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| author | Ranjan Kumar <ranjan.kumar@broadcom.com> | 2025-06-27 22:45:38 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-07-15 03:53:17 +0300 |
| commit | c91e140c82eb58724c435f623702e51cc7896646 (patch) | |
| tree | 97444ef699fbac5af426e16da39ab4b7a8da92bd /rust/helpers/refcount.c | |
| parent | 6853885b21cb1d7157cc14c9d30cc17141565bae (diff) | |
| download | linux-c91e140c82eb58724c435f623702e51cc7896646.tar.xz | |
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 'rust/helpers/refcount.c')
0 files changed, 0 insertions, 0 deletions