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authorJames Smart <jsmart2021@gmail.com>2018-04-09 23:24:26 +0200
committerMartin K. Petersen <martin.petersen@oracle.com>2018-04-19 01:34:03 +0200
commit0cdb84ec26e455326a8ee1b7c69ce1c281ba38cb (patch)
treeb6f8b80f830a3ce66053fc8e8809744ad2416522 /drivers/scsi/lpfc
parentscsi: lpfc: Fix Abort request WQ selection (diff)
downloadlinux-0cdb84ec26e455326a8ee1b7c69ce1c281ba38cb.tar.xz
linux-0cdb84ec26e455326a8ee1b7c69ce1c281ba38cb.zip
scsi: lpfc: Fix lingering lpfc_wq resource after driver unload
After driver unloads, lpfc_wq remains active. The destroy_workqueue calls were not being made in driver unload. Additionally, SLI3 is allocating lpfc_wq resources, but never uses it. Make the destroy_workqueue calls on driver unload. Modify the SLI3 code path no longer allocate lpfc_wq resources. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc')
-rw-r--r--drivers/scsi/lpfc/lpfc_init.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 4add398ec9cf..8dac676a46db 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -6420,8 +6420,11 @@ lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
return error;
}
- /* workqueue for deferred irq use */
- phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
+ /* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
+ else
+ phba->wq = NULL;
return 0;
}
@@ -6444,7 +6447,8 @@ lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
}
/* Stop kernel worker thread */
- kthread_stop(phba->worker_thread);
+ if (phba->worker_thread)
+ kthread_stop(phba->worker_thread);
}
/**
@@ -11727,6 +11731,7 @@ lpfc_pci_remove_one_s4(struct pci_dev *pdev)
lpfc_nvme_free(phba);
lpfc_free_iocb_list(phba);
+ lpfc_unset_driver_resource_phase2(phba);
lpfc_sli4_driver_resource_unset(phba);
/* Unmap adapter Control and Doorbell registers */