linux-toradex.git/include/linux/kernel.h, branch v3.3-rc4

treewide: convert uses of ATTRIB_NORETURN to __noreturn

2012-01-13T04:13:03+00:00

Use the more commonly used __noreturn instead of ATTRIB_NORETURN.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Joe Perches 
Cc: Ingo Molnar 
Cc: Peter Zijlstra 
Cc: Haavard Skinnemoen 
Cc: Hans-Christian Egtvedt 
Cc: Tony Luck 
Cc: Fenghua Yu 
Acked-by: Geert Uytterhoeven 
Acked-by: Ralf Baechle 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Martin Schwidefsky 
Cc: Heiko Carstens 
Cc: Chris Metcalf 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

treewide: remove useless NORET_TYPE macro and uses

2012-01-13T04:13:03+00:00

It's a very old and now unused prototype marking so just delete it.

Neaten panic pointer argument style to keep checkpatch quiet.

Signed-off-by: Joe Perches 
Cc: Ingo Molnar 
Cc: Peter Zijlstra 
Cc: Haavard Skinnemoen 
Cc: Hans-Christian Egtvedt 
Cc: Tony Luck 
Cc: Fenghua Yu 
Acked-by: Geert Uytterhoeven 
Acked-by: Ralf Baechle 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Martin Schwidefsky 
Cc: Heiko Carstens 
Cc: Chris Metcalf 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

kernel.h: neaten panic prototype

2012-01-13T04:13:02+00:00

Use __printf macro.
Convert NORET_AND to ATTRIB_NORET.
Use the normal kernel style for pointer arguments.

Signed-off-by: Joe Perches 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-01-12T03:13:04+00:00

* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, reboot: Fix typo in nmi reboot path
  x86, NMI: Add to_cpumask() to silence compile warning
  x86, NMI: NMI selftest depends on the local apic
  x86: Add stack top margin for stack overflow checking
  x86, NMI: NMI-selftest should handle the UP case properly
  x86: Fix the 32-bit stackoverflow-debug build
  x86, NMI: Add knob to disable using NMI IPIs to stop cpus
  x86, NMI: Add NMI IPI selftest
  x86, reboot: Use NMI instead of REBOOT_VECTOR to stop cpus
  x86: Clean up the range of stack overflow checking
  x86: Panic on detection of stack overflow
  x86: Check stack overflow in detail

kernel.h: add BUILD_BUG() macro

2012-01-11T00:30:42+00:00

We can place this in definitions that we expect the compiler to remove by
dead code elimination.  If this assertion fails, we get a nice error
message at build time.

The GCC function attribute error("message") was added in version 4.3, so
we define a new macro __linktime_error(message) to expand to this for
GCC-4.3 and later.  This will give us an error diagnostic from the
compiler on the line that fails.  For other compilers
__linktime_error(message) expands to nothing, and we have to be content
with a link time error, but at least we will still get a build error.

BUILD_BUG() expands to the undefined function __build_bug_failed() and
will fail at link time if the compiler ever emits code for it.  On GCC-4.3
and later, attribute((error())) is used so that the failure will be noted
at compile time instead.

Signed-off-by: David Daney 
Acked-by: David Rientjes 
Cc: DM 
Cc: Ralf Baechle 
Acked-by: David Howells 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

x86: Panic on detection of stack overflow

2011-12-05T10:37:47+00:00

Currently, messages are just output on the detection of stack
overflow, which is not sufficient for systems that need a
high reliability. This is because in general the overflow may
corrupt data, and the additional corruption may occur due to
reading them unless systems stop.

This patch adds the sysctl parameter
kernel.panic_on_stackoverflow and causes a panic when detecting
the overflows of kernel, IRQ and exception stacks except user
stack according to the parameter. It is disabled by default.

Signed-off-by: Mitsuo Hayasaka 
Cc: yrl.pp-manager.tt@hitachi.com
Cc: Randy Dunlap 
Cc: "H. Peter Anvin" 
Link: http://lkml.kernel.org/r/20111129060836.11076.12323.stgit@ltc219.sdl.hitachi.co.jp
Signed-off-by: Ingo Molnar

module,bug: Add TAINT_OOT_MODULE flag for modules not built in-tree

2011-11-06T21:24:42+00:00

Use of the GPL or a compatible licence doesn't necessarily make the code
any good.  We already consider staging modules to be suspect, and this
should also be true for out-of-tree modules which may receive very
little review.

Signed-off-by: Ben Hutchings 
Reviewed-by: Dave Jones 
Acked-by: Greg Kroah-Hartman 
Signed-off-by: Rusty Russell  (patched oops-tracing.txt)

kernel.h/checkpatch: mark strict_strto and simple_strto as obsolete

2011-11-01T00:30:57+00:00

Mark obsolete/deprecated strict_strto and simple_strto functions
and macros as obsolete.

Update checkpatch to warn about their use.

Signed-off-by: Joe Perches 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

lib: rename pack_hex_byte() to hex_byte_pack()

2011-11-01T00:30:56+00:00

As suggested by Andrew Morton in [1] there is better to have most
significant part first in the function name.

[1] https://lkml.org/lkml/2011/9/20/22

There is no functional change.

Signed-off-by: Andy Shevchenko 
Cc: Jesper Nilsson 
Cc: David Howells 
Cc: Koichi Yasutake 
Cc: Jason Wessel 
Cc: Mimi Zohar 
Cc: James Morris 
Cc: OGAWA Hirofumi 
Cc: "John W. Linville" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

treewide: use printf not attribute__((format(printf,...)))

2011-11-01T00:30:54+00:00

Standardize the style for compiler based printf format verification.
Standardized the location of __printf too.

Done via script and a little typing.

$ grep -rPl --include=*.[ch] -w "__attribute__" * | \
  grep -vP "^(tools|scripts|include/linux/compiler-gcc.h)" | \
  xargs perl -n -i -e 'local $/; while (<>) { s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf\s*,\s*(.+)\s*,\s*(.+)\s*\)\s*\)\s*\)/__printf($1, $2)/g ; print; }'

[akpm@linux-foundation.org: revert arch bits]
Signed-off-by: Joe Perches 
Cc: "Kirill A. Shutemov" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds