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powerpc/mm: print warning in arch_remove_linear_mapping() 

Let's print a warning similar to in arch_add_linear_mapping() instead of
WARN_ON_ONCE() and eventually crashing the kernel.

Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201111145322.15793-6-david@redhat.com
This commit is contained in:
David Hildenbrand 2020-11-11 15:53:19 +01:00 committed by Michael Ellerman
parent e5b2af044f
commit 1f73ad3e8d
1 changed files with 3 additions and 1 deletions
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4
arch/powerpc/mm/mem.c
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@ -150,7 +150,9 @@ void __ref arch_remove_linear_mapping(u64 start, u64 size)
mutex_lock(&linear_mapping_mutex);
ret = remove_section_mapping(start, start + size);
mutex_unlock(&linear_mapping_mutex);
WARN_ON_ONCE(ret);
if (ret)
pr_warn("Unable to remove linear mapping for 0x%llx..0x%llx: %d\n",
start, start + size, ret);
/* Ensure all vmalloc mappings are flushed in case they also
* hit that section of memory