[PATCH] ACPI: APEI: Fix ERST timeout unit conversion
Nirmoy Das <[email protected]>
| Newsgroups | gmane.linux.acpi.devel,gmane.linux.kernel,gmane.linux.kernel.stable |
|---|---|
| Message-ID | <[email protected]> |
The ACPI specification defines bits 63:32 returned by
GET_EXECUTE_OPERATION_TIMINGS as the maximum execution time in
microseconds. erst_get_timeout() instead multiplies the value by
NSEC_PER_MSEC.
Use NSEC_PER_USEC to express the firmware-provided microsecond timeout
in the nanosecond units expected by erst_timedout().
Fixes: fac475aab70b ("ACPI: APEI: Use ERST timeout for slow devices")
Cc: [email protected]
Assisted-by: Codex:gpt-5.6-sol
Signed-off-by: Nirmoy Das <[email protected]>
---
drivers/acpi/apei/erst.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index bf65e34615314..15ab797641cfc 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -108,7 +108,7 @@ static inline u64 erst_get_timeout(void)
if (erst_erange.attr & ERST_RANGE_SLOW) {
timeout = ((erst_erange.timings & ERST_EXEC_TIMING_MAX_MASK) >>
- ERST_EXEC_TIMING_MAX_SHIFT) * NSEC_PER_MSEC;
+ ERST_EXEC_TIMING_MAX_SHIFT) * NSEC_PER_USEC;
if (timeout < FIRMWARE_TIMEOUT)
timeout = FIRMWARE_TIMEOUT;
}
--
2.43.0