From: Roland McGrath Date: Wed, 30 Jan 2008 12:30:45 +0000 (+0100) Subject: x86: desc_empty X-Git-Tag: v2.6.25-rc1~1143^2~722 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=12c3cbbb7e3218b1c3ed4c97b3496fc3f94ea967;p=platform%2Fkernel%2Flinux-3.10.git x86: desc_empty This replaces the desc_empty macro with an inline. It now handles easily any of the four different types used between 32/64 code to refer to these 8 bytes. It's identical in both asm-x86/processor_64.h and asm-x86/processor_32.h, so if these files ever get merged this function can be in the common code. This also removes the desc_equal macro because nothing uses it. Signed-off-by: Roland McGrath Cc: Andrew Morton Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h index 3b51a18..2540bf8 100644 --- a/include/asm-x86/processor_32.h +++ b/include/asm-x86/processor_32.h @@ -28,11 +28,12 @@ struct desc_struct { unsigned long a,b; }; -#define desc_empty(desc) \ - (!((desc)->a | (desc)->b)) +static inline int desc_empty(const void *ptr) +{ + const u32 *desc = ptr; + return !(desc[0] | desc[1]); +} -#define desc_equal(desc1, desc2) \ - (((desc1)->a == (desc2)->a) && ((desc1)->b == (desc2)->b)) /* * Default implementation of macro that returns current * instruction pointer ("program counter"). diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h index 2ae8ceb..20d8935 100644 --- a/include/asm-x86/processor_64.h +++ b/include/asm-x86/processor_64.h @@ -30,11 +30,11 @@ #define VIP_MASK 0x00100000 /* virtual interrupt pending */ #define ID_MASK 0x00200000 -#define desc_empty(desc) \ - (!((desc)->a | (desc)->b)) - -#define desc_equal(desc1, desc2) \ - (((desc1)->a == (desc2)->a) && ((desc1)->b == (desc2)->b)) +static inline int desc_empty(const void *ptr) +{ + const u32 *desc = ptr; + return !(desc[0] | desc[1]); +} /* * Default implementation of macro that returns current