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Wed, 18 Mar 2026 08:01:02 -0700 (PDT) X-Received: by 2002:ac8:5755:0:b0:509:4410:4492 with SMTP id d75a77b69052e-50b14796234mr47710741cf.22.1773846061978; Wed, 18 Mar 2026 08:01:01 -0700 (PDT) Received: from [192.168.1.29] ([178.197.219.94]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4856eaee04fsm144565215e9.13.2026.03.18.08.01.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Mar 2026 08:01:01 -0700 (PDT) Message-ID: Date: Wed, 18 Mar 2026 16:00:59 +0100 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RESEND 1/2] powerpc/ps3: Drop redundant result assignment To: "Christophe Leroy (CS GROUP)" , Segher Boessenkool Cc: Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Geoff Levand , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev References: <20260317130823.240279-3-krzysztof.kozlowski@oss.qualcomm.com> <9434f836-aa96-44e7-8f34-243d6c94f6dc@kernel.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzysztof.kozlowski@oss.qualcomm.com; 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charset=UTF-8 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=TPhIilla c=1 sm=1 tr=0 ts=69babe30 cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=gOEeR9iKwsj33Yj5oN/cWg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=LO4XtezffzH7F-Og_NQA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-ORIG-GUID: PiJovMqCdf8VnO-gBpzfS-_RrVy82t_9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzE4MDEyNyBTYWx0ZWRfX37D5HYintzj7 9tepI2fqhnZWcZLTdQ3ix+sovd9J1wFBkMJmpBS1c9XNc0rG4AYE3eU6psq2n0lJMsOXamSwXs6 pvHtgdKIS4yYnpiQ2EToBjPJIQ9GJZ2i8K5/VnKKy2GTixGQ8Dqbe7KMS0VG2741HVK6/8mcOy6 BI1SOCtZ8zuFwyxI5inCwEY8rsB7N6jOVw74V+cYZ6YIVa1SnQ7tib5/agO1sTaVwYR6KQTDGpY tNvpJD2fXOtNFqF29jw9pgweXObcT2MzcZb9SlCbxteACzRaonN6tHXwCf6d94iXtxpFuhvorUO E8J6GwQAYqoEOQtl8bbsvdLJrJMgA0pZH7mfKAhDmGMV/XqdFLAp9M5U/ki7DLRmLXQUyGCkNRW UWNDZY9gRlcx93cTyqS7AU85XYXAUQ== X-Proofpoint-GUID: PiJovMqCdf8VnO-gBpzfS-_RrVy82t_9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-18_01,2026-03-17_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 suspectscore=0 bulkscore=0 lowpriorityscore=0 spamscore=0 malwarescore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603180127 On 18/03/2026 13:21, Christophe Leroy (CS GROUP) wrote: > > > Le 18/03/2026 à 12:58, Segher Boessenkool a écrit : >> On Wed, Mar 18, 2026 at 12:54:30PM +0100, Krzysztof Kozlowski wrote: >>> On 18/03/2026 12:51, Segher Boessenkool wrote: >>>> On Tue, Mar 17, 2026 at 02:08:24PM +0100, Krzysztof Kozlowski wrote: >>>>> Return value of ps3_start_probe_thread() is not used, so code can be >>>>> simplified to fix W=1 clang warnings: >>>>> >>>>> arch/powerpc/platforms/ps3/device-init.c:953:6: error: variable 'result' set but not used [-Werror,-Wunused-but-set-variable] >>>> >>>> And this is exactly why -Werror is harmful. A boring harmless warning >>>> turned into a build break :-( >>> >>> -Werror does not matter here. We do not want warnings either, assuming >>> of course they are correct. >>> >>> So if this warning is correct, then patch should be applied and WERROR >>> is irrelevant. >> >> The build is broken. -Werror is positively harmful. >> >> Yes, you want the warnings fixed, but maybe something else has priority >> right now? > > But if I understand correctly this is a build performed with W=1 Yes > > Without W=1 there is no build breakage. There is no build breakage with W=1. This is somehow total offtopic or trolling. :/ > > Someone who forces W=1 on its build can be expected to unselect > CONFIG_PPC_WERROR if it is needed for him, no ? Of course :). Best regards, Krzysztof