From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Bernd Petrovitsch <bernd@petrovitsch.priv.at>,
Yisheng Xie <ysxie@foxmail.com>,
b.zolnierkie@samsung.com, keescook@chromium.org,
j.w.r.degoede@gmail.com, david@lechnology.com
Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] fbcon: introduce for_each_registered_fb() helper
Date: Mon, 02 Jul 2018 10:15:09 +0000 [thread overview]
Message-ID: <cc1b6c9efa197d7dcf3ebec69eebdb4c3ca90eef.camel@linux.intel.com> (raw)
In-Reply-To: <00590669b886b4cc54548e6101912c3d4d1752f2.camel@petrovitsch.priv.at>
On Mon, 2018-07-02 at 09:36 +0200, Bernd Petrovitsch wrote:
> > +#define for_each_registered_fb(i) \
> > + for (i = 0; i < FB_MAX; i++) \
> > + if (registered_fb[i])
> > +
>
> That leaves the possibility of a dangling-else.
> ---- snip ----
> #define for_each_registered_fb(i) \
> for (i = 0; i < FB_MAX; i++) \
> if (!registered_fb[i]) \
> continue; \
> else
> ---- snip ----
> avoids that.
Yes, you not alone :-)
AFAIU there is a v2 which fixes that, though Daniel pointed out that DRM
has a specific macro to make life easier.
--
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy
prev parent reply other threads:[~2018-07-02 10:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-28 16:20 [PATCH] fbcon: introduce for_each_registered_fb() helper Yisheng Xie
2018-06-28 18:50 ` Hans de Goede
2018-06-29 16:20 ` Andy Shevchenko
2018-07-02 7:30 ` Daniel Vetter
2018-07-02 10:06 ` Andy Shevchenko
2018-07-02 7:36 ` Bernd Petrovitsch
2018-07-02 10:15 ` Andy Shevchenko [this message]
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