Commit 1f73ad3e authored Nov 11, 2020 by David Hildenbrand Committed by Michael Ellerman Nov 19, 2020

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

parent e5b2af04

arch/powerpc/mm/mem.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -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

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