From 2993ae3305ad10b41e0d0bc2662f7754ee8e30fa Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 21 Jan 2014 10:22:09 +0300 Subject: x86/AMD/NB: Fix amd_set_subcaches() parameter type This is under CAP_SYS_ADMIN, but Smatch complains that mask comes from the user and the test for "mask > 0xf" can underflow. The fix is simple: amd_set_subcaches() should hand down not an 'int' but an 'unsigned long' like it was originally indended to do. Signed-off-by: Dan Carpenter Acked-by: Borislav Petkov Cc: Borislav Petkov Cc: Daniel J Blueman Link: http://lkml.kernel.org/r/20140121072209.GA22095@elgon.mountain Signed-off-by: Ingo Molnar --- arch/x86/include/asm/amd_nb.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/include/asm/amd_nb.h') diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h index a54ee1d..aaac3b2 100644 --- a/arch/x86/include/asm/amd_nb.h +++ b/arch/x86/include/asm/amd_nb.h @@ -19,7 +19,7 @@ extern int amd_cache_northbridges(void); extern void amd_flush_garts(void); extern int amd_numa_init(void); extern int amd_get_subcaches(int); -extern int amd_set_subcaches(int, int); +extern int amd_set_subcaches(int, unsigned long); struct amd_l3_cache { unsigned indices; -- cgit v1.1