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| author |   Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2007-04-12 20:02:54 +0900 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2007-04-20 14:58:37 +0100 |
| commit | ba755f8ec80fdbf2b5212622eabf7355464c6327 (patch) | |
| tree | 211f9963c94d740a629c0a72fcacdb1761506873 /include/asm-mips/bug.h | |
| parent | [MIPS] Retry {save,restore}_fp_context if failed in atomic context. (diff) | |
| download | linux-dev-ba755f8ec80fdbf2b5212622eabf7355464c6327.tar.xz linux-dev-ba755f8ec80fdbf2b5212622eabf7355464c6327.zip | |
[MIPS] Fix BUG(), BUG_ON() handling
With commit 63dc68a8cf60cb110b147dab1704d990808b39e2, kernel can not
handle BUG() and BUG_ON() properly since get_user() returns false for
kernel code. Use __get_user() to skip unnecessary access_ok(). This
patch also make BRK_BUG code encoded in the TNE instruction.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to '')
| -rw-r--r-- | include/asm-mips/bug.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-mips/bug.h b/include/asm-mips/bug.h index 4d560a533940..7eb63de808bc 100644 --- a/include/asm-mips/bug.h +++ b/include/asm-mips/bug.h @@ -18,7 +18,8 @@ do { \ #define BUG_ON(condition) \ do { \ - __asm__ __volatile__("tne $0, %0" : : "r" (condition)); \ + __asm__ __volatile__("tne $0, %0, %1" \ + : : "r" (condition), "i" (BRK_BUG)); \ } while (0) #define HAVE_ARCH_BUG_ON |