From: Daniel Vetter <daniel@ffwll.ch>
To: Arnd Bergmann <arnd@kernel.org>
Cc: dri-devel@lists.freedesktop.org,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
linux-fbdev@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
Yue Zou <zouyue3@huawei.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] vgaarb: avoid -Wempty-body warnings
Date: Mon, 22 Mar 2021 14:59:24 +0100 [thread overview]
Message-ID: <YFiivD6B5SZLZl7Z@phenom.ffwll.local> (raw)
In-Reply-To: <20210322105307.1291840-2-arnd@kernel.org>
On Mon, Mar 22, 2021 at 11:53:00AM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> Building with W=1 shows a few warnings for an empty macro:
>
> drivers/gpu/drm/qxl/qxl_drv.c: In function 'qxl_pci_probe':
> drivers/gpu/drm/qxl/qxl_drv.c:131:50: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
> 131 | vga_put(pdev, VGA_RSRC_LEGACY_IO);
> | ^
> drivers/gpu/drm/qxl/qxl_drv.c: In function 'qxl_pci_remove':
> drivers/gpu/drm/qxl/qxl_drv.c:159:50: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
> 159 | vga_put(pdev, VGA_RSRC_LEGACY_IO);
>
> Change this to an inline function to make it more robust and avoid
> the warning.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Both applied to drm-misc-next for 5.13, thanks for your patches.
-Daniel
> ---
> include/linux/vgaarb.h | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/include/linux/vgaarb.h b/include/linux/vgaarb.h
> index fc6dfeba04a5..dc6ddce92066 100644
> --- a/include/linux/vgaarb.h
> +++ b/include/linux/vgaarb.h
> @@ -112,7 +112,9 @@ static inline int vga_get_uninterruptible(struct pci_dev *pdev,
> #if defined(CONFIG_VGA_ARB)
> extern void vga_put(struct pci_dev *pdev, unsigned int rsrc);
> #else
> -#define vga_put(pdev, rsrc)
> +static inline void vga_put(struct pci_dev *pdev, unsigned int rsrc)
> +{
> +}
> #endif
>
>
> --
> 2.29.2
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
next prev parent reply other threads:[~2021-03-22 14:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-22 10:52 [PATCH 1/2] fbdev: omapfb: avoid -Wempty-body warning Arnd Bergmann
2021-03-22 10:53 ` [PATCH 2/2] vgaarb: avoid -Wempty-body warnings Arnd Bergmann
2021-03-22 13:59 ` Daniel Vetter [this message]
2021-03-22 15:05 ` [PATCH 1/2] fbdev: omapfb: avoid -Wempty-body warning Geert Uytterhoeven
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YFiivD6B5SZLZl7Z@phenom.ffwll.local \
--to=daniel@ffwll.ch \
--cc=airlied@linux.ie \
--cc=arnd@arndb.de \
--cc=arnd@kernel.org \
--cc=dri-devel@lists.freedesktop.org \
--cc=linux-fbdev@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=maarten.lankhorst@linux.intel.com \
--cc=mripard@kernel.org \
--cc=tzimmermann@suse.de \
--cc=zouyue3@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).