77 const void *fdt_offset_ptr(const void *fdt, int offset, unsigned int len)  in fdt_offset_ptr()  argument
82 		if (((offset + len) < offset)  in fdt_offset_ptr()
83 		    || ((offset + len) > fdt_size_dt_struct(fdt)))  in fdt_offset_ptr()
86 	p = _fdt_offset_ptr(fdt, offset);  in fdt_offset_ptr()
97 	int offset = startoffset;  in fdt_next_tag()  local
101 	tagp = fdt_offset_ptr(fdt, offset, FDT_TAGSIZE);  in fdt_next_tag()
105 	offset += FDT_TAGSIZE;  in fdt_next_tag()
112 			p = fdt_offset_ptr(fdt, offset++, 1);  in fdt_next_tag()
119 		lenp = fdt_offset_ptr(fdt, offset, sizeof(*lenp));  in fdt_next_tag()
123 		offset += sizeof(struct fdt_property) - FDT_TAGSIZE  in fdt_next_tag()
136 	if (!fdt_offset_ptr(fdt, startoffset, offset - startoffset))  in fdt_next_tag()
139 	*nextoffset = FDT_TAGALIGN(offset);  in fdt_next_tag()
143 int _fdt_check_node_offset(const void *fdt, int offset)  in _fdt_check_node_offset()  argument
145 	if ((offset < 0) || (offset % FDT_TAGSIZE)  in _fdt_check_node_offset()
146 	    || (fdt_next_tag(fdt, offset, &offset) != FDT_BEGIN_NODE))  in _fdt_check_node_offset()
149 	return offset;  in _fdt_check_node_offset()
152 int _fdt_check_prop_offset(const void *fdt, int offset)  in _fdt_check_prop_offset()  argument
154 	if ((offset < 0) || (offset % FDT_TAGSIZE)  in _fdt_check_prop_offset()
155 	    || (fdt_next_tag(fdt, offset, &offset) != FDT_PROP))  in _fdt_check_prop_offset()
158 	return offset;  in _fdt_check_prop_offset()
161 int fdt_next_node(const void *fdt, int offset, int *depth)  in fdt_next_node()  argument
166 	if (offset >= 0)  in fdt_next_node()
167 		if ((nextoffset = _fdt_check_node_offset(fdt, offset)) < 0)  in fdt_next_node()
171 		offset = nextoffset;  in fdt_next_node()
172 		tag = fdt_next_tag(fdt, offset, &nextoffset);  in fdt_next_node()
198 	return offset;  in fdt_next_node()
201 int fdt_first_subnode(const void *fdt, int offset)  in fdt_first_subnode()  argument
205 	offset = fdt_next_node(fdt, offset, &depth);  in fdt_first_subnode()
206 	if (offset < 0 || depth != 1)  in fdt_first_subnode()
209 	return offset;  in fdt_first_subnode()
212 int fdt_next_subnode(const void *fdt, int offset)  in fdt_next_subnode()  argument
221 		offset = fdt_next_node(fdt, offset, &depth);  in fdt_next_subnode()
222 		if (offset < 0 || depth < 1)  in fdt_next_subnode()
226 	return offset;  in fdt_next_subnode()