From: Arnd Bergmann <arnd@kernel.org>
To: dri-devel@lists.freedesktop.org
Cc: linux-fbdev@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] fbdev: omapfb: avoid -Wempty-body warning
Date: Mon, 22 Mar 2021 11:52:59 +0100 [thread overview]
Message-ID: <20210322105307.1291840-1-arnd@kernel.org> (raw)
From: Arnd Bergmann <arnd@arndb.de>
Building with 'make W=1' shows a few harmless warnings:
drivers/video/fbdev/omap2/omapfb/omapfb-main.c: In function 'omapfb_calc_addr':
drivers/video/fbdev/omap2/omapfb/omapfb-main.c:823:56: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
823 | var->xoffset, var->yoffset, offset);
| ^
drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c: In function 'omapfb_ioctl':
drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c:911:45: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
911 | DBG("ioctl failed: %d\n", r);
Avoid these by using no_printk(), which adds format string checking as
well.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/video/fbdev/omap2/omapfb/omapfb.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb.h b/drivers/video/fbdev/omap2/omapfb/omapfb.h
index d27abccb37bc..1c1b5201c8b6 100644
--- a/drivers/video/fbdev/omap2/omapfb/omapfb.h
+++ b/drivers/video/fbdev/omap2/omapfb/omapfb.h
@@ -29,7 +29,7 @@ extern bool omapfb_debug;
printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__); \
} while (0)
#else
-#define DBG(format, ...)
+#define DBG(format, ...) no_printk(format, ## __VA_ARGS__)
#endif
#define FB2OFB(fb_info) ((struct omapfb_info *)(fb_info->par))
--
2.29.2
next reply other threads:[~2021-03-22 10:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-22 10:52 Arnd Bergmann [this message]
2021-03-22 10:53 ` [PATCH 2/2] vgaarb: avoid -Wempty-body warnings Arnd Bergmann
2021-03-22 13:59 ` Daniel Vetter
2021-03-22 15:05 ` [PATCH 1/2] fbdev: omapfb: avoid -Wempty-body warning Geert Uytterhoeven
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