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 C142333BBCF; Fri, 6 Mar 2026 02:57:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772765874; cv=none; b=LHtvuYPHbcPluvYtiqDI97dpA6YkVFfHK+gmGj+UUpoUoiCKN16KugdQsMKe3rxO6mgKwkikxEsWtmXbtzLBL/99aclRyFnb4vGmipwdyg4wfbvx1uaN5qbdSPS9nm+c3HlMrUXdvyy9Yv2Z1d02A3+PaBFkluCzNb2WdbnrJhU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772765874; c=relaxed/simple; bh=zK/+Pf0Sp4lJ7R9ekZERM/kLqH3SuxmogR85OYbHtgk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=OHKJlgugxxilT3uL9fUbQiXqgQWpreOkTBBTVpvwOPY7V8ujJ+6KZF9b9AioalMkHFNzdOc5dUi/RogbN0Q5gOVb72Pir5s7ReD46YeVB3pXR178WKE+SMvKaEkhc5QUyrAKzIvQfZAyrU30/lbVzvroMf5/6X9lBhd6U8PLmh0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=luimFDE8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="luimFDE8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1E5EDC116C6; Fri, 6 Mar 2026 02:57:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772765874; bh=zK/+Pf0Sp4lJ7R9ekZERM/kLqH3SuxmogR85OYbHtgk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=luimFDE89CBNICA667bcDXnJEPxUJdXtGIABmslcTeS2xWRy/kedHklaBXCnAipge WAAJ2axP+Nqc5sPMndL/YVB+Y87f2H2yTby6Q80OR8HSevGVbi5Ii2vovHY+zc5oWR jmvkmPZ0nA8sFzTDbpyu7FvXduQZ6vjo9T9pnIHH/gEWLqf4sVstJBSt821cY0kOR8 A8wn1lJz9aSiM3MdAF8BWnG73IX3SWQLYAL9QdyoR2DibIS4T3fvOOCmIUcbtOLPoC 0lHR4ixVCWPJuJjLGdMzUc7PIB+wL3FHJguFdNRfUhfZrTP6CAQvHOKiQKkOctX2Ss 9XaaMfVTThjxw== Date: Thu, 5 Mar 2026 21:57:52 -0500 From: Sasha Levin To: Peter Schneider Cc: Brett A C Sheffield , Greg Kroah-Hartman , Aditya Garg , "zohar@linux.ibm.com" , "akpm@linux-foundation.org" , Harshit Mogalapalli , "ardb@kernel.org" , "bp@alien8.de" , "dave.hansen@linux.intel.com" , "graf@amazon.com" , "guoweikang.kernel@gmail.com" , "henry.willard@oracle.com" , "hpa@zytor.com" , "jbohac@suse.cz" , "joel.granados@kernel.org" , "linux-kernel@vger.kernel.org" , "mingo@redhat.com" , "noodles@fb.com" , "paul.x.webb@oracle.com" , "rppt@kernel.org" , "sohil.mehta@intel.com" , "sourabhjain@linux.ibm.com" , "stable@vger.kernel.org" , "tglx@linutronix.de" , "x86@kernel.org" , "yifei.l.liu@oracle.com" Subject: Re: [REGRESSION] Linux kernel 6.12.75 fails to compile with -Werror=implicit-function-declaration Message-ID: References: <0be301c0-f9be-4d70-9fdb-7a260ccf83ac@googlemail.com> <6f42cb43-c281-4565-b968-afc34502b9fb@googlemail.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <6f42cb43-c281-4565-b968-afc34502b9fb@googlemail.com> On Thu, Mar 05, 2026 at 11:06:06PM +0100, Peter Schneider wrote: >This gives me some vibes of "It compiles, so let's ship it", which is >a questionable level of QA you might expect from some (shady) >commercial companies, but I think the Linux community should (and >can!) do better. I really want to highlight this part. There are no IMA tests I'm aware of (outside of builds with CONFIG_IMA=y). For that matter, we only see a minority of subsystems actually testing stable releases. This is something we've been working to improve for a while, but we're quite far from that goal. Sadly your vibes are somewhat grounded in reality. >Sorry if that sounds too harsh. I don't mean it in a harsh way, but >only as constructive criticism. I know Greg and you have an extremely >complex job with maintaining the stable branches, and normally all >works very well and smooth, because both of you are doing a hell of an >excellent job! But on occasion when a release was bumpy like this one, >we should look back and ask why, and what could have done better, and >how we can improve in the future. This is not, and I appreciate the feedback. Thank you. -- Thanks, Sasha