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* PCI: Report pci_pme_active() kmalloc failureBjorn Helgaas2013-10-29
| | | | | | | | Previously, if kmalloc() failed, we claimed "PME# enabled" in dmesg, even though we didn't add the device to the pci_pme_list. This prints a more correct warning. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* mn10300/PCI: Remove useless pcibios_last_busBjorn Helgaas2013-10-29
| | | | | | | | pcibios_last_bus was apparently copied from x86. On mn10300, it is statically initialized to -1 and may be set with the "pci=lastbus=<X>" boot option, but it is never tested. This patch removes everything related to pcibios_last_bus. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* frv/PCI: Remove pcibios_last_busBjorn Helgaas2013-10-29
| | | | | | | | pcibios_last_bus was apparently copied from x86. On FR-V, it is statically initialized to -1 and never changed unless the user boots with "pci=lastbus=<X>". I doubt that option is used on FR-V, so this patch removes all the code related to pcibios_last_bus. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* PCI: Fail MSI/MSI-X initialization if device is not in PCI_D0Yijing Wang2013-10-29
| | | | | | | | | | | | | Currently, pci_enable_msi() and pci_enable_msix() return success even if the device power state is not D0. However, we don't write the MSI message to the device registers, and the registers will never be updated later. This patch makes pci_enable_msi() and pci_enable_msix() return an error instead. [bhelgaas: changelog] Signed-off-by: Yijing Wang <wangyijing@huawei.com> Acked-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* x86/PCI: Coalesce multiple overlapping host bridge windowsAlexey Neyman2013-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | Previously we coalesced windows by expanding the first overlapping one and making the second invalid. But we never look at the expanded first window again, so we fail to notice other windows that overlap it. For example, we coalesced these: [io 0x0000-0x03af] // #0 [io 0x03e0-0x0cf7] // #1 [io 0x0000-0xdfff] // #2 into these, which still overlap: [io 0x0000-0xdfff] // #0 [io 0x03e0-0x0cf7] // #1 The fix is to expand the *second* overlapping resource and ignore the first, so we get this instead with no overlaps: [io 0x0000-0xdfff] // #2 [bhelgaas: changelog] Reference: https://bugzilla.kernel.org/show_bug.cgi?id=62511 Signed-off-by: Alexey Neyman <stilor@att.net> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* MAINTAINERS: Add arch/x86/pci to PCI file patternsBjorn Helgaas2013-10-09
| | | | | | | | I handle many arch/x86/pci changes, so help those patches get to the PCI patchwork. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Acked-by: Ingo Molnar <mingo@kernel.org>
* PCI/PM: Remove pci_pm_complete()Liu Chuansheng2013-10-07
| | | | | | | | | | | | 88d26136 ("PM: Prevent runtime suspend during system resume") removed the pm_runtime_put_sync() from pci_pm_complete() to PM core code device_complete(). Here the pci_pm_complete() is doing the same work which can be done in device_complete(), so we can remove it directly. Signed-off-by: Liu Chuansheng <chuansheng.liu@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* PCI: Add pci_dev_show_local_cpu() to simplify codeYijing Wang2013-10-07
| | | | | | | | | | | local_cpus_show() and local_cpulist_show() are almost the same. This adds a new helper function, pci_dev_show_local_cpu(), to simplify code. The same strategy is already used by cpuaffinity_show() and cpulistaffinity_show(). Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* mn10300/PCI: Remove unused pci_mem_startMyron Stowe2013-10-07
| | | | | | | | Remove unused 'pci_mem_start' variable. Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: David Howells <dhowells@redhat.com> CC: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
* cris/PCI: Remove unused pci_mem_startMyron Stowe2013-10-07
| | | | | | | | Remove unused 'pci_mem_start' variable. Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Mikael Starvik <starvik@axis.com> CC: Jesper Nilsson <jesper.nilsson@axis.com>
* PCI: Make pci_dev_pm_ops staticSachin Kamat2013-10-07
| | | | | | pci_dev_pm_ops is local to pci-driver.c. Make it static. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* PCI: Remove unused PCI_MSIX_FLAGS_BIRMASK definitionYijing Wang2013-09-27
| | | | | | | PCI_MSIX_FLAGS_BIRMASK has been replaced by PCI_MSIX_TABLE_BIR for better readability. Now no one uses it, remove it. No functional change. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* PCI: acpiphp_ibm: Convert to dynamic debugLan Tianyu2013-09-25
| | | | | | | | | | | | | This patch is to use pr_debug/info/warn/err to replace acpiphp_ibm debug functions and remove module's debug param. User interface change: before this patch, boot with the "acpiphp_ibm.debug" kernel parameter to turn on debug. After this patch, set CONFIG_DYNAMIC_DEBUG=y and boot with "acpiphp_ibm.dyndebug=+p" instead. See Documentation/dynamic-debug-howto.txt. [bhelgaas: changelog] Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* PCI: acpiphp: Convert to dynamic debugLan Tianyu2013-09-25
| | | | | | | | | | | | | This patch is to use pr_debug/info/warn/err to replace acpiphp debug functions and remove module's debug param. User interface change: before this patch, boot with the "acpiphp.debug" kernel parameter to turn on debug. After this patch, set CONFIG_DYNAMIC_DEBUG=y and boot with "acpiphp.dyndebug=+p" instead. See Documentation/dynamic-debug-howto.txt. [bhelgaas: changelog] Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* PCI: Remove Intel Haswell D3 delaysTodd E Brandt2013-09-25
| | | | | | | | | | | | | | | | | | The latest Intel Haswell chipsets have a hardware optimization which allows on-chip PCI devices to ignore the 10ms delay before entering or exiting D3 suspend. This patch implements the optimization as a PCI quirk, since we want tight control over which devices use it. This way we can test each device individually to be sure there are no issues before we enable the quirk. The first set of devices are from the Haswell platform, which includes every PCI device that is on the northbridge and southbridge. This patch reduces the Haswell suspend time from 93 ms to 47 ms and resume time from 160 ms to 64 ms. Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* PCI: Pass type, width, and prefetchability for window alignmentWei Yang2013-09-25
| | | | | | | | | | | | When calculating window_alignment(), type information like IORESOURCE_MEM and IORESOURCE_PREFETCH may not be enough. For example, on powernv, we need to know whether the window is 64-bit or not. This patch passes the full resource type (res->flags) for window alignment. [bhelgaas: changelog] Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Gavin Shan <shangw@linux.vnet.ibm.com>
* PCI: Document reason for using pci_is_root_bus()Bjorn Helgaas2013-09-25
| | | | | | | | | Some code assumes "bus->self == NULL" means the bus is a root bus. This adds a comment explaining why this is incorrect ("virtual" buses added for SR-IOV have "bus->self == NULL" but are not root buses). No functional change. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* PCI: Use pci_is_root_bus() to check for root busWei Yang2013-09-25
| | | | | | | | | | | | | | In __pci_bus_size_bridges() we check whether a bus is a root bus by testing bus->self. As indicated by commit 79af72d7 ("PCI: pci_is_root_bus helper"), bus->self == NULL is not a proper way to check for a root bus. One issue is that "virtual" buses added for SR-IOV (via virtfn_add_bus()) have bus->self == NULL but are not root buses. This patch changes it to pci_is_root_bus() to check whether it is a root bus. [bhelgaas: changelog] Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* PCI: Remove unused "is_pcie" from pci_dev structureYijing Wang2013-09-25
| | | | | | No one uses "is_pcie" now; remove this obsolete member. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* PCI: Update pci_find_slot() description in pci.txtYijing Wang2013-09-25
| | | | | | | | pci_find_slot() has been removed from the kernel. Document its closest replacement, pci_get_domain_bus_and_slot(), instead. [bhelgaas: fix indentation, keep mention in "obsolete" section] Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* [SCSI] qla2xxx: Use standard PCIe Capability Link register field namesBjorn Helgaas2013-09-25
| | | | | | | | | Use the standard #defines for PCIe Link Capability register fields rather than bare numbers. This also uses the new PCI Express Capability accessor rather than reading the capability directly. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Acked-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
* PCI: Fix comment typo, remove unnecessary !! in pci_is_pcie()Joe Perches2013-09-25
| | | | | | | Use normal kernel-doc "Returns:" instead of "retrun" Assignment to bool is always 1 or 0 so the !! isn't necessary. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* PCI: Drop "setting latency timer" messagesBjorn Helgaas2013-09-25
| | | | | | | | | This message isn't useful any more, so drop it. Reference: https://bugzilla.kernel.org/show_bug.cgi?id=60636 Reported-by: Oleksil Shevchuk <alxchk@gmail.com> Reference: http://lkml.kernel.org/r/CALCETrWkr53ZjqdN3t7rTTfr=+ZKZXJoYsuBcwPf0kN_33GfAw@mail.gmail.com Reported-by: Andy Lutomirski <luto@amacapital.net> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* Linux 3.12-rc2Linus Torvalds2013-09-23
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* Merge tag 'staging-3.12-rc2' of ↵Linus Torvalds2013-09-23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging fixes from Greg KH: "Here are a number of small staging tree and iio driver fixes. Nothing major, just lots of little things" * tag 'staging-3.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (34 commits) iio:buffer_cb: Add missing iio_buffer_init() iio: Prevent race between IIO chardev opening and IIO device free iio: fix: Keep a reference to the IIO device for open file descriptors iio: Stop sampling when the device is removed iio: Fix crash when scan_bytes is computed with active_scan_mask == NULL iio: Fix mcp4725 dev-to-indio_dev conversion in suspend/resume iio: Fix bma180 dev-to-indio_dev conversion in suspend/resume iio: Fix tmp006 dev-to-indio_dev conversion in suspend/resume iio: iio_device_add_event_sysfs() bugfix staging: iio: ade7854-spi: Fix return value staging:iio:hmc5843: Fix measurement conversion iio: isl29018: Fix uninitialized value staging:iio:dummy fix kfifo_buf kconfig dependency issue if kfifo modular and buffer enabled for built in dummy driver. iio: at91: fix adc_clk overflow staging: line6: add bounds check in snd_toneport_source_put() Staging: comedi: Fix dependencies for drivers misclassified as PCI staging: r8188eu: Adjust RX gain staging: r8188eu: Fix smatch warning in core/rtw_ieee80211. staging: r8188eu: Fix smatch error in core/rtw_mlme_ext.c staging: r8188eu: Fix Smatch off-by-one warning in hal/rtl8188e_hal_init.c ...
| * Merge tag 'iio-fixes-for-3.12a' of ↵Greg Kroah-Hartman2013-09-21
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: First round of IIO fixes for 3.12 A series of wrong 'struct dev' assumptions in suspend/resume callbacks following on from this issue being identified in a new driver review. One to watch out for in future. A number of driver specific fixes 1) at91 - fix a overflow in clock rate computation 2) dummy - Kconfig dependency issue 3) isl29018 - uninitialized value 4) hmc5843 - measurement conversion bug introduced by recent cleanup. 5) ade7854-spi - wrong return value. Some IIO core fixes 1) Wrong value picked up for event code creation for a modified channel 2) A null dereference on failure to initialize a buffer after no buffer has been in use, when using the available_scan_masks approach. 3) Sampling not stopped when a device is removed. Effects forced removal such as hot unplugging. 4) Prevent device going away if a chrdev is still open in userspace. 5) Prevent race on chardev opening and device being freed. 6) Add a missing iio_buffer_init in the call back buffer. These last few are the first part of a set from Lars-Peter Clausen who has been taking a closer look at our removal paths and buffer handling than anyone has for quite some time.
| | * iio:buffer_cb: Add missing iio_buffer_init()Lars-Peter Clausen2013-09-21
| | | | | | | | | | | | | | | | | | | | | Make sure to properly initialize the IIO buffer data structure. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio: Prevent race between IIO chardev opening and IIO device freeLars-Peter Clausen2013-09-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set the IIO device as the parent for the character device We need to make sure that the IIO device is not freed while the character device exists, otherwise the freeing of the IIO device might race against the file open callback. Do this by setting the character device's parent to the IIO device, this will cause the character device to grab a reference to the IIO device and only release it once the character device itself has been removed. Also move the registration of the character device before the registration of the IIO device to avoid the (rather theoretical case) that the IIO device is already freed again before we can add the character device and grab a reference to the IIO device. We also need to move the call to cdev_del() from iio_dev_release() to iio_device_unregister() (where it should have been in the first place anyway) to avoid a reference cycle. As iio_dev_release() is only called once all reference are dropped, but the character device holds a reference to the IIO device. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio: fix: Keep a reference to the IIO device for open file descriptorsLars-Peter Clausen2013-09-21
| | | | | | | | | | | | | | | | | | | | | | | | Make sure that the IIO device is not freed while we still have file descriptors for it. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio: Stop sampling when the device is removedLars-Peter Clausen2013-09-21
| | | | | | | | | | | | | | | | | | | | | | | | Make sure to stop sampling when the device is removed, otherwise it will continue to sample forever. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio: Fix crash when scan_bytes is computed with active_scan_mask == NULLPeter Meerwald2013-09-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | if device has available_scan_masks set and the buffer is enabled without any scan_elements enabled, in a NULL pointer is dereferenced in iio_compute_scan_bytes() [ 18.993713] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 19.002593] pgd = debd4000 [ 19.005432] [00000000] *pgd=9ebc0831, *pte=00000000, *ppte=00000000 [ 19.012329] Internal error: Oops: 17 [#1] PREEMPT ARM [ 19.017639] Modules linked in: [ 19.020843] CPU: 0 Not tainted (3.9.11-00036-g75c888a-dirty #207) [ 19.027587] PC is at _find_first_bit_le+0xc/0x2c [ 19.032440] LR is at iio_compute_scan_bytes+0x2c/0xf4 [ 19.037719] pc : [<c021dc60>] lr : [<c03198d0>] psr: 200d0013 [ 19.037719] sp : debd9ed0 ip : 00000000 fp : 000802bc [ 19.049713] r10: 00000000 r9 : 00000000 r8 : deb67250 [ 19.055206] r7 : 00000000 r6 : 00000000 r5 : 00000000 r4 : deb67000 [ 19.062011] r3 : de96ec00 r2 : 00000000 r1 : 00000004 r0 : 00000000 [ 19.068847] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 19.076324] Control: 10c5387d Table: 9ebd4019 DAC: 00000015 problem is the rollback code in iio_update_buffers(), old_mask may be NULL (e.g. on first call) I'm not too confident about the fix; works for me... Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio: Fix mcp4725 dev-to-indio_dev conversion in suspend/resumePeter Meerwald2013-09-21
| | | | | | | | | | | | | | | | | | | | | dev_to_iio_dev() is a false friend Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio: Fix bma180 dev-to-indio_dev conversion in suspend/resumePeter Meerwald2013-09-21
| | | | | | | | | | | | | | | | | | | | | | | | dev_to_iio_dev() is a false friend Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio: Fix tmp006 dev-to-indio_dev conversion in suspend/resumePeter Meerwald2013-09-21
| | | | | | | | | | | | | | | | | | | | | dev_to_iio_dev() is a false friend Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio: iio_device_add_event_sysfs() bugfixLukasz Czerwinski2013-09-18
| | | | | | | | | | | | | | | | | | | | | Fix mask generation for modified channels. Signed-off-by: Lukasz Czerwinski <l.czerwinski@samsung.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * staging: iio: ade7854-spi: Fix return valueSachin Kamat2013-09-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | ade7854_probe can fail. Return the value obtained from it instead of 0 (success). Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Barry Song <21cnbao@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * staging:iio:hmc5843: Fix measurement conversionPeter Meerwald2013-09-18
| | | | | | | | | | | | | | | | | | | | | | | | recently broken, cd6fe06588423ff4cca85c85c4402027b04dccf1 staging:iio:hmc5843: Use i2c_smbus_read_word_swapped() Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio: isl29018: Fix uninitialized valueDerek Basehore2013-09-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The lux_uscale value is not initialized at probe. The value will be uninitialized unless a value is written to it through the iio channel interface. This fixes that. Signed-off-by: Derek Basehore <dbasehore@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/65998 Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * staging:iio:dummy fix kfifo_buf kconfig dependency issue if kfifo modular ↵Jonathan Cameron2013-09-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | and buffer enabled for built in dummy driver. This only occurs in the unlikely event that the example driver is built in whilst the buffer implementation is not. Solved by switching from a depends on to a select for this particular case. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| | * iio: at91: fix adc_clk overflowJosh Wu2013-09-18
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | The adc_clk variable is currently defined using a 32-bits unsigned integer, which will overflow under some very valid range of operations. Such overflow will occur if, for example, the parent clock is set to a 20MHz frequency and the ADC startup time is larger than 215ns. To fix this, introduce an intermediate variable holding the clock rate in kHz. Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| * staging: line6: add bounds check in snd_toneport_source_put()Dan Carpenter2013-09-17
| | | | | | | | | | | | | | | | | | "source" comes from the user in snd_ctl_elem_write() so it needs to be checked. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Stefan Hajnoczi <stefanha@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * Staging: comedi: Fix dependencies for drivers misclassified as PCIBen Hutchings2013-09-17
| | | | | | | | | | | | | | | | | | | | | | | | The Fastwel UNIOxx-5 is a PC/104 board, so put COMEDI_UNIOXX5 under COMEDI_ISA_DRIVERS. The DIL/Net-PC 1486 is a 486 system, so put COMEDI_SSV_DNP under COMEDI_MISC_DRIVERS and add a dependency on X86_32 || COMPILE_TEST. Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * staging: r8188eu: Adjust RX gainLarry Finger2013-09-17
| | | | | | | | | | | | | | | | | | In some circumstances, the performance of this driver is highly degraded, and ifconfig reports large numbers of dropped packets. By increasing the maximum RX gain from 0x3e to 0x4e, performance is greatly improved. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * staging: r8188eu: Fix smatch warning in core/rtw_ieee80211.Larry Finger2013-09-17
| | | | | | | | | | | | | | | | | | | | Smatch shows the following warning: drivers/staging/rtl8188eu/core/rtw_ieee80211.c:161 rtw_set_ie() info: ignoring unreachable code. The cause is a module exit tracing statement after a return. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * staging: r8188eu: Fix smatch error in core/rtw_mlme_ext.cLarry Finger2013-09-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Smatch reports the following warning: "drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:8328 mlme_evt_hdl() error: buffer overflow 'wlanevents' 24 <= 24" 8321 /* checking if event code is valid */ 8322 if (evt_code >= MAX_C2HEVT) { ^^^^^^^^^^^^^^^^^^^^^^ 8323 RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_, ("\nEvent Code(%d) mismatch!\n", evt_code)); 8324 goto _abort_event_; 8325 } 8326 8327 /* checking if event size match the event parm size */ 8328 if ((wlanevents[evt_code].parmsize != 0) && ^^^^^^^^^^^^^^^^^^^^ 8329 (wlanevents[evt_code].parmsize != evt_sz)) { 8330 RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_, 8331 ("\nEvent(%d) Parm Size mismatch (%d vs %d)!\n", 8332 evt_code, wlanevents[evt_code].parmsize, evt_sz)); 8333 goto _abort_event_; 8334 } This warning results because the number of items in "enum rtw_c2h_event", which determines the value of MAX_C2HEVT, is one more than in "struct wlanevents". Adding an extra dummy event to the latter fixes the problem. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * staging: r8188eu: Fix Smatch off-by-one warning in hal/rtl8188e_hal_init.cLarry Finger2013-09-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Smatch reports the following warning: "drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c:2008 Hal_ReadPowerValueFromPROM_8188E() error: buffer overflow 'pwrInfo24G->IndexBW40_Base[rfPath]' 5 <= 5" drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c 2005 /* 2.4G default value */ 2006 for (group = 0; group < MAX_CHNL_GROUP_24G; group++) { 2007 pwrInfo24G->IndexCCK_Base[rfPath][group] = EEPROM_DEFAULT_24G_INDEX; 2008 pwrInfo24G->IndexBW40_Base[rfPath][group] = EEPROM_DEFAULT_24G_INDEX; The reason is that IndexCCK_Base[] has MAX_CHNL_GROUP_24G elements, but IndexBW40_Base is smaller by 1. Make them both have MAX_CHNL_GROUP_24G elements. Reported by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * staging: Disable lustre file system for MIPS, SH, and XTENSAGuenter Roeck2013-09-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mips allmodconfig fails with ERROR: "copy_from_user_page" [drivers/staging/lustre/lustre/libcfs/libcfs.ko] undefined! which is due to LUSTRE using copy_from_user_page which is not exported by any architecture. Unfortunately, LUSTRE can only be built as module, so there is no easy fix. MIPS, SH, and optionally XTENSA implement copy_from_user_page as unexported functions. Disable LUSTRE for those. Cc: Peng Tao <bergwolf@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * Revert "staging: zram: Add auto loading of module if user opens /dev/zram."Greg Kroah-Hartman2013-09-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit c70bda992c12e593e411c02a52e4bd6985407539. It's incorrect, Kay writes: Please just remove it. "devname" is meant to be used for single-instance devices with a static dev_t, never for things like zramX. It will not do anything useful here, it does nothing really without a statically assigned dev_t, and it should not be used for devices of this kind anyway. Reported-by: Tom Gundersen <teg@jklm.no> Reported-by: Kay Sievers <kay@vrfy.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * staging: octeon-ethernet: rgmii: enable interrupts that we can handleAaro Koskinen2013-09-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable only those interrupts that we can handle & acknowledge in the interrupt handler. At least on EdgeRouter Lite, the hardware may occasionally interrupt with some error condition when the physical link status changes frequently. Since the interrupt condition is not acked properly, this leads to the following warning and the IRQ gets disabled completely: [ 41.324700] eth0: Link down [ 44.324721] eth0: 1000 Mbps Full duplex, port 0, queue 0 [ 44.885590] irq 117: nobody cared (try booting with the "irqpoll" option) [ 44.892397] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.11.0-rc5-edge-los.git-27d042f-dirty-00950-gaa42f2d-dirty #8 [ 44.902825] Stack : ffffffff815c0000 0000000000000004 0000000000000003 0000000000000000 ffffffff81fd0000 ffffffff815c0000 0000000000000004 ffffffff8118530c ffffffff815c0000 ffffffff811858d8 0000000000000000 0000000000000000 ffffffff81fd0000 ffffffff81fc0000 ffffffff8152f3a0 ffffffff815b7bf7 ffffffff81fc6688 ffffffff815b8060 0000000000000000 0000000000000000 0000000000000000 ffffffff815346c8 ffffffff815346b0 ffffffff814a6a18 ffffffff8158b848 ffffffff81145614 ffffffff81593800 ffffffff81187174 ffffffff815b7d00 ffffffff8158b760 0000000000000000 ffffffff814a9184 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffffffff811203b8 0000000000000000 0000000000000000 ... [ 44.968408] Call Trace: [ 44.970873] [<ffffffff811203b8>] show_stack+0x68/0x80 [ 44.975937] [<ffffffff814a9184>] dump_stack+0x78/0xb8 [ 44.980999] [<ffffffff811aac54>] __report_bad_irq+0x44/0x108 [ 44.986662] [<ffffffff811ab238>] note_interrupt+0x248/0x2a0 [ 44.992240] [<ffffffff811a85e4>] handle_irq_event_percpu+0x144/0x200 [ 44.998598] [<ffffffff811a86f4>] handle_irq_event+0x54/0x90 [ 45.004176] [<ffffffff811ab908>] handle_level_irq+0xd0/0x148 [ 45.009839] [<ffffffff811a7b04>] generic_handle_irq+0x34/0x50 [ 45.015589] [<ffffffff8111dae8>] do_IRQ+0x18/0x30 [ 45.020301] [<ffffffff8110486c>] plat_irq_dispatch+0x74/0xb8 [ 45.025958] [ 45.027451] handlers: [ 45.029731] [<ffffffff813fca10>] cvm_oct_rgmii_rml_interrupt [ 45.035397] Disabling IRQ #117 [ 45.038742] Port 0 receive error code 13, packet dropped [ 46.324719] eth0: Link down [ 48.324733] eth0: 1000 Mbps Full duplex, port 0, queue 0 Reported-by: "Jason A. Donenfeld" <Jason@zx2c4.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Acked-by: David Daney <david.daney@cavium.com> Acked-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * staging: octeon-ethernet: remove skb alloc failure warningsAaro Koskinen2013-09-17
| | | | | | | | | | | | | | | | | | | | | | Remove skb allocation failure warnings. They will trigger a page allocation warning already. Also, one of the warnings was not ratelimited, causing the box to lock up under heavy traffic & low memory. Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Acked-by: David Daney <david.daney@cavium.com> Acked-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-13 03:00:06 -0400