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Wed, 27 Mar 2024 09:54:10 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap1.dmz-prg2.suse.org with ESMTPSA id bs/bEcLsA2ZFHQAAD6G6ig (envelope-from ); Wed, 27 Mar 2024 09:54:10 +0000 Date: Wed, 27 Mar 2024 10:54:12 +0100 Message-ID: <87il1880fv.wl-tiwai@suse.de> From: Takashi Iwai To: Arnd Bergmann Cc: llvm@lists.linux.dev, Johannes Berg , Jaroslav Kysela , Takashi Iwai , Nathan Chancellor , Rob Herring , Arnd Bergmann , Nick Desaulniers , Bill Wendling , Justin Stitt , Jakub Kicinski , Dawei Li , linuxppc-dev@lists.ozlabs.org, alsa-devel@alsa-project.org, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 8/9] ALSA: aoa: avoid false-positive format truncation warning In-Reply-To: <20240326223825.4084412-9-arnd@kernel.org> References: <20240326223825.4084412-1-arnd@kernel.org> <20240326223825.4084412-9-arnd@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/27.2 Mule/6.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII Authentication-Results: smtp-out2.suse.de; none X-Spam-Level: X-Spam-Score: -1.10 X-Spamd-Result: default: False [-1.10 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FREEMAIL_ENVRCPT(0.00)[outlook.com]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; NEURAL_HAM_LONG(-1.00)[-1.000]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; RCPT_COUNT_TWELVE(0.00)[17]; MID_CONTAINS_FROM(1.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[arndb.de:email]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_CC(0.00)[lists.linux.dev,sipsolutions.net,perex.cz,suse.com,kernel.org,arndb.de,google.com,outlook.com,lists.ozlabs.org,alsa-project.org,vger.kernel.org]; RCVD_TLS_ALL(0.00)[]; BAYES_HAM(-0.80)[84.71%] X-Spam-Flag: NO On Tue, 26 Mar 2024 23:38:07 +0100, Arnd Bergmann wrote: > > From: Arnd Bergmann > > clang warns about what it interprets as a truncated snprintf: > > sound/aoa/soundbus/i2sbus/core.c:171:6: error: 'snprintf' will always be truncated; specified size is 6, but format string expands to at least 7 [-Werror,-Wformat-truncation-non-kprintf] > > The actual problem here is that it does not understand the special > %pOFn format string and assumes that it is a pointer followed by > the string "OFn", which would indeed not fit. > > Slightly increasing the size of the buffer to its natural alignment > avoids the warning, as it is now long enough for the correct and > the incorrect interprations. > > Fixes: b917d58dcfaa ("ALSA: aoa: Convert to using %pOFn instead of device_node.name") > Signed-off-by: Arnd Bergmann Applied this one now to sound.git tree. Thanks. Takashi