From: "Gustavo A. R. Silva" <garsilva@embeddedor.com>
To: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org,
"Gustavo A. R. Silva" <garsilva@embeddedor.com>
Subject: [PATCH] video/mbx: constify fb_fix_screeninfo and fb_var_screeninfo structures
Date: Sat, 08 Jul 2017 01:09:56 +0000 [thread overview]
Message-ID: <20170708010956.GA22914@embeddedgus> (raw)
These structures are only used to copy into other structures,
so declare them as const.
This issue was detected using Coccinelle and the following semantic patch:
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct fb_fix_screeninfo i@p = { ... };
@ok@
identifier r.i;
expression e;
position p;
@@
e = i@p
@bad@
position p != {r.p,ok.p};
identifier r.i;
struct fb_fix_screeninfo e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct fb_fix_screeninfo i = { ... };
The semantic patch for fb_var_screeninfo is analogous.
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
---
drivers/video/fbdev/mbx/mbxfb.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/video/fbdev/mbx/mbxfb.c b/drivers/video/fbdev/mbx/mbxfb.c
index 698df954..539b85d 100644
--- a/drivers/video/fbdev/mbx/mbxfb.c
+++ b/drivers/video/fbdev/mbx/mbxfb.c
@@ -79,7 +79,7 @@ struct mbxfb_info {
};
-static struct fb_var_screeninfo mbxfb_default = {
+static const struct fb_var_screeninfo mbxfb_default = {
.xres = 640,
.yres = 480,
.xres_virtual = 640,
@@ -102,7 +102,7 @@ static struct fb_var_screeninfo mbxfb_default = {
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
};
-static struct fb_fix_screeninfo mbxfb_fix = {
+static const struct fb_fix_screeninfo mbxfb_fix = {
.id = "MBX",
.type = FB_TYPE_PACKED_PIXELS,
.visual = FB_VISUAL_TRUECOLOR,
--
2.5.0
next reply other threads:[~2017-07-08 1:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20170708010959epcas5p2f2a199a1dc503c643d964aee252cd38f@epcas5p2.samsung.com>
2017-07-08 1:09 ` Gustavo A. R. Silva [this message]
2017-08-01 12:27 ` [PATCH] video/mbx: constify fb_fix_screeninfo and fb_var_screeninfo structures Bartlomiej Zolnierkiewicz
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