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h=X-UI-Sender-Class:Date:Subject:To:Cc:References:From: In-Reply-To; b=WHgJuTwuMe0lcAnaaUKXKkTUADxwNouk5/+zO5KRsXYrZaSdaxWllh5jbcNtxJD6 ZgqvwCxNtL1q1bY+T6FemBuLt/LJBv8gJDODjrjDyeqBkagPqFifb5Vg6dNTnOVDO vRZmBd6tqU+3dTXEGztccCL5cgZ9mIzGogsru9MxHA3N+p3J4wDS81gvn+l1rt76K hVrAjUWxQvfRHuyoU0amjaTOK7C2UCxj4tAwgL7XJAg/wYbSJuAzgLhXoOcSH91nZ SFYszQVe7W9fc7rP3vt+MwxOzlXKEsPCY89JmwkBXH18Vqfvq/gL+1f/fAKxJJaY0 5UuxaCB9/PwLycp3Zg== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from [192.168.20.55] ([94.134.154.236]) by mail.gmx.net (mrgmx104 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MQvD5-1rjw6r00QB-00NzUF; Tue, 30 Jan 2024 08:49:34 +0100 Message-ID: <90cd0f1a-29c0-4c6f-9efd-92b69da194c0@gmx.de> Date: Tue, 30 Jan 2024 08:49:32 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Build regressions/improvements in v6.8-rc2 Content-Language: en-US To: Guenter Roeck , Geert Uytterhoeven , linux-kernel@vger.kernel.org Cc: sparclinux@vger.kernel.org, linux-parisc@vger.kernel.org, linux-hwmon@vger.kernel.org, intel-xe@lists.freedesktop.org References: <20240129104954.1778339-1-geert@linux-m68k.org> <8ea40b3-adde-acb5-5e46-fe1fd395daf@linux-m68k.org> <56b9c222-4e97-4eda-89af-3e0d0c39acb2@roeck-us.net> From: Helge Deller Autocrypt: addr=deller@gmx.de; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:AqA82jXkHCsmc5MtDkJ1eTjYy5SiywwJBhM+J9cbQ44sBANzi6O ZTYDbosnCyJv9w/UFn+xQLdFDC8txwihAHo1KVQHw/KlMCJpxb9LAJE9aDGqiMX6+9T9kzR /Vav7f2CaDCIHq9ygHNjk8JvObh+sZu11YLbTmdfv1m35WtgZwiVHQ07cXPHxapZpOvUuOV LCJoMKoT/DTSkbYrZanOw== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:u8DYBQ3KSfM=;uc3ACzysU1ccETxkeaT7X8nb/Va AEzYMHjEDZeE9wXhTKevnHjWpG51cK0RJWVE28VCFUZ6CJYi93jZXu5fjRJWRRFkqGjAAt1b6 PDrp1mScZjcEHhw2jucor2JwcyqvdZOfMxyQPoWHZwpzGZ1Zv7Y4YN3tXpEsNb2AqXesoGDU7 mwjWkvb8H0AuDSeCLSrZt/EW+Y7OtShaDjPCYUSZps+1LlwjuOKZFdJ/dNVU3RAZdouGkIJsS gv9QRLx8DvIqEHTMKhRQvS1cqZobMnGZuLMn++rwK3A8w77TGYKq2hPS+qVdC6zEWgRpFAZJD j45ORhbM90aiIPk4DDCLJk7JEP/t248lmdhaC1XXueEAIG/vxI2OnoNMovBY3X/BSn63gOsUP g5F9HcLfKhYdIxFVGIXLazcyp6M4OOuUpIiwL4Gx7eTaWmLjF8i+dbi0QTeFjww5xhAtqU5+V 3XvUnV2uuwjtn001WUMFU2XNS5vEVwcc1xOxQ6j0hYoMusOrbeSa0o1Fe3O0I+0WbL6nd1Dcq h5L0GbyLDFUtbwViqpeqWQe24mfm5U5ITUxQT7m2MNbFD4YL1JhPc3OVvEk/UzkJVqRvPEVM8 6/Wsg8CpSlN6bjDQw+Q+NTXIDCGvXSPdPR3oi+PT7V9Vk6n8yb57xqyxMe+M4me79qOEG+CLk AMNEQI75p1CymJ0ASZZhbA+IMDFm4LSC+F6W/CCu05uukJzTGzsBTo4iyv7FUAzvQ8TzKklll Xzh+q2b9dFc/s77sgjRgr4agG1oTuaBBmwrUblL/7O1JNopJ1jXzQKMMahOreXmNuqfspZ9va 7Xfm18hR8Ry1wfw1llAkJIBqPaYcSRv8obSTjb28+0SE2jNvjAusvWe+vocwkqILy7XQT43EE 9G6MYqiVymwXAaDw/Sq76iUB0fvoSw76bHLEvIJQrPYtKrZbWr2qJIRGC+JM7uLB/NhlM4iQp oZdqxA== On 1/29/24 15:58, Guenter Roeck wrote: > On 1/29/24 03:06, Geert Uytterhoeven wrote: > [ ... ] >> parisc-gcc1[23]/parisc-{allmod,def}config >> >> =C2=A0=C2=A0 + /kisskb/src/drivers/hwmon/pc87360.c: error: writing 1 by= te into a region of size 0 [-Werror=3Dstringop-overflow=3D]:=C2=A0 =3D> 38= 3:51 >> > > The "fix" for this problem would be similar to commit 4265eb062a73 ("hwm= on: (pc87360) > Bounds check data->innr usage"). The change would be something like > > -=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0 for (i =3D 0; i < data->tempnr; i++) { > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0 for (i =3D 0; i < min(data->tempnr, ARRAY_SIZE(data->temp_= max)); i++) { > > but that would be purely random because the loop accesses several arrays > indexed with i, and tempnr is never >=3D ARRAY_SIZE(data->temp_max). > I kind of resist making such changes to the code just because the compil= er > is clueless. I agree with your analysis. But I'm wondering why this warning just seem to appear on parisc. I would expect gcc on other platforms to complain as well ?!? Helge > Are we sprinkling the kernel code with code like this to make the compil= er happy ? > > Guenter > >