On Wed, 22 Nov 2017 08:52:51 +0100, Takashi Iwai wrote:

On Tue, 21 Nov 2017 17:25:05 +0100, Takashi Iwai wrote:

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On Tue, 21 Nov 2017 17:14:42 +0100, Laura Abbott wrote:

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Hi,

Fedora got a bug report (https://bugzilla.redhat.com/show_bug.cgi?id=1512853) that Line Out stopped working between 4.13.9 and 4.13.10. Reverting 82d745a55779 ("ALSA: hda - Fix incorrect TLV callback check introduced during set_fs() removal") fixed the problem. I didn't ask the reporter to test on 4.14 since I didn't see anything explicitly tagged as fixing the issue. Any ideas?

It might be that the formerly saved asound.state brought the inconsistency. Try to remove the saved state (either /var/lib/alsa/asound.state or /etc/asound.state) after unloading the sound driver modules and reboot/retest.

In anyway, give alsa-info.sh output with the affected machine. Run the script with --no-upload option, and attach the generated file.

BTW, having the output of alsa-info.sh with a bug report helps analysis and debugging quite a lot.

So it'd be appreciated if you can ask it always as the first step for a bug report on Fedora regarding sound. Especially when it's a regression, the outputs on both working and non-working cases would be nice, so that we can compare more precisely.

And yet we got another bug report, and at this time, I could analyze with alsa-info.sh outputs. Below is the fix patch. Give it a try.

Takashi

-- 8< -- From: Takashi Iwai tiwai@suse.de Subject: [PATCH] ALSA: hda - Fix yet remaining issue with vmaster 0dB initialization

The previous fix for addressing the breakage in vmaster slave initialization, commit a91d66129fb9 ("ALSA: hda - Fix incorrect TLV callback check introduced during set_fs() removal"), introduced a new helper to process over each slave kctl. However, this helper passes only the original kctl, not the virtual slave kctl. As a result, HD-audio driver (which is the only user so far) couldn't initialize the slave correctly because it's trying to update the value directly with the original kctl, not with the mapped kctl.

This patch fixes the situation again by passing both the mapped slaved and original slave kctls to the function. Luckily there is a single caller as of now, so changing the call signature is no big matter.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=197959 Fixes: a91d66129fb9 ("ALSA: hda - Fix incorrect TLV callback check introduced during set_fs() removal") Cc: stable@vger.kernel.org Signed-off-by: Takashi Iwai tiwai@suse.de --- include/sound/control.h | 4 +++- sound/core/vmaster.c | 6 ++++-- sound/pci/hda/hda_codec.c | 10 +++++++--- 3 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/include/sound/control.h b/include/sound/control.h index a1f1152bc687..ca13a44ae9d4 100644 --- a/include/sound/control.h +++ b/include/sound/control.h @@ -249,7 +249,9 @@ int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kctl, void snd_ctl_sync_vmaster(struct snd_kcontrol *kctl, bool hook_only); #define snd_ctl_sync_vmaster_hook(kctl) snd_ctl_sync_vmaster(kctl, true) int snd_ctl_apply_vmaster_slaves(struct snd_kcontrol *kctl, - int (*func)(struct snd_kcontrol *, void *), + int (*func)(struct snd_kcontrol *vslave, + struct snd_kcontrol *slave, + void *arg), void *arg);

/* diff --git a/sound/core/vmaster.c b/sound/core/vmaster.c index e43af18d4383..8632301489fa 100644 --- a/sound/core/vmaster.c +++ b/sound/core/vmaster.c @@ -495,7 +495,9 @@ EXPORT_SYMBOL_GPL(snd_ctl_sync_vmaster); * Returns 0 if successful, or a negative error code. */ int snd_ctl_apply_vmaster_slaves(struct snd_kcontrol *kctl, - int (*func)(struct snd_kcontrol *, void *), + int (*func)(struct snd_kcontrol *vslave, + struct snd_kcontrol *slave, + void *arg), void *arg) { struct link_master *master; @@ -507,7 +509,7 @@ int snd_ctl_apply_vmaster_slaves(struct snd_kcontrol *kctl, if (err < 0) return err; list_for_each_entry(slave, &master->slaves, list) { - err = func(&slave->slave, arg); + err = func(slave->kctl, &slave->slave, arg); if (err < 0) return err; } diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index c1f8e5479bf3..e018ecbf78a8 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1823,7 +1823,9 @@ struct slave_init_arg { };

/* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */ -static int init_slave_0dB(struct snd_kcontrol *kctl, void *_arg) +static int init_slave_0dB(struct snd_kcontrol *slave, + struct snd_kcontrol *kctl, + void *_arg) { struct slave_init_arg *arg = _arg; int _tlv[4]; @@ -1860,7 +1862,7 @@ static int init_slave_0dB(struct snd_kcontrol *kctl, void *_arg) arg->step = step; val = -tlv[2] / step; if (val > 0) { - put_kctl_with_value(kctl, val); + put_kctl_with_value(slave, val); return val; }

@@ -1868,7 +1870,9 @@ static int init_slave_0dB(struct snd_kcontrol *kctl, void *_arg) }

/* unmute the slave via snd_ctl_apply_vmaster_slaves() */ -static int init_slave_unmute(struct snd_kcontrol *slave, void *_arg) +static int init_slave_unmute(struct snd_kcontrol *slave, + struct snd_kcontrol *kctl, + void *_arg) { return put_kctl_with_value(slave, 1); }