58 int fdt_check_header(const void *fdt)  in fdt_check_header()  argument
60 	if (fdt_magic(fdt) == FDT_MAGIC) {  in fdt_check_header()
62 		if (fdt_version(fdt) < FDT_FIRST_SUPPORTED_VERSION)  in fdt_check_header()
64 		if (fdt_last_comp_version(fdt) > FDT_LAST_SUPPORTED_VERSION)  in fdt_check_header()
66 	} else if (fdt_magic(fdt) == FDT_SW_MAGIC) {  in fdt_check_header()
68 		if (fdt_size_dt_struct(fdt) == 0)  in fdt_check_header()
77 const void *fdt_offset_ptr(const void *fdt, int offset, unsigned int len)  in fdt_offset_ptr()  argument
79 	unsigned absoffset = offset + fdt_off_dt_struct(fdt);  in fdt_offset_ptr()
83 	    || (absoffset + len) > fdt_totalsize(fdt))  in fdt_offset_ptr()
86 	if (fdt_version(fdt) >= 0x11)  in fdt_offset_ptr()
88 		    || ((offset + len) > fdt_size_dt_struct(fdt)))  in fdt_offset_ptr()
91 	return fdt_offset_ptr_(fdt, offset);  in fdt_offset_ptr()
94 uint32_t fdt_next_tag(const void *fdt, int startoffset, int *nextoffset)  in fdt_next_tag()  argument
102 	tagp = fdt_offset_ptr(fdt, offset, FDT_TAGSIZE);  in fdt_next_tag()
113 			p = fdt_offset_ptr(fdt, offset++, 1);  in fdt_next_tag()
120 		lenp = fdt_offset_ptr(fdt, offset, sizeof(*lenp));  in fdt_next_tag()
126 		if (fdt_version(fdt) < 0x10 && fdt32_to_cpu(*lenp) >= 8 &&  in fdt_next_tag()
140 	if (!fdt_offset_ptr(fdt, startoffset, offset - startoffset))  in fdt_next_tag()
147 int fdt_check_node_offset_(const void *fdt, int offset)  in fdt_check_node_offset_()  argument
150 	    || (fdt_next_tag(fdt, offset, &offset) != FDT_BEGIN_NODE))  in fdt_check_node_offset_()
156 int fdt_check_prop_offset_(const void *fdt, int offset)  in fdt_check_prop_offset_()  argument
159 	    || (fdt_next_tag(fdt, offset, &offset) != FDT_PROP))  in fdt_check_prop_offset_()
165 int fdt_next_node(const void *fdt, int offset, int *depth)  in fdt_next_node()  argument
171 		if ((nextoffset = fdt_check_node_offset_(fdt, offset)) < 0)  in fdt_next_node()
176 		tag = fdt_next_tag(fdt, offset, &nextoffset);  in fdt_next_node()
205 int fdt_first_subnode(const void *fdt, int offset)  in fdt_first_subnode()  argument
209 	offset = fdt_next_node(fdt, offset, &depth);  in fdt_first_subnode()
216 int fdt_next_subnode(const void *fdt, int offset)  in fdt_next_subnode()  argument
225 		offset = fdt_next_node(fdt, offset, &depth);  in fdt_next_subnode()
245 int fdt_move(const void *fdt, void *buf, int bufsize)  in fdt_move()  argument
247 	FDT_CHECK_HEADER(fdt);  in fdt_move()
249 	if (fdt_totalsize(fdt) > bufsize)  in fdt_move()
252 	memmove(buf, fdt, fdt_totalsize(fdt));  in fdt_move()