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Fri, 5 Jun 2026 12:05:59 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id XJSNFKe7ImqZQQAAD6G6ig (envelope-from ); Fri, 05 Jun 2026 12:05:59 +0000 Date: Fri, 05 Jun 2026 14:05:58 +0200 Message-ID: <87v7bxtcnt.wl-tiwai@suse.de> From: Takashi Iwai To: Thorsten Leemhuis Cc: Takashi Iwai , Rong Zhang , Jaroslav Kysela , Takashi Iwai , Jonathan Corbet , Shuah Khan , Steve Smith , linux-sound@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Linux kernel regressions list Subject: Re: [PATCH v4 0/3] ALSA: usb-audio: Add QUIRK_FLAG_MIXER_GET_CUR_BROKEN In-Reply-To: <37b3d366-7a22-4117-8be8-821098246885@leemhuis.info> References: <20260531-uac-quirk-get-cur-vol-v4-0-ede643dca151@rong.moe> <87se77o9xr.wl-tiwai@suse.de> <37b3d366-7a22-4117-8be8-821098246885@leemhuis.info> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/30.2 Mule/6.0 Precedence: bulk X-Mailing-List: linux-doc@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 X-Spam-Flag: NO X-Rspamd-Action: no action X-Spam-Level: X-Spamd-Result: default: False [-3.51 / 50.00]; BAYES_HAM(-3.00)[100.00%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-1.000]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; URIBL_BLOCKED(0.00)[imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns,suse.de:mid,suse.de:dkim]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; ARC_NA(0.00)[]; FUZZY_RATELIMITED(0.00)[rspamd.com]; RCPT_COUNT_TWELVE(0.00)[12]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; FREEMAIL_CC(0.00)[suse.de,rong.moe,perex.cz,suse.com,lwn.net,linuxfoundation.org,gmail.com,vger.kernel.org,lists.linux.dev]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; DNSWL_BLOCKED(0.00)[2a07:de40:b281:106:10:150:64:167:received]; RCVD_VIA_SMTP_AUTH(0.00)[]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; DKIM_TRACE(0.00)[suse.de:+]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns,suse.de:mid,suse.de:dkim] X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Rspamd-Queue-Id: AE8DA75956 X-Spam-Score: -3.51 On Fri, 05 Jun 2026 14:00:02 +0200, Thorsten Leemhuis wrote: > > On 5/31/26 17:50, Takashi Iwai wrote: > > On Sun, 31 May 2026 17:45:19 +0200, > > Rong Zhang wrote: > >> > >> Since commit 86aa1ea1f15c ("ALSA: usb-audio: Do not expose sticky > >> mixers"), the UAC mixer core utilizes volume SET_CUR and GET_CUR to > >> identify devices with sticky mixers. Unfortunately, even though most > >> devices with sticky GET_CUR also have corresponding sticky SET_CUR, > >> which I actually met more since the commit had been merged, there is > >> also a rare case that some devices may have volume mixers that responds > >> to SET_CUR properly but with its GET_CUR stubbed. This cause the sticky > >> check to consider the mixer to be sticky and unnecessarily disable it. > > [...] > > > > Now took all three patches onto for-next branch. Thanks. > > I noticed that patch 1 is somewhat on the larger side, nevertheless > allow me to ask: wouldn't it be better to mainline this for -rc7, as > this fixes a regression from the 7.1 cycle? Or did I misjudge this? Then > don't hesitate to tell me! A regression fix will be included in the upcoming PR by another commit aa2f4addab44407c7aa742321de5dc1914ab5762. Takashi