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OpenCloudOS-Kernel/sound/core
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Takashi Iwai 8dd4a10fdc ALSA: seq: ump: Optimize conversions from SysEx to UMP 
commit 952b13c215234855d75ef4b5bb0138075e73677c upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2024-08-11 12:47:25 +02:00
..
oss ALSA: control: Introduce unlocked version for snd_ctl_find_*() helpers 2023-07-20 10:03:00 +02:00
seq ALSA: seq: ump: Optimize conversions from SysEx to UMP 2024-08-11 12:47:25 +02:00
Kconfig ALSA: ump: Add legacy raw MIDI support 2023-05-23 12:11:09 +02:00
Makefile ALSA: Drop leftover snd-rtctimer stuff from Makefile 2024-03-06 14:48:37 +00:00
compress_offload.c ALSA: compress: Don't embed device 2023-08-17 09:24:15 +02:00
control.c ALSA: control: Don't embed ctl_dev 2023-08-17 09:23:30 +02:00
control_compat.c ALSA: control: Introduce unlocked version for snd_ctl_find_*() helpers 2023-07-20 10:03:00 +02:00
control_led.c ALSA: control: Don't embed ctl_dev 2023-08-17 09:23:30 +02:00
ctljack.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
device.c ALSA: core: Fix missing return value comments for kernel docs 2022-07-13 13:42:38 +02:00
hrtimer.c ALSA: timer: Replace tasklet with work 2020-09-09 18:32:52 +02:00
hwdep.c ALSA: hwdep: Don't embed device 2023-08-17 09:24:01 +02:00
hwdep_compat.c ALSA: compat_ioctl: avoid compat_alloc_user_space 2020-09-21 10:37:07 +02:00
info.c ALSA: info: Fix potential deadlock at disconnection 2023-11-28 17:20:10 +00:00
info_oss.c ALSA: oss: remove useless NULL check before kfree 2021-12-06 10:08:13 +01:00
init.c ALSA: core: Remove debugfs at disconnection 2024-06-12 11:12:55 +02:00
isadma.c sound updates for 6.0-rc1 2022-08-06 10:19:51 -07:00
jack.c ALSA: core: Remove debugfs at disconnection 2024-06-12 11:12:55 +02:00
memalloc.c ALSA: memalloc: Workaround for Xen PV 2023-01-27 09:16:24 +01:00
memalloc_local.h ALSA: memalloc: remove snd_dma_sg_ops declaration 2022-09-09 09:09:40 +02:00
memory.c ALSA: core: Add memory copy helpers between iov_iter and iomem 2023-08-18 12:18:16 +02:00
misc.c ALSA: core: Add async signal helpers 2022-07-29 12:57:10 +02:00
pcm.c ALSA: pcm: fix out-of-bounds in snd_pcm_state_names 2023-12-13 18:45:20 +01:00
pcm_compat.c ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl 2023-08-29 16:03:11 +02:00
pcm_dmaengine.c ALSA: pcm_dmaengine: Don't synchronize DMA channel when DMA is paused 2024-07-27 11:34:10 +02:00
pcm_drm_eld.c ALSA: pcm: fix ELD constraints for (E)AC3, DTS(-HD) and MLP formats 2023-06-25 08:42:53 +02:00
pcm_iec958.c ALSA: iec958: Split status creation and fill 2021-06-08 17:05:41 +02:00
pcm_lib.c ALSA: pcm: Fix error checks of default read/write copy ops 2023-09-02 08:11:48 +02:00
pcm_local.h ALSA: pcm: Revert "ALSA: pcm: rewrite snd_pcm_playback_silence()" 2023-05-05 18:23:48 +02:00
pcm_memory.c ALSA: pcm: Fix potential data race at PCM memory allocation helpers 2023-07-03 14:52:27 +02:00
pcm_misc.c ALSA: pcm: Test for "silence" field in struct "pcm_format_data" 2022-04-11 09:27:56 +02:00
pcm_native.c ALSA: PCM: Allow resume only for suspended streams 2024-07-25 09:50:52 +02:00
pcm_param_trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pcm_timer.c ALSA: timer: Constify snd_timer_hardware definitions 2020-01-03 09:24:07 +01:00
pcm_trace.h ALSA: pcm: fix tracing reason in hw_ptr_error 2022-11-28 14:55:41 +01:00
rawmidi.c ALSA: rawmidi: Fix NULL dereference at proc read 2023-09-16 08:08:05 +02:00
rawmidi_compat.c ALSA: rawmidi: UMP support 2023-05-23 12:10:54 +02:00
seq_device.c ALSA: seq: Fix a potential UAF by wrong private_free call order 2021-09-30 14:13:22 +02:00
sound.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
sound_oss.c ALSA: oss: Fix potential deadlock at unregistration 2022-10-11 09:02:43 +02:00
timer.c ALSA: timer: Set lower bound of start tick time 2024-06-12 11:13:00 +02:00
timer_compat.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
ump.c ALSA: ump: Force 1 Group for MIDI1 FBs 2024-08-03 08:54:20 +02:00
ump_convert.c ALSA: ump: Don't clear bank selection after sending a program change 2024-06-16 13:47:46 +02:00
vmaster.c ALSA: vmaster: Add snd_ctl_add_followers() helper 2023-07-21 09:37:47 +02:00