sub $reg, imm is not a real MIPS instruction. The assembler replaces
that with 'addi $reg, -imm'. However, addi has been removed from R6,
so we replace the 'sub' instruction with 'addiu' instead.
Signed-off-by: Markos Chandras <markos.chandras@xxxxxxxxxx>
---
arch/mips/include/asm/spinlock.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h
index c6d06d383ef9..500050d3bda6 100644
--- a/arch/mips/include/asm/spinlock.h
+++ b/arch/mips/include/asm/spinlock.h
@@ -276,7 +276,7 @@ static inline void arch_read_unlock(arch_rwlock_t *rw)
do {
__asm__ __volatile__(
"1: ll %1, %2 # arch_read_unlock \n"
- " sub %1, 1 \n"
+ " addiu %1, -1 \n"
" sc %1, %0 \n"
: "=" GCC_OFF12_ASM() (rw->lock), "=&r" (tmp)
: GCC_OFF12_ASM() (rw->lock)
--
2.2.1
