[PATCH v2] lpfc: Fix missing wakeups on abort threads

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Abort thread wakeup, on some wqe types, are not happening.
The thread wakeup logic is dependent upon the LPFC_DRIVER_ABORTED
flag. However, on these wqes, the completion handler running
prior to the io completion routine ends up clearing the flag.

Rework the wakeup logic to look at a non-null waitq element
which must be set if the abort thread is waiting. This is reverting
the change in the indicated patch.

Fixes: c2017260eea2d ("scsi: lpfc: Rework locking on SCSI io completion")
Signed-off-by: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>
Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>
---
 drivers/scsi/lpfc/lpfc_scsi.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 2cfb052d35d8..74feb63d77dc 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -3878,10 +3878,9 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 	 * wake up the thread.
 	 */
 	spin_lock(&lpfc_cmd->buf_lock);
-	if (unlikely(lpfc_cmd->cur_iocbq.iocb_flag & LPFC_DRIVER_ABORTED)) {
-		lpfc_cmd->cur_iocbq.iocb_flag &= ~LPFC_DRIVER_ABORTED;
-		if (lpfc_cmd->waitq)
-			wake_up(lpfc_cmd->waitq);
+	lpfc_cmd->cur_iocbq.iocb_flag &= ~LPFC_DRIVER_ABORTED;
+	if (lpfc_cmd->waitq) {
+		wake_up(lpfc_cmd->waitq);
 		lpfc_cmd->waitq = NULL;
 	}
 	spin_unlock(&lpfc_cmd->buf_lock);
-- 
2.13.7




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