From: Charlie Jenkins <charlie@xxxxxxxxxxxx>
[ Upstream commit 313130c62cf1fc410ac8730b291fd4fde582d032 ]
The unaligned access checker only sets valid values for online cpus.
Check for these values on online cpus rather than on present cpus.
Signed-off-by: Charlie Jenkins <charlie@xxxxxxxxxxxx>
Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
Fixes: 71c54b3d169d ("riscv: report misaligned accesses emulation to hwprobe")
Tested-by: Samuel Holland <samuel.holland@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240308-disable_misaligned_probe_config-v9-2-a388770ba0ce@xxxxxxxxxxxx
Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/riscv/kernel/traps_misaligned.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/riscv/kernel/traps_misaligned.c b/arch/riscv/kernel/traps_misaligned.c
index 8ded225e8c5b1..c2ed4e689bf96 100644
--- a/arch/riscv/kernel/traps_misaligned.c
+++ b/arch/riscv/kernel/traps_misaligned.c
@@ -632,7 +632,7 @@ void unaligned_emulation_finish(void)
* accesses emulated since tasks requesting such control can run on any
* CPU.
*/
- for_each_present_cpu(cpu) {
+ for_each_online_cpu(cpu) {
if (per_cpu(misaligned_access_speed, cpu) !=
RISCV_HWPROBE_MISALIGNED_EMULATED) {
return;
--
2.43.0
