video: cobalt_lcdfb: constify fb_fix_screeninfo structure
authorGustavo A. R. Silva <garsilva@embeddedor.com>
Tue, 1 Aug 2017 15:20:39 +0000 (17:20 +0200)
committerBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Tue, 1 Aug 2017 15:20:39 +0000 (17:20 +0200)
This structure is only used to copy into other structures,
so declare it 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 = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
drivers/video/fbdev/cobalt_lcdfb.c

index 9da90bd..0ef633e 100644 (file)
@@ -126,7 +126,7 @@ static void lcd_clear(struct fb_info *info)
        lcd_write_control(info, LCD_RESET);
 }
 
-static struct fb_fix_screeninfo cobalt_lcdfb_fix = {
+static const struct fb_fix_screeninfo cobalt_lcdfb_fix = {
        .id             = "cobalt-lcd",
        .type           = FB_TYPE_TEXT,
        .type_aux       = FB_AUX_TEXT_MDA,