'amount_xferred' is used, but only in certain circumstances. Place
the same stipulations on the defining/allocating of 'amount_xferred'
as is placed when using it.
We've been careful not to change any of the ordering semantics here.
Fixes the following W=1 kernel build warning(s):
drivers/scsi/aic7xxx/aic7xxx_osm.c: In function ‘ahc_done’:
drivers/scsi/aic7xxx/aic7xxx_osm.c:1725:12: warning: variable ‘amount_xferred’ set but not used [-Wunused-but-set-variable]
1725 | uint32_t amount_xferred;
| ^~~~~~~~~~~~~~
Cc: Hannes Reinecke <hare@xxxxxxxx>
Cc: "Daniel M. Eischen" <deischen@xxxxxxxxxxxxxxxxxxxxx>
Cc: Doug Ledford <dledford@xxxxxxxxxx>
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
---
drivers/scsi/aic7xxx/aic7xxx_osm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index ed437c16de881..e7ccb8b80fc19 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -1711,10 +1711,12 @@ ahc_done(struct ahc_softc *ahc, struct scb *scb)
*/
cmd->sense_buffer[0] = 0;
if (ahc_get_transaction_status(scb) == CAM_REQ_INPROG) {
+#ifdef AHC_REPORT_UNDERFLOWS
uint32_t amount_xferred;
amount_xferred =
ahc_get_transfer_length(scb) - ahc_get_residual(scb);
+#endif
if ((scb->flags & SCB_TRANSMISSION_ERROR) != 0) {
#ifdef AHC_DEBUG
if ((ahc_debug & AHC_SHOW_MISC) != 0) {
--
2.25.1
