Patch "ALSA: hda: when comparing pin configurations, ignore assoc in addition to seq" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

ALSA: hda: when comparing pin configurations, ignore assoc in addition to seq

to the 4.4-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-when-comparing-pin-configurations-ignore-assoc-in-addition-to-seq.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Kai-Heng Feng <[email protected]>
Date: Tue, 6 Dec 2016 16:56:27 +0800
Subject: ALSA: hda: when comparing pin configurations, ignore assoc in addition to seq

From: Kai-Heng Feng <[email protected]>

commit 5e0ad0d8747f3e4803a9c3d96d64dd7332506d3c upstream.

Commit [64047d7f4912 ALSA: hda - ignore the assoc and seq when comparing pin configurations] intented to ignore both seq and assoc at pin comparing, but it only ignored seq. So that commit may still fail to match pins on some machines.
Change the bitmask to also ignore assoc.

v2: Use macro to do bit masking.

Thanks to Hui Wang for the analysis.

---
 sound/pci/hda/hda_auto_parser.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

@@ -884,6 +884,8 @@ void snd_hda_apply_fixup(struct hda_code
 }
 EXPORT_SYMBOL_GPL(snd_hda_apply_fixup);
 
+#define IGNORE_SEQ_ASSOC (~(AC_DEFCFG_SEQUENCE | AC_DEFCFG_DEF_ASSOC))
+
 static bool pin_config_match(struct hda_codec *codec,
 			     const struct hda_pintbl *pins)
 {

@@ -901,7 +903,7 @@ static bool pin_config_match(struct hda_
 		for (; t_pins->nid; t_pins++) {
 			if (t_pins->nid == nid) {
 				found = 1;
-				if ((t_pins->val & 0xfffffff0) == (cfg & 0xfffffff0))
+				if ((t_pins->val & IGNORE_SEQ_ASSOC) == (cfg & IGNORE_SEQ_ASSOC))
 					break;
 				else if ((cfg & 0xf0000000) == 0x40000000 && (t_pins->val & 0xf0000000) == 0x40000000)
 					break;

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/alsa-hda-when-comparing-pin-configurations-ignore-assoc-in-addition-to-seq.patch