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[10.67.48.245] ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id x2-20020a05620a12a200b0075931fd621dsm211256qki.42.2023.05.16.16.29.08 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 16 May 2023 16:29:10 -0700 (PDT) Message-ID: <194e2b7a-52c6-5962-b0df-8f8939a95e41@broadcom.com> Date: Tue, 16 May 2023 16:29:07 -0700 Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [PATCH] staging: vchiq_arm: mark vchiq_platform_init() static To: Arnd Bergmann , Florian Fainelli , Greg Kroah-Hartman , Stefan Wahren Cc: Arnd Bergmann , Broadcom internal kernel review list , Umang Jain , Adrien Thierry , Phil Elwell , Peter Zijlstra , =?UTF-8?Q?Uwe_Kleine-K=c3=b6nig?= , linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org References: <20230516202603.560554-1-arnd@kernel.org> From: Florian Fainelli In-Reply-To: <20230516202603.560554-1-arnd@kernel.org> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="0000000000004665b705fbd7f006" --0000000000004665b705fbd7f006 Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 5/16/23 13:25, Arnd Bergmann wrote: > From: Arnd Bergmann > > This function has no callers from other files, and the declaration > was removed a while ago, causing a W=1 warning: > > drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:465:5: error: no previous prototype for 'vchiq_platform_init' > > Marking it static solves this problem but introduces a new warning > since gcc determines that 'g_fragments_base' is never initialized > in some kernel configurations: > > In file included from include/linux/string.h:254, > from include/linux/bitmap.h:11, > from include/linux/cpumask.h:12, > from include/linux/mm_types_task.h:14, > from include/linux/mm_types.h:5, > from include/linux/buildid.h:5, > from include/linux/module.h:14, > from drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:8: > In function 'memcpy_to_page', > inlined from 'free_pagelist' at drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:433:4: > include/linux/fortify-string.h:57:33: error: argument 2 null where non-null expected [-Werror=nonnull] > include/linux/highmem.h:427:9: note: in expansion of macro 'memcpy' > 427 | memcpy(to + offset, from, len); > | ^~~~~~ > > Add a NULL pointer check for this in addition to the static annotation > to avoid both. > > Fixes: 89cc4218f640 ("staging: vchiq_arm: drop unnecessary declarations") > Signed-off-by: Arnd Bergmann Reviewed-by: Florian Fainelli -- Florian --0000000000004665b705fbd7f006 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: 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