x86: use _ASM_EXTABLE macro in include/asm-x86/system.h

Use the _ASM_EXTABLE macro from <asm/asm.h>, instead of open-coding
__ex_table entires in include/asm-x86/system.h.

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>

diff --git a/include/asm-x86/system.h b/include/asm-x86/system.h
index ee32ef9367f4f25b1c87bf435d2c80ed8586c9c9..428348e990bf182c801ef55e20ed64a56f217154 100644 (file)
--- a/include/asm-x86/system.h
+++ b/include/asm-x86/system.h
@@ -130,10 +130,7 @@ extern void load_gs_index(unsigned);
                "movl %k1, %%" #seg "\n\t"      \
                "jmp 2b\n"                      \
                ".previous\n"                   \
-               ".section __ex_table,\"a\"\n\t" \
-               _ASM_ALIGN "\n\t"               \
-               _ASM_PTR " 1b,3b\n"             \
-               ".previous"                     \
+               _ASM_EXTABLE(1b,3b)             \
                : :"r" (value), "r" (0))
 
 
@@ -214,12 +211,10 @@ static inline unsigned long native_read_cr4_safe(void)
        /* This could fault if %cr4 does not exist. In x86_64, a cr4 always
         * exists, so it will never fail. */
 #ifdef CONFIG_X86_32
-       asm volatile("1: mov %%cr4, %0          \n"
-               "2:                             \n"
-               ".section __ex_table,\"a\"      \n"
-               ".long 1b,2b                    \n"
-               ".previous                      \n"
-               : "=r" (val), "=m" (__force_order) : "0" (0));
+       asm volatile("1: mov %%cr4, %0\n"
+                    "2:\n"
+                    _ASM_EXTABLE(1b,2b)
+                    : "=r" (val), "=m" (__force_order) : "0" (0));
 #else
        val = native_read_cr4();
 #endif