From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 3 Jan 2013 14:25:11 +0000 (+0100)
Subject: ALSA: hda - Revive snd_hda_get_conn_list()
X-Git-Tag: v3.9-rc1~129^2~70^2~110
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ee8e765b0b6c9274e255025318cf8da1a3e30d45;p=pandora-kernel.git

ALSA: hda - Revive snd_hda_get_conn_list()

Manage the connection list cache using linked lists instead of
snd_array, and revive snd_hda_get_conn_list() again, so that we don't
have to keep the expanded values locally.
This will reduce the stack usage by recursive call of
snd_hda_get_conn_index() or parse_nid_path() of the generic parser.

The list management doesn't include any mutex protection, thus the
caller needs to take care of race appropriately.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
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