mirror of https://gitee.com/openkylin/linux.git
x86: use _ASM_EXTABLE macro in arch/x86/lib/mmx_32.c
Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding __ex_table entires in arch/x86/lib/mmx_32.c. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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@ -4,6 +4,7 @@
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#include <linux/hardirq.h>
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#include <linux/module.h>
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#include <asm/asm.h>
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#include <asm/i387.h>
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@ -50,10 +51,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
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"3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
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" jmp 2b\n"
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".previous\n"
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".section __ex_table,\"a\"\n"
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" .align 4\n"
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" .long 1b, 3b\n"
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".previous"
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_ASM_EXTABLE(1b,3b)
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: : "r" (from) );
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@ -81,10 +79,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
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"3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
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" jmp 2b\n"
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".previous\n"
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".section __ex_table,\"a\"\n"
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" .align 4\n"
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" .long 1b, 3b\n"
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".previous"
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_ASM_EXTABLE(1b,3b)
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: : "r" (from), "r" (to) : "memory");
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from+=64;
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to+=64;
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@ -181,10 +176,7 @@ static void fast_copy_page(void *to, void *from)
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"3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
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" jmp 2b\n"
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".previous\n"
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".section __ex_table,\"a\"\n"
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" .align 4\n"
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" .long 1b, 3b\n"
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".previous"
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_ASM_EXTABLE(1b,3b)
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: : "r" (from) );
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for(i=0; i<(4096-320)/64; i++)
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@ -211,10 +203,7 @@ static void fast_copy_page(void *to, void *from)
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"3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
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" jmp 2b\n"
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".previous\n"
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".section __ex_table,\"a\"\n"
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" .align 4\n"
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" .long 1b, 3b\n"
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".previous"
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_ASM_EXTABLE(1b,3b)
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: : "r" (from), "r" (to) : "memory");
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from+=64;
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to+=64;
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@ -311,10 +300,7 @@ static void fast_copy_page(void *to, void *from)
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"3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
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" jmp 2b\n"
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".previous\n"
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".section __ex_table,\"a\"\n"
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" .align 4\n"
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" .long 1b, 3b\n"
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".previous"
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_ASM_EXTABLE(1b,3b)
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: : "r" (from) );
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for(i=0; i<4096/64; i++)
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@ -341,10 +327,7 @@ static void fast_copy_page(void *to, void *from)
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"3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
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" jmp 2b\n"
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".previous\n"
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".section __ex_table,\"a\"\n"
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" .align 4\n"
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" .long 1b, 3b\n"
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".previous"
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_ASM_EXTABLE(1b,3b)
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: : "r" (from), "r" (to) : "memory");
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from+=64;
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to+=64;
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