scsi: lpfc: Ensure variable has the same stipulations as code using it

'pg_addr' is only used when CONFIG_X86 is defined.  So only declare it if
CONFIG_X86 is defined.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_sli.c: In function ‘lpfc_wq_create’:
 drivers/scsi/lpfc/lpfc_sli.c:15813:16: warning: unused variable ‘pg_addr’ [-Wunused-variable]
 15813 | unsigned long pg_addr;
 | ^~~~~~~

Link: https://lore.kernel.org/r/20200721164148.2617584-37-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index c44eed709d5fc309b62e27470cde5064e88fd31a..278ea0d74b4a8718147dc4ce780f361d3d5c8f29 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -15810,8 +15810,10 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
        uint16_t pci_barset;
        uint8_t dpp_barset;
        uint32_t dpp_offset;
-       unsigned long pg_addr;
        uint8_t wq_create_version;
+#ifdef CONFIG_X86
+       unsigned long pg_addr;
+#endif
 
        /* sanity check on queue memory */
        if (!wq || !cq)