22 files changed, 136 insertions, 23 deletions

diff --git a/.gitignore b/.gitignore
index 53e53f2791f8..27fd37621255 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,7 @@
 #
 # Top-level generic files
 #
+tags
 vmlinux*
 System.map
 Module.symvers
diff --git a/Documentation/BUG-HUNTING b/Documentation/BUG-HUNTING
index ca29242dbc38..65b97e1dbf70 100644
--- a/Documentation/BUG-HUNTING
+++ b/Documentation/BUG-HUNTING
@@ -1,3 +1,56 @@
+Table of contents
+=================
+
+Last updated: 20 December 2005
+
+Contents
+========
+
+- Introduction
+- Devices not appearing
+- Finding patch that caused a bug
+-- Finding using git-bisect
+-- Finding it the old way
+- Fixing the bug
+
+Introduction
+============
+
+Always try the latest kernel from kernel.org and build from source. If you are
+not confident in doing that please report the bug to your distribution vendor
+instead of to a kernel developer.
+
+Finding bugs is not always easy. Have a go though. If you can't find it don't
+give up. Report as much as you have found to the relevant maintainer. See
+MAINTAINERS for who that is for the subsystem you have worked on.
+
+Before you submit a bug report read REPORTING-BUGS.
+
+Devices not appearing
+=====================
+
+Often this is caused by udev. Check that first before blaming it on the
+kernel.
+
+Finding patch that caused a bug
+===============================
+
+
+
+Finding using git-bisect
+------------------------
+
+Using the provided tools with git makes finding bugs easy provided the bug is
+reproducible.
+
+Steps to do it:
+- start using git for the kernel source
+- read the man page for git-bisect
+- have fun
+
+Finding it the old way
+----------------------
+
 [Sat Mar  2 10:32:33 PST 1996 KERNEL_BUG-HOWTO lm@sgi.com (Larry McVoy)]
 
 This is how to track down a bug if you know nothing about kernel hacking.  
@@ -90,3 +143,63 @@ it does work and it lets non-hackers help fix bugs.  And it is cool
 because Linux snapshots will let you do this - something that you can't
 do with vendor supplied releases.
 
+Fixing the bug
+==============
+
+Nobody is going to tell you how to fix bugs. Seriously. You need to work it
+out. But below are some hints on how to use the tools.
+
+To debug a kernel, use objdump and look for the hex offset from the crash
+output to find the valid line of code/assembler. Without debug symbols, you
+will see the assembler code for the routine shown, but if your kernel has
+debug symbols the C code will also be available. (Debug symbols can be enabled
+in the kernel hacking menu of the menu configuration.) For example:
+
+    objdump -r -S -l --disassemble net/dccp/ipv4.o
+
+NB.: you need to be at the top level of the kernel tree for this to pick up
+your C files.
+
+If you don't have access to the code you can also debug on some crash dumps
+e.g. crash dump output as shown by Dave Miller.
+
+>    EIP is at ip_queue_xmit+0x14/0x4c0
+>     ...
+>    Code: 44 24 04 e8 6f 05 00 00 e9 e8 fe ff ff 8d 76 00 8d bc 27 00 00
+>    00 00 55 57  56 53 81 ec bc 00 00 00 8b ac 24 d0 00 00 00 8b 5d 08
+>    <8b> 83 3c 01 00 00 89 44  24 14 8b 45 28 85 c0 89 44 24 18 0f 85
+>
+>    Put the bytes into a "foo.s" file like this:
+>
+>           .text
+>           .globl foo
+>    foo:
+>           .byte  .... /* bytes from Code: part of OOPS dump */
+>
+>    Compile it with "gcc -c -o foo.o foo.s" then look at the output of
+>    "objdump --disassemble foo.o".
+>
+>    Output:
+>
+>    ip_queue_xmit:
+>        push       %ebp
+>        push       %edi
+>        push       %esi
+>        push       %ebx
+>        sub        $0xbc, %esp
+>        mov        0xd0(%esp), %ebp        ! %ebp = arg0 (skb)
+>        mov        0x8(%ebp), %ebx         ! %ebx = skb->sk
+>        mov        0x13c(%ebx), %eax       ! %eax = inet_sk(sk)->opt
+
+Another very useful option of the Kernel Hacking section in menuconfig is
+Debug memory allocations. This will help you see whether data has been
+initialised and not set before use etc. To see the values that get assigned
+with this look at mm/slab.c and search for POISON_INUSE. When using this an
+Oops will often show the poisoned data instead of zero which is the default.
+
+Once you have worked out a fix please submit it upstream. After all open
+source is about sharing what you do and don't you want to be recognised for
+your genius?
+
+Please do read Documentation/SubmittingPatches though to help your code get
+accepted.
diff --git a/Documentation/dvb/get_dvb_firmware b/Documentation/dvb/get_dvb_firmware
index bb55f49f2745..15fc8fbef67e 100644
--- a/Documentation/dvb/get_dvb_firmware
+++ b/Documentation/dvb/get_dvb_firmware
@@ -246,7 +246,7 @@ sub vp7041 {
 }
 
 sub dibusb {
-        my $url = "http://www.linuxtv.org/downloads/firmware/dvb-dibusb-5.0.0.11.fw";
+        my $url = "http://www.linuxtv.org/downloads/firmware/dvb-usb-dibusb-5.0.0.11.fw";
         my $outfile = "dvb-dibusb-5.0.0.11.fw";
         my $hash = "fa490295a527360ca16dcdf3224ca243";
 
diff --git a/Documentation/filesystems/isofs.txt b/Documentation/filesystems/isofs.txt
index 424585ff6ea1..758e50401c16 100644
--- a/Documentation/filesystems/isofs.txt
+++ b/Documentation/filesystems/isofs.txt
@@ -9,9 +9,9 @@ when using discs encoded using Microsoft's Joliet extensions.
   iocharset=name Character set to use for converting from Unicode to
                 ASCII.  Joliet filenames are stored in Unicode format, but
                 Unix for the most part doesn't know how to deal with Unicode.
-                There is also an option of doing UTF8 translations with the
+                There is also an option of doing UTF-8 translations with the
                 utf8 option.
-  utf8          Encode Unicode names in UTF8 format. Default is no.
+  utf8          Encode Unicode names in UTF-8 format. Default is no.
 
 Mount options unique to the isofs filesystem.
   block=512     Set the block size for the disk to 512 bytes
diff --git a/Documentation/filesystems/jfs.txt b/Documentation/filesystems/jfs.txt
index 3e992daf99ad..bae128663748 100644
--- a/Documentation/filesystems/jfs.txt
+++ b/Documentation/filesystems/jfs.txt
@@ -6,7 +6,7 @@ The following mount options are supported:
 
 iocharset=name  Character set to use for converting from Unicode to
                 ASCII.  The default is to do no conversion.  Use
-                iocharset=utf8 for UTF8 translations.  This requires
+                iocharset=utf8 for UTF-8 translations.  This requires
                 CONFIG_NLS_UTF8 to be set in the kernel .config file.
                 iocharset=none specifies the default behavior explicitly.
 
diff --git a/Documentation/filesystems/vfat.txt b/Documentation/filesystems/vfat.txt
index 5ead20c6c744..2001abbc60e6 100644
--- a/Documentation/filesystems/vfat.txt
+++ b/Documentation/filesystems/vfat.txt
@@ -28,16 +28,16 @@ iocharset=name -- Character set to use for converting between the
                  know how to deal with Unicode.
                  By default, FAT_DEFAULT_IOCHARSET setting is used.
 
-                 There is also an option of doing UTF8 translations
+                 There is also an option of doing UTF-8 translations
                  with the utf8 option.
 
                  NOTE: "iocharset=utf8" is not recommended. If unsure,
                  you should consider the following option instead.
 
-utf8=<bool>   -- UTF8 is the filesystem safe version of Unicode that
+utf8=<bool>   -- UTF-8 is the filesystem safe version of Unicode that
                  is used by the console.  It can be be enabled for the
                  filesystem with this option. If 'uni_xlate' gets set,
-                 UTF8 gets disabled.
+                 UTF-8 gets disabled.
 
 uni_xlate=<bool> -- Translate unhandled Unicode characters to special
                  escaped sequences.  This would let you backup and
diff --git a/Documentation/spinlocks.txt b/Documentation/spinlocks.txt
index c2122996631e..a661d684768e 100644
--- a/Documentation/spinlocks.txt
+++ b/Documentation/spinlocks.txt
@@ -9,7 +9,7 @@ removed soon. So for any new code dynamic initialization should be used:
    static int __init xxx_init(void)
    {
         spin_lock_init(&xxx_lock);
-        rw_lock_init(&xxx_rw_lock);
+        rwlock_init(&xxx_rw_lock);
         ...
    }
 
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 89b268321321..83f5c5984d1a 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -326,7 +326,7 @@ EXPORT_SYMBOL_GPL(platform_device_register);
  *      platform_device_unregister - unregister a platform-level device
  *      @pdev:  platform device we're unregistering
  *
- *      Unregistration is done in 2 steps. Fisrt we release all resources
+ *      Unregistration is done in 2 steps. First we release all resources
  *      and remove it from the subsystem, then we drop reference count by
  *      calling platform_device_put().
  */
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index b9c786ee6fad..cf39cf9aac25 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -2137,7 +2137,7 @@ static void start_io( ctlr_info_t *h)
                         break;
                 }
 
-                /* Get the frist entry from the Request Q */ 
+                /* Get the first entry from the Request Q */ 
                 removeQ(&(h->reqQ), c);
                 h->Qdepth--;
         
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index e0b11095b9da..00993e8ba589 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -1914,7 +1914,7 @@ config E1000_DISABLE_PACKET_SPLIT
         depends on E1000
         help
           Say Y here if you want to use the legacy receive path for PCI express
-          hadware.
+          hardware.
 
           If in doubt, say N.
 
diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index a86436a7a606..acd2a3f005f1 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -1404,7 +1404,7 @@ add_claw_reads(struct net_device *dev, struct ccwbk* p_first,
 
         if ( privptr-> p_read_active_first ==NULL ) {
 #ifdef DEBUGMSG
-                printk(KERN_INFO "%s:%s p_read_active_frist == NULL \n",
+                printk(KERN_INFO "%s:%s p_read_active_first == NULL \n",
                         dev->name,__FUNCTION__);
                 printk(KERN_INFO "%s:%s Read active first/last changed \n",
                         dev->name,__FUNCTION__);
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index 38ede24b22a6..39729460b00e 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -902,7 +902,7 @@ static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
         int ret;
 
         /*
-         * Frist wait for all commands to complete
+         * First wait for all commands to complete
          */
         ret = megasas_generic_reset(scmd);
 
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 2d365cb8eec6..dd6048ce0532 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -561,7 +561,7 @@ befs_utf2nls(struct super_block *sb, const char *in,
  * @sb: Superblock
  * @src: Input string buffer in NLS format
  * @srclen: Length of input string in bytes
- * @dest: The output string in UTF8 format
+ * @dest: The output string in UTF-8 format
  * @destlen: Length of the output buffer
  * 
  * Converts input string @src, which is in the format of the loaded NLS map,
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index d335015473a5..cb68efba35db 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -160,7 +160,7 @@ improperly zeroed buffer in CIFS Unix extensions set times call.
 Version 1.25
 ------------
 Fix internationalization problem in cifs readdir with filenames that map to 
-longer UTF8 strings than the string on the wire was in Unicode.  Add workaround
+longer UTF-8 strings than the string on the wire was in Unicode.  Add workaround
 for readdir to netapp servers. Fix search rewind (seek into readdir to return 
 non-consecutive entries).  Do not do readdir when server negotiates 
 buffer size to small to fit filename. Add support for reading POSIX ACLs from
diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index db0de5c621c7..4095bc149eb1 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -114,7 +114,7 @@ static inline int fat_get_entry(struct inode *dir, loff_t *pos,
 }
 
 /*
- * Convert Unicode 16 to UTF8, translated Unicode, or ASCII.
+ * Convert Unicode 16 to UTF-8, translated Unicode, or ASCII.
  * If uni_xlate is enabled and we can't get a 1:1 conversion, use a
  * colon as an escape character since it is normally invalid on the vfat
  * filesystem. The following four characters are the hexadecimal digits
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index e7f4aa7fc686..e78d7b4842cc 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1101,7 +1101,7 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug,
                         return -EINVAL;
                 }
         }
-        /* UTF8 doesn't provide FAT semantics */
+        /* UTF-8 doesn't provide FAT semantics */
         if (!strcmp(opts->iocharset, "utf8")) {
                 printk(KERN_ERR "FAT: utf8 is not a recommended IO charset"
                        " for FAT filesystems, filesystem will be case sensitive!\n");
diff --git a/fs/isofs/joliet.c b/fs/isofs/joliet.c
index 2931de7f1a6a..81a90e170ac3 100644
--- a/fs/isofs/joliet.c
+++ b/fs/isofs/joliet.c
@@ -11,7 +11,7 @@
 #include "isofs.h"
 
 /*
- * Convert Unicode 16 to UTF8 or ASCII.
+ * Convert Unicode 16 to UTF-8 or ASCII.
  */
 static int
 uni16_to_x8(unsigned char *ascii, u16 *uni, int len, struct nls_table *nls)
diff --git a/fs/nls/Kconfig b/fs/nls/Kconfig
index 0ab8f00bdbb2..976ecccd6f56 100644
--- a/fs/nls/Kconfig
+++ b/fs/nls/Kconfig
@@ -491,7 +491,7 @@ config NLS_KOI8_U
           (koi8-u) and Belarusian (koi8-ru) character sets.
 
 config NLS_UTF8
-        tristate "NLS UTF8"
+        tristate "NLS UTF-8"
         depends on NLS
         help
           If you want to display filenames with native language characters
diff --git a/include/asm-mips/termbits.h b/include/asm-mips/termbits.h
index c29c65b7818e..fa6d04dac56b 100644
--- a/include/asm-mips/termbits.h
+++ b/include/asm-mips/termbits.h
@@ -77,7 +77,7 @@ struct termios {
 #define IXANY   0004000         /* Any character will restart after stop.  */
 #define IXOFF   0010000         /* Enable start/stop input control.  */
 #define IMAXBEL 0020000         /* Ring bell when input queue is full.  */
-#define IUTF8   0040000         /* Input is UTF8 */
+#define IUTF8   0040000         /* Input is UTF-8 */
 
 /* c_oflag bits */
 #define OPOST   0000001         /* Perform output processing.  */
diff --git a/include/linux/device.h b/include/linux/device.h
index 6d2345d86082..f6e72a65a3f2 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -400,7 +400,7 @@ extern struct device * get_device(struct device * dev);
 extern void put_device(struct device * dev);
 
 
-/* drivers/base/power.c */
+/* drivers/base/power/shutdown.c */
 extern void device_shutdown(void);
 
 
diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h
index e933e2a355ad..8bcd9450d926 100644
--- a/include/linux/msdos_fs.h
+++ b/include/linux/msdos_fs.h
@@ -199,7 +199,7 @@ struct fat_mount_options {
                  sys_immutable:1, /* set = system files are immutable */
                  dotsOK:1,        /* set = hidden and system files are named '.filename' */
                  isvfat:1,        /* 0=no vfat long filename support, 1=vfat support */
-                 utf8:1,          /* Use of UTF8 character set (Default) */
+                 utf8:1,          /* Use of UTF-8 character set (Default) */
                  unicode_xlate:1, /* create escape sequences for unhandled Unicode */
                  numtail:1,       /* Does first alias have a numeric '~1' type tail? */
                  atari:1,         /* Use Atari GEMDOS variation of MS-DOS fs */
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index fd2e26b6f966..85c52fd26bff 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -51,7 +51,6 @@
 #define HARD_MSGMAX     (131072/sizeof(void*))
 #define DFLT_MSGSIZEMAX 8192    /* max message size */
 
-#define NOTIFY_COOKIE_LEN       32
 
 struct ext_wait_queue {         /* queue of sleeping tasks */
         struct task_struct *task;