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36 lines
1,014 B
C
36 lines
1,014 B
C
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/* SPDX-License-Identifier: GPL-2.0+ BSD-2-Clause */
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#include "fdt_host.h"
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#include "../../scripts/dtc/libfdt/fdt_rw.c"
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int fdt_remove_unused_strings(const void *old, void *new)
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{
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const struct fdt_property *old_prop;
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struct fdt_property *new_prop;
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int size = fdt_totalsize(old);
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int next_offset, offset;
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const char *str;
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int ret;
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int tag = FDT_PROP;
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/* Make a copy and remove the strings */
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memcpy(new, old, size);
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fdt_set_size_dt_strings(new, 0);
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/* Add every property name back into the new string table */
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for (offset = 0; tag != FDT_END; offset = next_offset) {
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tag = fdt_next_tag(old, offset, &next_offset);
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if (tag != FDT_PROP)
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continue;
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old_prop = fdt_get_property_by_offset(old, offset, NULL);
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new_prop = (struct fdt_property *)(unsigned long)
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fdt_get_property_by_offset(new, offset, NULL);
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str = fdt_string(old, fdt32_to_cpu(old_prop->nameoff));
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ret = _fdt_find_add_string(new, str);
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if (ret < 0)
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return ret;
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new_prop->nameoff = cpu_to_fdt32(ret);
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}
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return 0;
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}
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