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authorBen Hutchings <ben@decadent.org.uk>2010-04-03 19:34:56 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-05-19 08:36:48 +0100
commitb2be05273a1744d175bf4b67f6665637bb9ac7a8 (patch)
treec0b6333fbc7a1834bfc0eec86dd204b1daacf1b4 /arch/s390
parent8954da1f82a468deeeae3683252b5440e7f4ccbe (diff)
downloadop-kernel-dev-b2be05273a1744d175bf4b67f6665637bb9ac7a8.zip
op-kernel-dev-b2be05273a1744d175bf4b67f6665637bb9ac7a8.tar.gz
panic: Allow warnings to set different taint flags
WARN() is used in some places to report firmware or hardware bugs that are then worked-around. These bugs do not affect the stability of the kernel and should not set the flag for TAINT_WARN. To allow for this, add WARN_TAINT() and WARN_TAINT_ONCE() macros that take a taint number as argument. Architectures that implement warnings using trap instructions instead of calls to warn_slowpath_*() now implement __WARN_TAINT(taint) instead of __WARN(). Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Helge Deller <deller@gmx.de> Tested-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/bug.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index 9beeb9d..bf90d1f 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -46,18 +46,18 @@
unreachable(); \
} while (0)
-#define __WARN() do { \
- __EMIT_BUG(BUGFLAG_WARNING); \
+#define __WARN_TAINT(taint) do { \
+ __EMIT_BUG(BUGFLAG_TAINT(taint)); \
} while (0)
#define WARN_ON(x) ({ \
int __ret_warn_on = !!(x); \
if (__builtin_constant_p(__ret_warn_on)) { \
if (__ret_warn_on) \
- __EMIT_BUG(BUGFLAG_WARNING); \
+ __WARN(); \
} else { \
if (unlikely(__ret_warn_on)) \
- __EMIT_BUG(BUGFLAG_WARNING); \
+ __WARN(); \
} \
unlikely(__ret_warn_on); \
})
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