[PATCH] scsi: ibmvfc: Fix use of uninitialized rport in ibmvfc_do_work()

Subsystems: ibm power virtual fc device drivers, linux for powerpc (32-bit and 64-bit), scsi subsystem, the rest

COLD48d LANDED

Landed in mainline as b79b88b655a8 on 2026-08-24.

4 messages, 3 authors, 2026-08-26 · open the first message on its own page

[PATCH] scsi: ibmvfc: Fix use of uninitialized rport in ibmvfc_do_work()

From: Nathan Chancellor <nathan@kernel.org>
Date: 2026-08-17 19:05:05

After commit 696d1cc2aaa2 ("scsi: ibmvfc: process NVMe/FC rports in work
thread"), clang warns (or errors with CONFIG_WERROR=y / W=e):

  drivers/scsi/ibmvscsi/ibmvfc-core.c:6154:15: error: variable 'rport' is uninitialized when used here [-Werror,-Wuninitialized]
   6154 |                         } else if (rport && tgt->action == IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT) {
        |                                    ^~~~~

The check for rport is unnecessary in this block, it was accidentally
included from copying and pasting. Remove it to clear up the warning.

Fixes: 696d1cc2aaa2 ("scsi: ibmvfc: process NVMe/FC rports in work thread")
Suggested-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Link: https://lore.kernel.org/6ccbe8c5-beb6-483f-bfa4-c2d3819ad5f2@linux.ibm.com/
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---
 drivers/scsi/ibmvscsi/ibmvfc-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/ibmvscsi/ibmvfc-core.c b/drivers/scsi/ibmvscsi/ibmvfc-core.c
index 93b9f699c2e5..b3bc3ce872d6 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc-core.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc-core.c
@@ -6151,7 +6151,7 @@ static void ibmvfc_do_work(struct ibmvfc_host *vhost)
 				timer_delete_sync(&tgt->timer);
 				kref_put(&tgt->kref, ibmvfc_release_tgt);
 				return;
-			} else if (rport && tgt->action == IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT) {
+			} else if (tgt->action == IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT) {
 				tgt_dbg(tgt, "Deleting NVMe rport with outstanding I/O\n");
 				nvme_rport = tgt->nvme_remote_port;
 				ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT);
---
base-commit: 30733f28c0347d237ffb5333fdfab7a9a2d4ed34
change-id: 20260817-ibmvscsi-rport-wuninitialized-0bb7e5d05761

Best regards,
--  
Cheers,
Nathan

Re: [PATCH] scsi: ibmvfc: Fix use of uninitialized rport in ibmvfc_do_work()

From: Tyrel Datwyler <tyreld@linux.ibm.com>
Date: 2026-08-21 22:46:37

On 8/17/26 12:04 PM, Nathan Chancellor wrote:
After commit 696d1cc2aaa2 ("scsi: ibmvfc: process NVMe/FC rports in work
thread"), clang warns (or errors with CONFIG_WERROR=y / W=e):

  drivers/scsi/ibmvscsi/ibmvfc-core.c:6154:15: error: variable 'rport' is uninitialized when used here [-Werror,-Wuninitialized]
   6154 |                         } else if (rport && tgt->action == IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT) {
        |                                    ^~~~~

The check for rport is unnecessary in this block, it was accidentally
included from copying and pasting. Remove it to clear up the warning.

Fixes: 696d1cc2aaa2 ("scsi: ibmvfc: process NVMe/FC rports in work thread")
Suggested-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Link: https://lore.kernel.org/6ccbe8c5-beb6-483f-bfa4-c2d3819ad5f2@linux.ibm.com/
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---
Acked-by: Tyrel Datwyler <tyreld@linux.ibm.com>

Re: [PATCH] scsi: ibmvfc: Fix use of uninitialized rport in ibmvfc_do_work()

From: "Martin K. Petersen (Oracle)" <mkp@kernel.org>
Date: 2026-08-24 01:39:52

Nathan,
After commit 696d1cc2aaa2 ("scsi: ibmvfc: process NVMe/FC rports in
work thread"), clang warns (or errors with CONFIG_WERROR=y / W=e):
Applied to 7.3/scsi-staging, thanks!

-- 
Martin K. Petersen

Re: [PATCH] scsi: ibmvfc: Fix use of uninitialized rport in ibmvfc_do_work()

From: "Martin K. Petersen (Oracle)" <mkp@kernel.org>
Date: 2026-08-26 15:20:30

On Mon, 17 Aug 2026 12:04:55 -0700, Nathan Chancellor wrote:
After commit 696d1cc2aaa2 ("scsi: ibmvfc: process NVMe/FC rports in work
thread"), clang warns (or errors with CONFIG_WERROR=y / W=e):

  drivers/scsi/ibmvscsi/ibmvfc-core.c:6154:15: error: variable 'rport' is uninitialized when used here [-Werror,-Wuninitialized]
   6154 |                         } else if (rport && tgt->action == IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT) {
        |                                    ^~~~~

[...]
Applied to 7.3/scsi-queue, thanks!

[1/1] scsi: ibmvfc: Fix use of uninitialized rport in ibmvfc_do_work()
      https://git.kernel.org/mkp/scsi/c/b79b88b655a8

-- 
Martin K. Petersen
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help