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>

1 files changed, 2 insertions, 7 deletions

diff --git a/arch/mips/include/asm/system.h b/arch/mips/include/asm/system.h
index 23f68b40d4bb..cc7262ff0765 100644
--- a/arch/mips/include/asm/system.h
+++ b/arch/mips/include/asm/system.h
@@ -66,16 +66,11 @@ do {									\
 #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 {                                                                    \