Thread (4 messages) 4 messages, 3 authors, 2008-07-31

Re: [PATCH] atyfb_base.c: fix warning

From: Andrew Morton <akpm@linux-foundation.org>
Date: 2008-07-31 09:16:59
Also in: kernel-janitors, lkml

On Thu, 31 Jul 2008 01:03:52 +0400 Alexander Beregalov [off-list ref] wrote:
quoted hunk ↗ jump to hunk
From: Alexander Beregalov <redacted>

atyfb_base.c: fix warning

drivers/video/aty/atyfb_base.c:2663: warning: 'aty_resume_chip' defined
but not used

Signed-off-by: Alexander Beregalov <redacted>
Cc: Ville Syrjala <syrjala@sci.fi>
Cc: Antonino A. Daplas <redacted>
---

 drivers/video/aty/atyfb_base.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 620ba81..9e5dfb1 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -244,7 +244,9 @@ static int atyfb_sync(struct fb_info *info);
      */
 
 static int aty_init(struct fb_info *info);
+#if defined(CONFIG_PM) && defined(CONFIG_PCI)
 static void aty_resume_chip(struct fb_info *info);
+#endif
 #ifdef CONFIG_ATARI
 static int store_video_par(char *videopar, unsigned char m64_num);
 #endif
@@ -2659,6 +2661,7 @@ aty_init_exit:
 	return ret;
 }
 
+#if defined(CONFIG_PM) && defined(CONFIG_PCI)
 static void aty_resume_chip(struct fb_info *info)
 {
 	struct atyfb_par *par = info->par;
@@ -2671,6 +2674,7 @@ static void aty_resume_chip(struct fb_info *info)
 	if (par->aux_start)
 		aty_st_le32(BUS_CNTL, aty_ld_le32(BUS_CNTL, par) | BUS_APER_REG_DIS, par);
 }
+#endif /* defined(CONFIG_PM) && defined(CONFIG_PCI) */
 
 #ifdef CONFIG_ATARI
 static int __devinit store_video_par(char *video_str, unsigned char m64_num)
OK...

We don't strictly need the first ifdef - it's OK to declare a
non-existent function, and ifdefs are ugly.

But we can reorganise the code a bit more and remove the forward
declaration altogether and remove a whole ifdef block too.

How does this look?

 drivers/video/aty/atyfb_base.c |   29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff -puN drivers/video/aty/atyfb_base.c~atyfb_basec-fix-warning drivers/video/aty/atyfb_base.c
--- a/drivers/video/aty/atyfb_base.c~atyfb_basec-fix-warning
+++ a/drivers/video/aty/atyfb_base.c
@@ -244,7 +244,7 @@ static int atyfb_sync(struct fb_info *in
      */
 
 static int aty_init(struct fb_info *info);
-static void aty_resume_chip(struct fb_info *info);
+
 #ifdef CONFIG_ATARI
 static int store_video_par(char *videopar, unsigned char m64_num);
 #endif
@@ -2023,6 +2023,20 @@ static int atyfb_pci_suspend(struct pci_
 	return 0;
 }
 
+static void aty_resume_chip(struct fb_info *info)
+{
+	struct atyfb_par *par = info->par;
+
+	aty_st_le32(MEM_CNTL, par->mem_cntl, par);
+
+	if (par->pll_ops->resume_pll)
+		par->pll_ops->resume_pll(info, &par->pll);
+
+	if (par->aux_start)
+		aty_st_le32(BUS_CNTL,
+			aty_ld_le32(BUS_CNTL, par) | BUS_APER_REG_DIS, par);
+}
+
 static int atyfb_pci_resume(struct pci_dev *pdev)
 {
 	struct fb_info *info = pci_get_drvdata(pdev);
@@ -2659,19 +2673,6 @@ aty_init_exit:
 	return ret;
 }
 
-static void aty_resume_chip(struct fb_info *info)
-{
-	struct atyfb_par *par = info->par;
-
-	aty_st_le32(MEM_CNTL, par->mem_cntl, par);
-
-	if (par->pll_ops->resume_pll)
-		par->pll_ops->resume_pll(info, &par->pll);
-
-	if (par->aux_start)
-		aty_st_le32(BUS_CNTL, aty_ld_le32(BUS_CNTL, par) | BUS_APER_REG_DIS, par);
-}
-
 #ifdef CONFIG_ATARI
 static int __devinit store_video_par(char *video_str, unsigned char m64_num)
 {
_


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