linux-kernel - [PATCH] memstick: r592: Fix build warnings for !PM

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Message-Id: <1412234661-21909-1-git-send-email-thierry.reding@gmail.com>
Date:	Thu,  2 Oct 2014 09:24:21 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Maxim Levitsky <maximlevitsky@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] memstick: r592: Fix build warnings for !PM_SLEEP

From: Thierry Reding <treding@...dia.com>

When PM_SLEEP is not enabled, the r592_clear_interrupts() function is
never used. If so, don't build it to prevent a compiler warning.

Signed-off-by: Thierry Reding <treding@...dia.com>
---
 drivers/memstick/host/r592.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c
index 31727bf285d0..e2a4f5f415b2 100644
--- a/drivers/memstick/host/r592.c
+++ b/drivers/memstick/host/r592.c
@@ -188,6 +188,7 @@ static void r592_host_reset(struct r592_device *dev)
 	r592_set_mode(dev, dev->parallel_mode);
 }
 
+#ifdef CONFIG_PM_SLEEP
 /* Disable all hardware interrupts */
 static void r592_clear_interrupts(struct r592_device *dev)
 {
@@ -195,6 +196,7 @@ static void r592_clear_interrupts(struct r592_device *dev)
 	r592_clear_reg_mask(dev, R592_REG_MSC, IRQ_ALL_ACK_MASK);
 	r592_clear_reg_mask(dev, R592_REG_MSC, IRQ_ALL_EN_MASK);
 }
+#endif
 
 /* Tests if there is an CRC error */
 static int r592_test_io_error(struct r592_device *dev)
-- 
2.1.0

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