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

Nathan Chancellor posted 1 patch 1 month, 1 week ago
drivers/scsi/ibmvscsi/ibmvfc-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
[PATCH] scsi: ibmvfc: Fix use of uninitialized rport in ibmvfc_do_work()
Posted by Nathan Chancellor 1 month, 1 week ago
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()
Posted by Martin K. Petersen (Oracle) 1 month ago
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
Re: [PATCH] scsi: ibmvfc: Fix use of uninitialized rport in ibmvfc_do_work()
Posted by Martin K. Petersen (Oracle) 1 month ago
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()
Posted by Tyrel Datwyler 1 month, 1 week ago
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>