linux-kernel - [PATCH v2 7/8] video: mark nuc900fb_map_video_memory as _

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Message-Id: <1349813638-4617-8-git-send-email-arnd@arndb.de>
Date:	Tue,  9 Oct 2012 22:13:57 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	arm@...nel.org
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>,
	Wan ZongShun <mcuos.com@...il.com>,
	Florian Tobias Schandinat <FlorianSchandinat@....de>,
	linux-fbdev@...r.kernel.org
Subject: [PATCH v2 7/8] video: mark nuc900fb_map_video_memory as __devinit

nuc900fb_map_video_memory is called by an devinit function
that may be called at run-time, but the function itself is
marked __init and will be discarded after boot.

To avoid calling into a function that may have been overwritten,
mark nuc900fb_map_video_memory itself as __devinit.

Without this patch, building nuc950_defconfig results in:

WARNING: drivers/video/built-in.o(.devinit.text+0x26c): Section mismatch in reference from the function nuc900fb_probe() to the function .init.text:nuc900fb_map_video_memory()
The function __devinit nuc900fb_probe() references
a function __init nuc900fb_map_video_memory().
If nuc900fb_map_video_memory is only used by nuc900fb_probe then
annotate nuc900fb_map_video_memory with a matching annotation.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Cc: Wan ZongShun <mcuos.com@...il.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@....de>
Cc: linux-fbdev@...r.kernel.org
---
 drivers/video/nuc900fb.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/nuc900fb.c b/drivers/video/nuc900fb.c
index e10f551..b31b12b 100644
--- a/drivers/video/nuc900fb.c
+++ b/drivers/video/nuc900fb.c
@@ -387,7 +387,7 @@ static int nuc900fb_init_registers(struct fb_info *info)
  *    The buffer should be a non-cached, non-buffered, memory region
  *    to allow palette and pixel writes without flushing the cache.
  */
-static int __init nuc900fb_map_video_memory(struct fb_info *info)
+static int __devinit nuc900fb_map_video_memory(struct fb_info *info)
 {
 	struct nuc900fb_info *fbi = info->par;
 	dma_addr_t map_dma;
-- 
1.7.10

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