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um: hostaudio: Do not propagate mixer parameter to kernel

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This parameter is UML specific and is unknown to kernel. It should
not be propagated to kernel, otherwise it will trigger a warning and
be passed to user space as an environment option.

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Link: https://patch.msgid.link/20241011040441.1586345-9-tiwei.btw@antgroup.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Tiwei Bie 2024-10-11 12:04:40 +08:00 committed by Johannes Berg
parent 4e2e4ea0d8
commit 3f48113df3
1 changed files with 1 additions and 0 deletions
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arch/um/drivers/hostaudio_kern.c
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@ -57,6 +57,7 @@ __uml_setup("dsp=", set_dsp, "dsp=<dsp device>\n" DSP_HELP);
static int set_mixer(char *name, int *add)
{
*add = 0;
mixer = name;
return 0;
}