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Message-ID: <389db3ff-16e4-430f-a69d-dd41d83d83aa@cybernetics.com>
Date: Mon, 8 Sep 2025 14:51:28 -0400
From: Tony Battersby <tonyb@...ernetics.com>
To: Nilesh Javali <njavali@...vell.com>,
GR-QLogic-Storage-Upstream@...vell.com,
"James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
"Martin K. Petersen" <martin.petersen@...cle.com>
Cc: linux-scsi <linux-scsi@...r.kernel.org>, target-devel@...r.kernel.org,
scst-devel@...ts.sourceforge.net,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH 04/15] scsi: qla2xxx: use reinit_completion on mbx_intr_comp
If a mailbox command completes immediately after
wait_for_completion_timeout() times out, ha->mbx_intr_comp could be left
in an inconsistent state, causing the next mailbox command not to wait
for the hardware. Fix by reinitializing the completion before use.
Signed-off-by: Tony Battersby <tonyb@...ernetics.com>
---
drivers/scsi/qla2xxx/qla_mbx.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 32eb0ce8b170..1f01576f044b 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -253,6 +253,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
/* Issue set host interrupt command to send cmd out. */
ha->flags.mbox_int = 0;
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
+ reinit_completion(&ha->mbx_intr_comp);
/* Unlock mbx registers and wait for interrupt */
ql_dbg(ql_dbg_mbx, vha, 0x100f,
@@ -279,6 +280,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
"cmd=%x Timeout.\n", command);
spin_lock_irqsave(&ha->hardware_lock, flags);
clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
+ reinit_completion(&ha->mbx_intr_comp);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (chip_reset != ha->chip_reset) {
--
2.43.0
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