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    Subject[PATCH 5.10 006/593] ALSA: firewire-motu: fix stream format for MOTU 8pre FireWire
    Date
    From: Takashi Sakamoto <o-takashi@sakamocchi.jp>

    commit fc36ef80ca2c68b2c9df06178048f08280e4334f upstream.

    My previous refactoring for ALSA firewire-motu driver brought regression
    to handle MOTU 8pre FireWire. The packet format is not operated correctly.

    Cc: <stable@vger.kernel.org>
    Fixes: dfbaa4dc11eb ("ALSA: firewire-motu: add model-specific table of chunk count")
    Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
    Link: https://lore.kernel.org/r/20210614083133.39753-1-o-takashi@sakamocchi.jp
    Signed-off-by: Takashi Iwai <tiwai@suse.de>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    sound/firewire/motu/motu-protocol-v2.c | 5 +++--
    1 file changed, 3 insertions(+), 2 deletions(-)

    --- a/sound/firewire/motu/motu-protocol-v2.c
    +++ b/sound/firewire/motu/motu-protocol-v2.c
    @@ -353,6 +353,7 @@ const struct snd_motu_spec snd_motu_spec
    .protocol_version = SND_MOTU_PROTOCOL_V2,
    .flags = SND_MOTU_SPEC_RX_MIDI_2ND_Q |
    SND_MOTU_SPEC_TX_MIDI_2ND_Q,
    - .tx_fixed_pcm_chunks = {10, 6, 0},
    - .rx_fixed_pcm_chunks = {10, 6, 0},
    + // Two dummy chunks always in the end of data block.
    + .tx_fixed_pcm_chunks = {10, 10, 0},
    + .rx_fixed_pcm_chunks = {6, 6, 0},
    };

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