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From: Arnd Bergmann <arnd@arndb.de>
To: "Martin K. Petersen" <martin.petersen@oracle.com>,
	James.Bottomley@HansenPartnership.com
Cc: linux-arm-kernel@lists.infradead.org,
	Arnd Bergmann <arnd@arndb.de>,
	linux-scsi@vger.kernel.org,
	"James E.J. Bottomley" <JBottomley@odin.com>,
	Russell King <linux@arm.linux.org.uk>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 3/7] scsi: acornscsi: mark calc_sync_xfer as __maybe_unused
Date: Wed, 27 Jan 2016 16:57:19 +0100	[thread overview]
Message-ID: <1453910247-3447628-4-git-send-email-arnd@arndb.de> (raw)
In-Reply-To: <1453910247-3447628-1-git-send-email-arnd@arndb.de>

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(-)

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);
-- 
2.7.0

WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/7] scsi: acornscsi: mark calc_sync_xfer as __maybe_unused
Date: Wed, 27 Jan 2016 16:57:19 +0100	[thread overview]
Message-ID: <1453910247-3447628-4-git-send-email-arnd@arndb.de> (raw)
In-Reply-To: <1453910247-3447628-1-git-send-email-arnd@arndb.de>

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(-)

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);
-- 
2.7.0

  parent reply	other threads:[~2016-01-27 15:59 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-27 15:57 [PATCH 0/7] SCSI bug fixes for 4.6 Arnd Bergmann
2016-01-27 15:57 ` Arnd Bergmann
2016-01-27 15:57 ` [PATCH 1/7] scsi: fdomain: drop fdomain_pci_tbl when built-in Arnd Bergmann
2016-01-27 15:57   ` Arnd Bergmann
2016-01-27 15:57 ` [PATCH 2/7] mptfusion: hide unused seq_mpt_print_ioc_summary function Arnd Bergmann
2016-01-27 15:57   ` Arnd Bergmann
2016-01-27 15:57 ` Arnd Bergmann [this message]
2016-01-27 15:57   ` [PATCH 3/7] scsi: acornscsi: mark calc_sync_xfer as __maybe_unused Arnd Bergmann
2016-01-27 15:57 ` [PATCH 4/7] scsi: fas216: avoid fas216_log_setup for loadable module Arnd Bergmann
2016-01-27 15:57   ` Arnd Bergmann
2016-01-27 15:57 ` [PATCH 5/7] scsi: qla4xxx: shut up warning for rd_reg_indirect Arnd Bergmann
2016-01-27 15:57   ` Arnd Bergmann
2016-02-01  8:17   ` Nilesh Javali
2016-02-01  8:17     ` Nilesh Javali
2016-02-01  8:17     ` Nilesh Javali
2016-01-27 15:57 ` [PATCH 6/7] scsi: aha1542: avoid uninitialized variable warnings Arnd Bergmann
2016-01-27 15:57   ` Arnd Bergmann
2016-01-27 15:57 ` [PATCH 7/7] scsi_dh: force modular build if SCSI is a module Arnd Bergmann
2016-01-27 15:57   ` Arnd Bergmann
2016-02-11  1:24 ` [PATCH 0/7] SCSI bug fixes for 4.6 Martin K. Petersen
2016-02-11  1:24   ` Martin K. Petersen

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