// SPDX-License-Identifier: GPL-2.0#include <linux/types.h>#include <linux/init.h>#include <linux/slab.h>#include <linux/memblock.h>#include <linux/string.h>#include <asm/setup.h>  void * __ref zalloc_maybe_bootmem(size_t size, gfp_t mask){	void *p; 	if (slab_is_available())		p = kzalloc(size, mask);	else {		p = memblock_alloc(size, SMP_CACHE_BYTES);		if (!p)			panic("%s: Failed to allocate %zu bytes\n", __func__,			      size);	}	return p;}