From: Arnd Bergmann Date: Wed, 27 Jan 2016 15:57:19 +0000 (+0100) Subject: scsi: acornscsi: mark calc_sync_xfer as __maybe_unused X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6fea7f6fbc1df232d9ff3d35080fb3e19eef4ef2;p=linux-beck.git scsi: acornscsi: mark calc_sync_xfer as __maybe_unused 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 Signed-off-by: Martin K. Petersen --- 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);