scsi: mac53c94: Fix a set-but-not-used compiler warning

Fix the following compiler warning:

   drivers/scsi/mac53c94.c: In function 'mac53c94_init':
   drivers/scsi/mac53c94.c:128:13: warning: variable 'x' set but not used [-Wunused-but-set-variable]
     128 |         int x;

Link: https://lore.kernel.org/r/20220218195117.25689-31-bvanassche@acm.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c
index 3976a18..afa0830 100644 (file)
--- a/drivers/scsi/mac53c94.c
+++ b/drivers/scsi/mac53c94.c
@@ -125,7 +125,6 @@ static void mac53c94_init(struct fsc_state *state)
 {
        struct mac53c94_regs __iomem *regs = state->regs;
        struct dbdma_regs __iomem *dma = state->dma;
-       int x;
 
        writeb(state->host->this_id | CF1_PAR_ENABLE, &regs->config1);
        writeb(TIMO_VAL(250), &regs->sel_timeout);      /* 250ms */
@@ -134,7 +133,7 @@ static void mac53c94_init(struct fsc_state *state)
        writeb(0, &regs->config3);
        writeb(0, &regs->sync_period);
        writeb(0, &regs->sync_offset);
-       x = readb(&regs->interrupt);
+       (void)readb(&regs->interrupt);
        writel((RUN|PAUSE|FLUSH|WAKE) << 16, &dma->control);
 }