diff mbox series

[3/7] scsi: acornscsi: mark calc_sync_xfer as __maybe_unused

Message ID 1453910247-3447628-4-git-send-email-arnd@arndb.de
State Accepted
Commit 6fea7f6fbc1df232d9ff3d35080fb3e19eef4ef2
Headers show
Series [1/7] scsi: fdomain: drop fdomain_pci_tbl when built-in | expand

Commit Message

Arnd Bergmann Jan. 27, 2016, 3:57 p.m. UTC 
The calc_sync_xfer function is only used if CONFIG_SCSI_ACORNSCSI_SYNC
is set, otherwise we get a compiler warning:

scsi/arm/acornscsi.c:680:15: warning: 'calc_sync_xfer' defined but not used [-Wunused-function]
 unsigned char calc_sync_xfer(unsigned int period, unsigned int offset)

This marks the function as __maybe_unused to shut up the
warning and silently drop the function in the object code
when there is no caller.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

---
 drivers/scsi/arm/acornscsi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

-- 
2.7.0
diff mbox series

Patch

diff --git a/drivers/scsi/arm/acornscsi.c b/drivers/scsi/arm/acornscsi.c
index deaaf84989cd..12b88294d667 100644
--- a/drivers/scsi/arm/acornscsi.c
+++ b/drivers/scsi/arm/acornscsi.c
@@ -677,7 +677,8 @@  int round_period(unsigned int period)
  * Copyright: Copyright (c) 1996 John Shifflett, GeoLog Consulting
  */
 static
-unsigned char calc_sync_xfer(unsigned int period, unsigned int offset)
+unsigned char __maybe_unused calc_sync_xfer(unsigned int period,
+					    unsigned int offset)
 {
     return sync_xfer_table[round_period(period)].reg_value |
 		((offset < SDTR_SIZE) ? offset : SDTR_SIZE);