scsi: fnic: fix format string overflow warning

The MSI interrupt name can require 11 bytes in addition to the device name,
for a total of 23 bytes:

drivers/scsi/fnic/fnic_isr.c: In function 'fnic_request_intr':
drivers/scsi/fnic/fnic_isr.c:192:4: error: '-fcs-rq' directive writing 7 bytes into a region of size between 5 and 16 [-Werror=format-overflow=]
    "%.11s-fcs-rq", fnic->name);
drivers/scsi/fnic/fnic_isr.c:206:3: note: 'sprintf' output between 12 and 23 bytes into a destination of size 16
   sprintf(fnic->msix[FNIC_MSIX_ERR_NOTIFY].devname,
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    "%.11s-err-notify", fnic->name);

This extends the buffer to fit any possible value.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 514e59c1195f2634dab025d952242f5e69e052c7)

Orabug: 27587343
Signed-off-by: Jack Vogel <jack.vogel@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/fnic/fnic.h b/drivers/scsi/fnic/fnic.h
index a0b9f9d525de6dd0488688f34494479e5c3b75b0..87c51a5954c695c96389b0384c82eb2b56857a0d 100644 (file)
--- a/drivers/scsi/fnic/fnic.h
+++ b/drivers/scsi/fnic/fnic.h
@@ -180,7 +180,7 @@ enum fnic_msix_intr_index {
 
 struct fnic_msix_entry {
        int requested;
-       char devname[IFNAMSIZ];
+       char devname[IFNAMSIZ + 11];
        irqreturn_t (*isr)(int, void *);
        void *devid;
 };