSI_A4000T
-        tristate "A4000T NCR53c710 SCSI support (EXPERIMENTAL)"
+        tristate "A4000T NCR53c710 SCSI support"
-        depends on AMIGA && SCSI && EXPERIMENTAL
+        depends on AMIGA && SCSI
        select SCSI_SPI_ATTRS
        help
          If you have an Amiga 4000T and have SCSI devices connected to the
@@ -1629,8 +1629,8 @@ config SCSI_A4000T
          module will be called a4000t.
 config SCSI_ZORRO7XX
-        tristate "Zorro NCR53c710 SCSI support (EXPERIMENTAL)"
+        tristate "Zorro NCR53c710 SCSI support"
-        depends on ZORRO && SCSI && EXPERIMENTAL
+        depends on ZORRO && SCSI
        select SCSI_SPI_ATTRS
        help
          Support for various NCR53c710-based SCSI controllers on Zorro
@@ -1807,8 +1807,8 @@ config SCSI_BFA_FC
          be called bfa.
 config SCSI_VIRTIO
-        tristate "virtio-scsi support (EXPERIMENTAL)"
+        tristate "virtio-scsi support"
-        depends on EXPERIMENTAL && VIRTIO
+        depends on VIRTIO
        help
          This is the virtual HBA driver for virtio.  If the kernel will
          be used in a virtual machine, say Y or M.
diff --git a/drivers/scsi/arm/Kconfig b/drivers/scsi/arm/Kconfig
index a8587f1f5e7e..cfd172a439c9 100644
--- a/drivers/scsi/arm/Kconfig
+++ b/drivers/scsi/arm/Kconfig
@@ -64,19 +64,19 @@ config SCSI_POWERTECSCSI
          you have one of these, say Y. If unsure, say N.
 comment "The following drivers are not fully supported"
-        depends on ARCH_ACORN && EXPERIMENTAL
+        depends on ARCH_ACORN
 config SCSI_CUMANA_1
-        tristate "CumanaSCSI I support (EXPERIMENTAL)"
+        tristate "CumanaSCSI I support"
-        depends on ARCH_ACORN && EXPERIMENTAL && SCSI
+        depends on ARCH_ACORN && SCSI
        select SCSI_SPI_ATTRS
        help
          This enables support for the Cumana SCSI I card. If you have an
          Acorn system with one of these, say Y. If unsure, say N.
 config SCSI_OAK1
-        tristate "Oak SCSI support (EXPERIMENTAL)"
+        tristate "Oak SCSI support"
-        depends on ARCH_ACORN && EXPERIMENTAL && SCSI
+        depends on ARCH_ACORN && SCSI
        select SCSI_SPI_ATTRS
        help
          This enables support for the Oak SCSI card. If you have an Acorn
diff --git a/drivers/scsi/device_handler/Kconfig b/drivers/scsi/device_handler/Kconfig
index 67070257919f..69abd0ad48e2 100644
--- a/drivers/scsi/device_handler/Kconfig
+++ b/drivers/scsi/device_handler/Kconfig
@@ -32,8 +32,8 @@ config SCSI_DH_EMC
        If you have a EMC CLARiiON select y. Otherwise, say N.
 config SCSI_DH_ALUA
-        tristate "SPC-3 ALUA Device Handler (EXPERIMENTAL)"
+        tristate "SPC-3 ALUA Device Handler"
-        depends on SCSI_DH && EXPERIMENTAL
+        depends on SCSI_DH
        help
          SCSI Device handler for generic SPC-3 Asymmetric Logical Unit
          Access (ALUA).
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 593085a52275..df0c3c71ea43 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -468,10 +468,10 @@ void scsi_unregister(struct Scsi_Host *shost)
 }
 EXPORT_SYMBOL(scsi_unregister);
-static int __scsi_host_match(struct device *dev, void *data)
+static int __scsi_host_match(struct device *dev, const void *data)
 {
        struct Scsi_Host *p;
-        unsigned short *hostnum = (unsigned short *)data;
+        const unsigned short *hostnum = data;
        p = class_to_shost(dev);
        return p->host_no == *hostnum;
diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c
index 43754176a7b7..0fab6b5c7b82 100644
--- a/drivers/scsi/osd/osd_uld.c
+++ b/drivers/scsi/osd/osd_uld.c
@@ -268,18 +268,11 @@ static inline bool _the_same_or_null(const u8 *a1, unsigned a1_len,
        return 0 == memcmp(a1, a2, a1_len);
 }
-struct find_oud_t {
+static int _match_odi(struct device *dev, const void *find_data)
-        const struct osd_dev_info *odi;
-        struct device *dev;
-        struct osd_uld_device *oud;
-} ;
-int _mach_odi(struct device *dev, void *find_data)
 {
        struct osd_uld_device *oud = container_of(dev, struct osd_uld_device,
                                                  class_dev);
-        struct find_oud_t *fot = find_data;
+        const struct osd_dev_info *odi = find_data;
-        const struct osd_dev_info *odi = fot->odi;
        if (_the_same_or_null(oud->odi.systemid, oud->odi.systemid_len,
                              odi->systemid, odi->systemid_len) &&
@@ -287,7 +280,6 @@ int _mach_odi(struct device *dev, void *find_data)
                              odi->osdname, odi->osdname_len)) {
                OSD_DEBUG("found device sysid_len=%d osdname=%d\n",
                          odi->systemid_len, odi->osdname_len);
-                fot->oud = oud;
                return 1;
        } else {
                return 0;
@@ -301,19 +293,19 @@ int _mach_odi(struct device *dev, void *find_data)
 */
 struct osd_dev *osduld_info_lookup(const struct osd_dev_info *odi)
 {
-        struct find_oud_t find = {.odi = odi};
+        struct device *dev = class_find_device(&osd_uld_class, NULL, odi, _match_odi);
+        if (likely(dev)) {
-        find.dev = class_find_device(&osd_uld_class, NULL, &find, _mach_odi);
-        if (likely(find.dev)) {
                struct osd_dev_handle *odh = kzalloc(sizeof(*odh), GFP_KERNEL);
+                struct osd_uld_device *oud = container_of(dev,
+                        struct osd_uld_device, class_dev);
                if (unlikely(!odh)) {
-                        put_device(find.dev);
+                        put_device(dev);
                        return ERR_PTR(-ENOMEM);
                }
-                odh->od = find.oud->od;
+                odh->od = oud->od;
-                odh->oud = find.oud;
+                odh->oud = oud;
                return &odh->od;
        }
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 31969f2e13ce..59d427bf08e2 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -183,10 +183,10 @@ static struct attribute_group iscsi_endpoint_group = {
 #define ISCSI_MAX_EPID -1
-static int iscsi_match_epid(struct device *dev, void *data)
+static int iscsi_match_epid(struct device *dev, const void *data)
 {
        struct iscsi_endpoint *ep = iscsi_dev_to_endpoint(dev);
-        uint64_t *epid = (uint64_t *) data;
+        const uint64_t *epid = data;
        return *epid == ep->id;
 }
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index e79884e997ae..f80eee74a311 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -88,7 +88,7 @@ config SPI_BFIN_SPORT
 config SPI_AU1550
        tristate "Au1550/Au1200/Au1300 SPI Controller"
-        depends on MIPS_ALCHEMY && EXPERIMENTAL
+        depends on MIPS_ALCHEMY
        select SPI_BITBANG
        help
          If you say yes to this option, support will be included for the
@@ -188,7 +188,7 @@ config SPI_IMX
 config SPI_LM70_LLP
        tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
-        depends on PARPORT && EXPERIMENTAL
+        depends on PARPORT
        select SPI_BITBANG
        help
          This driver supports the NS LM70 LLP Evaluation Board,
@@ -204,7 +204,7 @@ config SPI_MPC52xx
 config SPI_MPC52xx_PSC
        tristate "Freescale MPC52xx PSC SPI controller"
-        depends on PPC_MPC52xx && EXPERIMENTAL
+        depends on PPC_MPC52xx
        help
          This enables using the Freescale MPC52xx Programmable Serial
          Controller in master SPI mode.
@@ -273,8 +273,8 @@ config SPI_OMAP_100K
          OMAP SPI 100K master controller for omap7xx boards.
 config SPI_ORION
-        tristate "Orion SPI master (EXPERIMENTAL)"
+        tristate "Orion SPI master"
-        depends on PLAT_ORION && EXPERIMENTAL
+        depends on PLAT_ORION
        help
          This enables using the SPI master controller on the Orion chips.
@@ -328,7 +328,7 @@ config SPI_RSPI
 config SPI_S3C24XX
        tristate "Samsung S3C24XX series SPI"
-        depends on ARCH_S3C24XX && EXPERIMENTAL
+        depends on ARCH_S3C24XX
        select SPI_BITBANG
        help
          SPI driver for Samsung S3C24XX series ARM SoCs
@@ -443,7 +443,7 @@ config SPI_XCOMM
 config SPI_XILINX
        tristate "Xilinx SPI controller common module"
-        depends on HAS_IOMEM && EXPERIMENTAL
+        depends on HAS_IOMEM
        select SPI_BITBANG
        help
          This exposes the SPI controller IP from the Xilinx EDK.
@@ -455,7 +455,7 @@ config SPI_XILINX
 config SPI_NUC900
        tristate "Nuvoton NUC900 series SPI"
-        depends on ARCH_W90X900 && EXPERIMENTAL
+        depends on ARCH_W90X900
        select SPI_BITBANG
        help
          SPI driver for Nuvoton NUC900 series ARM SoCs
@@ -489,7 +489,6 @@ comment "SPI Protocol Masters"
 config SPI_SPIDEV
        tristate "User mode SPI device driver support"
-        depends on EXPERIMENTAL
        help
          This supports user mode SPI protocol drivers.
diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c
index aecbff16ad60..d7bac60253c9 100644
--- a/drivers/spi/spi-ep93xx.c
+++ b/drivers/spi/spi-ep93xx.c
@@ -1085,10 +1085,9 @@ static int ep93xx_spi_probe(struct platform_device *pdev)
        espi->sspdr_phys = res->start + SSPDR;
-        espi->regs_base = devm_request_and_ioremap(&pdev->dev, res);
+        espi->regs_base = devm_ioremap_resource(&pdev->dev, res);
-        if (!espi->regs_base) {
+        if (IS_ERR(espi->regs_base)) {
-                dev_err(&pdev->dev, "failed to map resources\n");
+                error = PTR_ERR(espi->regs_base);
-                error = -ENODEV;
                goto fail_put_clock;
        }
diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index e3d8b3197d22..22a0af0147fb 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -541,9 +541,9 @@ static int mxs_spi_probe(struct platform_device *pdev)
        if (!iores || irq_err < 0 || irq_dma < 0)
                return -EINVAL;
-        base = devm_request_and_ioremap(&pdev->dev, iores);
+        base = devm_ioremap_resource(&pdev->dev, iores);
-        if (!base)
+        if (IS_ERR(base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(base);
        pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
        if (IS_ERR(pinctrl))
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index 69945b014c96..893c3d78e426 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -1222,10 +1222,9 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
        r->end += regs_offset;
        mcspi->phys = r->start;
-        mcspi->base = devm_request_and_ioremap(&pdev->dev, r);
+        mcspi->base = devm_ioremap_resource(&pdev->dev, r);
-        if (!mcspi->base) {
+        if (IS_ERR(mcspi->base)) {
-                dev_dbg(&pdev->dev, "can't ioremap MCSPI\n");
+                status = PTR_ERR(mcspi->base);
-                status = -ENOMEM;
                goto free_master;
        }
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 7cfbe9d3381f..e862ab8853aa 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1241,10 +1241,9 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
        /* the spi->mode bits understood by this driver: */
        master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
-        sdd->regs = devm_request_and_ioremap(&pdev->dev, mem_res);
+        sdd->regs = devm_ioremap_resource(&pdev->dev, mem_res);
-        if (sdd->regs == NULL) {
+        if (IS_ERR(sdd->regs)) {
-                dev_err(&pdev->dev, "Unable to remap IO\n");
+                ret = PTR_ERR(sdd->regs);
-                ret = -ENXIO;
                goto err0;
        }
diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c
index 6a5626d146b7..f59d4177b419 100644
--- a/drivers/spi/spi-sirf.c
+++ b/drivers/spi/spi-sirf.c
@@ -534,10 +534,9 @@ static int spi_sirfsoc_probe(struct platform_device *pdev)
                }
        }
-        sspi->base = devm_request_and_ioremap(&pdev->dev, mem_res);
+        sspi->base = devm_ioremap_resource(&pdev->dev, mem_res);
-        if (!sspi->base) {
+        if (IS_ERR(sspi->base)) {
-                dev_err(&pdev->dev, "IO remap failed!\n");
+                ret = PTR_ERR(sspi->base);
-                ret = -ENOMEM;
                goto free_master;
        }
diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index 9a42c158e245..8a61b27a9f2d 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -516,11 +516,9 @@ static int tegra_sflash_probe(struct platform_device *pdev)
                ret = -ENODEV;
                goto exit_free_master;
        }
-        tsd->base = devm_request_and_ioremap(&pdev->dev, r);
+        tsd->base = devm_ioremap_resource(&pdev->dev, r);
-        if (!tsd->base) {
+        if (IS_ERR(tsd->base)) {
-                dev_err(&pdev->dev,
+                ret = PTR_ERR(tsd->base);
-                        "Cannot request memregion/iomap dma address\n");
-                ret = -EADDRNOTAVAIL;
                goto exit_free_master;
        }
diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index 8d51db8dea6d..8458c4bf7172 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -1169,11 +1169,9 @@ static int tegra_slink_probe(struct platform_device *pdev)
                goto exit_free_master;
        }
        tspi->phys = r->start;
-        tspi->base = devm_request_and_ioremap(&pdev->dev, r);
+        tspi->base = devm_ioremap_resource(&pdev->dev, r);
-        if (!tspi->base) {
+        if (IS_ERR(tspi->base)) {
-                dev_err(&pdev->dev,
+                ret = PTR_ERR(tspi->base);
-                        "Cannot request memregion/iomap dma address\n");
-                ret = -EADDRNOTAVAIL;
                goto exit_free_master;
        }
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 6f193b02a9e8..f996c600eb8c 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1251,10 +1251,10 @@ int spi_master_resume(struct spi_master *master)
 }
 EXPORT_SYMBOL_GPL(spi_master_resume);
-static int __spi_master_match(struct device *dev, void *data)
+static int __spi_master_match(struct device *dev, const void *data)
 {
        struct spi_master *m;
-        u16 *bus_num = data;
+        const u16 *bus_num = data;
        m = container_of(dev, struct spi_master, dev);
        return m->bus_num == *bus_num;
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index c5ceb9d90ea8..3d562da039db 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -15,6 +15,7 @@
 * GNU General Public License for more details.
 */
+#include <linux/err.h>
 #include <linux/interrupt.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
@@ -487,9 +488,9 @@ static int mxs_lradc_probe(struct platform_device *pdev)
        /* Grab the memory area */
        iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        lradc->dev = &pdev->dev;
-        lradc->base = devm_request_and_ioremap(dev, iores);
+        lradc->base = devm_ioremap_resource(dev, iores);
-        if (!lradc->base) {
+        if (IS_ERR(lradc->base)) {
-                ret = -EADDRNOTAVAIL;
+                ret = PTR_ERR(lradc->base);
                goto err_addr;
        }
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 2830946860d1..492e0b61f1e7 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -759,11 +759,9 @@ static int tegra_nvec_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        base = devm_request_and_ioremap(&pdev->dev, res);
+        base = devm_ioremap_resource(&pdev->dev, res);
-        if (!base) {
+        if (IS_ERR(base))
-                dev_err(&pdev->dev, "Can't ioremap I2C region\n");
+                return PTR_ERR(base);
-                return -ENOMEM;
-        }
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (!res) {
diff --git a/drivers/staging/omap-thermal/omap-bandgap.c b/drivers/staging/omap-thermal/omap-bandgap.c
index 8346e3450f83..21fd91bf97b5 100644
--- a/drivers/staging/omap-thermal/omap-bandgap.c
+++ b/drivers/staging/omap-thermal/omap-bandgap.c
@@ -820,15 +820,12 @@ static struct omap_bandgap *omap_bandgap_build(struct platform_device *pdev)
                res = platform_get_resource(pdev, IORESOURCE_MEM, i);
                if (!res)
                        break;
-                chunk = devm_request_and_ioremap(&pdev->dev, res);
+                chunk = devm_ioremap_resource(&pdev->dev, res);
                if (i == 0)
                        bg_ptr->base = chunk;
-                if (!chunk) {
+                if (IS_ERR(chunk))
-                        dev_err(&pdev->dev,
+                        return ERR_CAST(chunk);
-                                "failed to request the IO (%d:%pR).\n",
+                
-                                i, res);
-                        return ERR_PTR(-EADDRNOTAVAIL);
-                }
                i++;
        } while (res);
diff --git a/drivers/thermal/exynos_thermal.c b/drivers/thermal/exynos_thermal.c
index 224751e9f5ff..bada1308318b 100644
--- a/drivers/thermal/exynos_thermal.c
+++ b/drivers/thermal/exynos_thermal.c
@@ -866,11 +866,9 @@ static int exynos_tmu_probe(struct platform_device *pdev)
                return -ENOENT;
        }
-        data->base = devm_request_and_ioremap(&pdev->dev, data->mem);
+        data->base = devm_ioremap_resource(&pdev->dev, data->mem);
-        if (!data->base) {
+        if (IS_ERR(data->base))
-                dev_err(&pdev->dev, "Failed to ioremap memory\n");
+                return PTR_ERR(data->base);
-                return -ENODEV;
-        }
        ret = devm_request_irq(&pdev->dev, data->irq, exynos_tmu_irq,
                IRQF_TRIGGER_RISING, "exynos-tmu", data);
diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
index 418b495e3233..e869eab180be 100644
--- a/drivers/tty/serial/sccnxp.c
+++ b/drivers/tty/serial/sccnxp.c
@@ -15,6 +15,7 @@
 #define SUPPORT_SYSRQ
 #endif
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/console.h>
@@ -875,10 +876,9 @@ static int sccnxp_probe(struct platform_device *pdev)
                goto err_out;
        }
-        membase = devm_request_and_ioremap(&pdev->dev, res);
+        membase = devm_ioremap_resource(&pdev->dev, res);
-        if (!membase) {
+        if (IS_ERR(membase)) {
-                dev_err(&pdev->dev, "Failed to ioremap\n");
+                ret = PTR_ERR(membase);
-                ret = -EIO;
                goto err_out;
        }
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index da9fde850754..6b20fd66d4ad 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2906,9 +2906,9 @@ void do_SAK(struct tty_struct *tty)
 EXPORT_SYMBOL(do_SAK);
-static int dev_match_devt(struct device *dev, void *data)
+static int dev_match_devt(struct device *dev, const void *data)
 {
-        dev_t *devt = data;
+        const dev_t *devt = data;
        return dev->devt == *devt;
 }
diff --git a/drivers/usb/chipidea/usbmisc_imx6q.c b/drivers/usb/chipidea/usbmisc_imx6q.c
index 845efe29e6b9..a1bce391e825 100644
--- a/drivers/usb/chipidea/usbmisc_imx6q.c
+++ b/drivers/usb/chipidea/usbmisc_imx6q.c
@@ -98,9 +98,9 @@ static int usbmisc_imx6q_probe(struct platform_device *pdev)
        spin_lock_init(&data->lock);
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        data->base = devm_request_and_ioremap(&pdev->dev, res);
+        data->base = devm_ioremap_resource(&pdev->dev, res);
-        if (!data->base)
+        if (IS_ERR(data->base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(data->base);
        data->clk = devm_clk_get(&pdev->dev, NULL);
        if (IS_ERR(data->clk)) {
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index f4a21f6f081f..0143ffa4e409 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -1982,17 +1982,7 @@ static struct platform_driver at91_udc_driver = {
        },
 };
-static int __init udc_init_module(void)
+module_platform_driver_probe(at91_udc_driver, at91udc_probe);
-{
-        return platform_driver_probe(&at91_udc_driver, at91udc_probe);
-}
-module_init(udc_init_module);
-static void __exit udc_exit_module(void)
-{
-        platform_driver_unregister(&at91_udc_driver);
-}
-module_exit(udc_exit_module);
 MODULE_DESCRIPTION("AT91 udc driver");
 MODULE_AUTHOR("Thomas Rathbone, David Brownell");
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index a7aed84d98c9..bc19496bcec0 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -2066,17 +2066,7 @@ static struct platform_driver udc_driver = {
        },
 };
-static int __init udc_init(void)
+module_platform_driver_probe(udc_driver, usba_udc_probe);
-{
-        return platform_driver_probe(&udc_driver, usba_udc_probe);
-}
-module_init(udc_init);
-static void __exit udc_exit(void)
-{
-        platform_driver_unregister(&udc_driver);
-}
-module_exit(udc_exit);
 MODULE_DESCRIPTION("Atmel USBA UDC driver");
 MODULE_AUTHOR("Haavard Skinnemoen (Atmel)");
diff --git a/drivers/usb/gadget/bcm63xx_udc.c b/drivers/usb/gadget/bcm63xx_udc.c
index 47a49931361e..8cc8253f1100 100644
--- a/drivers/usb/gadget/bcm63xx_udc.c
+++ b/drivers/usb/gadget/bcm63xx_udc.c
@@ -2351,19 +2351,20 @@ static int bcm63xx_udc_probe(struct platform_device *pdev)
                dev_err(dev, "error finding USBD resource\n");
                return -ENXIO;
        }
-        udc->usbd_regs = devm_request_and_ioremap(dev, res);
+        udc->usbd_regs = devm_ioremap_resource(dev, res);
+        if (IS_ERR(udc->usbd_regs))
+                return PTR_ERR(udc->usbd_regs);
        res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
        if (!res) {
                dev_err(dev, "error finding IUDMA resource\n");
                return -ENXIO;
        }
-        udc->iudma_regs = devm_request_and_ioremap(dev, res);
-        if (!udc->usbd_regs || !udc->iudma_regs) {
+        udc->iudma_regs = devm_ioremap_resource(dev, res);
-                dev_err(dev, "error requesting resources\n");
+        if (IS_ERR(udc->iudma_regs))
-                return -ENXIO;
+                return PTR_ERR(udc->iudma_regs);
-        }
        spin_lock_init(&udc->lock);
        INIT_WORK(&udc->ep0_wq, bcm63xx_ep0_process);
diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c
index 72cd5e6719db..fc7cb09ab52b 100644
--- a/drivers/usb/gadget/fusb300_udc.c
+++ b/drivers/usb/gadget/fusb300_udc.c
@@ -1547,15 +1547,4 @@ static struct platform_driver fusb300_driver = {
        },
 };
-static int __init fusb300_udc_init(void)
+module_platform_driver_probe(fusb300_driver, fusb300_probe);
-{
-        return platform_driver_probe(&fusb300_driver, fusb300_probe);
-}
-module_init(fusb300_udc_init);
-static void __exit fusb300_udc_cleanup(void)
-{
-        platform_driver_unregister(&fusb300_driver);
-}
-module_exit(fusb300_udc_cleanup);
diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c
index a0eb85794fd4..8efd7555fa21 100644
--- a/drivers/usb/gadget/imx_udc.c
+++ b/drivers/usb/gadget/imx_udc.c
@@ -1556,17 +1556,7 @@ static struct platform_driver udc_driver = {
        .resume         = imx_udc_resume,
 };
-static int __init udc_init(void)
+module_platform_driver_probe(udc_driver, imx_udc_probe);
-{
-        return platform_driver_probe(&udc_driver, imx_udc_probe);
-}
-module_init(udc_init);
-static void __exit udc_exit(void)
-{
-        platform_driver_unregister(&udc_driver);
-}
-module_exit(udc_exit);
 MODULE_DESCRIPTION("IMX USB Device Controller driver");
 MODULE_AUTHOR("Darius Augulis <augulis.darius@gmail.com>");
diff --git a/drivers/usb/gadget/lpc32xx_udc.c b/drivers/usb/gadget/lpc32xx_udc.c
index dd1c9b1fe528..aa04089d6899 100644
--- a/drivers/usb/gadget/lpc32xx_udc.c
+++ b/drivers/usb/gadget/lpc32xx_udc.c
@@ -3458,17 +3458,7 @@ static struct platform_driver lpc32xx_udc_driver = {
        },
 };
-static int __init udc_init_module(void)
+module_platform_driver_probe(lpc32xx_udc_driver, lpc32xx_udc_probe);
-{
-        return platform_driver_probe(&lpc32xx_udc_driver, lpc32xx_udc_probe);
-}
-module_init(udc_init_module);
-static void __exit udc_exit_module(void)
-{
-        platform_driver_unregister(&lpc32xx_udc_driver);
-}
-module_exit(udc_exit_module);
 MODULE_DESCRIPTION("LPC32XX udc driver");
 MODULE_AUTHOR("Kevin Wells <kevin.wells@nxp.com>");
diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c
index b6401f1b56ce..dfce0cfe4e6f 100644
--- a/drivers/usb/gadget/m66592-udc.c
+++ b/drivers/usb/gadget/m66592-udc.c
@@ -1753,14 +1753,4 @@ static struct platform_driver m66592_driver = {
        },
 };
-static int __init m66592_udc_init(void)
+module_platform_driver_probe(m66592_driver, m66592_probe);
-{
-        return platform_driver_probe(&m66592_driver, m66592_probe);
-}
-module_init(m66592_udc_init);
-static void __exit m66592_udc_cleanup(void)
-{
-        platform_driver_unregister(&m66592_driver);
-}
-module_exit(m66592_udc_cleanup);
diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index d4ca9f1f7f24..d52e869ce202 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -2100,6 +2100,8 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev)
        int retval, irq;
        u32 chiprev;
+        pr_info("%s: version %s\n", driver_name, DRIVER_VERSION);
        /* insist on Intel/ARM/XScale */
        asm("mrc%? p15, 0, %0, c0, c0" : "=r" (chiprev));
        if ((chiprev & CP15R0_VENDOR_MASK) != CP15R0_XSCALE_VALUE) {
@@ -2346,18 +2348,7 @@ static struct platform_driver udc_driver = {
        },
 };
-static int __init udc_init(void)
+module_platform_driver_probe(udc_driver, pxa25x_udc_probe);
-{
-        pr_info("%s: version %s\n", driver_name, DRIVER_VERSION);
-        return platform_driver_probe(&udc_driver, pxa25x_udc_probe);
-}
-module_init(udc_init);
-static void __exit udc_exit(void)
-{
-        platform_driver_unregister(&udc_driver);
-}
-module_exit(udc_exit);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_AUTHOR("Frank Becker, Robert Schwebel, David Brownell");
diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
index 5a80751accb7..9a9fadd9095f 100644
--- a/drivers/usb/gadget/r8a66597-udc.c
+++ b/drivers/usb/gadget/r8a66597-udc.c
@@ -2031,21 +2031,10 @@ static struct platform_driver r8a66597_driver = {
                .name = (char *) udc_name,
        },
 };
-MODULE_ALIAS("platform:r8a66597_udc");
-static int __init r8a66597_udc_init(void)
-{
-        return platform_driver_probe(&r8a66597_driver, r8a66597_probe);
-}
-module_init(r8a66597_udc_init);
-static void __exit r8a66597_udc_cleanup(void)
+module_platform_driver_probe(r8a66597_driver, r8a66597_probe);
-{
-        platform_driver_unregister(&r8a66597_driver);
-}
-module_exit(r8a66597_udc_cleanup);
 MODULE_DESCRIPTION("R8A66597 USB gadget driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Yoshihiro Shimoda");
+MODULE_ALIAS("platform:r8a66597_udc");
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 439c3f972f8c..de80fa644b5a 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -3525,10 +3525,9 @@ static int s3c_hsotg_probe(struct platform_device *pdev)
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        hsotg->regs = devm_request_and_ioremap(&pdev->dev, res);
+        hsotg->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (!hsotg->regs) {
+        if (IS_ERR(hsotg->regs)) {
-                dev_err(dev, "cannot map registers\n");
+                ret = PTR_ERR(hsotg->regs);
-                ret = -ENXIO;
                goto err_clk;
        }
diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c
index 52379b11f080..94ca33bb990b 100644
--- a/drivers/usb/gadget/s3c-hsudc.c
+++ b/drivers/usb/gadget/s3c-hsudc.c
@@ -1295,10 +1295,9 @@ static int s3c_hsudc_probe(struct platform_device *pdev)
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        hsudc->regs = devm_request_and_ioremap(&pdev->dev, res);
+        hsudc->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (!hsudc->regs) {
+        if (IS_ERR(hsudc->regs)) {
-                dev_err(dev, "error mapping device register area\n");
+                ret = PTR_ERR(hsudc->regs);
-                ret = -EBUSY;
                goto err_res;
        }
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 27639487f7ac..f3beac4d06b8 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -143,10 +143,9 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
        hcd->rsrc_start = res->start;
        hcd->rsrc_len = resource_size(res);
-        hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
+        hcd->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (hcd->regs == NULL) {
+        if (IS_ERR(hcd->regs)) {
-                dev_dbg(&pdev->dev, "error mapping memory\n");
+                retval = PTR_ERR(hcd->regs);
-                retval = -EFAULT;
                goto fail_request_resource;
        }
diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c
index 1fc89292f5d6..5d75de9729b6 100644
--- a/drivers/usb/host/ehci-grlib.c
+++ b/drivers/usb/host/ehci-grlib.c
@@ -25,7 +25,7 @@
 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
+#include <linux/err.h>
 #include <linux/signal.h>
 #include <linux/of_irq.h>
@@ -118,10 +118,9 @@ static int ehci_hcd_grlib_probe(struct platform_device *op)
                goto err_irq;
        }
-        hcd->regs = devm_request_and_ioremap(&op->dev, &res);
+        hcd->regs = devm_ioremap_resource(&op->dev, &res);
-        if (!hcd->regs) {
+        if (IS_ERR(hcd->regs)) {
-                pr_err("%s: devm_request_and_ioremap failed\n", __FILE__);
+                rv = PTR_ERR(hcd->regs);
-                rv = -ENOMEM;
                goto err_ioremap;
        }
diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index dedb80bb8d40..e2004de6ad3d 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -85,10 +85,9 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
        hcd->rsrc_start = res->start;
        hcd->rsrc_len = resource_size(res);
-        hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
+        hcd->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (!hcd->regs) {
+        if (IS_ERR(hcd->regs)) {
-                dev_err(dev, "error mapping memory\n");
+                ret = PTR_ERR(hcd->regs);
-                ret = -EFAULT;
                goto err_alloc;
        }
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index 58fa0c90c7c7..ca7506390542 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -18,6 +18,7 @@
 *
 * Licensed under the GNU/GPL. See COPYING for details.
 */
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/hrtimer.h>
 #include <linux/io.h>
@@ -104,9 +105,9 @@ static int ehci_platform_probe(struct platform_device *dev)
        hcd->rsrc_start = res_mem->start;
        hcd->rsrc_len = resource_size(res_mem);
-        hcd->regs = devm_request_and_ioremap(&dev->dev, res_mem);
+        hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
-        if (!hcd->regs) {
+        if (IS_ERR(hcd->regs)) {
-                err = -ENOMEM;
+                err = PTR_ERR(hcd->regs);
                goto err_put_hcd;
        }
        err = usb_add_hcd(hcd, irq, IRQF_SHARED);
diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c
index 45aceefd0c2b..56dc732bf451 100644
--- a/drivers/usb/host/ehci-ppc-of.c
+++ b/drivers/usb/host/ehci-ppc-of.c
@@ -12,6 +12,7 @@
 * This file is licenced under the GPL.
 */
+#include <linux/err.h>
 #include <linux/signal.h>
 #include <linux/of.h>
@@ -121,10 +122,9 @@ static int ehci_hcd_ppc_of_probe(struct platform_device *op)
                goto err_irq;
        }
-        hcd->regs = devm_request_and_ioremap(&op->dev, &res);
+        hcd->regs = devm_ioremap_resource(&op->dev, &res);
-        if (!hcd->regs) {
+        if (IS_ERR(hcd->regs)) {
-                pr_err("%s: devm_request_and_ioremap failed\n", __FILE__);
+                rv = PTR_ERR(hcd->regs);
-                rv = -ENOMEM;
                goto err_ioremap;
        }
diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c
index efad02d947f2..f55477c5a1be 100644
--- a/drivers/usb/host/ehci-sead3.c
+++ b/drivers/usb/host/ehci-sead3.c
@@ -19,6 +19,7 @@
 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
+#include <linux/err.h>
 #include <linux/platform_device.h>
 static int ehci_sead3_setup(struct usb_hcd *hcd)
@@ -112,10 +113,9 @@ static int ehci_hcd_sead3_drv_probe(struct platform_device *pdev)
        hcd->rsrc_start = res->start;
        hcd->rsrc_len = resource_size(res);
-        hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
+        hcd->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (!hcd->regs) {
+        if (IS_ERR(hcd->regs)) {
-                pr_debug("ioremap failed");
+                ret = PTR_ERR(hcd->regs);
-                ret = -ENOMEM;
                goto err1;
        }
diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c
index 0c90a24fa989..3565a300f401 100644
--- a/drivers/usb/host/ehci-sh.c
+++ b/drivers/usb/host/ehci-sh.c
@@ -118,10 +118,9 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev)
        hcd->rsrc_start = res->start;
        hcd->rsrc_len = resource_size(res);
-        hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
+        hcd->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (hcd->regs == NULL) {
+        if (IS_ERR(hcd->regs)) {
-                dev_dbg(&pdev->dev, "error mapping memory\n");
+                ret = PTR_ERR(hcd->regs);
-                ret = -ENXIO;
                goto fail_request_resource;
        }
diff --git a/drivers/usb/host/ehci-vt8500.c b/drivers/usb/host/ehci-vt8500.c
index 11695d5b9d86..7ecf709610ba 100644
--- a/drivers/usb/host/ehci-vt8500.c
+++ b/drivers/usb/host/ehci-vt8500.c
@@ -16,6 +16,7 @@
 *
 */
+#include <linux/err.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
@@ -96,10 +97,9 @@ static int vt8500_ehci_drv_probe(struct platform_device *pdev)
        hcd->rsrc_start = res->start;
        hcd->rsrc_len = resource_size(res);
-        hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
+        hcd->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (!hcd->regs) {
+        if (IS_ERR(hcd->regs)) {
-                pr_debug("ioremap failed");
+                ret = PTR_ERR(hcd->regs);
-                ret = -ENOMEM;
                goto err1;
        }
diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c
index 4f285e8e404a..d845e3bcfaff 100644
--- a/drivers/usb/host/ehci-xilinx-of.c
+++ b/drivers/usb/host/ehci-xilinx-of.c
@@ -25,6 +25,7 @@
 *
 */
+#include <linux/err.h>
 #include <linux/signal.h>
 #include <linux/of.h>
@@ -159,10 +160,9 @@ static int ehci_hcd_xilinx_of_probe(struct platform_device *op)
                goto err_irq;
        }
-        hcd->regs = devm_request_and_ioremap(&op->dev, &res);
+        hcd->regs = devm_ioremap_resource(&op->dev, &res);
-        if (!hcd->regs) {
+        if (IS_ERR(hcd->regs)) {
-                pr_err("%s: devm_request_and_ioremap failed\n", __FILE__);
+                rv = PTR_ERR(hcd->regs);
-                rv = -ENOMEM;
                goto err_irq;
        }
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index 2344040c16d2..f4988fbe78e7 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -306,10 +306,9 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
                goto out8;
        }
-        hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
+        hcd->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (!hcd->regs) {
+        if (IS_ERR(hcd->regs)) {
-                dev_err(&pdev->dev, "Failed to devm_request_and_ioremap\n");
+                ret = PTR_ERR(hcd->regs);
-                ret =  -ENOMEM;
                goto out8;
        }
        hcd->rsrc_start = res->start;
diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 084503b03fcf..c3e7287f7921 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -13,6 +13,7 @@
 *
 * Licensed under the GNU/GPL. See COPYING for details.
 */
+#include <linux/err.h>
 #include <linux/platform_device.h>
 #include <linux/usb/ohci_pdriver.h>
@@ -127,9 +128,9 @@ static int ohci_platform_probe(struct platform_device *dev)
        hcd->rsrc_start = res_mem->start;
        hcd->rsrc_len = resource_size(res_mem);
-        hcd->regs = devm_request_and_ioremap(&dev->dev, res_mem);
+        hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
-        if (!hcd->regs) {
+        if (IS_ERR(hcd->regs)) {
-                err = -ENOMEM;
+                err = PTR_ERR(hcd->regs);
                goto err_put_hcd;
        }
        err = usb_add_hcd(hcd, irq, IRQF_SHARED);
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index ad0f55269603..e125770b893c 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -351,10 +351,9 @@ static int usb_hcd_s3c2410_probe(const struct hc_driver *driver,
        hcd->rsrc_start = dev->resource[0].start;
        hcd->rsrc_len   = resource_size(&dev->resource[0]);
-        hcd->regs = devm_request_and_ioremap(&dev->dev, &dev->resource[0]);
+        hcd->regs = devm_ioremap_resource(&dev->dev, &dev->resource[0]);
-        if (!hcd->regs) {
+        if (IS_ERR(hcd->regs)) {
-                dev_err(&dev->dev, "devm_request_and_ioremap failed\n");
+                retval = PTR_ERR(hcd->regs);
-                retval = -ENOMEM;
                goto err_put;
        }
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index f7d764de6fda..99f470d26a38 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -500,10 +500,9 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue, u8 id)
        resources[0].end = resources[0].start + SZ_4 - 1;
        resources[0].flags = IORESOURCE_MEM;
-        glue->usb_ctrl[id] = devm_request_and_ioremap(&pdev->dev, resources);
+        glue->usb_ctrl[id] = devm_ioremap_resource(&pdev->dev, resources);
-        if (glue->usb_ctrl[id] == NULL) {
+        if (IS_ERR(glue->usb_ctrl[id])) {
-                dev_err(dev, "Failed to obtain usb_ctrl%d memory\n", id);
+                ret = PTR_ERR(glue->usb_ctrl[id]);
-                ret = -ENODEV;
                goto err0;
        }
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index da00af460794..acd5f9d71d03 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -523,9 +523,7 @@ static int omap2430_probe(struct platform_device *pdev)
        res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-        glue->control_otghs = devm_request_and_ioremap(&pdev->dev, res);
+        glue->control_otghs = devm_ioremap_resource(&pdev->dev, res);
-        if (glue->control_otghs == NULL)
-                dev_dbg(&pdev->dev, "Failed to obtain control memory\n");
        if (np) {
                pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
diff --git a/drivers/usb/otg/gpio_vbus.c b/drivers/usb/otg/gpio_vbus.c
index a67ffe22179a..a7d4ac591982 100644
--- a/drivers/usb/otg/gpio_vbus.c
+++ b/drivers/usb/otg/gpio_vbus.c
@@ -409,17 +409,7 @@ static struct platform_driver gpio_vbus_driver = {
        .remove  = __exit_p(gpio_vbus_remove),
 };
-static int __init gpio_vbus_init(void)
+module_platform_driver_probe(gpio_vbus_driver, gpio_vbus_probe);
-{
-        return platform_driver_probe(&gpio_vbus_driver, gpio_vbus_probe);
-}
-module_init(gpio_vbus_init);
-static void __exit gpio_vbus_exit(void)
-{
-        platform_driver_unregister(&gpio_vbus_driver);
-}
-module_exit(gpio_vbus_exit);
 MODULE_DESCRIPTION("simple GPIO controlled OTG transceiver driver");
 MODULE_AUTHOR("Philipp Zabel");
diff --git a/drivers/usb/otg/msm_otg.c b/drivers/usb/otg/msm_otg.c
index 3b9f0d951132..749fbf41fb6f 100644
--- a/drivers/usb/otg/msm_otg.c
+++ b/drivers/usb/otg/msm_otg.c
@@ -1756,18 +1756,7 @@ static struct platform_driver msm_otg_driver = {
        },
 };
-static int __init msm_otg_init(void)
+module_platform_driver_probe(msm_otg_driver, msm_otg_probe);
-{
-        return platform_driver_probe(&msm_otg_driver, msm_otg_probe);
-}
-static void __exit msm_otg_exit(void)
-{
-        platform_driver_unregister(&msm_otg_driver);
-}
-module_init(msm_otg_init);
-module_exit(msm_otg_exit);
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("MSM USB transceiver driver");
diff --git a/drivers/usb/otg/mxs-phy.c b/drivers/usb/otg/mxs-phy.c
index 76302720055a..60df28a294b7 100644
--- a/drivers/usb/otg/mxs-phy.c
+++ b/drivers/usb/otg/mxs-phy.c
@@ -115,9 +115,9 @@ static int mxs_phy_probe(struct platform_device *pdev)
                return -ENOENT;
        }
-        base = devm_request_and_ioremap(&pdev->dev, res);
+        base = devm_ioremap_resource(&pdev->dev, res);
-        if (!base)
+        if (IS_ERR(base))
-                return -EBUSY;
+                return PTR_ERR(base);
        clk = devm_clk_get(&pdev->dev, NULL);
        if (IS_ERR(clk)) {
diff --git a/drivers/usb/phy/mv_u3d_phy.c b/drivers/usb/phy/mv_u3d_phy.c
index eaddbe3d4304..9d8599122aa9 100644
--- a/drivers/usb/phy/mv_u3d_phy.c
+++ b/drivers/usb/phy/mv_u3d_phy.c
@@ -283,11 +283,9 @@ static int mv_u3d_phy_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        phy_base = devm_request_and_ioremap(dev, res);
+        phy_base = devm_ioremap_resource(dev, res);
-        if (!phy_base) {
+        if (IS_ERR(phy_base))
-                dev_err(dev, "%s: register mapping failed\n", __func__);
+                return PTR_ERR(phy_base);
-                return -ENXIO;
-        }
        mv_u3d_phy = devm_kzalloc(dev, sizeof(*mv_u3d_phy), GFP_KERNEL);
        if (!mv_u3d_phy)
diff --git a/drivers/usb/phy/omap-usb2.c b/drivers/usb/phy/omap-usb2.c
index 26ae8f49225c..2fdb8ede5f1c 100644
--- a/drivers/usb/phy/omap-usb2.c
+++ b/drivers/usb/phy/omap-usb2.c
@@ -168,11 +168,9 @@ static int omap_usb2_probe(struct platform_device *pdev)
        res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-        phy->control_dev = devm_request_and_ioremap(&pdev->dev, res);
+        phy->control_dev = devm_ioremap_resource(&pdev->dev, res);
-        if (phy->control_dev == NULL) {
+        if (IS_ERR(phy->control_dev))
-                dev_err(&pdev->dev, "Failed to obtain io memory\n");
+                return PTR_ERR(phy->control_dev);
-                return -ENXIO;
-        }
        phy->is_suspended       = 1;
        omap_usb_phy_power(phy, 0);
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 38bce046f4d0..cfd205036aba 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -14,6 +14,7 @@
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */
+#include <linux/err.h>
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/pm_runtime.h>
@@ -443,11 +444,9 @@ static int usbhs_probe(struct platform_device *pdev)
                return -ENOMEM;
        }
-        priv->base = devm_request_and_ioremap(&pdev->dev, res);
+        priv->base = devm_ioremap_resource(&pdev->dev, res);
-        if (!priv->base) {
+        if (IS_ERR(priv->base))
-                dev_err(&pdev->dev, "ioremap error.\n");
+                return PTR_ERR(priv->base);
-                return -ENOMEM;
-        }
        /*
         * care platform info
diff --git a/drivers/uwb/lc-rc.c b/drivers/uwb/lc-rc.c
index 4d688c750801..3eca6ceb9844 100644
--- a/drivers/uwb/lc-rc.c
+++ b/drivers/uwb/lc-rc.c
@@ -40,9 +40,9 @@
 #include "uwb-internal.h"
-static int uwb_rc_index_match(struct device *dev, void *data)
+static int uwb_rc_index_match(struct device *dev, const void *data)
 {
-        int *index = data;
+        const int *index = data;
        struct uwb_rc *rc = dev_get_drvdata(dev);
        if (rc->index == *index)
@@ -334,9 +334,9 @@ void uwb_rc_rm(struct uwb_rc *rc)
 }
 EXPORT_SYMBOL_GPL(uwb_rc_rm);
-static int find_rc_try_get(struct device *dev, void *data)
+static int find_rc_try_get(struct device *dev, const void *data)
 {
-        struct uwb_rc *target_rc = data;
+        const struct uwb_rc *target_rc = data;
        struct uwb_rc *rc = dev_get_drvdata(dev);
        if (rc == NULL) {
@@ -386,9 +386,9 @@ static inline struct uwb_rc *uwb_rc_get(struct uwb_rc *rc)
        return rc;
 }
-static int find_rc_grandpa(struct device *dev, void *data)
+static int find_rc_grandpa(struct device *dev, const void *data)
 {
-        struct device *grandpa_dev = data;
+        const struct device *grandpa_dev = data;
        struct uwb_rc *rc = dev_get_drvdata(dev);
        if (rc->uwb_dev.dev.parent->parent == grandpa_dev) {
@@ -419,7 +419,7 @@ struct uwb_rc *uwb_rc_get_by_grandpa(const struct device *grandpa_dev)
        struct device *dev;
        struct uwb_rc *rc = NULL;
-        dev = class_find_device(&uwb_rc_class, NULL, (void *)grandpa_dev,
+        dev = class_find_device(&uwb_rc_class, NULL, grandpa_dev,
                                find_rc_grandpa);
        if (dev)
                rc = dev_get_drvdata(dev);
@@ -432,9 +432,9 @@ EXPORT_SYMBOL_GPL(uwb_rc_get_by_grandpa);
 *
 * @returns the pointer to the radio controller, properly referenced
 */
-static int find_rc_dev(struct device *dev, void *data)
+static int find_rc_dev(struct device *dev, const void *data)
 {
-        struct uwb_dev_addr *addr = data;
+        const struct uwb_dev_addr *addr = data;
        struct uwb_rc *rc = dev_get_drvdata(dev);
        if (rc == NULL) {
@@ -453,8 +453,7 @@ struct uwb_rc *uwb_rc_get_by_dev(const struct uwb_dev_addr *addr)
        struct device *dev;
        struct uwb_rc *rc = NULL;
-        dev = class_find_device(&uwb_rc_class, NULL, (void *)addr,
+        dev = class_find_device(&uwb_rc_class, NULL, addr, find_rc_dev);
-                                find_rc_dev);
        if (dev)
                rc = dev_get_drvdata(dev);
diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig
index 202bba6c997c..bf243177ffe1 100644
--- a/drivers/vhost/Kconfig
+++ b/drivers/vhost/Kconfig
@@ -1,6 +1,6 @@
 config VHOST_NET
-        tristate "Host kernel accelerator for virtio net (EXPERIMENTAL)"
+        tristate "Host kernel accelerator for virtio net"
-        depends on NET && EVENTFD && (TUN || !TUN) && (MACVTAP || !MACVTAP) && EXPERIMENTAL
+        depends on NET && EVENTFD && (TUN || !TUN) && (MACVTAP || !MACVTAP)
        ---help---
          This kernel module can be loaded in host kernel to accelerate
          guest networking with virtio_net. Not to be confused with virtio_net
diff --git a/drivers/vhost/Kconfig.tcm b/drivers/vhost/Kconfig.tcm
index a9c6f76e3208..7e3aa28d999e 100644
--- a/drivers/vhost/Kconfig.tcm
+++ b/drivers/vhost/Kconfig.tcm
@@ -1,6 +1,6 @@
 config TCM_VHOST
-        tristate "TCM_VHOST fabric module (EXPERIMENTAL)"
+        tristate "TCM_VHOST fabric module"
-        depends on TARGET_CORE && EVENTFD && EXPERIMENTAL && m
+        depends on TARGET_CORE && EVENTFD && m
        default n
        ---help---
        Say M here to enable the TCM_VHOST fabric module for use with virtio-scsi guests
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index e7068c508800..e4e1765b82f2 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1112,8 +1112,8 @@ config FB_RIVA_BACKLIGHT
          Say Y here if you want to control the backlight of your display.
 config FB_I740
-        tristate "Intel740 support (EXPERIMENTAL)"
+        tristate "Intel740 support"
-        depends on EXPERIMENTAL && FB && PCI
+        depends on FB && PCI
        select FB_MODE_HELPERS
        select FB_CFB_FILLRECT
        select FB_CFB_COPYAREA
@@ -1124,8 +1124,8 @@ config FB_I740
          This driver supports graphics cards based on Intel740 chip.
 config FB_I810
-        tristate "Intel 810/815 support (EXPERIMENTAL)"
+        tristate "Intel 810/815 support"
-        depends on EXPERIMENTAL && FB && PCI && X86_32 && AGP_INTEL
+        depends on FB && PCI && X86_32 && AGP_INTEL
        select FB_MODE_HELPERS
        select FB_CFB_FILLRECT
        select FB_CFB_COPYAREA
@@ -1187,8 +1187,8 @@ config FB_CARILLO_RANCH
          This driver supports the LE80578 (Carillo Ranch) board
 config FB_INTEL
-        tristate "Intel 830M/845G/852GM/855GM/865G/915G/945G/945GM/965G/965GM support (EXPERIMENTAL)"
+        tristate "Intel 830M/845G/852GM/855GM/865G/915G/945G/945GM/965G/965GM support"
-        depends on EXPERIMENTAL && FB && PCI && X86 && AGP_INTEL && EXPERT
+        depends on FB && PCI && X86 && AGP_INTEL && EXPERT
        select FB_MODE_HELPERS
        select FB_CFB_FILLRECT
        select FB_CFB_COPYAREA
@@ -1432,7 +1432,7 @@ config FB_ATY_CT
          is at <http://support.ati.com/products/pc/mach64/mach64.html>.
 config FB_ATY_GENERIC_LCD
-        bool "Mach64 generic LCD support (EXPERIMENTAL)"
+        bool "Mach64 generic LCD support"
        depends on FB_ATY_CT
        help
          Say Y if you have a laptop with an ATI Rage LT PRO, Rage Mobility,
@@ -1479,7 +1479,7 @@ config FB_S3_DDC
 config FB_SAVAGE
        tristate "S3 Savage support"
-        depends on FB && PCI && EXPERIMENTAL
+        depends on FB && PCI
        select FB_MODE_HELPERS
        select FB_CFB_FILLRECT
        select FB_CFB_COPYAREA
@@ -1633,15 +1633,15 @@ config FB_3DFX
          module will be called tdfxfb.
 config FB_3DFX_ACCEL
-        bool "3Dfx Acceleration functions (EXPERIMENTAL)"
+        bool "3Dfx Acceleration functions"
-        depends on FB_3DFX && EXPERIMENTAL
+        depends on FB_3DFX
        ---help---
        This will compile the 3Dfx Banshee/Voodoo3/VSA-100 frame buffer
        device driver with acceleration functions.
 config FB_3DFX_I2C
        bool "Enable DDC/I2C support"
-        depends on FB_3DFX && EXPERIMENTAL
+        depends on FB_3DFX
        select FB_DDC
        default y
        help
@@ -1714,8 +1714,8 @@ config FB_ARK
          and ICS 5342 RAMDAC.
 config FB_PM3
-        tristate "Permedia3 support (EXPERIMENTAL)"
+        tristate "Permedia3 support"
-        depends on FB && PCI && EXPERIMENTAL
+        depends on FB && PCI
        select FB_CFB_FILLRECT
        select FB_CFB_COPYAREA
        select FB_CFB_IMAGEBLIT
diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
index 345f6660d4b3..c74e7aa46731 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -371,7 +371,7 @@ void backlight_device_unregister(struct backlight_device *bd)
 EXPORT_SYMBOL(backlight_device_unregister);
 #ifdef CONFIG_OF
-static int of_parent_match(struct device *dev, void *data)
+static int of_parent_match(struct device *dev, const void *data)
 {
        return dev->parent && dev->parent->of_node == data;
 }
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index e2c96d01d8f5..bc922c47d046 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -46,7 +46,7 @@ config VGACON_SOFT_SCROLLBACK_SIZE
 config MDA_CONSOLE
        depends on !M68K && !PARISC && ISA
-        tristate "MDA text console (dual-headed) (EXPERIMENTAL)"
+        tristate "MDA text console (dual-headed)"
        ---help---
          Say Y here if you have an old MDA or monochrome Hercules graphics
          adapter in your system acting as a second head ( = video card). You
diff --git a/drivers/video/exynos/exynos_dp_core.c b/drivers/video/exynos/exynos_dp_core.c
index 2d0d144add1b..2ed97769aa6d 100644
--- a/drivers/video/exynos/exynos_dp_core.c
+++ b/drivers/video/exynos/exynos_dp_core.c
@@ -1076,11 +1076,9 @@ static int exynos_dp_probe(struct platform_device *pdev)
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        dp->reg_base = devm_request_and_ioremap(&pdev->dev, res);
+        dp->reg_base = devm_ioremap_resource(&pdev->dev, res);
-        if (!dp->reg_base) {
+        if (IS_ERR(dp->reg_base))
-                dev_err(&pdev->dev, "failed to ioremap\n");
+                return PTR_ERR(dp->reg_base);
-                return -ENOMEM;
-        }
        dp->irq = platform_get_irq(pdev, 0);
        if (dp->irq == -ENXIO) {
diff --git a/drivers/video/geode/Kconfig b/drivers/video/geode/Kconfig
index c5d8ba4b9fc3..21e351a14593 100644
--- a/drivers/video/geode/Kconfig
+++ b/drivers/video/geode/Kconfig
@@ -2,14 +2,14 @@
 # Geode family framebuffer configuration
 #
 config FB_GEODE
-        bool "AMD Geode family framebuffer support (EXPERIMENTAL)"
+        bool "AMD Geode family framebuffer support"
-        depends on FB && PCI && EXPERIMENTAL && X86
+        depends on FB && PCI && X86
        ---help---
          Say 'Y' here to allow you to select framebuffer drivers for
          the AMD Geode family of processors.
 config FB_GEODE_LX
-        tristate "AMD Geode LX framebuffer support (EXPERIMENTAL)"
+        tristate "AMD Geode LX framebuffer support"
        depends on FB && FB_GEODE
        select FB_CFB_FILLRECT
        select FB_CFB_COPYAREA
@@ -24,8 +24,8 @@ config FB_GEODE_LX
          If unsure, say N.
 config FB_GEODE_GX
-        tristate "AMD Geode GX framebuffer support (EXPERIMENTAL)"
+        tristate "AMD Geode GX framebuffer support"
-        depends on FB && FB_GEODE && EXPERIMENTAL
+        depends on FB && FB_GEODE
        select FB_CFB_FILLRECT
        select FB_CFB_COPYAREA
        select FB_CFB_IMAGEBLIT
@@ -39,8 +39,8 @@ config FB_GEODE_GX
          If unsure, say N.
 config FB_GEODE_GX1
-        tristate "AMD Geode GX1 framebuffer support (EXPERIMENTAL)"
+        tristate "AMD Geode GX1 framebuffer support"
-        depends on FB && FB_GEODE && EXPERIMENTAL
+        depends on FB && FB_GEODE
        select FB_CFB_FILLRECT
        select FB_CFB_COPYAREA
        select FB_CFB_IMAGEBLIT
diff --git a/drivers/video/jz4740_fb.c b/drivers/video/jz4740_fb.c
index d999bb5e0485..36979b4131ab 100644
--- a/drivers/video/jz4740_fb.c
+++ b/drivers/video/jz4740_fb.c
@@ -660,9 +660,9 @@ static int jzfb_probe(struct platform_device *pdev)
        }
        mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        jzfb->base = devm_request_and_ioremap(&pdev->dev, mem);
+        jzfb->base = devm_ioremap_resource(&pdev->dev, mem);
-        if (!jzfb->base) {
+        if (IS_ERR(jzfb->base)) {
-                ret = -EBUSY;
+                ret = PTR_ERR(jzfb->base);
                goto err_framebuffer_release;
        }
diff --git a/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig
index b48f95f0dfe2..e512581300fc 100644
--- a/drivers/video/omap/Kconfig
+++ b/drivers/video/omap/Kconfig
@@ -1,5 +1,5 @@
 config FB_OMAP
-        tristate "OMAP frame buffer support (EXPERIMENTAL)"
+        tristate "OMAP frame buffer support"
        depends on FB
        depends on ARCH_OMAP1
        select FB_CFB_FILLRECT
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 769d0828581c..72923645dcce 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -1080,11 +1080,9 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
        }
        /* Base address taken from platform */
-        hdmi.ip_data.base_wp = devm_request_and_ioremap(&pdev->dev, res);
+        hdmi.ip_data.base_wp = devm_ioremap_resource(&pdev->dev, res);
-        if (!hdmi.ip_data.base_wp) {
+        if (IS_ERR(hdmi.ip_data.base_wp))
-                DSSERR("can't ioremap WP\n");
+                return PTR_ERR(hdmi.ip_data.base_wp);
-                return -ENOMEM;
-        }
        r = hdmi_get_clocks(pdev);
        if (r) {
diff --git a/drivers/video/omap2/vrfb.c b/drivers/video/omap2/vrfb.c
index 5d8fdac3b800..10560efeb35a 100644
--- a/drivers/video/omap2/vrfb.c
+++ b/drivers/video/omap2/vrfb.c
@@ -20,6 +20,7 @@
 /*#define DEBUG*/
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/ioport.h>
@@ -357,11 +358,9 @@ static int __init vrfb_probe(struct platform_device *pdev)
                return -EINVAL;
        }
-        vrfb_base = devm_request_and_ioremap(&pdev->dev, mem);
+        vrfb_base = devm_ioremap_resource(&pdev->dev, mem);
-        if (!vrfb_base) {
+        if (IS_ERR(vrfb_base))
-                dev_err(&pdev->dev, "can't ioremap vrfb memory\n");
+                return PTR_ERR(vrfb_base);
-                return -ENOMEM;
-        }
        num_ctxs = pdev->num_resources - 1;
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c
index 9b57a235c9bc..968a62571df7 100644
--- a/drivers/video/s3c-fb.c
+++ b/drivers/video/s3c-fb.c
@@ -1421,10 +1421,9 @@ static int s3c_fb_probe(struct platform_device *pdev)
        pm_runtime_enable(sfb->dev);
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        sfb->regs = devm_request_and_ioremap(dev, res);
+        sfb->regs = devm_ioremap_resource(dev, res);
-        if (!sfb->regs) {
+        if (IS_ERR(sfb->regs)) {
-                dev_err(dev, "failed to map registers\n");
+                ret = PTR_ERR(sfb->regs);
-                ret = -ENXIO;
                goto err_lcd_clk;
        }
diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
index 8d5bddb56cb1..c6683f2e396c 100644
--- a/drivers/virtio/Kconfig
+++ b/drivers/virtio/Kconfig
@@ -8,8 +8,8 @@ config VIRTIO
 menu "Virtio drivers"
 config VIRTIO_PCI
-        tristate "PCI driver for virtio devices (EXPERIMENTAL)"
+        tristate "PCI driver for virtio devices"
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
        select VIRTIO
        ---help---
          This drivers provides support for virtio based paravirtual device
@@ -32,8 +32,8 @@ config VIRTIO_BALLOON
         If unsure, say M.
 config VIRTIO_MMIO
-        tristate "Platform bus driver for memory mapped virtio devices (EXPERIMENTAL)"
+        tristate "Platform bus driver for memory mapped virtio devices"
-        depends on HAS_IOMEM && EXPERIMENTAL
+        depends on HAS_IOMEM
        select VIRTIO
        ---help---
         This drivers provides support for memory mapped virtio
diff --git a/drivers/vlynq/Kconfig b/drivers/vlynq/Kconfig
index d874b4f34136..e01162046598 100644
--- a/drivers/vlynq/Kconfig
+++ b/drivers/vlynq/Kconfig
@@ -1,5 +1,5 @@
 menu "TI VLYNQ"
-        depends on AR7 && EXPERIMENTAL
+        depends on AR7
 config VLYNQ
        bool "TI VLYNQ bus support"
diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index 184dbce4abd1..db2390aed387 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -560,11 +560,9 @@ static int omap_hdq_probe(struct platform_device *pdev)
                return -ENXIO;
        }
-        hdq_data->hdq_base = devm_request_and_ioremap(dev, res);
+        hdq_data->hdq_base = devm_ioremap_resource(dev, res);
-        if (!hdq_data->hdq_base) {
+        if (IS_ERR(hdq_data->hdq_base))
-                dev_dbg(&pdev->dev, "ioremap failed\n");
+                return PTR_ERR(hdq_data->hdq_base);
-                return -ENOMEM;
-        }
        hdq_data->hdq_usecount = 0;
        mutex_init(&hdq_data->hdq_mutex);
diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
index 3003e2a9580b..2f3cc8fb471a 100644
--- a/drivers/watchdog/ar7_wdt.c
+++ b/drivers/watchdog/ar7_wdt.c
@@ -285,11 +285,9 @@ static int ar7_wdt_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        ar7_wdt = devm_request_and_ioremap(&pdev->dev, ar7_regs_wdt);
+        ar7_wdt = devm_ioremap_resource(&pdev->dev, ar7_regs_wdt);
-        if (!ar7_wdt) {
+        if (IS_ERR(ar7_wdt))
-                pr_err("could not ioremap registers\n");
+                return PTR_ERR(ar7_wdt);
-                return -ENXIO;
-        }
        vbus_clk = clk_get(NULL, "vbus");
        if (IS_ERR(vbus_clk)) {
diff --git a/drivers/watchdog/at32ap700x_wdt.c b/drivers/watchdog/at32ap700x_wdt.c
index 2896430ce42c..7a715e3e6828 100644
--- a/drivers/watchdog/at32ap700x_wdt.c
+++ b/drivers/watchdog/at32ap700x_wdt.c
@@ -436,17 +436,7 @@ static struct platform_driver at32_wdt_driver = {
        .shutdown       = at32_wdt_shutdown,
 };
-static int __init at32_wdt_init(void)
+module_platform_driver_probe(at32_wdt_driver, at32_wdt_probe);
-{
-        return platform_driver_probe(&at32_wdt_driver, at32_wdt_probe);
-}
-module_init(at32_wdt_init);
-static void __exit at32_wdt_exit(void)
-{
-        platform_driver_unregister(&at32_wdt_driver);
-}
-module_exit(at32_wdt_exit);
 MODULE_AUTHOR("Hans-Christian Egtvedt <egtvedt@samfundet.no>");
 MODULE_DESCRIPTION("Watchdog driver for Atmel AT32AP700X");
diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
index dc42e44b6bc1..c08933cc565e 100644
--- a/drivers/watchdog/at91sam9_wdt.c
+++ b/drivers/watchdog/at91sam9_wdt.c
@@ -321,18 +321,7 @@ static struct platform_driver at91wdt_driver = {
        },
 };
-static int __init at91sam_wdt_init(void)
+module_platform_driver_probe(at91wdt_driver, at91wdt_probe);
-{
-        return platform_driver_probe(&at91wdt_driver, at91wdt_probe);
-}
-static void __exit at91sam_wdt_exit(void)
-{
-        platform_driver_unregister(&at91wdt_driver);
-}
-module_init(at91sam_wdt_init);
-module_exit(at91sam_wdt_exit);
 MODULE_AUTHOR("Renaud CERRATO <r.cerrato@til-technologies.fr>");
 MODULE_DESCRIPTION("Watchdog driver for Atmel AT91SAM9x processors");
diff --git a/drivers/watchdog/coh901327_wdt.c b/drivers/watchdog/coh901327_wdt.c
index cb5da5c3ece2..b9b8a8be6f12 100644
--- a/drivers/watchdog/coh901327_wdt.c
+++ b/drivers/watchdog/coh901327_wdt.c
@@ -451,17 +451,7 @@ static struct platform_driver coh901327_driver = {
        .resume         = coh901327_resume,
 };
-static int __init coh901327_init(void)
+module_platform_driver_probe(coh901327_driver, coh901327_probe);
-{
-        return platform_driver_probe(&coh901327_driver, coh901327_probe);
-}
-module_init(coh901327_init);
-static void __exit coh901327_exit(void)
-{
-        platform_driver_unregister(&coh901327_driver);
-}
-module_exit(coh901327_exit);
 MODULE_AUTHOR("Linus Walleij <linus.walleij@stericsson.com>");
 MODULE_DESCRIPTION("COH 901 327 Watchdog");
diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index a0eba3c40e25..203766989382 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -301,9 +301,9 @@ static int dw_wdt_drv_probe(struct platform_device *pdev)
        if (!mem)
                return -EINVAL;
-        dw_wdt.regs = devm_request_and_ioremap(&pdev->dev, mem);
+        dw_wdt.regs = devm_ioremap_resource(&pdev->dev, mem);
-        if (!dw_wdt.regs)
+        if (IS_ERR(dw_wdt.regs))
-                return -ENOMEM;
+                return PTR_ERR(dw_wdt.regs);
        dw_wdt.clk = clk_get(&pdev->dev, NULL);
        if (IS_ERR(dw_wdt.clk))
diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c
index 9a45d0294cf4..ff908823688c 100644
--- a/drivers/watchdog/imx2_wdt.c
+++ b/drivers/watchdog/imx2_wdt.c
@@ -262,11 +262,9 @@ static int __init imx2_wdt_probe(struct platform_device *pdev)
                return -ENODEV;
        }
-        imx2_wdt.base = devm_request_and_ioremap(&pdev->dev, res);
+        imx2_wdt.base = devm_ioremap_resource(&pdev->dev, res);
-        if (!imx2_wdt.base) {
+        if (IS_ERR(imx2_wdt.base))
-                dev_err(&pdev->dev, "ioremap failed\n");
+                return PTR_ERR(imx2_wdt.base);
-                return -ENOMEM;
-        }
        imx2_wdt.clk = clk_get(&pdev->dev, NULL);
        if (IS_ERR(imx2_wdt.clk)) {
@@ -342,17 +340,7 @@ static struct platform_driver imx2_wdt_driver = {
        },
 };
-static int __init imx2_wdt_init(void)
+module_platform_driver_probe(imx2_wdt_driver, imx2_wdt_probe);
-{
-        return platform_driver_probe(&imx2_wdt_driver, imx2_wdt_probe);
-}
-module_init(imx2_wdt_init);
-static void __exit imx2_wdt_exit(void)
-{
-        platform_driver_unregister(&imx2_wdt_driver);
-}
-module_exit(imx2_wdt_exit);
 MODULE_AUTHOR("Wolfram Sang");
 MODULE_DESCRIPTION("Watchdog driver for IMX2 and later");
diff --git a/drivers/watchdog/jz4740_wdt.c b/drivers/watchdog/jz4740_wdt.c
index a61408fa0c94..1cb25f69a96d 100644
--- a/drivers/watchdog/jz4740_wdt.c
+++ b/drivers/watchdog/jz4740_wdt.c
@@ -171,9 +171,9 @@ static int jz4740_wdt_probe(struct platform_device *pdev)
        watchdog_set_drvdata(jz4740_wdt, drvdata);
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        drvdata->base = devm_request_and_ioremap(&pdev->dev, res);
+        drvdata->base = devm_ioremap_resource(&pdev->dev, res);
-        if (drvdata->base == NULL) {
+        if (IS_ERR(drvdata->base)) {
-                ret = -EBUSY;
+                ret = PTR_ERR(drvdata->base);
                goto err_out;
        }
diff --git a/drivers/watchdog/lantiq_wdt.c b/drivers/watchdog/lantiq_wdt.c
index 79fe01b42339..088fd0c9d888 100644
--- a/drivers/watchdog/lantiq_wdt.c
+++ b/drivers/watchdog/lantiq_wdt.c
@@ -197,11 +197,9 @@ ltq_wdt_probe(struct platform_device *pdev)
                return -ENOENT;
        }
-        ltq_wdt_membase = devm_request_and_ioremap(&pdev->dev, res);
+        ltq_wdt_membase = devm_ioremap_resource(&pdev->dev, res);
-        if (!ltq_wdt_membase) {
+        if (IS_ERR(ltq_wdt_membase))
-                dev_err(&pdev->dev, "cannot remap I/O memory region\n");
+                return PTR_ERR(ltq_wdt_membase);
-                return -ENOMEM;
-        }
        /* we do not need to enable the clock as it is always running */
        clk = clk_get_io();
diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c
index 773c661723ca..cc9d328086ed 100644
--- a/drivers/watchdog/max63xx_wdt.c
+++ b/drivers/watchdog/max63xx_wdt.c
@@ -14,6 +14,7 @@
 * another interface, some abstraction will have to be introduced.
 */
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/types.h>
@@ -198,9 +199,9 @@ static int max63xx_wdt_probe(struct platform_device *pdev)
        heartbeat = current_timeout->twd;
        wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        wdt_base = devm_request_and_ioremap(&pdev->dev, wdt_mem);
+        wdt_base = devm_ioremap_resource(&pdev->dev, wdt_mem);
-        if (!wdt_base)
+        if (IS_ERR(wdt_base))
-                return -ENOMEM;
+                return PTR_ERR(wdt_base);
        max63xx_wdt_dev.timeout = heartbeat;
        watchdog_set_nowayout(&max63xx_wdt_dev, nowayout);
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index dcba5dab6c29..de1f3fa1d787 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -155,9 +155,9 @@ static int pnx4008_wdt_probe(struct platform_device *pdev)
                heartbeat = DEFAULT_HEARTBEAT;
        r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        wdt_base = devm_request_and_ioremap(&pdev->dev, r);
+        wdt_base = devm_ioremap_resource(&pdev->dev, r);
-        if (!wdt_base)
+        if (IS_ERR(wdt_base))
-                return -EADDRINUSE;
+                return PTR_ERR(wdt_base);
        wdt_clk = clk_get(&pdev->dev, NULL);
        if (IS_ERR(wdt_clk))
diff --git a/drivers/watchdog/txx9wdt.c b/drivers/watchdog/txx9wdt.c
index 98e16373e640..88f23c5cfddb 100644
--- a/drivers/watchdog/txx9wdt.c
+++ b/drivers/watchdog/txx9wdt.c
@@ -121,9 +121,9 @@ static int __init txx9wdt_probe(struct platform_device *dev)
        }
        res = platform_get_resource(dev, IORESOURCE_MEM, 0);
-        txx9wdt_reg = devm_request_and_ioremap(&dev->dev, res);
+        txx9wdt_reg = devm_ioremap_resource(&dev->dev, res);
-        if (!txx9wdt_reg) {
+        if (IS_ERR(txx9wdt_reg)) {
-                ret = -EBUSY;
+                ret = PTR_ERR(txx9wdt_reg);
                goto exit;
        }
@@ -172,18 +172,7 @@ static struct platform_driver txx9wdt_driver = {
        },
 };
-static int __init watchdog_init(void)
+module_platform_driver_probe(txx9wdt_driver, txx9wdt_probe);
-{
-        return platform_driver_probe(&txx9wdt_driver, txx9wdt_probe);
-}
-static void __exit watchdog_exit(void)
-{
-        platform_driver_unregister(&txx9wdt_driver);
-}
-module_init(watchdog_init);
-module_exit(watchdog_exit);
 MODULE_DESCRIPTION("TXx9 Watchdog Driver");
 MODULE_LICENSE("GPL");
diff --git a/fs/9p/Kconfig b/fs/9p/Kconfig
index 0a93dc1cb4ac..55abfd62654a 100644
--- a/fs/9p/Kconfig
+++ b/fs/9p/Kconfig
@@ -11,8 +11,7 @@ config 9P_FS
 if 9P_FS
 config 9P_FSCACHE
-        bool "Enable 9P client caching support (EXPERIMENTAL)"
+        bool "Enable 9P client caching support"
-        depends on EXPERIMENTAL
        depends on 9P_FS=m && FSCACHE || 9P_FS=y && FSCACHE=y
        help
          Choose Y here to enable persistent, read-only local
diff --git a/fs/adfs/Kconfig b/fs/adfs/Kconfig
index e55182a74605..c5a7787dd5e9 100644
--- a/fs/adfs/Kconfig
+++ b/fs/adfs/Kconfig
@@ -1,6 +1,6 @@
 config ADFS_FS
-        tristate "ADFS file system support (EXPERIMENTAL)"
+        tristate "ADFS file system support"
-        depends on BLOCK && EXPERIMENTAL
+        depends on BLOCK
        help
          The Acorn Disc Filing System is the standard file system of the
          RiscOS operating system which runs on Acorn's ARM-based Risc PC
diff --git a/fs/affs/Kconfig b/fs/affs/Kconfig
index cfad9afb4762..a04d9e848d05 100644
--- a/fs/affs/Kconfig
+++ b/fs/affs/Kconfig
@@ -1,6 +1,6 @@
 config AFFS_FS
-        tristate "Amiga FFS file system support (EXPERIMENTAL)"
+        tristate "Amiga FFS file system support"
-        depends on BLOCK && EXPERIMENTAL
+        depends on BLOCK
        help
          The Fast File System (FFS) is the common file system used on hard
          disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20).  Say Y
diff --git a/fs/afs/Kconfig b/fs/afs/Kconfig
index 8f975f25b486..ebba3b18e5da 100644
--- a/fs/afs/Kconfig
+++ b/fs/afs/Kconfig
@@ -1,6 +1,6 @@
 config AFS_FS
-        tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
+        tristate "Andrew File System support (AFS)"
-        depends on INET && EXPERIMENTAL
+        depends on INET
        select AF_RXRPC
        select DNS_RESOLVER
        help
@@ -22,8 +22,7 @@ config AFS_DEBUG
          If unsure, say N.
 config AFS_FSCACHE
-        bool "Provide AFS client caching support (EXPERIMENTAL)"
+        bool "Provide AFS client caching support"
-        depends on EXPERIMENTAL
        depends on AFS_FS=m && FSCACHE || AFS_FS=y && FSCACHE=y
        help
          Say Y here if you want AFS data to be cached locally on disk through
diff --git a/fs/befs/Kconfig b/fs/befs/Kconfig
index 7835d30f211f..edc5cc2aefad 100644
--- a/fs/befs/Kconfig
+++ b/fs/befs/Kconfig
@@ -1,6 +1,6 @@
 config BEFS_FS
-        tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
+        tristate "BeOS file system (BeFS) support (read only)"
-        depends on BLOCK && EXPERIMENTAL
+        depends on BLOCK
        select NLS
        help
          The BeOS File System (BeFS) is the native file system of Be, Inc's
diff --git a/fs/bfs/Kconfig b/fs/bfs/Kconfig
index c2336c62024f..3728a6479c64 100644
--- a/fs/bfs/Kconfig
+++ b/fs/bfs/Kconfig
@@ -1,6 +1,6 @@
 config BFS_FS
-        tristate "BFS file system support (EXPERIMENTAL)"
+        tristate "BFS file system support"
-        depends on BLOCK && EXPERIMENTAL
+        depends on BLOCK
        help
          Boot File System (BFS) is a file system used under SCO UnixWare to
          allow the bootloader access to the kernel image and other important
diff --git a/fs/btrfs/Kconfig b/fs/btrfs/Kconfig
index d33f01c08b60..ccd25ba7a9ac 100644
--- a/fs/btrfs/Kconfig
+++ b/fs/btrfs/Kconfig
@@ -1,6 +1,5 @@
 config BTRFS_FS
-        tristate "Btrfs filesystem (EXPERIMENTAL) Unstable disk format"
+        tristate "Btrfs filesystem Unstable disk format"
-        depends on EXPERIMENTAL
        select LIBCRC32C
        select ZLIB_INFLATE
        select ZLIB_DEFLATE
diff --git a/fs/ceph/Kconfig b/fs/ceph/Kconfig
index 9eb134ea6eb2..49bc78243db9 100644
--- a/fs/ceph/Kconfig
+++ b/fs/ceph/Kconfig
@@ -1,6 +1,6 @@
 config CEPH_FS
-        tristate "Ceph distributed file system (EXPERIMENTAL)"
+        tristate "Ceph distributed file system"
-        depends on INET && EXPERIMENTAL
+        depends on INET
        select CEPH_LIB
        select LIBCRC32C
        select CRYPTO_AES
diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
index 21ff76c22a17..2906ee276408 100644
--- a/fs/cifs/Kconfig
+++ b/fs/cifs/Kconfig
@@ -155,14 +155,14 @@ config CIFS_DFS_UPCALL
            points. If unsure, say N.
 config CIFS_NFSD_EXPORT
-          bool "Allow nfsd to export CIFS file system (EXPERIMENTAL)"
+          bool "Allow nfsd to export CIFS file system"
-          depends on CIFS && EXPERIMENTAL && BROKEN
+          depends on CIFS && BROKEN
          help
           Allows NFS server to export a CIFS mounted share (nfsd over cifs)
 config CIFS_SMB2
-        bool "SMB2 network file system support (EXPERIMENTAL)"
+        bool "SMB2 network file system support"
-        depends on CIFS && EXPERIMENTAL && INET
+        depends on CIFS && INET
        select NLS
        select KEYS
        select FSCACHE
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index a5f12b7e228d..0c4f80b447fb 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -322,7 +322,6 @@ static struct dentry *__create_file(const char *name, umode_t mode,
        if (!parent)
                parent = debugfs_mount->mnt_root;
-        dentry = NULL;
        mutex_lock(&parent->d_inode->i_mutex);
        dentry = lookup_one_len(name, parent, strlen(name));
        if (!IS_ERR(dentry)) {
diff --git a/fs/ecryptfs/Kconfig b/fs/ecryptfs/Kconfig
index cc16562654de..e15ef38c24fa 100644
--- a/fs/ecryptfs/Kconfig
+++ b/fs/ecryptfs/Kconfig
@@ -1,6 +1,6 @@
 config ECRYPT_FS
-        tristate "eCrypt filesystem layer support (EXPERIMENTAL)"
+        tristate "eCrypt filesystem layer support"
-        depends on EXPERIMENTAL && KEYS && CRYPTO && (ENCRYPTED_KEYS || ENCRYPTED_KEYS=n)
+        depends on KEYS && CRYPTO && (ENCRYPTED_KEYS || ENCRYPTED_KEYS=n)
        select CRYPTO_ECB
        select CRYPTO_CBC
        select CRYPTO_MD5
diff --git a/fs/efs/Kconfig b/fs/efs/Kconfig
index 6ebfc1c207a8..d020e3c30fea 100644
--- a/fs/efs/Kconfig
+++ b/fs/efs/Kconfig
@@ -1,6 +1,6 @@
 config EFS_FS
-        tristate "EFS file system support (read only) (EXPERIMENTAL)"
+        tristate "EFS file system support (read only)"
-        depends on BLOCK && EXPERIMENTAL
+        depends on BLOCK
        help
          EFS is an older file system used for non-ISO9660 CD-ROMs and hard
          disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
diff --git a/fs/hfs/Kconfig b/fs/hfs/Kconfig
index b77c5bc20f8a..998e3a6decf3 100644
--- a/fs/hfs/Kconfig
+++ b/fs/hfs/Kconfig
@@ -1,6 +1,6 @@
 config HFS_FS
-        tristate "Apple Macintosh file system support (EXPERIMENTAL)"
+        tristate "Apple Macintosh file system support"
-        depends on BLOCK && EXPERIMENTAL
+        depends on BLOCK
        select NLS
        help
          If you say Y here, you will be able to mount Macintosh-formatted
diff --git a/fs/jffs2/Kconfig b/fs/jffs2/Kconfig
index 6ae169cd8faa..d8bb6c411e96 100644
--- a/fs/jffs2/Kconfig
+++ b/fs/jffs2/Kconfig
@@ -50,8 +50,8 @@ config JFFS2_FS_WBUF_VERIFY
          write-buffer, and check for errors.
 config JFFS2_SUMMARY
-        bool "JFFS2 summary support (EXPERIMENTAL)"
+        bool "JFFS2 summary support"
-        depends on JFFS2_FS && EXPERIMENTAL
+        depends on JFFS2_FS
        default n
        help
          This feature makes it possible to use summary information
@@ -63,8 +63,8 @@ config JFFS2_SUMMARY
          If unsure, say 'N'.
 config JFFS2_FS_XATTR
-        bool "JFFS2 XATTR support (EXPERIMENTAL)"
+        bool "JFFS2 XATTR support"
-        depends on JFFS2_FS && EXPERIMENTAL
+        depends on JFFS2_FS
        default n
        help
          Extended attributes are name:value pairs associated with inodes by
@@ -173,7 +173,7 @@ config JFFS2_CMODE_PRIORITY
          successful one.
 config JFFS2_CMODE_SIZE
-        bool "size (EXPERIMENTAL)"
+        bool "size"
        help
          Tries all compressors and chooses the one which has the smallest
          result.
diff --git a/fs/logfs/Kconfig b/fs/logfs/Kconfig
index daf9a9b32dd3..09ed066c0221 100644
--- a/fs/logfs/Kconfig
+++ b/fs/logfs/Kconfig
@@ -1,6 +1,6 @@
 config LOGFS
-        tristate "LogFS file system (EXPERIMENTAL)"
+        tristate "LogFS file system"
-        depends on (MTD || BLOCK) && EXPERIMENTAL
+        depends on (MTD || BLOCK)
        select ZLIB_INFLATE
        select ZLIB_DEFLATE
        select CRC32
diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
index 8df1ea4a6ff9..430b6872806f 100644
--- a/fs/nfsd/Kconfig
+++ b/fs/nfsd/Kconfig
@@ -65,8 +65,8 @@ config NFSD_V3_ACL
          If unsure, say N.
 config NFSD_V4
-        bool "NFS server support for NFS version 4 (EXPERIMENTAL)"
+        bool "NFS server support for NFS version 4"
-        depends on NFSD && PROC_FS && EXPERIMENTAL
+        depends on NFSD && PROC_FS
        select NFSD_V3
        select FS_POSIX_ACL
        select SUNRPC_GSS
diff --git a/fs/nilfs2/Kconfig b/fs/nilfs2/Kconfig
index 251da07b2a1d..80da8eb27393 100644
--- a/fs/nilfs2/Kconfig
+++ b/fs/nilfs2/Kconfig
@@ -1,6 +1,5 @@
 config NILFS2_FS
-        tristate "NILFS2 file system support (EXPERIMENTAL)"
+        tristate "NILFS2 file system support"
-        depends on EXPERIMENTAL
        select CRC32
        help
          NILFS2 is a log-structured file system (LFS) supporting continuous
diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index db940a9be045..8d924b5ec733 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -10,7 +10,7 @@
 * Please see Documentation/filesystems/sysfs.txt for more information.
 */
-#define DEBUG 
+#define DEBUG
 #include <linux/fs.h>
 #include <linux/mount.h>
diff --git a/fs/ufs/Kconfig b/fs/ufs/Kconfig
index e4f10a40768a..0bf6e16f8d79 100644
--- a/fs/ufs/Kconfig
+++ b/fs/ufs/Kconfig
@@ -29,7 +29,7 @@ config UFS_FS
 config UFS_FS_WRITE
        bool "UFS file system write support (DANGEROUS)"
-        depends on UFS_FS && EXPERIMENTAL
+        depends on UFS_FS
        help
          Say Y here if you want to try writing to UFS partitions. This is
          experimental, so you should back up your UFS partitions beforehand.
diff --git a/fs/xfs/Kconfig b/fs/xfs/Kconfig
index 5a7ffe54f5d5..cc33aaf219f1 100644
--- a/fs/xfs/Kconfig
+++ b/fs/xfs/Kconfig
@@ -70,8 +70,8 @@ config XFS_RT
          If unsure, say N.
 config XFS_DEBUG
-        bool "XFS Debugging support (EXPERIMENTAL)"
+        bool "XFS Debugging support"
-        depends on XFS_FS && EXPERIMENTAL
+        depends on XFS_FS
        help
          Say Y here to get an XFS build with many debugging features,
          including ASSERT checks, function wrappers around macros,
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 66c434f5dd1e..63f2465807d4 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -33,7 +33,7 @@ struct debugfs_reg32 {
 };
 struct debugfs_regset32 {
-        struct debugfs_reg32 *regs;
+        const struct debugfs_reg32 *regs;
        int nregs;
        void __iomem *base;
 };
diff --git a/include/linux/device.h b/include/linux/device.h
index 001f6637aa47..9d6464ea99c6 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -396,8 +396,8 @@ extern int class_for_each_device(struct class *class, struct device *start,
                                 void *data,
                                 int (*fn)(struct device *dev, void *data));
 extern struct device *class_find_device(struct class *class,
-                                        struct device *start, void *data,
+                                        struct device *start, const void *data,
-                                        int (*match)(struct device *, void *));
+                                        int (*match)(struct device *, const void *));
 struct class_attribute {
        struct attribute attr;
@@ -574,6 +574,7 @@ extern int devres_release_group(struct device *dev, void *id);
 extern void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp);
 extern void devm_kfree(struct device *dev, void *p);
+void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res);
 void __iomem *devm_request_and_ioremap(struct device *dev,
                        struct resource *res);
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 6dd4787a798a..2fe93b26b42f 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -95,6 +95,17 @@ do {								\
                                     ##__VA_ARGS__);            \
 } while (0)
+#define dynamic_hex_dump(prefix_str, prefix_type, rowsize,      \
+                         groupsize, buf, len, ascii)            \
+do {                                                            \
+        DEFINE_DYNAMIC_DEBUG_METADATA(descriptor,               \
+                __builtin_constant_p(prefix_str) ? prefix_str : "hexdump");\
+        if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT))  \
+                print_hex_dump(KERN_DEBUG, prefix_str,          \
+                               prefix_type, rowsize, groupsize, \
+                               buf, len, ascii);                \
+} while (0)
 #else
 #include <linux/string.h>
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index a9ded9a3c175..c082c71f7225 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -204,6 +204,24 @@ static inline void platform_set_drvdata(struct platform_device *pdev, void *data
        module_driver(__platform_driver, platform_driver_register, \
                        platform_driver_unregister)
+/* module_platform_driver_probe() - Helper macro for drivers that don't do
+ * anything special in module init/exit.  This eliminates a lot of
+ * boilerplate.  Each module may only use this macro once, and
+ * calling it replaces module_init() and module_exit()
+ */
+#define module_platform_driver_probe(__platform_driver, __platform_probe) \
+static int __init __platform_driver##_init(void) \
+{ \
+        return platform_driver_probe(&(__platform_driver), \
+                                     __platform_probe);    \
+} \
+module_init(__platform_driver##_init); \
+static void __exit __platform_driver##_exit(void) \
+{ \
+        platform_driver_unregister(&(__platform_driver)); \
+} \
+module_exit(__platform_driver##_exit);
 extern struct platform_device *platform_create_bundle(struct platform_driver *driver,
                                        int (*probe)(struct platform_device *),
                                        struct resource *res, unsigned int n_res,
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 25c0982eb9b1..002a99f96331 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -226,7 +226,7 @@ struct power_supply_info {
        int use_for_apm;
 };
-extern struct power_supply *power_supply_get_by_name(char *name);
+extern struct power_supply *power_supply_get_by_name(const char *name);
 extern void power_supply_changed(struct power_supply *psy);
 extern int power_supply_am_i_supplied(struct power_supply *psy);
 extern int power_supply_set_battery_charged(struct power_supply *psy);
diff --git a/include/linux/printk.h b/include/linux/printk.h
index 86c4b6294713..5bef3045218e 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -318,8 +318,13 @@ extern void hex_dump_to_buffer(const void *buf, size_t len,
 extern void print_hex_dump(const char *level, const char *prefix_str,
                           int prefix_type, int rowsize, int groupsize,
                           const void *buf, size_t len, bool ascii);
+#if defined(CONFIG_DYNAMIC_DEBUG)
+#define print_hex_dump_bytes(prefix_str, prefix_type, buf, len) \
+        dynamic_hex_dump(prefix_str, prefix_type, 16, 1, buf, len, true)
+#else
 extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
                                 const void *buf, size_t len);
+#endif /* defined(CONFIG_DYNAMIC_DEBUG) */
 #else
 static inline void print_hex_dump(const char *level, const char *prefix_str,
                                  int prefix_type, int rowsize, int groupsize,
@@ -333,4 +338,16 @@ static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
 #endif
+#if defined(CONFIG_DYNAMIC_DEBUG)
+#define print_hex_dump_debug(prefix_str, prefix_type, rowsize,  \
+                             groupsize, buf, len, ascii)        \
+        dynamic_hex_dump(prefix_str, prefix_type, rowsize,      \
+                         groupsize, buf, len, ascii)
+#else
+#define print_hex_dump_debug(prefix_str, prefix_type, rowsize,          \
+                             groupsize, buf, len, ascii)                \
+        print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize,    \
+                       groupsize, buf, len, ascii)
+#endif /* defined(CONFIG_DYNAMIC_DEBUG) */
 #endif
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index 11d05f9fe8b6..580b24c8b8ca 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -149,7 +149,7 @@ extern int rtc_initialize_alarm(struct rtc_device *rtc,
 extern void rtc_update_irq(struct rtc_device *rtc,
                        unsigned long num, unsigned long events);
-extern struct rtc_device *rtc_class_open(char *name);
+extern struct rtc_device *rtc_class_open(const char *name);
 extern void rtc_class_close(struct rtc_device *rtc);
 extern int rtc_irq_register(struct rtc_device *rtc,
diff --git a/init/Kconfig b/init/Kconfig
index 7000d9657402..335a1f680c91 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -29,35 +29,8 @@ config BUILDTIME_EXTABLE_SORT
 menu "General setup"
 config EXPERIMENTAL
-        bool "Prompt for development and/or incomplete code/drivers"
+        bool
-        ---help---
+        default y
-          Some of the various things that Linux supports (such as network
-          drivers, file systems, network protocols, etc.) can be in a state
-          of development where the functionality, stability, or the level of
-          testing is not yet high enough for general use. This is usually
-          known as the "alpha-test" phase among developers. If a feature is
-          currently in alpha-test, then the developers usually discourage
-          uninformed widespread use of this feature by the general public to
-          avoid "Why doesn't this work?" type mail messages. However, active
-          testing and use of these systems is welcomed. Just be aware that it
-          may not meet the normal level of reliability or it may fail to work
-          in some special cases. Detailed bug reports from people familiar
-          with the kernel internals are usually welcomed by the developers
-          (before submitting bug reports, please read the documents
-          <file:README>, <file:MAINTAINERS>, <file:REPORTING-BUGS>,
-          <file:Documentation/BUG-HUNTING>, and
-          <file:Documentation/oops-tracing.txt> in the kernel source).
-          This option will also make obsoleted drivers available. These are
-          drivers that have been replaced by something else, and/or are
-          scheduled to be removed in a future kernel release.
-          Unless you intend to help test and develop a feature or driver that
-          falls into this category, or you have a situation that requires
-          using these features, you should probably say N here, which will
-          cause the configurator to present you with fewer choices. If
-          you say Y here, you will be offered the choice of using features or
-          drivers that are currently considered to be in the alpha-test phase.
 config BROKEN
        bool
@@ -243,7 +216,7 @@ config SYSVIPC_SYSCTL
 config POSIX_MQUEUE
        bool "POSIX Message Queues"
-        depends on NET && EXPERIMENTAL
+        depends on NET
        ---help---
          POSIX variant of message queues is a part of IPC. In POSIX message
          queues every message has a priority which decides about succession
@@ -410,7 +383,7 @@ config BSD_PROCESS_ACCT_V3
          at <http://www.gnu.org/software/acct/>.
 config TASKSTATS
-        bool "Export task/process statistics through netlink (EXPERIMENTAL)"
+        bool "Export task/process statistics through netlink"
        depends on NET
        default n
        help
@@ -423,7 +396,7 @@ config TASKSTATS
          Say N if unsure.
 config TASK_DELAY_ACCT
-        bool "Enable per-task delay accounting (EXPERIMENTAL)"
+        bool "Enable per-task delay accounting"
        depends on TASKSTATS
        help
          Collect information on time spent by a task waiting for system
@@ -434,7 +407,7 @@ config TASK_DELAY_ACCT
          Say N if unsure.
 config TASK_XACCT
-        bool "Enable extended accounting over taskstats (EXPERIMENTAL)"
+        bool "Enable extended accounting over taskstats"
        depends on TASKSTATS
        help
          Collect extended task accounting data and send the data
@@ -443,7 +416,7 @@ config TASK_XACCT
          Say N if unsure.
 config TASK_IO_ACCOUNTING
-        bool "Enable per-task storage I/O accounting (EXPERIMENTAL)"
+        bool "Enable per-task storage I/O accounting"
        depends on TASK_XACCT
        help
          Collect information on the number of bytes of storage I/O which this
@@ -907,8 +880,8 @@ config MEMCG_SWAP_ENABLED
          select this option (if, for some reason, they need to disable it
          then swapaccount=0 does the trick).
 config MEMCG_KMEM
-        bool "Memory Resource Controller Kernel Memory accounting (EXPERIMENTAL)"
+        bool "Memory Resource Controller Kernel Memory accounting"
-        depends on MEMCG && EXPERIMENTAL
+        depends on MEMCG
        depends on SLUB || SLAB
        help
          The Kernel Memory extension for Memory Resource Controller can limit
@@ -920,7 +893,7 @@ config MEMCG_KMEM
 config CGROUP_HUGETLB
        bool "HugeTLB Resource Controller for Control Groups"
-        depends on RESOURCE_COUNTERS && HUGETLB_PAGE && EXPERIMENTAL
+        depends on RESOURCE_COUNTERS && HUGETLB_PAGE
        default n
        help
          Provides a cgroup Resource Controller for HugeTLB pages.
@@ -959,7 +932,6 @@ config FAIR_GROUP_SCHED
 config CFS_BANDWIDTH
        bool "CPU bandwidth provisioning for FAIR_GROUP_SCHED"
-        depends on EXPERIMENTAL
        depends on FAIR_GROUP_SCHED
        default n
        help
@@ -971,7 +943,6 @@ config CFS_BANDWIDTH
 config RT_GROUP_SCHED
        bool "Group scheduling for SCHED_RR/FIFO"
-        depends on EXPERIMENTAL
        depends on CGROUP_SCHED
        default n
        help
@@ -1053,8 +1024,7 @@ config IPC_NS
          different IPC objects in different namespaces.
 config USER_NS
-        bool "User namespace (EXPERIMENTAL)"
+        bool "User namespace"
-        depends on EXPERIMENTAL
        depends on UIDGID_CONVERTED
        select UIDGID_STRICT_TYPE_CHECKS
@@ -1636,7 +1606,7 @@ config MODULE_UNLOAD
 config MODULE_FORCE_UNLOAD
        bool "Forced module unloading"
-        depends on MODULE_UNLOAD && EXPERIMENTAL
+        depends on MODULE_UNLOAD
        help
          This option allows you to force a module to unload, even if the
          kernel believes it is unsafe: the kernel will remove the module
diff --git a/init/do_mounts.c b/init/do_mounts.c
index 1d1b6348f903..a2b49f2c1bd8 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -81,9 +81,9 @@ struct uuidcmp {
 *
 * Returns 1 if the device matches, and 0 otherwise.
 */
-static int match_dev_by_uuid(struct device *dev, void *data)
+static int match_dev_by_uuid(struct device *dev, const void *data)
 {
-        struct uuidcmp *cmp = data;
+        const struct uuidcmp *cmp = data;
        struct hd_struct *part = dev_to_part(dev);
        if (!part->info)
diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig
index a92028196cc1..d4da55d1fb65 100644
--- a/kernel/gcov/Kconfig
+++ b/kernel/gcov/Kconfig
@@ -35,7 +35,7 @@ config GCOV_KERNEL
 config GCOV_PROFILE_ALL
        bool "Profile entire Kernel"
        depends on GCOV_KERNEL
-        depends on SUPERH || S390 || X86 || (PPC && EXPERIMENTAL) || MICROBLAZE
+        depends on SUPERH || S390 || X86 || PPC || MICROBLAZE
        default n
        ---help---
        This options activates profiling for the entire kernel.
diff --git a/kernel/power/suspend_test.c b/kernel/power/suspend_test.c
index 25596e450ac7..9b2a1d58558d 100644
--- a/kernel/power/suspend_test.c
+++ b/kernel/power/suspend_test.c
@@ -112,7 +112,7 @@ static void __init test_wakealarm(struct rtc_device *rtc, suspend_state_t state)
        rtc_set_alarm(rtc, &alm);
 }
-static int __init has_wakealarm(struct device *dev, void *name_ptr)
+static int __init has_wakealarm(struct device *dev, const void *data)
 {
        struct rtc_device *candidate = to_rtc_device(dev);
@@ -121,7 +121,6 @@ static int __init has_wakealarm(struct device *dev, void *name_ptr)
        if (!device_may_wakeup(candidate->dev.parent))
                return 0;
-        *(const char **)name_ptr = dev_name(dev);
        return 1;
 }
@@ -159,8 +158,8 @@ static int __init test_suspend(void)
        static char             warn_no_rtc[] __initdata =
                KERN_WARNING "PM: no wakealarm-capable RTC driver is ready\n";
-        char                    *pony = NULL;
        struct rtc_device       *rtc = NULL;
+        struct device           *dev;
        /* PM is initialized by now; is that state testable? */
        if (test_state == PM_SUSPEND_ON)
@@ -171,9 +170,9 @@ static int __init test_suspend(void)
        }
        /* RTCs have initialized by now too ... can we use one? */
-        class_find_device(rtc_class, NULL, &pony, has_wakealarm);
+        dev = class_find_device(rtc_class, NULL, NULL, has_wakealarm);
-        if (pony)
+        if (dev)
-                rtc = rtc_class_open(pony);
+                rtc = rtc_class_open(dev_name(dev));
        if (!rtc) {
                printk(warn_no_rtc);
                goto done;
diff --git a/lib/Kconfig b/lib/Kconfig
index 75cdb77fa49d..3958dc4389f9 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -322,7 +322,7 @@ config CPUMASK_OFFSTACK
 config DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
       bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS
-       depends on EXPERIMENTAL && BROKEN
+       depends on BROKEN
 config CPU_RMAP
        bool
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index a1714c897e3f..bb8d9b136cf9 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -455,7 +455,7 @@ config HAVE_DEBUG_KMEMLEAK
 config DEBUG_KMEMLEAK
        bool "Kernel memory leak detector"
-        depends on DEBUG_KERNEL && EXPERIMENTAL && HAVE_DEBUG_KMEMLEAK
+        depends on DEBUG_KERNEL && HAVE_DEBUG_KMEMLEAK
        select DEBUG_FS
        select STACKTRACE if STACKTRACE_SUPPORT
        select KALLSYMS
diff --git a/lib/Kconfig.kgdb b/lib/Kconfig.kgdb
index 43cb93fa2651..77439eb8528d 100644
--- a/lib/Kconfig.kgdb
+++ b/lib/Kconfig.kgdb
@@ -5,7 +5,7 @@ config HAVE_ARCH_KGDB
 menuconfig KGDB
        bool "KGDB: kernel debugger"
        depends on HAVE_ARCH_KGDB
-        depends on DEBUG_KERNEL && EXPERIMENTAL
+        depends on DEBUG_KERNEL
        help
          If you say Y here, it will be possible to remotely debug the
          kernel using gdb.  It is recommended but not required, that
diff --git a/lib/devres.c b/lib/devres.c
index 80b9c76d436a..88ad75952a76 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -1,3 +1,4 @@
+#include <linux/err.h>
 #include <linux/pci.h>
 #include <linux/io.h>
 #include <linux/gfp.h>
@@ -86,22 +87,24 @@ void devm_iounmap(struct device *dev, void __iomem *addr)
 EXPORT_SYMBOL(devm_iounmap);
 /**
- * devm_request_and_ioremap() - Check, request region, and ioremap resource
+ * devm_ioremap_resource() - check, request region, and ioremap resource
- * @dev: Generic device to handle the resource for
+ * @dev: generic device to handle the resource for
 * @res: resource to be handled
 *
- * Takes all necessary steps to ioremap a mem resource. Uses managed device, so
+ * Checks that a resource is a valid memory region, requests the memory region
- * everything is undone on driver detach. Checks arguments, so you can feed
+ * and ioremaps it either as cacheable or as non-cacheable memory depending on
- * it the result from e.g. platform_get_resource() directly. Returns the
+ * the resource's flags. All operations are managed and will be undone on
- * remapped pointer or NULL on error. Usage example:
+ * driver detach.
+ *
+ * Returns a pointer to the remapped memory or an ERR_PTR() encoded error code
+ * on failure. Usage example:
 *
 *      res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- *      base = devm_request_and_ioremap(&pdev->dev, res);
+ *      base = devm_ioremap_resource(&pdev->dev, res);
- *      if (!base)
+ *      if (IS_ERR(base))
- *              return -EADDRNOTAVAIL;
+ *              return PTR_ERR(base);
 */
-void __iomem *devm_request_and_ioremap(struct device *dev,
+void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res)
-                        struct resource *res)
 {
        resource_size_t size;
        const char *name;
@@ -111,7 +114,7 @@ void __iomem *devm_request_and_ioremap(struct device *dev,
        if (!res || resource_type(res) != IORESOURCE_MEM) {
                dev_err(dev, "invalid resource\n");
-                return NULL;
+                return ERR_PTR(-EINVAL);
        }
        size = resource_size(res);
@@ -119,7 +122,7 @@ void __iomem *devm_request_and_ioremap(struct device *dev,
        if (!devm_request_mem_region(dev, res->start, size, name)) {
                dev_err(dev, "can't request region for resource %pR\n", res);
-                return NULL;
+                return ERR_PTR(-EBUSY);
        }
        if (res->flags & IORESOURCE_CACHEABLE)
@@ -130,10 +133,39 @@ void __iomem *devm_request_and_ioremap(struct device *dev,
        if (!dest_ptr) {
                dev_err(dev, "ioremap failed for resource %pR\n", res);
                devm_release_mem_region(dev, res->start, size);
+                dest_ptr = ERR_PTR(-ENOMEM);
        }
        return dest_ptr;
 }
+EXPORT_SYMBOL(devm_ioremap_resource);
+/**
+ * devm_request_and_ioremap() - Check, request region, and ioremap resource
+ * @dev: Generic device to handle the resource for
+ * @res: resource to be handled
+ *
+ * Takes all necessary steps to ioremap a mem resource. Uses managed device, so
+ * everything is undone on driver detach. Checks arguments, so you can feed
+ * it the result from e.g. platform_get_resource() directly. Returns the
+ * remapped pointer or NULL on error. Usage example:
+ *
+ *      res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ *      base = devm_request_and_ioremap(&pdev->dev, res);
+ *      if (!base)
+ *              return -EADDRNOTAVAIL;
+ */
+void __iomem *devm_request_and_ioremap(struct device *device,
+                                       struct resource *res)
+{
+        void __iomem *dest_ptr;
+        dest_ptr = devm_ioremap_resource(device, res);
+        if (IS_ERR(dest_ptr))
+                return NULL;
+        return dest_ptr;
+}
 EXPORT_SYMBOL(devm_request_and_ioremap);
 #ifdef CONFIG_HAS_IOPORT
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 1db1fc660538..5276b99ca650 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -59,7 +59,7 @@ struct ddebug_iter {
 static DEFINE_MUTEX(ddebug_lock);
 static LIST_HEAD(ddebug_tables);
-static int verbose = 0;
+static int verbose;
 module_param(verbose, int, 0644);
 /* Return the path relative to source root */
@@ -100,24 +100,32 @@ static char *ddebug_describe_flags(struct _ddebug *dp, char *buf,
        return buf;
 }
-#define vpr_info(fmt, ...) \
+#define vpr_info(fmt, ...)                                      \
-        if (verbose) do { pr_info(fmt, ##__VA_ARGS__); } while (0)
-#define vpr_info_dq(q, msg)                                     \
 do {                                                            \
-        /* trim last char off format print */                   \
+        if (verbose)                                            \
-        vpr_info("%s: func=\"%s\" file=\"%s\" "                 \
+                pr_info(fmt, ##__VA_ARGS__);                    \
-                "module=\"%s\" format=\"%.*s\" "                \
-                "lineno=%u-%u",                                 \
-                msg,                                            \
-                q->function ? q->function : "",                 \
-                q->filename ? q->filename : "",                 \
-                q->module ? q->module : "",                     \
-                (int)(q->format ? strlen(q->format) - 1 : 0),   \
-                q->format ? q->format : "",                     \
-                q->first_lineno, q->last_lineno);               \
 } while (0)
+static void vpr_info_dq(const struct ddebug_query *query, const char *msg)
+{
+        /* trim any trailing newlines */
+        int fmtlen = 0;
+        if (query->format) {
+                fmtlen = strlen(query->format);
+                while (fmtlen && query->format[fmtlen - 1] == '\n')
+                        fmtlen--;
+        }
+        vpr_info("%s: func=\"%s\" file=\"%s\" module=\"%s\" format=\"%.*s\" lineno=%u-%u\n",
+                 msg,
+                 query->function ? query->function : "",
+                 query->filename ? query->filename : "",
+                 query->module ? query->module : "",
+                 fmtlen, query->format ? query->format : "",
+                 query->first_lineno, query->last_lineno);
+}
 /*
 * Search the tables for _ddebug's which match the given `query' and
 * apply the `flags' and `mask' to them.  Returns number of matching
@@ -141,7 +149,7 @@ static int ddebug_change(const struct ddebug_query *query,
                if (query->module && strcmp(query->module, dt->mod_name))
                        continue;
-                for (i = 0 ; i < dt->num_ddebugs ; i++) {
+                for (i = 0; i < dt->num_ddebugs; i++) {
                        struct _ddebug *dp = &dt->ddebugs[i];
                        /* match against the source filename */
@@ -176,10 +184,10 @@ static int ddebug_change(const struct ddebug_query *query,
                                continue;
                        dp->flags = newflags;
                        vpr_info("changed %s:%d [%s]%s =%s\n",
-                                trim_prefix(dp->filename), dp->lineno,
+                                 trim_prefix(dp->filename), dp->lineno,
-                                dt->mod_name, dp->function,
+                                 dt->mod_name, dp->function,
-                                ddebug_describe_flags(dp, flagbuf,
+                                 ddebug_describe_flags(dp, flagbuf,
-                                                sizeof(flagbuf)));
+                                                       sizeof(flagbuf)));
                }
        }
        mutex_unlock(&ddebug_lock);
@@ -213,19 +221,23 @@ static int ddebug_tokenize(char *buf, char *words[], int maxwords)
                /* find `end' of word, whitespace separated or quoted */
                if (*buf == '"' || *buf == '\'') {
                        int quote = *buf++;
-                        for (end = buf ; *end && *end != quote ; end++)
+                        for (end = buf; *end && *end != quote; end++)
                                ;
-                        if (!*end)
+                        if (!*end) {
+                                pr_err("unclosed quote: %s\n", buf);
                                return -EINVAL; /* unclosed quote */
+                        }
                } else {
-                        for (end = buf ; *end && !isspace(*end) ; end++)
+                        for (end = buf; *end && !isspace(*end); end++)
                                ;
                        BUG_ON(end == buf);
                }
                /* `buf' is start of word, `end' is one past its end */
-                if (nwords == maxwords)
+                if (nwords == maxwords) {
+                        pr_err("too many words, legal max <=%d\n", maxwords);
                        return -EINVAL; /* ran out of words[] before bytes */
+                }
                if (*end)
                        *end++ = '\0';  /* terminate the word */
                words[nwords++] = buf;
@@ -235,7 +247,7 @@ static int ddebug_tokenize(char *buf, char *words[], int maxwords)
        if (verbose) {
                int i;
                pr_info("split into words:");
-                for (i = 0 ; i < nwords ; i++)
+                for (i = 0; i < nwords; i++)
                        pr_cont(" \"%s\"", words[i]);
                pr_cont("\n");
        }
@@ -257,7 +269,11 @@ static inline int parse_lineno(const char *str, unsigned int *val)
                return 0;
        }
        *val = simple_strtoul(str, &end, 10);
-        return end == NULL || end == str || *end != '\0' ? -EINVAL : 0;
+        if (end == NULL || end == str || *end != '\0') {
+                pr_err("bad line-number: %s\n", str);
+                return -EINVAL;
+        }
+        return 0;
 }
 /*
@@ -286,11 +302,11 @@ static char *unescape(char *str)
                                in += 2;
                                continue;
                        } else if (isodigit(in[1]) &&
-                                 isodigit(in[2]) &&
+                                   isodigit(in[2]) &&
-                                 isodigit(in[3])) {
+                                   isodigit(in[3])) {
-                                *out++ = ((in[1] - '0')<<6) |
+                                *out++ = (((in[1] - '0') << 6) |
-                                          ((in[2] - '0')<<3) |
+                                          ((in[2] - '0') << 3) |
-                                          (in[3] - '0');
+                                          (in[3] - '0'));
                                in += 4;
                                continue;
                        }
@@ -308,8 +324,8 @@ static int check_set(const char **dest, char *src, char *name)
        if (*dest) {
                rc = -EINVAL;
-                pr_err("match-spec:%s val:%s overridden by %s",
+                pr_err("match-spec:%s val:%s overridden by %s\n",
-                        name, *dest, src);
+                       name, *dest, src);
        }
        *dest = src;
        return rc;
@@ -337,40 +353,46 @@ static int ddebug_parse_query(char *words[], int nwords,
        int rc;
        /* check we have an even number of words */
-        if (nwords % 2 != 0)
+        if (nwords % 2 != 0) {
+                pr_err("expecting pairs of match-spec <value>\n");
                return -EINVAL;
+        }
        memset(query, 0, sizeof(*query));
        if (modname)
                /* support $modname.dyndbg=<multiple queries> */
                query->module = modname;
-        for (i = 0 ; i < nwords ; i += 2) {
+        for (i = 0; i < nwords; i += 2) {
-                if (!strcmp(words[i], "func"))
+                if (!strcmp(words[i], "func")) {
                        rc = check_set(&query->function, words[i+1], "func");
-                else if (!strcmp(words[i], "file"))
+                } else if (!strcmp(words[i], "file")) {
                        rc = check_set(&query->filename, words[i+1], "file");
-                else if (!strcmp(words[i], "module"))
+                } else if (!strcmp(words[i], "module")) {
                        rc = check_set(&query->module, words[i+1], "module");
-                else if (!strcmp(words[i], "format"))
+                } else if (!strcmp(words[i], "format")) {
                        rc = check_set(&query->format, unescape(words[i+1]),
-                                "format");
+                                       "format");
-                else if (!strcmp(words[i], "line")) {
+                } else if (!strcmp(words[i], "line")) {
                        char *first = words[i+1];
                        char *last = strchr(first, '-');
                        if (query->first_lineno || query->last_lineno) {
-                                pr_err("match-spec:line given 2 times\n");
+                                pr_err("match-spec: line used 2x\n");
                                return -EINVAL;
                        }
                        if (last)
                                *last++ = '\0';
-                        if (parse_lineno(first, &query->first_lineno) < 0)
+                        if (parse_lineno(first, &query->first_lineno) < 0) {
+                                pr_err("line-number is <0\n");
                                return -EINVAL;
+                        }
                        if (last) {
                                /* range <first>-<last> */
                                if (parse_lineno(last, &query->last_lineno)
                                    < query->first_lineno) {
-                                        pr_err("last-line < 1st-line\n");
+                                        pr_err("last-line:%d < 1st-line:%d\n",
+                                                query->last_lineno,
+                                                query->first_lineno);
                                        return -EINVAL;
                                }
                        } else {
@@ -406,19 +428,22 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
                op = *str++;
                break;
        default:
+                pr_err("bad flag-op %c, at start of %s\n", *str, str);
                return -EINVAL;
        }
        vpr_info("op='%c'\n", op);
-        for ( ; *str ; ++str) {
+        for (; *str ; ++str) {
                for (i = ARRAY_SIZE(opt_array) - 1; i >= 0; i--) {
                        if (*str == opt_array[i].opt_char) {
                                flags |= opt_array[i].flag;
                                break;
                        }
                }
-                if (i < 0)
+                if (i < 0) {
+                        pr_err("unknown flag '%c' in \"%s\"\n", *str, str);
                        return -EINVAL;
+                }
        }
        vpr_info("flags=0x%x\n", flags);
@@ -450,16 +475,22 @@ static int ddebug_exec_query(char *query_string, const char *modname)
        char *words[MAXWORDS];
        nwords = ddebug_tokenize(query_string, words, MAXWORDS);
-        if (nwords <= 0)
+        if (nwords <= 0) {
+                pr_err("tokenize failed\n");
                return -EINVAL;
-        if (ddebug_parse_query(words, nwords-1, &query, modname))
+        }
+        /* check flags 1st (last arg) so query is pairs of spec,val */
+        if (ddebug_parse_flags(words[nwords-1], &flags, &mask)) {
+                pr_err("flags parse failed\n");
                return -EINVAL;
-        if (ddebug_parse_flags(words[nwords-1], &flags, &mask))
+        }
+        if (ddebug_parse_query(words, nwords-1, &query, modname)) {
+                pr_err("query parse failed\n");
                return -EINVAL;
+        }
        /* actually go and implement the change */
        nfound = ddebug_change(&query, flags, mask);
-        vpr_info_dq((&query), (nfound) ? "applied" : "no-match");
+        vpr_info_dq(&query, nfound ? "applied" : "no-match");
        return nfound;
 }
@@ -488,8 +519,9 @@ static int ddebug_exec_queries(char *query, const char *modname)
                if (rc < 0) {
                        errs++;
                        exitcode = rc;
-                } else
+                } else {
                        nfound += rc;
+                }
                i++;
        }
        vpr_info("processed %d queries, with %d matches, %d errs\n",
@@ -765,7 +797,7 @@ static void *ddebug_proc_next(struct seq_file *m, void *p, loff_t *pos)
        struct _ddebug *dp;
        vpr_info("called m=%p p=%p *pos=%lld\n",
-                m, p, (unsigned long long)*pos);
+                 m, p, (unsigned long long)*pos);
        if (p == SEQ_START_TOKEN)
                dp = ddebug_iter_first(iter);
@@ -791,14 +823,14 @@ static int ddebug_proc_show(struct seq_file *m, void *p)
        if (p == SEQ_START_TOKEN) {
                seq_puts(m,
-                        "# filename:lineno [module]function flags format\n");
+                         "# filename:lineno [module]function flags format\n");
                return 0;
        }
        seq_printf(m, "%s:%u [%s]%s =%s \"",
-                trim_prefix(dp->filename), dp->lineno,
+                   trim_prefix(dp->filename), dp->lineno,
-                iter->table->mod_name, dp->function,
+                   iter->table->mod_name, dp->function,
-                ddebug_describe_flags(dp, flagsbuf, sizeof(flagsbuf)));
+                   ddebug_describe_flags(dp, flagsbuf, sizeof(flagsbuf)));
        seq_escape(m, dp->format, "\t\r\n\"");
        seq_puts(m, "\"\n");
@@ -845,7 +877,7 @@ static int ddebug_proc_open(struct inode *inode, struct file *file)
                kfree(iter);
                return err;
        }
-        ((struct seq_file *) file->private_data)->private = iter;
+        ((struct seq_file *)file->private_data)->private = iter;
        return 0;
 }
@@ -1002,8 +1034,7 @@ static int __init dynamic_debug_init(void)
        int verbose_bytes = 0;
        if (__start___verbose == __stop___verbose) {
-                pr_warn("_ddebug table is empty in a "
+                pr_warn("_ddebug table is empty in a CONFIG_DYNAMIC_DEBUG build\n");
-                        "CONFIG_DYNAMIC_DEBUG build");
                return 1;
        }
        iter = __start___verbose;
@@ -1030,18 +1061,16 @@ static int __init dynamic_debug_init(void)
                goto out_err;
        ddebug_init_success = 1;
-        vpr_info("%d modules, %d entries and %d bytes in ddebug tables,"
+        vpr_info("%d modules, %d entries and %d bytes in ddebug tables, %d bytes in (readonly) verbose section\n",
-                " %d bytes in (readonly) verbose section\n",
+                 modct, entries, (int)(modct * sizeof(struct ddebug_table)),
-                modct, entries, (int)( modct * sizeof(struct ddebug_table)),
+                 verbose_bytes + (int)(__stop___verbose - __start___verbose));
-                verbose_bytes + (int)(__stop___verbose - __start___verbose));
        /* apply ddebug_query boot param, dont unload tables on err */
        if (ddebug_setup_string[0] != '\0') {
-                pr_warn("ddebug_query param name is deprecated,"
+                pr_warn("ddebug_query param name is deprecated, change it to dyndbg\n");
-                        " change it to dyndbg\n");
                ret = ddebug_exec_queries(ddebug_setup_string, NULL);
                if (ret < 0)
-                        pr_warn("Invalid ddebug boot param %s",
+                        pr_warn("Invalid ddebug boot param %s\n",
                                ddebug_setup_string);
                else
                        pr_info("%d changes by ddebug_query\n", ret);
diff --git a/lib/hexdump.c b/lib/hexdump.c
index 6540d657dca4..3f0494c9d57a 100644
--- a/lib/hexdump.c
+++ b/lib/hexdump.c
@@ -227,6 +227,7 @@ void print_hex_dump(const char *level, const char *prefix_str, int prefix_type,
 }
 EXPORT_SYMBOL(print_hex_dump);
+#if !defined(CONFIG_DYNAMIC_DEBUG)
 /**
 * print_hex_dump_bytes - shorthand form of print_hex_dump() with default params
 * @prefix_str: string to prefix each line with;
@@ -246,4 +247,5 @@ void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
                       buf, len, true);
 }
 EXPORT_SYMBOL(print_hex_dump_bytes);
-#endif
+#endif /* !defined(CONFIG_DYNAMIC_DEBUG) */
+#endif /* defined(CONFIG_PRINTK) */
diff --git a/mm/Kconfig b/mm/Kconfig
index 278e3ab1f169..308fdcaeed77 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -1,6 +1,6 @@
 config SELECT_MEMORY_MODEL
        def_bool y
-        depends on EXPERIMENTAL || ARCH_SELECT_MEMORY_MODEL
+        depends on ARCH_SELECT_MEMORY_MODEL
 choice
        prompt "Memory model"
diff --git a/net/9p/Kconfig b/net/9p/Kconfig
index d9ea09b11cf8..a75174a33723 100644
--- a/net/9p/Kconfig
+++ b/net/9p/Kconfig
@@ -23,7 +23,7 @@ config NET_9P_VIRTIO
          guest partitions and a host partition.
 config NET_9P_RDMA
-        depends on INET && INFINIBAND && INFINIBAND_ADDR_TRANS && EXPERIMENTAL
+        depends on INET && INFINIBAND && INFINIBAND_ADDR_TRANS
        tristate "9P RDMA Transport (Experimental)"
        help
          This builds support for an RDMA transport.
diff --git a/net/Kconfig b/net/Kconfig
index 5a1888bb036d..6f676ab885be 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -90,7 +90,6 @@ config NETWORK_SECMARK
 config NETWORK_PHY_TIMESTAMPING
        bool "Timestamping in PHY devices"
-        depends on EXPERIMENTAL
        help
          This allows timestamping of network packets by PHYs with
          hardware timestamping capabilities. This option adds some
@@ -278,7 +277,7 @@ config NET_PKTGEN
 config NET_TCPPROBE
        tristate "TCP connection probing"
-        depends on INET && EXPERIMENTAL && PROC_FS && KPROBES
+        depends on INET && PROC_FS && KPROBES
        ---help---
        This module allows for capturing the changes to TCP connection
        state in response to incoming packets. It is used for debugging
@@ -295,7 +294,7 @@ config NET_TCPPROBE
 config NET_DROP_MONITOR
        tristate "Network packet drop alerting service"
-        depends on INET && EXPERIMENTAL && TRACEPOINTS
+        depends on INET && TRACEPOINTS
        ---help---
        This feature provides an alerting service to userspace in the
        event that packets are discarded in the network stack.  Alerts
diff --git a/net/ceph/Kconfig b/net/ceph/Kconfig
index cc04dd667a10..e50cc69ae8ca 100644
--- a/net/ceph/Kconfig
+++ b/net/ceph/Kconfig
@@ -1,6 +1,6 @@
 config CEPH_LIB
-        tristate "Ceph core library (EXPERIMENTAL)"
+        tristate "Ceph core library"
-        depends on INET && EXPERIMENTAL
+        depends on INET
        select LIBCRC32C
        select CRYPTO_AES
        select CRYPTO
diff --git a/net/dccp/Kconfig b/net/dccp/Kconfig
index b75968a04017..8c0ef71bed2f 100644
--- a/net/dccp/Kconfig
+++ b/net/dccp/Kconfig
@@ -1,6 +1,6 @@
 menuconfig IP_DCCP
-        tristate "The DCCP Protocol (EXPERIMENTAL)"
+        tristate "The DCCP Protocol"
-        depends on INET && EXPERIMENTAL
+        depends on INET
        ---help---
          Datagram Congestion Control Protocol (RFC 4340)
diff --git a/net/dccp/ccids/Kconfig b/net/dccp/ccids/Kconfig
index 0581143cb800..8ba3fc9d6d16 100644
--- a/net/dccp/ccids/Kconfig
+++ b/net/dccp/ccids/Kconfig
@@ -1,5 +1,4 @@
-menu "DCCP CCIDs Configuration (EXPERIMENTAL)"
+menu "DCCP CCIDs Configuration"
-        depends on EXPERIMENTAL
 config IP_DCCP_CCID2_DEBUG
        bool "CCID-2 debugging messages"
@@ -12,7 +11,7 @@ config IP_DCCP_CCID2_DEBUG
          If in doubt, say N.
 config IP_DCCP_CCID3
-        bool "CCID-3 (TCP-Friendly) (EXPERIMENTAL)"
+        bool "CCID-3 (TCP-Friendly)"
        def_bool y if (IP_DCCP = y || IP_DCCP = m)
        ---help---
          CCID-3 denotes TCP-Friendly Rate Control (TFRC), an equation-based
diff --git a/net/decnet/Kconfig b/net/decnet/Kconfig
index 7914fd619c5c..f3393e154f0f 100644
--- a/net/decnet/Kconfig
+++ b/net/decnet/Kconfig
@@ -25,8 +25,8 @@ config DECNET
          The module is called decnet.
 config DECNET_ROUTER
-        bool "DECnet: router support (EXPERIMENTAL)"
+        bool "DECnet: router support"
-        depends on DECNET && EXPERIMENTAL
+        depends on DECNET
        select FIB_RULES
        ---help---
          Add support for turning your DECnet Endnode into a level 1 or 2
diff --git a/net/decnet/netfilter/Kconfig b/net/decnet/netfilter/Kconfig
index 2f81de5e752f..8d7c109d5109 100644
--- a/net/decnet/netfilter/Kconfig
+++ b/net/decnet/netfilter/Kconfig
@@ -3,7 +3,7 @@
 #
 menu "DECnet: Netfilter Configuration"
-        depends on DECNET && NETFILTER && EXPERIMENTAL
+        depends on DECNET && NETFILTER
        depends on NETFILTER_ADVANCED
 config DECNET_NF_GRABULATOR
diff --git a/net/ieee802154/Kconfig b/net/ieee802154/Kconfig
index 7dee65052925..b2e06df0076c 100644
--- a/net/ieee802154/Kconfig
+++ b/net/ieee802154/Kconfig
@@ -1,6 +1,5 @@
 config IEEE802154
-        tristate "IEEE Std 802.15.4 Low-Rate Wireless Personal Area Networks support (EXPERIMENTAL)"
+        tristate "IEEE Std 802.15.4 Low-Rate Wireless Personal Area Networks support"
-        depends on EXPERIMENTAL
        ---help---
          IEEE Std 802.15.4 defines a low data rate, low power and low
          complexity short range wireless personal area networks. It was
diff --git a/net/ieee802154/wpan-class.c b/net/ieee802154/wpan-class.c
index 1627ef2e8522..13571eae6bae 100644
--- a/net/ieee802154/wpan-class.c
+++ b/net/ieee802154/wpan-class.c
@@ -91,7 +91,7 @@ static struct class wpan_phy_class = {
 static DEFINE_MUTEX(wpan_phy_mutex);
 static int wpan_phy_idx;
-static int wpan_phy_match(struct device *dev, void *data)
+static int wpan_phy_match(struct device *dev, const void *data)
 {
        return !strcmp(dev_name(dev), (const char *)data);
 }
@@ -103,8 +103,7 @@ struct wpan_phy *wpan_phy_find(const char *str)
        if (WARN_ON(!str))
                return NULL;
-        dev = class_find_device(&wpan_phy_class, NULL,
+        dev = class_find_device(&wpan_phy_class, NULL, str, wpan_phy_match);
-                        (void *)str, wpan_phy_match);
        if (!dev)
                return NULL;
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 5a19aeb86094..7944df768454 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -488,7 +488,6 @@ config TCP_CONG_HTCP
 config TCP_CONG_HSTCP
        tristate "High Speed TCP"
-        depends on EXPERIMENTAL
        default n
        ---help---
        Sally Floyd's High Speed TCP (RFC 3649) congestion control.
@@ -499,7 +498,6 @@ config TCP_CONG_HSTCP
 config TCP_CONG_HYBLA
        tristate "TCP-Hybla congestion control algorithm"
-        depends on EXPERIMENTAL
        default n
        ---help---
        TCP-Hybla is a sender-side only change that eliminates penalization of
@@ -509,7 +507,6 @@ config TCP_CONG_HYBLA
 config TCP_CONG_VEGAS
        tristate "TCP Vegas"
-        depends on EXPERIMENTAL
        default n
        ---help---
        TCP Vegas is a sender-side only change to TCP that anticipates
@@ -520,7 +517,6 @@ config TCP_CONG_VEGAS
 config TCP_CONG_SCALABLE
        tristate "Scalable TCP"
-        depends on EXPERIMENTAL
        default n
        ---help---
        Scalable TCP is a sender-side only change to TCP which uses a
@@ -530,7 +526,6 @@ config TCP_CONG_SCALABLE
 config TCP_CONG_LP
        tristate "TCP Low Priority"
-        depends on EXPERIMENTAL
        default n
        ---help---
        TCP Low Priority (TCP-LP), a distributed algorithm whose goal is
@@ -540,7 +535,6 @@ config TCP_CONG_LP
 config TCP_CONG_VENO
        tristate "TCP Veno"
-        depends on EXPERIMENTAL
        default n
        ---help---
        TCP Veno is a sender-side only enhancement of TCP to obtain better
@@ -552,7 +546,6 @@ config TCP_CONG_VENO
 config TCP_CONG_YEAH
        tristate "YeAH TCP"
-        depends on EXPERIMENTAL
        select TCP_CONG_VEGAS
        default n
        ---help---
@@ -567,7 +560,6 @@ config TCP_CONG_YEAH
 config TCP_CONG_ILLINOIS
        tristate "TCP Illinois"
-        depends on EXPERIMENTAL
        default n
        ---help---
        TCP-Illinois is a sender-side modification of TCP Reno for
@@ -631,8 +623,7 @@ config DEFAULT_TCP_CONG
        default "cubic"
 config TCP_MD5SIG
-        bool "TCP: MD5 Signature Option support (RFC2385) (EXPERIMENTAL)"
+        bool "TCP: MD5 Signature Option support (RFC2385)"
-        depends on EXPERIMENTAL
        select CRYPTO
        select CRYPTO_MD5
        ---help---
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index d8d6f2a5bf12..ce2d43e1f09f 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -241,8 +241,8 @@ config IP_NF_MANGLE
          To compile it as a module, choose M here.  If unsure, say N.
 config IP_NF_TARGET_CLUSTERIP
-        tristate "CLUSTERIP target support (EXPERIMENTAL)"
+        tristate "CLUSTERIP target support"
-        depends on IP_NF_MANGLE && EXPERIMENTAL
+        depends on IP_NF_MANGLE
        depends on NF_CONNTRACK_IPV4
        depends on NETFILTER_ADVANCED
        select NF_CONNTRACK_MARK
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index 4f7fe7270e37..3f2eb57cc51d 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -50,16 +50,15 @@ config IPV6_ROUTER_PREF
          If unsure, say N.
 config IPV6_ROUTE_INFO
-        bool "IPv6: Route Information (RFC 4191) support (EXPERIMENTAL)"
+        bool "IPv6: Route Information (RFC 4191) support"
-        depends on IPV6_ROUTER_PREF && EXPERIMENTAL
+        depends on IPV6_ROUTER_PREF
        ---help---
          This is experimental support of Route Information.
          If unsure, say N.
 config IPV6_OPTIMISTIC_DAD
-        bool "IPv6: Enable RFC 4429 Optimistic DAD (EXPERIMENTAL)"
+        bool "IPv6: Enable RFC 4429 Optimistic DAD"
-        depends on EXPERIMENTAL
        ---help---
          This is experimental support for optimistic Duplicate
          Address Detection.  It allows for autoconfigured addresses
@@ -105,8 +104,7 @@ config INET6_IPCOMP
          If unsure, say Y.
 config IPV6_MIP6
-        tristate "IPv6: Mobility (EXPERIMENTAL)"
+        tristate "IPv6: Mobility"
-        depends on EXPERIMENTAL
        select XFRM
        ---help---
          Support for IPv6 Mobility described in RFC 3775.
@@ -150,8 +148,7 @@ config INET6_XFRM_MODE_BEET
          If unsure, say Y.
 config INET6_XFRM_MODE_ROUTEOPTIMIZATION
-        tristate "IPv6: MIPv6 route optimization mode (EXPERIMENTAL)"
+        tristate "IPv6: MIPv6 route optimization mode"
-        depends on EXPERIMENTAL
        select XFRM
        ---help---
          Support for MIPv6 route optimization mode.
@@ -171,8 +168,8 @@ config IPV6_SIT
          Saying M here will produce a module called sit. If unsure, say Y.
 config IPV6_SIT_6RD
-        bool "IPv6: IPv6 Rapid Deployment (6RD) (EXPERIMENTAL)"
+        bool "IPv6: IPv6 Rapid Deployment (6RD)"
-        depends on IPV6_SIT && EXPERIMENTAL
+        depends on IPV6_SIT
        default n
        ---help---
          IPv6 Rapid Deployment (6rd; draft-ietf-softwire-ipv6-6rd) builds upon
@@ -219,7 +216,6 @@ config IPV6_GRE
 config IPV6_MULTIPLE_TABLES
        bool "IPv6: Multiple Routing Tables"
-        depends on EXPERIMENTAL
        select FIB_RULES
        ---help---
          Support multiple routing tables.
@@ -239,8 +235,8 @@ config IPV6_SUBTREES
          If unsure, say N.
 config IPV6_MROUTE
-        bool "IPv6: multicast routing (EXPERIMENTAL)"
+        bool "IPv6: multicast routing"
-        depends on IPV6 && EXPERIMENTAL
+        depends on IPV6
        ---help---
          Experimental support for IPv6 multicast forwarding.
          If unsure, say N.
@@ -260,7 +256,7 @@ config IPV6_MROUTE_MULTIPLE_TABLES
          If unsure, say N.
 config IPV6_PIMSM_V2
-        bool "IPv6: PIM-SM version 2 support (EXPERIMENTAL)"
+        bool "IPv6: PIM-SM version 2 support"
        depends on IPV6_MROUTE
        ---help---
          Support for IPv6 PIM multicast routing protocol PIM-SMv2.
diff --git a/net/l2tp/Kconfig b/net/l2tp/Kconfig
index 147a8fd47a17..adb9843dd7cf 100644
--- a/net/l2tp/Kconfig
+++ b/net/l2tp/Kconfig
@@ -46,8 +46,8 @@ config L2TP_DEBUGFS
          will be called l2tp_debugfs.
 config L2TP_V3
-        bool "L2TPv3 support (EXPERIMENTAL)"
+        bool "L2TPv3 support"
-        depends on EXPERIMENTAL && L2TP
+        depends on L2TP
        help
          Layer Two Tunneling Protocol Version 3
diff --git a/net/lapb/Kconfig b/net/lapb/Kconfig
index f0b5efb31a00..6481839b76c9 100644
--- a/net/lapb/Kconfig
+++ b/net/lapb/Kconfig
@@ -3,8 +3,7 @@
 #
 config LAPB
-        tristate "LAPB Data Link Driver (EXPERIMENTAL)"
+        tristate "LAPB Data Link Driver"
-        depends on EXPERIMENTAL
        ---help---
          Link Access Procedure, Balanced (LAPB) is the data link layer (i.e.
          the lower) part of the X.25 protocol. It offers a reliable
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index 0ecf947ad378..62535fe9f570 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -81,7 +81,7 @@ comment "Some wireless drivers require a rate control algorithm"
 config MAC80211_MESH
        bool "Enable mac80211 mesh networking (pre-802.11s) support"
-        depends on MAC80211 && EXPERIMENTAL
+        depends on MAC80211
        ---help---
         This options enables support of Draft 802.11s mesh networking.
         The implementation is based on Draft 2.08 of the Mesh Networking
diff --git a/net/mac802154/Kconfig b/net/mac802154/Kconfig
index a967ddaa4e2f..b33dd76d4307 100644
--- a/net/mac802154/Kconfig
+++ b/net/mac802154/Kconfig
@@ -1,6 +1,6 @@
 config MAC802154
        tristate "Generic IEEE 802.15.4 Soft Networking Stack (mac802154)"
-        depends on IEEE802154 && EXPERIMENTAL
+        depends on IEEE802154
        select CRC_CCITT
        ---help---
          This option enables the hardware independent IEEE 802.15.4
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index d4dd702574e4..56d22cae5906 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -131,8 +131,7 @@ config NF_CONNTRACK_LABELS
          to connection tracking entries.  It selected by the connlabel match.
 config NF_CT_PROTO_DCCP
-        tristate 'DCCP protocol connection tracking support (EXPERIMENTAL)'
+        tristate 'DCCP protocol connection tracking support'
-        depends on EXPERIMENTAL
        depends on NETFILTER_ADVANCED
        default IP_DCCP
        help
@@ -145,8 +144,7 @@ config NF_CT_PROTO_GRE
        tristate
 config NF_CT_PROTO_SCTP
-        tristate 'SCTP protocol connection tracking support (EXPERIMENTAL)'
+        tristate 'SCTP protocol connection tracking support'
-        depends on EXPERIMENTAL
        depends on NETFILTER_ADVANCED
        default IP_SCTP
        help
@@ -287,8 +285,7 @@ config NF_CONNTRACK_PPTP
          To compile it as a module, choose M here.  If unsure, say N.
 config NF_CONNTRACK_SANE
-        tristate "SANE protocol support (EXPERIMENTAL)"
+        tristate "SANE protocol support"
-        depends on EXPERIMENTAL
        depends on NETFILTER_ADVANCED
        help
          SANE is a protocol for remote access to scanners as implemented
@@ -415,8 +412,7 @@ endif # NF_CONNTRACK
 # transparent proxy support
 config NETFILTER_TPROXY
-        tristate "Transparent proxying support (EXPERIMENTAL)"
+        tristate "Transparent proxying support"
-        depends on EXPERIMENTAL
        depends on IP_NF_MANGLE
        depends on NETFILTER_ADVANCED
        help
@@ -724,8 +720,7 @@ config NETFILTER_XT_TARGET_TEE
        this clone be rerouted to another nexthop.
 config NETFILTER_XT_TARGET_TPROXY
-        tristate '"TPROXY" target support (EXPERIMENTAL)'
+        tristate '"TPROXY" target support'
-        depends on EXPERIMENTAL
        depends on NETFILTER_TPROXY
        depends on NETFILTER_XTABLES
        depends on NETFILTER_ADVANCED
@@ -789,8 +784,7 @@ config NETFILTER_XT_TARGET_TCPMSS
          To compile it as a module, choose M here.  If unsure, say N.
 config NETFILTER_XT_TARGET_TCPOPTSTRIP
-        tristate '"TCPOPTSTRIP" target support (EXPERIMENTAL)'
+        tristate '"TCPOPTSTRIP" target support'
-        depends on EXPERIMENTAL
        depends on IP_NF_MANGLE || IP6_NF_MANGLE
        depends on NETFILTER_ADVANCED
        help
@@ -1173,8 +1167,7 @@ config NETFILTER_XT_MATCH_RECENT
        Official Website: <http://snowman.net/projects/ipt_recent/>
 config NETFILTER_XT_MATCH_SCTP
-        tristate  '"sctp" protocol match support (EXPERIMENTAL)'
+        tristate  '"sctp" protocol match support'
-        depends on EXPERIMENTAL
        depends on NETFILTER_ADVANCED
        default IP_SCTP
        help
@@ -1186,8 +1179,7 @@ config NETFILTER_XT_MATCH_SCTP
          <file:Documentation/kbuild/modules.txt>.  If unsure, say `N'.
 config NETFILTER_XT_MATCH_SOCKET
-        tristate '"socket" match support (EXPERIMENTAL)'
+        tristate '"socket" match support'
-        depends on EXPERIMENTAL
        depends on NETFILTER_TPROXY
        depends on NETFILTER_XTABLES
        depends on NETFILTER_ADVANCED
diff --git a/net/nfc/core.c b/net/nfc/core.c
index 25522e56d350..6ceee8e181ca 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -730,10 +730,10 @@ struct class nfc_class = {
 };
 EXPORT_SYMBOL(nfc_class);
-static int match_idx(struct device *d, void *data)
+static int match_idx(struct device *d, const void *data)
 {
        struct nfc_dev *dev = to_nfc_dev(d);
-        unsigned int *idx = data;
+        const unsigned int *idx = data;
        return dev->idx == *idx;
 }
diff --git a/net/rds/Kconfig b/net/rds/Kconfig
index ec753b3ae72a..f2c670ba7b9b 100644
--- a/net/rds/Kconfig
+++ b/net/rds/Kconfig
@@ -1,7 +1,7 @@
 config RDS
-        tristate "The RDS Protocol (EXPERIMENTAL)"
+        tristate "The RDS Protocol"
-        depends on INET && EXPERIMENTAL
+        depends on INET
        ---help---
          The RDS (Reliable Datagram Sockets) protocol provides reliable,
          sequenced delivery of datagrams over Infiniband, iWARP,
diff --git a/net/rxrpc/Kconfig b/net/rxrpc/Kconfig
index 0d3103c4f11c..23dcef12b986 100644
--- a/net/rxrpc/Kconfig
+++ b/net/rxrpc/Kconfig
@@ -4,7 +4,7 @@
 config AF_RXRPC
        tristate "RxRPC session sockets"
-        depends on INET && EXPERIMENTAL
+        depends on INET
        select CRYPTO
        select KEYS
        help
diff --git a/net/sunrpc/Kconfig b/net/sunrpc/Kconfig
index 03d03e37a7d5..516fe2caac2c 100644
--- a/net/sunrpc/Kconfig
+++ b/net/sunrpc/Kconfig
@@ -10,7 +10,7 @@ config SUNRPC_BACKCHANNEL
 config SUNRPC_XPRT_RDMA
        tristate
-        depends on SUNRPC && INFINIBAND && INFINIBAND_ADDR_TRANS && EXPERIMENTAL
+        depends on SUNRPC && INFINIBAND && INFINIBAND_ADDR_TRANS
        default SUNRPC && INFINIBAND
        help
          This option allows the NFS client and server to support
diff --git a/net/tipc/Kconfig b/net/tipc/Kconfig
index bc41bd31eadc..4f99600a5fed 100644
--- a/net/tipc/Kconfig
+++ b/net/tipc/Kconfig
@@ -3,8 +3,8 @@
 #
 menuconfig TIPC
-        tristate "The TIPC Protocol (EXPERIMENTAL)"
+        tristate "The TIPC Protocol"
-        depends on INET && EXPERIMENTAL
+        depends on INET
        ---help---
          The Transparent Inter Process Communication (TIPC) protocol is
          specially designed for intra cluster communication. This protocol
diff --git a/net/x25/Kconfig b/net/x25/Kconfig
index e6759c9660bb..c959312c45e3 100644
--- a/net/x25/Kconfig
+++ b/net/x25/Kconfig
@@ -3,8 +3,7 @@
 #
 config X25
-        tristate "CCITT X.25 Packet Layer (EXPERIMENTAL)"
+        tristate "CCITT X.25 Packet Layer"
-        depends on EXPERIMENTAL
        ---help---
          X.25 is a set of standardized network protocols, similar in scope to
          frame relay; the one physical line from your box to the X.25 network
diff --git a/net/xfrm/Kconfig b/net/xfrm/Kconfig
index ce90b8d92365..bda1a13628a8 100644
--- a/net/xfrm/Kconfig
+++ b/net/xfrm/Kconfig
@@ -21,8 +21,8 @@ config XFRM_USER
          If unsure, say Y.
 config XFRM_SUB_POLICY
-        bool "Transformation sub policy support (EXPERIMENTAL)"
+        bool "Transformation sub policy support"
-        depends on XFRM && EXPERIMENTAL
+        depends on XFRM
        ---help---
          Support sub policy for developers. By using sub policy with main
          one, two policies can be applied to the same packet at once.
@@ -31,8 +31,8 @@ config XFRM_SUB_POLICY
          If unsure, say N.
 config XFRM_MIGRATE
-        bool "Transformation migrate database (EXPERIMENTAL)"
+        bool "Transformation migrate database"
-        depends on XFRM && EXPERIMENTAL
+        depends on XFRM
        ---help---
          A feature to update locator(s) of a given IPsec security
          association dynamically.  This feature is required, for
@@ -42,8 +42,8 @@ config XFRM_MIGRATE
          If unsure, say N.
 config XFRM_STATISTICS
-        bool "Transformation statistics (EXPERIMENTAL)"
+        bool "Transformation statistics"
-        depends on INET && XFRM && PROC_FS && EXPERIMENTAL
+        depends on INET && XFRM && PROC_FS
        ---help---
          This statistics is not a SNMP/MIB specification but shows
          statistics about transformation error (or almost error) factor
@@ -68,8 +68,8 @@ config NET_KEY
          Say Y unless you know what you are doing.
 config NET_KEY_MIGRATE
-        bool "PF_KEY MIGRATE (EXPERIMENTAL)"
+        bool "PF_KEY MIGRATE"
-        depends on NET_KEY && EXPERIMENTAL
+        depends on NET_KEY
        select XFRM_MIGRATE
        ---help---
          Add a PF_KEY MIGRATE message to PF_KEYv2 socket family.
diff --git a/scripts/coccinelle/api/devm_ioremap_resource.cocci b/scripts/coccinelle/api/devm_ioremap_resource.cocci
new file mode 100644
index 000000000000..495daa3dbf77
--- /dev/null
+++ b/scripts/coccinelle/api/devm_ioremap_resource.cocci
@@ -0,0 +1,90 @@
+virtual patch
+virtual report
+@depends on patch@
+expression base, dev, res;
+@@
+-base = devm_request_and_ioremap(dev, res);
+base = devm_ioremap_resource(dev, res);
+ ...
+ if (
+-base == NULL
+IS_ERR(base)
+ || ...) {
+<...
+-       return ...;
+       return PTR_ERR(base);
+...>
+ }
+@depends on patch@
+expression e, E, ret;
+identifier l;
+@@
+ e = devm_ioremap_resource(...);
+ ...
+ if (IS_ERR(e) || ...) {
+        ... when any
+-       ret = E;
+       ret = PTR_ERR(e);
+        ...
+(
+        return ret;
+|
+        goto l;
+)
+ }
+@depends on patch@
+expression e;
+@@
+ e = devm_ioremap_resource(...);
+ ...
+ if (IS_ERR(e) || ...) {
+        ...
+-       \(dev_dbg\|dev_err\|pr_debug\|pr_err\|DRM_ERROR\)(...);
+        ...
+ }
+@depends on patch@
+expression e;
+identifier l;
+@@
+ e = devm_ioremap_resource(...);
+ ...
+ if (IS_ERR(e) || ...)
+-{
+(
+        return ...;
+|
+        goto l;
+)
+-}
+@r depends on report@
+expression e;
+identifier l;
+position p1;
+@@
+*e = devm_request_and_ioremap@p1(...);
+ ...
+ if (e == NULL || ...) {
+        ...
+(
+        return ...;
+|
+        goto l;
+)
+ }
+@script:python depends on r@
+p1 << r.p1;
+@@
+msg = "ERROR: deprecated devm_request_and_ioremap() API used on line %s" % (p1[0].line)
+coccilib.report.print_report(p1[0], msg)
diff --git a/sound/soc/cirrus/ep93xx-ac97.c b/sound/soc/cirrus/ep93xx-ac97.c
index f3f50e6fd6eb..1738d28fb04f 100644
--- a/sound/soc/cirrus/ep93xx-ac97.c
+++ b/sound/soc/cirrus/ep93xx-ac97.c
@@ -11,6 +11,7 @@
 */
 #include <linux/delay.h>
+#include <linux/err.h>
 #include <linux/io.h>
 #include <linux/init.h>
 #include <linux/module.h>
@@ -367,9 +368,9 @@ static int ep93xx_ac97_probe(struct platform_device *pdev)
        if (!res)
                return -ENODEV;
-        info->regs = devm_request_and_ioremap(&pdev->dev, res);
+        info->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (!info->regs)
+        if (IS_ERR(info->regs))
-                return -ENXIO;
+                return PTR_ERR(info->regs);
        irq = platform_get_irq(pdev, 0);
        if (!irq)
diff --git a/sound/soc/cirrus/ep93xx-i2s.c b/sound/soc/cirrus/ep93xx-i2s.c
index 3365d4e843b7..323ed69b7975 100644
--- a/sound/soc/cirrus/ep93xx-i2s.c
+++ b/sound/soc/cirrus/ep93xx-i2s.c
@@ -380,9 +380,9 @@ static int ep93xx_i2s_probe(struct platform_device *pdev)
        if (!res)
                return -ENODEV;
-        info->regs = devm_request_and_ioremap(&pdev->dev, res);
+        info->regs = devm_ioremap_resource(&pdev->dev, res);
-        if (!info->regs)
+        if (IS_ERR(info->regs))
-                return -ENXIO;
+                return PTR_ERR(info->regs);
        info->mclk = clk_get(&pdev->dev, "mclk");
        if (IS_ERR(info->mclk)) {
diff --git a/sound/soc/codecs/jz4740.c b/sound/soc/codecs/jz4740.c
index d991529e1aff..5f607b35b68b 100644
--- a/sound/soc/codecs/jz4740.c
+++ b/sound/soc/codecs/jz4740.c
@@ -361,9 +361,9 @@ static int jz4740_codec_probe(struct platform_device *pdev)
                return -ENOMEM;
        mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        base = devm_request_and_ioremap(&pdev->dev, mem);
+        base = devm_ioremap_resource(&pdev->dev, mem);
-        if (!base)
+        if (IS_ERR(base))
-                return -EBUSY;
+                return PTR_ERR(base);
        jz4740_codec->regmap = devm_regmap_init_mmio(&pdev->dev, base,
                                            &jz4740_codec_regmap_config);
diff --git a/sound/soc/fsl/imx-audmux.c b/sound/soc/fsl/imx-audmux.c
index fab912ea7a50..3f333e5b4673 100644
--- a/sound/soc/fsl/imx-audmux.c
+++ b/sound/soc/fsl/imx-audmux.c
@@ -252,9 +252,9 @@ static int imx_audmux_probe(struct platform_device *pdev)
                        of_match_device(imx_audmux_dt_ids, &pdev->dev);
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        audmux_base = devm_request_and_ioremap(&pdev->dev, res);
+        audmux_base = devm_ioremap_resource(&pdev->dev, res);
-        if (!audmux_base)
+        if (IS_ERR(audmux_base))
-                return -EADDRNOTAVAIL;
+                return PTR_ERR(audmux_base);
        pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
        if (IS_ERR(pinctrl)) {
diff --git a/sound/soc/fsl/imx-ssi.c b/sound/soc/fsl/imx-ssi.c
index 3b480423747f..55464a5b0706 100644
--- a/sound/soc/fsl/imx-ssi.c
+++ b/sound/soc/fsl/imx-ssi.c
@@ -550,10 +550,9 @@ static int imx_ssi_probe(struct platform_device *pdev)
                goto failed_get_resource;
        }
-        ssi->base = devm_request_and_ioremap(&pdev->dev, res);
+        ssi->base = devm_ioremap_resource(&pdev->dev, res);
-        if (!ssi->base) {
+        if (IS_ERR(ssi->base)) {
-                dev_err(&pdev->dev, "ioremap failed\n");
+                ret = PTR_ERR(ssi->base);
-                ret = -ENODEV;
                goto failed_register;
        }
diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index 282d8b1163ba..c74c89065493 100644
--- a/sound/soc/kirkwood/kirkwood-i2s.c
+++ b/sound/soc/kirkwood/kirkwood-i2s.c
@@ -472,11 +472,9 @@ static int kirkwood_i2s_dev_probe(struct platform_device *pdev)
                return -ENXIO;
        }
-        priv->io = devm_request_and_ioremap(&pdev->dev, mem);
+        priv->io = devm_ioremap_resource(&pdev->dev, mem);
-        if (!priv->io) {
+        if (IS_ERR(priv->io))
-                dev_err(&pdev->dev, "devm_request_and_ioremap failed\n");
+                return PTR_ERR(priv->io);
-                return -ENOMEM;
-        }
        priv->irq = platform_get_irq(pdev, 0);
        if (priv->irq <= 0) {
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index e70e6c844f96..3a2aa1d19b93 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -717,11 +717,9 @@ static int mxs_saif_probe(struct platform_device *pdev)
        iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        saif->base = devm_request_and_ioremap(&pdev->dev, iores);
+        saif->base = devm_ioremap_resource(&pdev->dev, iores);
-        if (!saif->base) {
+        if (IS_ERR(saif->base))
-                dev_err(&pdev->dev, "ioremap failed\n");
+                return PTR_ERR(saif->base);
-                return -ENODEV;
-        }
        dmares = platform_get_resource(pdev, IORESOURCE_DMA, 0);
        if (!dmares) {
diff --git a/sound/soc/pxa/mmp-sspa.c b/sound/soc/pxa/mmp-sspa.c
index 41c3a09b53ea..9140c4abafbc 100644
--- a/sound/soc/pxa/mmp-sspa.c
+++ b/sound/soc/pxa/mmp-sspa.c
@@ -429,9 +429,9 @@ static int asoc_mmp_sspa_probe(struct platform_device *pdev)
        if (res == NULL)
                return -ENOMEM;
-        priv->sspa->mmio_base = devm_request_and_ioremap(&pdev->dev, res);
+        priv->sspa->mmio_base = devm_ioremap_resource(&pdev->dev, res);
-        if (priv->sspa->mmio_base == NULL)
+        if (IS_ERR(priv->sspa->mmio_base))
-                return -ENODEV;
+                return PTR_ERR(priv->sspa->mmio_base);
        priv->sspa->clk = devm_clk_get(&pdev->dev, NULL);
        if (IS_ERR(priv->sspa->clk))
diff --git a/tools/lguest/lguest.txt b/tools/lguest/lguest.txt
index bff0c554485d..7203ace65e83 100644
--- a/tools/lguest/lguest.txt
+++ b/tools/lguest/lguest.txt
@@ -29,10 +29,6 @@ Running Lguest:
  You will need to configure your kernel with the following options:
-  "General setup":
-     "Prompt for development and/or incomplete code/drivers" = Y
-        (CONFIG_EXPERIMENTAL=y)
  "Processor type and features":
     "Paravirtualized guest support" = Y
        "Lguest guest support" = Y
@@ -43,10 +39,10 @@ Running Lguest:
  "Device Drivers":
     "Block devices"
-        "Virtio block driver (EXPERIMENTAL)" = M/Y
+        "Virtio block driver" = M/Y
     "Network device support"
        "Universal TUN/TAP device driver support" = M/Y
-        "Virtio network driver (EXPERIMENTAL)" = M/Y
+        "Virtio network driver" = M/Y
           (CONFIG_VIRTIO_BLK=m, CONFIG_VIRTIO_NET=m and CONFIG_TUN=m)
  "Virtualization"
author	Linus Torvalds <torvalds@linux-foundation.org>	2013-02-21 15:05:51 -0500
committer	Linus Torvalds <torvalds@linux-foundation.org>	2013-02-21 15:05:51 -0500
commit	06991c28f37ad68e5c03777f5c3b679b56e3dac1 (patch)
tree	4be75788e21c3c644fe6d39abf47693a171cf4f8
parent	460dc1eecf37263c8e3b17685ef236f0d236facb (diff)
parent	74fef7a8fd1d2bd94f925d6638bb4c3049e7c381 (diff)