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/* SPDX-License-Identifier: GPL-2.0+ BSD-2-Clause */
#include "fdt_host.h"
#include "../../scripts/dtc/libfdt/fdt_rw.c"
int fdt_remove_unused_strings(const void *old, void *new)
{
const struct fdt_property *old_prop;
struct fdt_property *new_prop;
int size = fdt_totalsize(old);
int next_offset, offset;
const char *str;
int ret;
int tag = FDT_PROP;
int allocated;
/* Make a copy and remove the strings */
memcpy(new, old, size);
fdt_set_size_dt_strings(new, 0);
/* Add every property name back into the new string table */
for (offset = 0; tag != FDT_END; offset = next_offset) {
tag = fdt_next_tag(old, offset, &next_offset);
if (tag != FDT_PROP)
continue;
old_prop = fdt_get_property_by_offset(old, offset, NULL);
new_prop = (struct fdt_property *)(unsigned long)
fdt_get_property_by_offset(new, offset, NULL);
str = fdt_string(old, fdt32_to_cpu(old_prop->nameoff));
ret = fdt_find_add_string_(new, str, &allocated);
if (ret < 0)
return ret;
new_prop->nameoff = cpu_to_fdt32(ret);
}
return 0;
}
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