diff options
Diffstat (limited to 'arch/arm64/lib/bitops.S')
| -rw-r--r-- | arch/arm64/lib/bitops.S | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/arm64/lib/bitops.S b/arch/arm64/lib/bitops.S index eaed8bbd78fc..36216d30cb9a 100644 --- a/arch/arm64/lib/bitops.S +++ b/arch/arm64/lib/bitops.S @@ -46,13 +46,11 @@ ENTRY( \name ) mov x2, #1 add x1, x1, x0, lsr #3 // Get word offset lsl x4, x2, x3 // Create mask - smp_dmb ish -1: ldxr x2, [x1] +1: ldaxr x2, [x1] lsr x0, x2, x3 // Save old value of bit \instr x2, x2, x4 // toggle bit - stxr w5, x2, [x1] + stlxr w5, x2, [x1] cbnz w5, 1b - smp_dmb ish and x0, x0, #1 3: ret ENDPROC(\name ) |
