Commit 80a68a43 authored by Stuart Menefy's avatar Stuart Menefy Committed by Paul Mundt
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sh: Add a printk() to warn legacy mem= growers.

mem= can't be used to grow the size of kernel memory, so provide a
warning to that effect.
Signed-off-by: default avatarStuart Menefy <>
Signed-off-by: default avatarPaul Mundt <>
parent 74d99a5e
......@@ -84,6 +84,17 @@ static int __init early_parse_mem(char *p)
memory_start = (unsigned long)PAGE_OFFSET+__MEMORY_START;
size = memparse(p, &p);
if (size > __MEMORY_SIZE) {
static char msg[] __initdata = KERN_ERR
"Using mem= to increase the size of kernel memory "
"is not allowed.\n"
" Recompile the kernel with the correct value for "
return 0;
memory_end = memory_start + size;
return 0;
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