Merge ../linux-2.6

30 files changed, 154 insertions, 104 deletions

diff --git a/Documentation/sysrq.txt b/Documentation/sysrq.txt
index e0188a23fd5e..61613166981b 100644
--- a/Documentation/sysrq.txt
+++ b/Documentation/sysrq.txt
@@ -1,6 +1,6 @@
 Linux Magic System Request Key Hacks
-Documentation for sysrq.c version 1.15
-Last update: $Date: 2001/01/28 10:15:59 $
+Documentation for sysrq.c
+Last update: 2007-JAN-06
 
 *  What is the magic SysRq key?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -35,7 +35,7 @@ You can set the value in the file by the following command:
 
 Note that the value of /proc/sys/kernel/sysrq influences only the invocation
 via a keyboard. Invocation of any operation via /proc/sysrq-trigger is always
-allowed.
+allowed (by a user with admin privileges).
 
 *  How do I use the magic SysRq key?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -58,7 +58,7 @@ On PowerPC - Press 'ALT - Print Screen (or F13) - <command key>,
 On other - If you know of the key combos for other architectures, please
            let me know so I can add them to this section.
 
-On all -  write a character to /proc/sysrq-trigger.  eg:
+On all -  write a character to /proc/sysrq-trigger.  e.g.:
 
                 echo t > /proc/sysrq-trigger
 
@@ -74,6 +74,8 @@ On all -  write a character to /proc/sysrq-trigger.  eg:
 
 'c'     - Will perform a kexec reboot in order to take a crashdump.
 
+'d'     - Shows all locks that are held.
+
 'o'     - Will shut your system off (if configured and supported).
 
 's'     - Will attempt to sync all mounted filesystems.
@@ -87,38 +89,43 @@ On all -  write a character to /proc/sysrq-trigger.  eg:
 
 'm'     - Will dump current memory info to your console.
 
+'n'     - Used to make RT tasks nice-able
+
 'v'     - Dumps Voyager SMP processor info to your console.
 
+'w'     - Dumps tasks that are in uninterruptable (blocked) state.
+
+'x'     - Used by xmon interface on ppc/powerpc platforms.
+
 '0'-'9' - Sets the console log level, controlling which kernel messages
           will be printed to your console. ('0', for example would make
           it so that only emergency messages like PANICs or OOPSes would
           make it to your console.)
 
-'f'     - Will call oom_kill to kill a memory hog process
+'f'     - Will call oom_kill to kill a memory hog process.
 
 'e'     - Send a SIGTERM to all processes, except for init.
 
-'i'     - Send a SIGKILL to all processes, except for init.
+'g'     - Used by kgdb on ppc platforms.
 
-'l'     - Send a SIGKILL to all processes, INCLUDING init. (Your system
-          will be non-functional after this.)
+'i'     - Send a SIGKILL to all processes, except for init.
 
-'h'     - Will display help ( actually any other key than those listed
+'h'     - Will display help (actually any other key than those listed
           above will display help. but 'h' is easy to remember :-)
 
 *  Okay, so what can I use them for?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Well, un'R'aw is very handy when your X server or a svgalib program crashes.
 
-sa'K' (Secure Access Key) is useful when you want to be sure there are no
-trojan program is running at console and which could grab your password
-when you would try to login. It will kill all programs on given console
-and thus letting you make sure that the login prompt you see is actually
+sa'K' (Secure Access Key) is useful when you want to be sure there is no
+trojan program running at console which could grab your password
+when you would try to login. It will kill all programs on given console,
+thus letting you make sure that the login prompt you see is actually
 the one from init, not some trojan program.
 IMPORTANT: In its true form it is not a true SAK like the one in a :IMPORTANT
 IMPORTANT: c2 compliant system, and it should not be mistaken as   :IMPORTANT
 IMPORTANT: such.                                                   :IMPORTANT
-       It seems other find it useful as (System Attention Key) which is
+       It seems others find it useful as (System Attention Key) which is
 useful when you want to exit a program that will not let you switch consoles.
 (For example, X or a svgalib program.)
 
@@ -139,8 +146,8 @@ OK or Done message...)
 Again, the unmount (remount read-only) hasn't taken place until you see the
 "OK" and "Done" message appear on the screen.
 
-The loglevel'0'-'9' is useful when your console is being flooded with
-kernel messages you do not want to see. Setting '0' will prevent all but
+The loglevels '0'-'9' are useful when your console is being flooded with
+kernel messages you do not want to see. Selecting '0' will prevent all but
 the most urgent kernel messages from reaching your console. (They will
 still be logged if syslogd/klogd are alive, though.)
 
@@ -152,7 +159,7 @@ processes.
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 That happens to me, also. I've found that tapping shift, alt, and control
 on both sides of the keyboard, and hitting an invalid sysrq sequence again
-will fix the problem. (ie, something like alt-sysrq-z). Switching to another
+will fix the problem. (i.e., something like alt-sysrq-z). Switching to another
 virtual console (ALT+Fn) and then back again should also help.
 
 *  I hit SysRq, but nothing seems to happen, what's wrong?
@@ -174,11 +181,11 @@ handler function you will use, B) a help_msg string, that will print when SysRQ
 prints help, and C) an action_msg string, that will print right before your
 handler is called. Your handler must conform to the prototype in 'sysrq.h'.
 
-After the sysrq_key_op is created, you can call the macro 
-register_sysrq_key(int key, struct sysrq_key_op *op_p) that is defined in
-sysrq.h, this will register the operation pointed to by 'op_p' at table
-key 'key', if that slot in the table is blank. At module unload time, you must
-call the macro unregister_sysrq_key(int key, struct sysrq_key_op *op_p), which
+After the sysrq_key_op is created, you can call the kernel function
+register_sysrq_key(int key, struct sysrq_key_op *op_p); this will
+register the operation pointed to by 'op_p' at table key 'key',
+if that slot in the table is blank. At module unload time, you must call
+the function unregister_sysrq_key(int key, struct sysrq_key_op *op_p), which
 will remove the key op pointed to by 'op_p' from the key 'key', if and only if
 it is currently registered in that slot. This is in case the slot has been
 overwritten since you registered it.
@@ -186,15 +193,12 @@ overwritten since you registered it.
 The Magic SysRQ system works by registering key operations against a key op
 lookup table, which is defined in 'drivers/char/sysrq.c'. This key table has
 a number of operations registered into it at compile time, but is mutable,
-and 4 functions are exported for interface to it: __sysrq_lock_table,
-__sysrq_unlock_table, __sysrq_get_key_op, and __sysrq_put_key_op. The
-functions __sysrq_swap_key_ops and __sysrq_swap_key_ops_nolock are defined
-in the header itself, and the REGISTER and UNREGISTER macros are built from
-these. More complex (and dangerous!) manipulations of the table are possible
-using these functions, but you must be careful to always lock the table before
-you read or write from it, and to unlock it again when you are done. (And of
-course, to never ever leave an invalid pointer in the table). Null pointers in
-the table are always safe :)
+and 2 functions are exported for interface to it:
+        register_sysrq_key and unregister_sysrq_key.
+Of course, never ever leave an invalid pointer in the table. I.e., when
+your module that called register_sysrq_key() exits, it must call
+unregister_sysrq_key() to clean up the sysrq key table entry that it used.
+Null pointers in the table are always safe. :)
 
 If for some reason you feel the need to call the handle_sysrq function from
 within a function called by handle_sysrq, you must be aware that you are in
diff --git a/MAINTAINERS b/MAINTAINERS
index 1446cc41c12f..465e083237a7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -598,8 +598,6 @@ W:	http://linux-atm.sourceforge.net
 S:      Maintained
 
 ATMEL MACB ETHERNET DRIVER
-P:      Atmel AVR32 Support Team
-M:      avr32@atmel.com
 P:      Haavard Skinnemoen
 M:      hskinnemoen@atmel.com
 S:      Supported
@@ -620,8 +618,6 @@ T:	git kernel.org:/pub/scm/linux/kernel/git/dwmw2/audit-2.6.git
 S:      Maintained
 
 AVR32 ARCHITECTURE
-P:      Atmel AVR32 Support Team
-M:      avr32@atmel.com
 P:      Haavard Skinnemoen
 M:      hskinnemoen@atmel.com
 W:      http://www.atmel.com/products/AVR32/
@@ -630,8 +626,6 @@ W:	http://avrfreaks.net/
 S:      Supported
 
 AVR32/AT32AP MACHINE SUPPORT
-P:      Atmel AVR32 Support Team
-M:      avr32@atmel.com
 P:      Haavard Skinnemoen
 M:      hskinnemoen@atmel.com
 S:      Supported
@@ -2288,7 +2282,7 @@ P:	Jozsef Kadlecsik
 P:      Patrick McHardy
 M:      kaber@trash.net
 L:      netfilter-devel@lists.netfilter.org
-L:      netfilter@lists.netfilter.org
+L:      netfilter@lists.netfilter.org (subscribers-only)
 L:      coreteam@netfilter.org
 W:      http://www.netfilter.org/
 W:      http://www.iptables.org/
diff --git a/arch/i386/boot/compressed/relocs.c b/arch/i386/boot/compressed/relocs.c
index 468da89153c4..881951ca03e1 100644
--- a/arch/i386/boot/compressed/relocs.c
+++ b/arch/i386/boot/compressed/relocs.c
@@ -43,6 +43,8 @@ static int is_safe_abs_reloc(const char* sym_name)
                         /* Match found */
                         return 1;
         }
+        if (strncmp(sym_name, "__crc_", 6) == 0)
+                return 1;
         return 0;
 }
 
diff --git a/arch/i386/mach-default/setup.c b/arch/i386/mach-default/setup.c
index c511705c386c..cc2f519b2f7f 100644
--- a/arch/i386/mach-default/setup.c
+++ b/arch/i386/mach-default/setup.c
@@ -102,7 +102,7 @@ void __init time_init_hook(void)
  *      along the MCA bus.  Use this to hook into that chain if you will need
  *      it.
  **/
-void __init mca_nmi_hook(void)
+void mca_nmi_hook(void)
 {
         /* If I recall correctly, there's a whole bunch of other things that
          * we can do to check for NMI problems, but that's all I know about
diff --git a/arch/sparc/kernel/smp.c b/arch/sparc/kernel/smp.c
index 276f22881d0f..6b5f26b0fb75 100644
--- a/arch/sparc/kernel/smp.c
+++ b/arch/sparc/kernel/smp.c
@@ -292,8 +292,8 @@ int setup_profiling_timer(unsigned int multiplier)
 
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
-        extern void smp4m_boot_cpus(void);
-        extern void smp4d_boot_cpus(void);
+        extern void __init smp4m_boot_cpus(void);
+        extern void __init smp4d_boot_cpus(void);
         int i, cpuid, extra;
 
         printk("Entering SMP Mode...\n");
@@ -375,8 +375,8 @@ void __init smp_prepare_boot_cpu(void)
 
 int __cpuinit __cpu_up(unsigned int cpu)
 {
-        extern int smp4m_boot_one_cpu(int);
-        extern int smp4d_boot_one_cpu(int);
+        extern int __cpuinit smp4m_boot_one_cpu(int);
+        extern int __cpuinit smp4d_boot_one_cpu(int);
         int ret=0;
 
         switch(sparc_cpu_model) {
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index c80ea61e8ba0..c69de5d4863d 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -164,7 +164,7 @@ void __init smp4d_boot_cpus(void)
         local_flush_cache_all();
 }
 
-int smp4d_boot_one_cpu(int i)
+int __cpuinit smp4d_boot_one_cpu(int i)
 {
                         extern unsigned long sun4d_cpu_startup;
                         unsigned long *entry = &sun4d_cpu_startup;
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 13935235e066..7fd3cd5ddf21 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -215,7 +215,7 @@ static void sysrq_handle_showstate_blocked(int key, struct tty_struct *tty)
 }
 static struct sysrq_key_op sysrq_showstate_blocked_op = {
         .handler        = sysrq_handle_showstate_blocked,
-        .help_msg       = "showBlockedTasks",
+        .help_msg       = "shoW-blocked-tasks",
         .action_msg     = "Show Blocked State",
         .enable_mask    = SYSRQ_ENABLE_DUMP,
 };
@@ -315,15 +315,16 @@ static struct sysrq_key_op *sysrq_key_table[36] = {
         &sysrq_loglevel_op,             /* 9 */
 
         /*
-         * Don't use for system provided sysrqs, it is handled specially on
-         * sparc and will never arrive
+         * a: Don't use for system provided sysrqs, it is handled specially on
+         * sparc and will never arrive.
          */
         NULL,                           /* a */
         &sysrq_reboot_op,               /* b */
-        &sysrq_crashdump_op,            /* c */
+        &sysrq_crashdump_op,            /* c & ibm_emac driver debug */
         &sysrq_showlocks_op,            /* d */
         &sysrq_term_op,                 /* e */
         &sysrq_moom_op,                 /* f */
+        /* g: May be registered by ppc for kgdb */
         NULL,                           /* g */
         NULL,                           /* h */
         &sysrq_kill_op,                 /* i */
@@ -332,18 +333,19 @@ static struct sysrq_key_op *sysrq_key_table[36] = {
         NULL,                           /* l */
         &sysrq_showmem_op,              /* m */
         &sysrq_unrt_op,                 /* n */
-        /* This will often be registered as 'Off' at init time */
+        /* o: This will often be registered as 'Off' at init time */
         NULL,                           /* o */
         &sysrq_showregs_op,             /* p */
         NULL,                           /* q */
-        &sysrq_unraw_op,                        /* r */
+        &sysrq_unraw_op,                /* r */
         &sysrq_sync_op,                 /* s */
         &sysrq_showstate_op,            /* t */
         &sysrq_mountro_op,              /* u */
-        /* May be assigned at init time by SMP VOYAGER */
+        /* v: May be registered at init time by SMP VOYAGER */
         NULL,                           /* v */
-        NULL,                           /* w */
-        &sysrq_showstate_blocked_op,    /* x */
+        &sysrq_showstate_blocked_op,    /* w */
+        /* x: May be registered on ppc/powerpc for xmon */
+        NULL,                           /* x */
         NULL,                           /* y */
         NULL                            /* z */
 };
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 3b334af0c7b9..6c9bd5165bdb 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -1781,9 +1781,9 @@ done:
         return 1;
 }
 
-extern void pnpide_init(void);
-extern void pnpide_exit(void);
-extern void h8300_ide_init(void);
+extern void __init pnpide_init(void);
+extern void __exit pnpide_exit(void);
+extern void __init h8300_ide_init(void);
 
 /*
  * probe_for_hwifs() finds/initializes "known" IDE interfaces
@@ -2088,7 +2088,7 @@ int __init init_module (void)
         return ide_init();
 }
 
-void cleanup_module (void)
+void __exit cleanup_module (void)
 {
         int index;
 
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c
index a98b4d38b9dd..6fb6e50b8231 100644
--- a/drivers/ide/pci/via82cxxx.c
+++ b/drivers/ide/pci/via82cxxx.c
@@ -78,7 +78,7 @@ static struct via_isa_bridge {
         u8 rev_max;
         u16 flags;
 } via_isa_bridges[] = {
-        { "cx7000",     PCI_DEVICE_ID_VIA_CX700,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
+        { "cx700",      PCI_DEVICE_ID_VIA_CX700,    0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
         { "vt8237s",    PCI_DEVICE_ID_VIA_8237S,    0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
         { "vt6410",     PCI_DEVICE_ID_VIA_6410,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
         { "vt8251",     PCI_DEVICE_ID_VIA_8251,     0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index 27f2751c3baa..54c35c0b3181 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -1116,6 +1116,8 @@ static int vmx_vcpu_setup(struct kvm_vcpu *vcpu)
 
                 if (rdmsr_safe(index, &data_low, &data_high) < 0)
                         continue;
+                if (wrmsr_safe(index, data_low, data_high) < 0)
+                        continue;
                 data = data_low | ((u64)data_high << 32);
                 vcpu->host_msrs[j].index = index;
                 vcpu->host_msrs[j].reserved = 0;
diff --git a/drivers/net/hamradio/Kconfig b/drivers/net/hamradio/Kconfig
index 896aa02000d7..feb0ada7a025 100644
--- a/drivers/net/hamradio/Kconfig
+++ b/drivers/net/hamradio/Kconfig
@@ -113,7 +113,7 @@ config SCC_TRXECHO
 
 config BAYCOM_SER_FDX
         tristate "BAYCOM ser12 fullduplex driver for AX.25"
-        depends on AX25
+        depends on AX25 && !S390
         select CRC_CCITT
         ---help---
           This is one of two drivers for Baycom style simple amateur radio
@@ -133,7 +133,7 @@ config BAYCOM_SER_FDX
 
 config BAYCOM_SER_HDX
         tristate "BAYCOM ser12 halfduplex driver for AX.25"
-        depends on AX25
+        depends on AX25 && !S390
         select CRC_CCITT
         ---help---
           This is one of two drivers for Baycom style simple amateur radio
@@ -181,7 +181,7 @@ config BAYCOM_EPP
 
 config YAM
         tristate "YAM driver for AX.25"
-        depends on AX25
+        depends on AX25 && !S390
         help
           The YAM is a modem for packet radio which connects to the serial
           port and includes some of the functions of a Terminal Node
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 16945c2ba2ca..dcc0c1ab95ed 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -661,9 +661,11 @@ static void quirk_via_bridge(struct pci_dev *dev)
         /* See what bridge we have and find the device ranges */
         switch (dev->device) {
         case PCI_DEVICE_ID_VIA_82C686:
-                /* 82C686 is special */
-                via_vlink_dev_lo = 7;
-                via_vlink_dev_hi = 7;
+                /* The VT82C686 is special, it attaches to PCI and can have
+                   any device number. All its subdevices are functions of
+                   that single device. */
+                via_vlink_dev_lo = PCI_SLOT(dev->devfn);
+                via_vlink_dev_hi = PCI_SLOT(dev->devfn);
                 break;
         case PCI_DEVICE_ID_VIA_8237:
         case PCI_DEVICE_ID_VIA_8237A:
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index fab381ed853c..b2653c4afe9e 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -200,11 +200,8 @@ static struct pci_dev * pci_find_subsys(unsigned int vendor,
          * can cause some machines to crash.  So here we detect and flag that
          * situation and bail out early.
          */
-        if (unlikely(list_empty(&pci_devices))) {
-                printk(KERN_INFO "pci_find_subsys() called while pci_devices "
-                                "is still empty\n");
+        if (unlikely(list_empty(&pci_devices)))
                 return NULL;
-        }
         down_read(&pci_bus_sem);
         n = from ? from->global_list.next : pci_devices.next;
 
@@ -278,11 +275,8 @@ pci_get_subsys(unsigned int vendor, unsigned int device,
          * can cause some machines to crash.  So here we detect and flag that
          * situation and bail out early.
          */
-        if (unlikely(list_empty(&pci_devices))) {
-                printk(KERN_NOTICE "pci_get_subsys() called while pci_devices "
-                                "is still empty\n");
+        if (unlikely(list_empty(&pci_devices)))
                 return NULL;
-        }
         down_read(&pci_bus_sem);
         n = from ? from->global_list.next : pci_devices.next;
 
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 98338a569dc0..c59d6fbb7a6b 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -269,7 +269,7 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access)
                         "acc=%x, error=%d\n",
                         dentry->d_parent->d_name.name,
                         dentry->d_name.name,
-                        access, (error >> 24));
+                        access, ntohl(error));
         }
 out:
         if (exp && !IS_ERR(exp))
diff --git a/fs/proc/base.c b/fs/proc/base.c
index ff7a66850602..1a979ea3b379 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2328,13 +2328,23 @@ static int proc_task_readdir(struct file * filp, void * dirent, filldir_t filldi
 {
         struct dentry *dentry = filp->f_path.dentry;
         struct inode *inode = dentry->d_inode;
-        struct task_struct *leader = get_proc_task(inode);
+        struct task_struct *leader = NULL;
         struct task_struct *task;
         int retval = -ENOENT;
         ino_t ino;
         int tid;
         unsigned long pos = filp->f_pos;  /* avoiding "long long" filp->f_pos */
 
+        task = get_proc_task(inode);
+        if (!task)
+                goto out_no_task;
+        rcu_read_lock();
+        if (pid_alive(task)) {
+                leader = task->group_leader;
+                get_task_struct(leader);
+        }
+        rcu_read_unlock();
+        put_task_struct(task);
         if (!leader)
                 goto out_no_task;
         retval = 0;
diff --git a/include/asm-frv/Kbuild b/include/asm-frv/Kbuild
index c68e1680da01..966a9836d556 100644
--- a/include/asm-frv/Kbuild
+++ b/include/asm-frv/Kbuild
@@ -1 +1,7 @@
 include include/asm-generic/Kbuild.asm
+
+header-y += registers.h
+
+unifdef-y += termios.h
+unifdef-y += ptrace.h
+unifdef-y += page.h
diff --git a/include/asm-frv/page.h b/include/asm-frv/page.h
index 134cc0cdf6c2..213d92fd652a 100644
--- a/include/asm-frv/page.h
+++ b/include/asm-frv/page.h
@@ -76,8 +76,6 @@ extern unsigned long max_pfn;
 
 #endif /* __ASSEMBLY__ */
 
-#endif /* __KERNEL__ */
-
 #ifdef CONFIG_CONTIGUOUS_PAGE_ALLOC
 #define WANT_PAGE_VIRTUAL       1
 #endif
@@ -85,4 +83,6 @@ extern unsigned long max_pfn;
 #include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
+#endif /* __KERNEL__ */
+
 #endif /* _ASM_PAGE_H */
diff --git a/include/asm-frv/ptrace.h b/include/asm-frv/ptrace.h
index 9a2241b8eb1e..cf6934012b64 100644
--- a/include/asm-frv/ptrace.h
+++ b/include/asm-frv/ptrace.h
@@ -12,9 +12,11 @@
 #define _ASM_PTRACE_H
 
 #include <asm/registers.h>
+#ifdef __KERNEL__
 #include <asm/irq_regs.h>
 
 #define in_syscall(regs) (((regs)->tbr & TBR_TT) == TBR_TT_TRAP0)
+#endif
 
 
 #define PT_PSR          0
@@ -60,6 +62,7 @@
 #define PTRACE_GETFDPIC_EXEC    0       /* [addr] request the executable loadmap */
 #define PTRACE_GETFDPIC_INTERP  1       /* [addr] request the interpreter loadmap */
 
+#ifdef __KERNEL__
 #ifndef __ASSEMBLY__
 
 /*
@@ -74,6 +77,7 @@ register struct pt_regs *__frame asm("gr28");
 extern unsigned long user_stack(const struct pt_regs *);
 extern void show_regs(struct pt_regs *);
 #define profile_pc(regs) ((regs)->pc)
+#endif
 
 #endif /* !__ASSEMBLY__ */
 #endif /* _ASM_PTRACE_H */
diff --git a/include/asm-frv/termios.h b/include/asm-frv/termios.h
index b4a664e7f55c..8840cf95e8dd 100644
--- a/include/asm-frv/termios.h
+++ b/include/asm-frv/termios.h
@@ -69,6 +69,8 @@ struct termio {
 #define N_SYNC_PPP      14
 #define N_HCI           15  /* Bluetooth HCI UART */
 
+#ifdef __KERNEL__
 #include <asm-generic/termios.h>
+#endif
 
 #endif /* _ASM_TERMIOS_H */
diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h
index 188f72621776..e57ff136ee51 100644
--- a/include/asm-um/pgtable.h
+++ b/include/asm-um/pgtable.h
@@ -408,6 +408,15 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 
 #include <asm-generic/pgtable-nopud.h>
 
+#ifdef CONFIG_HIGHMEM
+/* Clear a kernel PTE and flush it from the TLB */
+#define kpte_clear_flush(ptep, vaddr)                                   \
+do {                                                                    \
+        pte_clear(&init_mm, vaddr, ptep);                               \
+        __flush_tlb_one(vaddr);                                         \
+} while (0)
+#endif
+
 #endif
 #endif
 
diff --git a/include/linux/efi.h b/include/linux/efi.h
index df1c91855f0e..f8ebd7c1ddb3 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -301,7 +301,7 @@ extern int __init efi_uart_console_only (void);
 extern void efi_initialize_iomem_resources(struct resource *code_resource,
                                         struct resource *data_resource);
 extern unsigned long efi_get_time(void);
-extern int __init efi_set_rtc_mmss(unsigned long nowtime);
+extern int efi_set_rtc_mmss(unsigned long nowtime);
 extern int is_available_memory(efi_memory_desc_t * md);
 extern struct efi_memory_map memmap;
 
diff --git a/kernel/fork.c b/kernel/fork.c
index fc723e595cd5..d57118da73ff 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1313,7 +1313,7 @@ noinline struct pt_regs * __devinit __attribute__((weak)) idle_regs(struct pt_re
         return regs;
 }
 
-struct task_struct * __devinit fork_idle(int cpu)
+struct task_struct * __cpuinit fork_idle(int cpu)
 {
         struct task_struct *task;
         struct pt_regs regs;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index fc5b5442e942..2c606cc922a5 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -989,8 +989,7 @@ int zone_watermark_ok(struct zone *z, int order, unsigned long mark,
                       int classzone_idx, int alloc_flags)
 {
         /* free_pages my go negative - that's OK */
-        unsigned long min = mark;
-        long free_pages = z->free_pages - (1 << order) + 1;
+        long min = mark, free_pages = z->free_pages - (1 << order) + 1;
         int o;
 
         if (alloc_flags & ALLOC_HIGH)
diff --git a/net/ipv4/netfilter/ip_conntrack_sip.c b/net/ipv4/netfilter/ip_conntrack_sip.c
index 3a26d63eed88..11c588a10e6b 100644
--- a/net/ipv4/netfilter/ip_conntrack_sip.c
+++ b/net/ipv4/netfilter/ip_conntrack_sip.c
@@ -283,10 +283,16 @@ static int skp_epaddr_len(const char *dptr, const char *limit, int *shift)
 {
         int s = *shift;
 
-        for (; dptr <= limit && *dptr != '@'; dptr++)
+        /* Search for @, but stop at the end of the line.
+         * We are inside a sip: URI, so we don't need to worry about
+         * continuation lines. */
+        while (dptr <= limit &&
+               *dptr != '@' && *dptr != '\r' && *dptr != '\n') {
                 (*shift)++;
+                dptr++;
+        }
 
-        if (*dptr == '@') {
+        if (dptr <= limit && *dptr == '@') {
                 dptr++;
                 (*shift)++;
         } else
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 2a7e4618f526..e3854696988d 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3393,7 +3393,7 @@ static void inline ipv6_store_devconf(struct ipv6_devconf *cnf,
 #ifdef CONFIG_IPV6_ROUTER_PREF
         array[DEVCONF_ACCEPT_RA_RTR_PREF] = cnf->accept_ra_rtr_pref;
         array[DEVCONF_RTR_PROBE_INTERVAL] = cnf->rtr_probe_interval;
-#ifdef CONFIV_IPV6_ROUTE_INFO
+#ifdef CONFIG_IPV6_ROUTE_INFO
         array[DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN] = cnf->accept_ra_rt_info_max_plen;
 #endif
 #endif
@@ -3898,7 +3898,7 @@ static struct addrconf_sysctl_table
                         .proc_handler   =       &proc_dointvec_jiffies,
                         .strategy       =       &sysctl_jiffies,
                 },
-#ifdef CONFIV_IPV6_ROUTE_INFO
+#ifdef CONFIG_IPV6_ROUTE_INFO
                 {
                         .ctl_name       =       NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN,
                         .procname       =       "accept_ra_rt_info_max_plen",
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 6a9f616de37d..39bb658f3c44 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1413,6 +1413,13 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
                 return;
         }
 
+        if (!ipv6_addr_equal(&skb->nh.ipv6h->daddr, target) &&
+            !(ipv6_addr_type(target) & IPV6_ADDR_LINKLOCAL)) {
+                ND_PRINTK2(KERN_WARNING
+                        "ICMPv6 Redirect: target address is not link-local.\n");
+                return;
+        }
+
         ndisc_flow_init(&fl, NDISC_REDIRECT, &saddr_buf, &skb->nh.ipv6h->saddr,
                         dev->ifindex);
 
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index cd10e44db015..2a2bcb303bfa 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -628,7 +628,7 @@ config NETFILTER_XT_MATCH_TCPMSS
 
 config NETFILTER_XT_MATCH_HASHLIMIT
         tristate '"hashlimit" match support'
-        depends on NETFILTER_XTABLES
+        depends on NETFILTER_XTABLES && (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n)
         help
           This option adds a `hashlimit' match.
 
diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c
index eb2a2411f97b..9dec11534678 100644
--- a/net/netfilter/nf_conntrack_sip.c
+++ b/net/netfilter/nf_conntrack_sip.c
@@ -303,10 +303,16 @@ static int skp_epaddr_len(struct nf_conn *ct, const char *dptr,
 {
         int s = *shift;
 
-        for (; dptr <= limit && *dptr != '@'; dptr++)
+        /* Search for @, but stop at the end of the line.
+         * We are inside a sip: URI, so we don't need to worry about
+         * continuation lines. */
+        while (dptr <= limit &&
+               *dptr != '@' && *dptr != '\r' && *dptr != '\n') {
                 (*shift)++;
+                dptr++;
+        }
 
-        if (*dptr == '@') {
+        if (dptr <= limit && *dptr == '@') {
                 dptr++;
                 (*shift)++;
         } else
diff --git a/net/netfilter/xt_connbytes.c b/net/netfilter/xt_connbytes.c
index d93cb096a675..5e32dfa2668b 100644
--- a/net/netfilter/xt_connbytes.c
+++ b/net/netfilter/xt_connbytes.c
@@ -52,6 +52,8 @@ match(const struct sk_buff *skb,
 {
         const struct xt_connbytes_info *sinfo = matchinfo;
         u_int64_t what = 0;     /* initialize to make gcc happy */
+        u_int64_t bytes = 0;
+        u_int64_t pkts = 0;
         const struct ip_conntrack_counter *counters;
 
         if (!(counters = nf_ct_get_counters(skb)))
@@ -89,29 +91,22 @@ match(const struct sk_buff *skb,
         case XT_CONNBYTES_AVGPKT:
                 switch (sinfo->direction) {
                 case XT_CONNBYTES_DIR_ORIGINAL:
-                        what = div64_64(counters[IP_CT_DIR_ORIGINAL].bytes,
-                                        counters[IP_CT_DIR_ORIGINAL].packets);
+                        bytes = counters[IP_CT_DIR_ORIGINAL].bytes;
+                        pkts  = counters[IP_CT_DIR_ORIGINAL].packets;
                         break;
                 case XT_CONNBYTES_DIR_REPLY:
-                        what = div64_64(counters[IP_CT_DIR_REPLY].bytes,
-                                        counters[IP_CT_DIR_REPLY].packets);
+                        bytes = counters[IP_CT_DIR_REPLY].bytes;
+                        pkts  = counters[IP_CT_DIR_REPLY].packets;
                         break;
                 case XT_CONNBYTES_DIR_BOTH:
-                        {
-                                u_int64_t bytes;
-                                u_int64_t pkts;
-                                bytes = counters[IP_CT_DIR_ORIGINAL].bytes +
-                                        counters[IP_CT_DIR_REPLY].bytes;
-                                pkts = counters[IP_CT_DIR_ORIGINAL].packets+
-                                        counters[IP_CT_DIR_REPLY].packets;
-
-                                /* FIXME_THEORETICAL: what to do if sum
-                                 * overflows ? */
-
-                                what = div64_64(bytes, pkts);
-                        }
+                        bytes = counters[IP_CT_DIR_ORIGINAL].bytes +
+                                counters[IP_CT_DIR_REPLY].bytes;
+                        pkts  = counters[IP_CT_DIR_ORIGINAL].packets +
+                                counters[IP_CT_DIR_REPLY].packets;
                         break;
                 }
+                if (pkts != 0)
+                        what = div64_64(bytes, pkts);
                 break;
         }
 
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 8bd30976cdee..6db77d1329f7 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -621,7 +621,13 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
         /* The receiver of the HEARTBEAT ACK should also perform an
          * RTT measurement for that destination transport address
          * using the time value carried in the HEARTBEAT ACK chunk.
+         * If the transport's rto_pending variable has been cleared,
+         * it was most likely due to a retransmit.  However, we want
+         * to re-enable it to properly update the rto.
          */
+        if (t->rto_pending == 0)
+                t->rto_pending = 1;
+
         hbinfo = (sctp_sender_hb_info_t *) chunk->skb->data;
         sctp_transport_update_rto(t, (jiffies - hbinfo->sent_at));