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[177.4.161.87]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2e539fa6134sm19204952eec.3.2026.04.21.05.14.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 21 Apr 2026 05:14:36 -0700 (PDT) Message-ID: <8168eb7f-2e07-4f77-9b3a-38ee25bfa9e5@gmail.com> Date: Tue, 21 Apr 2026 09:14:31 -0300 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: [PATCH 0/4] usb-audio: fix mixer write failure handling To: Takashi Iwai Cc: Takashi Iwai , Chris J Arges , Detlef Urban , Jaroslav Kysela , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20260419-usb-write-error-propagation-v1-0-5a3bd4a673ae@gmail.com> <87v7dkag5r.wl-tiwai@suse.de> From: =?UTF-8?Q?C=C3=A1ssio_Gabriel_Monteiro_Pires?= Content-Language: en-US In-Reply-To: <87v7dkag5r.wl-tiwai@suse.de> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------4wcrJbl104l9Fi56M44Fkzr0" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------4wcrJbl104l9Fi56M44Fkzr0 Content-Type: multipart/mixed; boundary="------------YQJlNMRd4p3DuOd5v6KIUDvX"; protected-headers="v1" From: =?UTF-8?Q?C=C3=A1ssio_Gabriel_Monteiro_Pires?= To: Takashi Iwai Cc: Takashi Iwai , Chris J Arges , Detlef Urban , Jaroslav Kysela , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Message-ID: <8168eb7f-2e07-4f77-9b3a-38ee25bfa9e5@gmail.com> Subject: Re: [PATCH 0/4] usb-audio: fix mixer write failure handling References: <20260419-usb-write-error-propagation-v1-0-5a3bd4a673ae@gmail.com> <87v7dkag5r.wl-tiwai@suse.de> In-Reply-To: <87v7dkag5r.wl-tiwai@suse.de> --------------YQJlNMRd4p3DuOd5v6KIUDvX Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 4/21/26 05:09, Takashi Iwai wrote: > On Sun, 19 Apr 2026 22:30:28 +0200, > C=C3=A1ssio Gabriel wrote: >> >> This series fixes usb-audio mixer put() paths that currently report >> success even when the underlying device write fails. >> >> The issue exists in the generic mixer core callbacks, the Scarlett >> Gen1 enum path, and several Tascam US-16x08 put() callbacks. >> >> The US-16x08 EQ and compressor callbacks have an additional bug: they >> update their software shadow state before sending the USB write, so a >> failed transfer can leave later get() results out of sync with the >> hardware state. >> >> The series is split into four patches: >> - propagate write failures in the generic mixer core callbacks >> - fix the Scarlett Gen1 enum callback >> - propagate write failures in the simple US-16x08 put() callbacks >> - commit the US-16x08 EQ and compressor shadow state only after a >> successful write >> >> Successful writes are unchanged. Failed writes are now reported >> correctly, and the US-16x08 shadow state remains coherent with the >> hardware after write errors. >> >> Signed-off-by: C=C3=A1ssio Gabriel >=20 > As this might influence on the actual device behavior significantly, > and it's in a merge window, I postpone the series for 7.2. Thanks for the feedback. =20 > thanks, >=20 > Takashi --=20 Thanks, C=C3=A1ssio --------------YQJlNMRd4p3DuOd5v6KIUDvX-- --------------4wcrJbl104l9Fi56M44Fkzr0 Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature.asc" -----BEGIN PGP SIGNATURE----- wnsEABYIACMWIQSrYqI5vIrg1X9eqEjQXT8aWv/ugwUCaedqJwUDAAAAAAAKCRDQXT8aWv/ug/qM AQCavMbleHfa2Thh7teKJhptqTC7AULyPLDMHDF8+3CS4QEAyNEGvZdT930ozr8ywVtukBNoxadT itI46VedOLyKPgw= =C2ec -----END PGP SIGNATURE----- --------------4wcrJbl104l9Fi56M44Fkzr0--