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um: Do not propagate mem 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 be passed to user space as
an environment option by kernel with a warning like:

Unknown kernel command line parameters "mem=2G", will be passed to user space.

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Link: https://patch.msgid.link/20241011040441.1586345-3-tiwei.btw@antgroup.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Tiwei Bie
2024-10-11 12:04:34 +08:00
committed by Johannes Berg
parent a34d105350
commit cb055b2135
1 changed files with 2 additions and 0 deletions
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2
arch/um/kernel/physmem.c
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@@ -139,6 +139,8 @@ EXPORT_SYMBOL(phys_mapping);
static int __init uml_mem_setup(char *line, int *add)
{
char *retptr;
*add = 0;
physmem_size = memparse(line,&retptr);
return 0;
}