From: Daniel Vetter <daniel@ffwll.ch>
To: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Tim Gardner <tim.gardner@canonical.com>,
linux-kernel@vger.kernel.org,
Daniel Vetter <daniel.vetter@ffwll.ch>,
David Airlie <airlied@linux.ie>,
dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v2 linux-next] i915: intel_set_mode: Reduce stack allocation from 500 bytes to 2 pointers
Date: Mon, 10 Dec 2012 10:14:07 +0100 [thread overview]
Message-ID: <20121210091407.GI11556@phenom.ffwll.local> (raw)
In-Reply-To: <87obi2mkky.fsf@intel.com>
On Mon, Dec 10, 2012 at 09:29:17AM +0200, Jani Nikula wrote:
> On Fri, 07 Dec 2012, Tim Gardner <tim.gardner@canonical.com> wrote:
> > smatch warning:
> >
> > drivers/gpu/drm/i915/intel_display.c:7019 intel_set_mode() warn: function puts
> > 500 bytes on stack
> >
> > Refactor so that saved_mode and saved_hwmode are dynamically allocated as opposed
> > to being automatic variables. 500 bytes seems like it could run the potential for blowing
> > the kernel stack.
>
> Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Queued for -next, thanks for the patch.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
prev parent reply other threads:[~2012-12-10 9:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-06 17:42 [PATCH linux-next] i915: intel_set_mode: Reduce stack allocation from 500 bytes to 2 pointers Tim Gardner
2012-12-07 11:47 ` Jani Nikula
2012-12-07 11:49 ` Chris Wilson
2012-12-07 12:05 ` Jani Nikula
2012-12-07 14:54 ` [PATCH v2 " Tim Gardner
2012-12-10 7:29 ` Jani Nikula
2012-12-10 9:14 ` Daniel Vetter [this message]
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