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952b13c215
The current conversion from the legacy SysEx event to UMP SysEx packet
in the sequencer core has a couple of issues:
* The first packet trims the SysEx start byte (0xf0), hence it
contains only 5 bytes instead of 6. This isn't wrong, per
specification, but it's strange not to fill 6 bytes.
* When the SysEx end marker (0xf7) is placed at the first byte of the
next packet, it'll end up with an empty data just with the END
status. It can be rather folded into the previous packet with the
END status.
This patch tries to address those issues. The first packet may have 6
bytes even with the SysEx start, and an empty packet with the SysEx
end marker is omitted.
Fixes: e9e02819a9 ("ALSA: seq: Automatic conversion of UMP events")
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20240726143455.3254-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Linux kernel
============
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Please read the Documentation/process/changes.rst file, as it contains the
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the problems which may result by upgrading your kernel.