From: Wang Xuerui <git@xxxxxxxxxx> commit 3e86460ebe2340df6a33b35a55312cc369bdcbd0 upstream. Somehow these LL/SC usages are not taken care of, breaking Loongson builds. Add the SYNCs appropriately. Signed-off-by: Wang Xuerui <git@xxxxxxxxxx> Signed-off-by: Paul Burton <paulburton@xxxxxxxxxx> Cc: linux-mips@xxxxxxxxxxxxxxx Cc: Huacai Chen <chenhc@xxxxxxxxxx> Cc: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> # v5.5+ Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/mips/include/asm/local.h | 4 ++++ 1 file changed, 4 insertions(+) --- a/arch/mips/include/asm/local.h +++ b/arch/mips/include/asm/local.h @@ -37,6 +37,7 @@ static __inline__ long local_add_return( __asm__ __volatile__( " .set push \n" " .set arch=r4000 \n" + __SYNC(full, loongson3_war) " \n" "1:" __LL "%1, %2 # local_add_return \n" " addu %0, %1, %3 \n" __SC "%0, %2 \n" @@ -52,6 +53,7 @@ static __inline__ long local_add_return( __asm__ __volatile__( " .set push \n" " .set "MIPS_ISA_ARCH_LEVEL" \n" + __SYNC(full, loongson3_war) " \n" "1:" __LL "%1, %2 # local_add_return \n" " addu %0, %1, %3 \n" __SC "%0, %2 \n" @@ -84,6 +86,7 @@ static __inline__ long local_sub_return( __asm__ __volatile__( " .set push \n" " .set arch=r4000 \n" + __SYNC(full, loongson3_war) " \n" "1:" __LL "%1, %2 # local_sub_return \n" " subu %0, %1, %3 \n" __SC "%0, %2 \n" @@ -99,6 +102,7 @@ static __inline__ long local_sub_return( __asm__ __volatile__( " .set push \n" " .set "MIPS_ISA_ARCH_LEVEL" \n" + __SYNC(full, loongson3_war) " \n" "1:" __LL "%1, %2 # local_sub_return \n" " subu %0, %1, %3 \n" __SC "%0, %2 \n"
