taint: consolidate documentation

This consolidates the taint bit documentation into a single place with
both numeric and letter values.  Additionally adds the missing TAINT_AUX
documentation.

Link: http://lkml.kernel.org/r/1519084390-43867-3-git-send-email-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 19 deletions

diff --git a/kernel/panic.c b/kernel/panic.c
index af4cfa8eda22..5ceb9cbec4a2 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -328,27 +328,12 @@ const struct taint_flag taint_flags[TAINT_FLAGS_COUNT] = {
 };
 
 /**
- *      print_tainted - return a string to represent the kernel taint state.
+ * print_tainted - return a string to represent the kernel taint state.
  *
- *  'P' - Proprietary module has been loaded.
- *  'F' - Module has been forcibly loaded.
- *  'S' - SMP with CPUs not designed for SMP.
- *  'R' - User forced a module unload.
- *  'M' - System experienced a machine check exception.
- *  'B' - System has hit bad_page.
- *  'U' - Userspace-defined naughtiness.
- *  'D' - Kernel has oopsed before
- *  'A' - ACPI table overridden.
- *  'W' - Taint on warning.
- *  'C' - modules from drivers/staging are loaded.
- *  'I' - Working around severe firmware bug.
- *  'O' - Out-of-tree module has been loaded.
- *  'E' - Unsigned module has been loaded.
- *  'L' - A soft lockup has previously occurred.
- *  'K' - Kernel has been live patched.
- *  'X' - Auxiliary taint, for distros' use.
+ * For individual taint flag meanings, see Documentation/sysctl/kernel.txt
  *
- *      The string is overwritten by the next call to print_tainted().
+ * The string is overwritten by the next call to print_tainted(),
+ * but is always NULL terminated.
  */
 const char *print_tainted(void)
 {