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| author |   Ranjan Kumar <ranjan.kumar@broadcom.com> | 2025-06-28 01:15:38 +0530 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2025-07-14 20:53:17 -0400 |
| commit | c91e140c82eb58724c435f623702e51cc7896646 (patch) | |
| tree | 97444ef699fbac5af426e16da39ab4b7a8da92bd /tools/perf/scripts/python | |
| parent | scsi: mpi3mr: Drop unnecessary volatile from __iomem pointers (diff) | |
| download | wireguard-linux-c91e140c82eb58724c435f623702e51cc7896646.tar.xz wireguard-linux-c91e140c82eb58724c435f623702e51cc7896646.zip | |
scsi: mpi3mr: Serialize admin queue BAR writes on 32-bit systems
On 32-bit systems, 64-bit BAR writes to admin queue registers are
performed as two 32-bit writes. Without locking, this can cause partial
writes when accessed concurrently.
Updated per-queue spinlocks is used to serialize these writes and prevent
race conditions.
Fixes: 824a156633df ("scsi: mpi3mr: Base driver code")
Cc: stable@vger.kernel.org
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20250627194539.48851-4-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions