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authorDavid Howells <dhowells@redhat.com>2014-01-24 03:54:06 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-24 04:36:55 +0400
commita79530e4d8c8ef2bece88f8dab680e541162f010 (patch)
tree9104aee3bcb9996ba671572709648c374030bf4b
parentc6d5f989e14f36d5ff71a9b79a6d3c3bf06c185f (diff)
downloadlinux-a79530e4d8c8ef2bece88f8dab680e541162f010.tar.xz
drivers/video/aty/aty128fb.c: fix a warning pertaining to the aty128fb backlight variable
Fix the following warning in the aty128fb driver: drivers/video/aty/aty128fb.c:363:12: warning: 'backlight' defined but not used [-Wunused-variable] static int backlight = 0; ^ as the variable's value is only read if CONFIG_FB_ATY128_BACKLIGHT=y. The variable is also set if MODULE is unset[*]. [*] I wonder if the conditional wrapper around aty128fb_setup() should be using CONFIG_MODULE rather than MODULE. Signed-off-by: David Howells <dhowells@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/video/aty/aty128fb.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index 12ca031877d4..52108be69e77 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -357,11 +357,13 @@ static int default_lcd_on = 1;
static bool mtrr = true;
#endif
+#ifdef CONFIG_FB_ATY128_BACKLIGHT
#ifdef CONFIG_PMAC_BACKLIGHT
static int backlight = 1;
#else
static int backlight = 0;
#endif
+#endif
/* PLL constants */
struct aty128_constants {
@@ -1671,7 +1673,9 @@ static int aty128fb_setup(char *options)
default_crt_on = simple_strtoul(this_opt+4, NULL, 0);
continue;
} else if (!strncmp(this_opt, "backlight:", 10)) {
+#ifdef CONFIG_FB_ATY128_BACKLIGHT
backlight = simple_strtoul(this_opt+10, NULL, 0);
+#endif
continue;
}
#ifdef CONFIG_MTRR