On architectures that support the preservation of memblock metadata after __init, allow drivers to call memblock_free() to free a reservation configured in dts. This is a hack to support the freeing of bootsplash reservations passed to Linux by the bootloader. Signed-off-by: Guanshun Liu <lgs156412@xxxxxxxxx> --- mm/memblock.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/memblock.c b/mm/memblock.c index 6d18485571b4..20e7f81fc076 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -848,6 +848,9 @@ void __init_memblock memblock_free(void *ptr, size_t size) if (ptr) memblock_phys_free(__pa(ptr), size); } +#ifdef CONFIG_ARCH_KEEP_MEMBLOCK +EXPORT_SYMBOL_GPL(memblock_free); +#endif /** * memblock_phys_free - free boot memory block -- 2.25.1
