This is a note to let you know that I've just added the patch titled ALSA: hda - Fix spurious kernel WARNING on Baytrail HDMI to the 4.5-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: alsa-hda-fix-spurious-kernel-warning-on-baytrail-hdmi.patch and it can be found in the queue-4.5 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 93a9ff151754fbdf951b1b993bcf96453f6e36b3 Mon Sep 17 00:00:00 2001 From: Takashi Iwai <tiwai@xxxxxxx> Date: Fri, 18 Mar 2016 19:45:13 +0100 Subject: ALSA: hda - Fix spurious kernel WARNING on Baytrail HDMI MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Takashi Iwai <tiwai@xxxxxxx> commit 93a9ff151754fbdf951b1b993bcf96453f6e36b3 upstream. snd_hdac_sync_audio_rate() call is mandatory only for HSW and later models, but we call the function unconditionally blindly assuming that the function doesn't do anything harmful. But since recently, the function checks the validity of the passed pin NID, and eventually spews the warning if an unexpected pin is passed. This is seen on old chips like Baytrail. The fix is to limit the call of this function again only for the chips with the proper binding. This can be identified by the same flag as the eld notifier. Reported-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Tested-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- sound/pci/hda/patch_hdmi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1873,7 +1873,8 @@ static int generic_hdmi_playback_pcm_pre /* Call sync_audio_rate to set the N/CTS/M manually if necessary */ /* Todo: add DP1.2 MST audio support later */ - snd_hdac_sync_audio_rate(&codec->bus->core, pin_nid, runtime->rate); + if (codec_has_acomp(codec)) + snd_hdac_sync_audio_rate(&codec->bus->core, pin_nid, runtime->rate); non_pcm = check_non_pcm_per_cvt(codec, cvt_nid); mutex_lock(&per_pin->lock); Patches currently in stable-queue which might be from tiwai@xxxxxxx are queue-4.5/alsa-hda-apply-reboot-d3-fix-for-cx20724-codec-too.patch queue-4.5/alsa-intel8x0-add-clock-quirk-entry-for-ad1981b-on-ibm-thinkpad-x41.patch queue-4.5/alsa-hda-add-new-gpu-codec-id-0x10de0082-to-snd-hda.patch queue-4.5/alsa-hda-limit-i915-hdmi-binding-only-for-hsw-and-later.patch queue-4.5/alsa-hda-fix-unexpected-resume-through-regmap-code-path.patch queue-4.5/alsa-hda-fix-missing-eld-update-at-unplugging.patch queue-4.5/alsa-hda-really-restrict-i915-notifier-to-hsw.patch queue-4.5/alsa-usb-audio-add-microsoft-hd-5001-to-quirks.patch queue-4.5/alsa-hda-workaround-for-unbalanced-i915-power-refcount-by-concurrent-probe.patch queue-4.5/alsa-usb-audio-fix-null-dereference-in-create_fixed_stream_quirk.patch queue-4.5/alsa-hda-fix-spurious-kernel-warning-on-baytrail-hdmi.patch queue-4.5/alsa-usb-audio-minor-code-cleanup-in-create_fixed_stream_quirk.patch queue-4.5/alsa-pcm-avoid-bug-string-for-warnings-again.patch queue-4.5/alsa-usb-audio-fix-double-free-in-error-paths-after-snd_usb_add_audio_stream-call.patch queue-4.5/alsa-hda-fix-unconditional-gpio-toggle-via-automute.patch queue-4.5/alsa-hda-don-t-handle-eld-notify-from-invalid-port.patch queue-4.5/alsa-usb-audio-add-sanity-checks-for-endpoint-accesses.patch queue-4.5/alsa-hda-fix-the-mic-mute-button-and-led-problem-for-a-lenovo-aio.patch queue-4.5/alsa-hda-fix-forgotten-hdmi-monitor_present-update.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html