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scsi: hisi_sas: Remove hisi_hba->timer for v3 hw

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hisi_hba->timer is not used for v3 hw but there are two places that some
operations related to hisi_hba->timer are called by v3 hw:

 - Deleting the timer in function hisi_sas_v3_hw() which is only for v3 hw;

 - Deleting the timer in function hisi_sas_controller_reset_prepare() which
   is common for v1/v2/v3 hw.

We can remove the timer in the first case, but for the second scenario we
need to remove it only for v3 hw, so check hw->sht which is NULL only for
v3 hw before deleting hisi_hba->timer.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/1705904747-62186-5-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Xiang Chen 2024-01-22 14:25:47 +08:00 committed by Martin K. Petersen
parent 69097a631c
commit f9242f1667
2 changed files with 6 additions and 2 deletions
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7
drivers/scsi/hisi_sas/hisi_sas_main.c
View File

@ -1507,7 +1507,12 @@ void hisi_sas_controller_reset_prepare(struct hisi_hba *hisi_hba)
scsi_block_requests(shost);
hisi_hba->hw->wait_cmds_complete_timeout(hisi_hba, 100, 5000);
del_timer_sync(&hisi_hba->timer);
/*
* hisi_hba->timer is only used for v1/v2 hw, and check hw->sht
* which is also only used for v1/v2 hw to skip it for v3 hw
*/
if (hisi_hba->hw->sht)
del_timer_sync(&hisi_hba->timer);
set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);
}

1
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
View File

@ -4935,7 +4935,6 @@ static void hisi_sas_v3_remove(struct pci_dev *pdev)
struct Scsi_Host *shost = sha->shost;
pm_runtime_get_noresume(dev);
del_timer_sync(&hisi_hba->timer);
sas_unregister_ha(sha);
flush_workqueue(hisi_hba->wq);