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| author | Gleb Chesnokov <[email protected]> | 2022-04-15 12:42:29 +0000 |
|---|---|---|
| committer | Martin K. Petersen <[email protected]> | 2022-05-03 00:36:15 +0000 |
| commit | 26f9ce53817a8fd84b69a73473a7de852a24c897 (patch) | |
| tree | 11c15d649de1049c87243d22df48179e53df584d /tools/perf/scripts/python/mem-phys-addr.py | |
| parent | scsi: scsi_dh_alua: Properly handle the ALUA transitioning state (diff) | |
| download | kernel-26f9ce53817a8fd84b69a73473a7de852a24c897.tar.gz kernel-26f9ce53817a8fd84b69a73473a7de852a24c897.zip | |
scsi: qla2xxx: Fix missed DMA unmap for aborted commands
Aborting commands that have already been sent to the firmware can
cause BUG in qlt_free_cmd(): BUG_ON(cmd->sg_mapped)
For instance:
- Command passes rdx_to_xfer state, maps sgl, sends to the firmware
- Reset occurs, qla2xxx performs ISP error recovery, aborts the command
- Target stack calls qlt_abort_cmd() and then qlt_free_cmd()
- BUG_ON(cmd->sg_mapped) in qlt_free_cmd() occurs because sgl was not
unmapped
Thus, unmap sgl in qlt_abort_cmd() for commands with the aborted flag set.
Link: https://lore.kernel.org/r/AS8PR10MB4952D545F84B6B1DFD39EC1E9DEE9@AS8PR10MB4952.EURPRD10.PROD.OUTLOOK.COM
Reviewed-by: Himanshu Madhani <[email protected]>
Signed-off-by: Gleb Chesnokov <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/mem-phys-addr.py')
0 files changed, 0 insertions, 0 deletions