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// SPDX-License-Identifier: GPL-2.0-only
#include <linux/types.h>
#include <linux/init.h>
#include <linux/libfdt.h>
/*
* Declare the functions that are exported (but prefixed) here so that LLVM
* does not complain it lacks the 'static' keyword (which, if added, makes
* LLVM complain because the function is actually unused in this file).
*/
u64 get_kaslr_seed(uintptr_t dtb_pa);
u64 get_kaslr_seed(uintptr_t dtb_pa)
{
int node, len;
fdt64_t *prop;
u64 ret;
node = fdt_path_offset((void *)dtb_pa, "/chosen");
if (node < 0)
return 0;
prop = fdt_getprop_w((void *)dtb_pa, node, "kaslr-seed", &len);
if (!prop || len != sizeof(u64))
return 0;
ret = fdt64_to_cpu(*prop);
*prop = 0;
return ret;
}
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