Commit 02ea2402 authored Jun 04, 2020 by Alistair Delva Committed by Todd Kjos Jul 17, 2020

ANDROID: GKI: Export memblock_free to drivers



On architectures that support the preservation of memblock metadata
after __init, allow drivers to call memblock_free() to free a
reservation made by early arch code. This is a hack to support the
freeing of bootsplash reservations passed to Linux by the bootloader.

(This should be reworked in future versions of Android; do not
cherry-pick this patch forward.)

Bug: 139653858
Change-Id: I32c0ee70c33c94deff70aa548896caa9978396fb
Signed-off-by: Alistair Delva <adelva@google.com>

parent 882b7ca1

mm/memblock.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -823,6 +823,9 @@ int __init_memblock memblock_free(phys_addr_t base, phys_addr_t size)
		kmemleak_free_part_phys(base, size);
		return memblock_remove_range(&memblock.reserved, base, size);
		}
		#ifdef CONFIG_ARCH_KEEP_MEMBLOCK
		EXPORT_SYMBOL_GPL(memblock_free);
		#endif

		int __init_memblock memblock_reserve(phys_addr_t base, phys_addr_t size)
		{