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 A02061D61A3; Mon, 6 Oct 2025 19:08:26 +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=1759777706; cv=none; b=ZlE6mvjrqMW8l0X0JbL6pGtmekn0jEv4TY/egC+i0xqaORBvNbQW4xvk6mHCRgHM0vaKoVBl/PdiLRTPXg9rH8GW1OJlncypvFjplIj8jz/uGi1VOCVPjiOWM9313/bk9etO53B42Sd0emmRjoHfcEpKd0Udv2286dxmRBK7TA0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759777706; c=relaxed/simple; bh=y7eB5Aq5t61EIBq8FizZqyAOn5r9BRoMjG9Gdpz6Tzo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Vh3isF4Yv3iGI3vZ07VmtjLteKX6M/sEhSr5V/C7b2gs3H6nh4G7XV6aapuuOrtab9Ps8Mq0uce8dmpqATDtdfdzFUGsA8x2b+CWlNDb6aVPOWHjZh1UbLIGs80xEN316jrpmsFcHeMyr/ZJyTnMattvo96djDEYmt8Ag6sh3f8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=uD8hJPWF; 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="uD8hJPWF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2CD38C4CEF5; Mon, 6 Oct 2025 19:08:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1759777705; bh=y7eB5Aq5t61EIBq8FizZqyAOn5r9BRoMjG9Gdpz6Tzo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=uD8hJPWFbKLdWtulj5XUIgCrgpIcXYfvHT3M5zcTUwJx1jEWY9+hLIGQtBcBkAUmw aw6NdNg7CAlhFc2cpBwi7dDlXnRBv6CeW0mahR9pAxsbLsG6z/uQvR2nBsDicZgIhc Wp7PA+XsGZG4KcPFfEFda/4JIgRQsRyorjpZOI1MeAFcgefs+fuBvBxe0YFFHwicea ETsv4DZwn81arKsESHcZ9H4om40CElC0vToQ9HpDxiqOBFw6xz1Nl9IxwwStJkn2E3 JCUoblTAm/VMMN75XQyLiCL81CvjUtiRxD0Axr83xKYZHe8/kreEvJR27D6hnhZNY3 L2JuBxXk++h2Q== Date: Mon, 6 Oct 2025 12:08:19 -0700 From: Nathan Chancellor To: Armin Wolf Cc: kernel test robot , ilpo.jarvinen@linux.intel.com, hdegoede@redhat.com, chumuzero@gmail.com, corbet@lwn.net, cs@tuxedo.de, wse@tuxedocomputers.com, ggo@tuxedocomputers.com, llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org, rdunlap@infradead.org, alok.a.tiwari@oracle.com, linux-leds@vger.kernel.org, lee@kernel.org, pobrn@protonmail.com Subject: Re: [PATCH v4 1/2] platform/x86: Add Uniwill laptop driver Message-ID: <20251006190819.GA2406882@ax162> References: <20250928013253.10869-2-W_Armin@gmx.de> <202509290415.uez00SgW-lkp@intel.com> <6146d57b-f855-40b1-a644-3af6b28ceea4@gmx.de> <20251002233627.GA3978676@ax162> <402f254d-7217-43e8-867f-66daab3ead86@gmx.de> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <402f254d-7217-43e8-867f-66daab3ead86@gmx.de> On Sun, Oct 05, 2025 at 08:06:57PM +0200, Armin Wolf wrote: > Am 03.10.25 um 01:36 schrieb Nathan Chancellor: > > > Hi Armin, > > > > On Thu, Oct 02, 2025 at 08:41:19PM +0200, Armin Wolf wrote: > > > i think this is a problem inside the clang compiler. I did not encounter this warning when > > > build for x86-64 using gcc. > > Clang is actually saving you from yourself, it is a bug in GCC that it > > does not warn for this: > > > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91951 > > Oh my, i didn't expect that. Thank you for explaining this issue to to me, > it seems that i still have much to learn. In your defense, it is quite a subtle interaction. It is probably worth throwing something in the documentation that explicitly calls this out, though I am not immediately sure of where... Cheers, Nathan