From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1543F20CA8 for ; Thu, 10 Aug 2023 19:59:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 078CBC433C9; Thu, 10 Aug 2023 19:59:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1691697575; bh=HFKdKTvWgmTJ9zRaGAXhGFqBtI9abzBHPJqju93sW88=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=zGZoTZnUcAssR0Tl8d3QKvjObNm8LtePSJif55CNW5b/Y/IUUeax+ZKa1vITgDi5J VHT3MuUZ6V1EBkJ2BiLcStIodSYbbHdzwVsxb5Qq1e2Kj8M3MQyv44FJ0rQmtoZTnF 1y6zTGgAFm1P4N0Z9RJwI6824TVhiIyQnTx0m5Ik= Date: Thu, 10 Aug 2023 21:59:32 +0200 From: Greg Kroah-Hartman To: Linus Torvalds Cc: Daniel =?iso-8859-1?Q?D=EDaz?= , stable@vger.kernel.org, patches@lists.linux.dev, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, linux@roeck-us.net, shuah@kernel.org, patches@kernelci.org, lkft-triage@lists.linaro.org, pavel@denx.de, jonathanh@nvidia.com, f.fainelli@gmail.com, sudipm.mukherjee@gmail.com, srw@sladewatkins.net, rwarsow@gmx.de, conor@kernel.org, lyude@redhat.com Subject: Re: [PATCH 4.19 000/323] 4.19.291-rc1 review Message-ID: <2023081020-graveyard-enjoying-c933@gregkh> References: <20230809103658.104386911@linuxfoundation.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Thu, Aug 10, 2023 at 12:36:41PM -0700, Linus Torvalds wrote: > On Thu, 10 Aug 2023 at 12:28, Daniel Díaz wrote: > > > > Two new warnings are introduced on x86_64 with GCC-8 (defconfig): > > > > -----8<----- > > drivers/gpu/drm/drm_edid.o: warning: objtool: > > drm_mode_std.isra.34()+0xbc: return with modified stack frame > > drivers/gpu/drm/drm_edid.o: warning: objtool: > > drm_mode_std.isra.34()+0x0: stack state mismatch: cfa1=7+112 cfa2=7+8 > > ----->8----- > > > > Bisection points to the quoted commit ("drm/edid: Fix uninitialized > > variable in drm_cvt_modes()"), 991fcb77f490 upstream. Reverting makes > > the warnings disappear. > > Bah. Stable should pick up commit d652d5f1eeeb ("drm/edid: fix objtool > warning in drm_cvt_modes()") from mainline too. > > Sadly it didn't have a 'Fixes:' tag, so it didn't get picked up > automatically. My bad. > > Although it's not like the commits it fixes were actually ever marked > for stable either. I guess commit 3f649ab728cd ("treewide: Remove > uninitialized_var() usage") got picked up as some kind of "make it > easier to apply other patches" thing. I applied the uninitialized_var patch here because I was trying to attempt to reduce the number of build warnings I am getting using gcc-12 on 4.19.y It helped out a tiny bit, but we still have lots of warnings left. I'll pick up d652d5f1eeeb as well now, thanks for pointing it out. greg k-h