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 <roland@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Родитель
df5d438e33
Коммит
12c3cbbb7e
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@ -28,11 +28,12 @@ struct desc_struct {
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unsigned long a,b;
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unsigned long a,b;
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};
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};
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#define desc_empty(desc) \
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static inline int desc_empty(const void *ptr)
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(!((desc)->a | (desc)->b))
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{
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const u32 *desc = ptr;
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return !(desc[0] | desc[1]);
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}
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#define desc_equal(desc1, desc2) \
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(((desc1)->a == (desc2)->a) && ((desc1)->b == (desc2)->b))
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/*
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/*
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* Default implementation of macro that returns current
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* Default implementation of macro that returns current
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* instruction pointer ("program counter").
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* instruction pointer ("program counter").
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@ -30,11 +30,11 @@
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#define VIP_MASK 0x00100000 /* virtual interrupt pending */
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#define VIP_MASK 0x00100000 /* virtual interrupt pending */
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#define ID_MASK 0x00200000
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#define ID_MASK 0x00200000
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#define desc_empty(desc) \
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static inline int desc_empty(const void *ptr)
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(!((desc)->a | (desc)->b))
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{
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const u32 *desc = ptr;
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#define desc_equal(desc1, desc2) \
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return !(desc[0] | desc[1]);
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(((desc1)->a == (desc2)->a) && ((desc1)->b == (desc2)->b))
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}
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/*
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/*
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* Default implementation of macro that returns current
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* Default implementation of macro that returns current
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