clang -Wuninitialized incorrectly sees a variable being used without
initialization:
drivers/scsi/lpfc/lpfc_nvme.c:2102:37: error: variable 'localport' is uninitialized when used here
[-Werror,-Wuninitialized]
lport = (struct lpfc_nvme_lport *)localport->private;
^~~~~~~~~
drivers/scsi/lpfc/lpfc_nvme.c:2059:38: note: initialize the variable 'localport' to silence this warning
struct nvme_fc_local_port *localport;
^
= NULL
1 error generated.
This is clearly in dead code, as the condition leading up to it is
always false when CONFIG_NVME_FC is disabled, and the variable
is always initialized when nvme_fc_register_localport() got
called successfully.
Change the preprocessor conditional to the equivalent C construct,
which makes the code more readable and gets rid of the warning.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/scsi/lpfc/lpfc_nvme.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c
index 1aa00d2c3f74..9defff711884 100644
--- a/drivers/scsi/lpfc/lpfc_nvme.c
+++ b/drivers/scsi/lpfc/lpfc_nvme.c
@@ -2080,15 +2080,15 @@ lpfc_nvme_create_localport(struct lpfc_vport *vport)
lpfc_nvme_template.max_hw_queues =
phba->sli4_hba.num_present_cpu;
+ if (!IS_ENABLED(CONFIG_NVME_FC))
+ return ret;
+
/* localport is allocated from the stack, but the registration
* call allocates heap memory as well as the private area.
*/
-#if (IS_ENABLED(CONFIG_NVME_FC))
+
ret = nvme_fc_register_localport(&nfcp_info, &lpfc_nvme_template,
&vport->phba->pcidev->dev, &localport);
-#else
- ret = -ENOMEM;
-#endif
if (!ret) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME | LOG_NVME_DISC,
"6005 Successfully registered local "
--
2.20.0
