From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <52B340CB.90807@wwwdotorg.org> Date: Thu, 19 Dec 2013 11:54:03 -0700 From: Stephen Warren MIME-Version: 1.0 To: David Herrmann , linux-kernel@vger.kernel.org CC: Takashi Iwai , the arch/x86 maintainers , linux-fbdev@vger.kernel.org, Geert Uytterhoeven , Ingo Molnar , stable@vger.kernel.org Subject: Re: [PATCH v3] x86: sysfb: remove sysfb when probing real hw References: <1387374611-12493-1-git-send-email-dh.herrmann@gmail.com> <1387448038-8260-1-git-send-email-dh.herrmann@gmail.com> In-Reply-To: <1387448038-8260-1-git-send-email-dh.herrmann@gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: On 12/19/2013 03:13 AM, David Herrmann wrote: > With CONFIG_X86_SYSFB=y, probing real hw-drivers may result in > resource-conflicts and drivers will refuse to load. A call to > request_mem_region() will fail, if the region overlaps with the mem-region > used by simplefb. The common desktop DRM drivers (intel, nouveau, radeon) > are not affected as they don't reserve their resources, but some others > do, including (nvidiafb, cirrus, ..). I have validated that this doesn't cause any regressions on the/a non-x86 platform using simplefb, although given the main point of this patch is to fix issues on x86, I'm rather hesitant to give a tested-by tag in case someone looking back interprets it incorrectly:-)