MIPS: Rewrite clearing of ll_bit on context switch in C
This also means there is now only one implementation not 3 left.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/include/asm/system.h b/arch/mips/include/asm/system.h
index 23f68b4..cc7262f 100644
--- a/arch/mips/include/asm/system.h
+++ b/arch/mips/include/asm/system.h
@@ -66,16 +66,11 @@
#define __mips_mt_fpaff_switch_to(prev) do { (void) (prev); } while (0)
#endif
-#ifdef CONFIG_CPU_HAS_LLSC
-#define __clear_software_ll_bit() do { } while (0)
-#else
-extern unsigned long ll_bit;
-
#define __clear_software_ll_bit() \
do { \
- ll_bit = 0; \
+ if (!__builtin_constant_p(cpu_has_llsc) || !cpu_has_llsc) \
+ ll_bit = 0; \
} while (0)
-#endif
#define switch_to(prev, next, last) \
do { \
