libfdt: Add and use a node iteration helper function.

This patch adds an fdt_next_node() function which can be used to
iterate through nodes of the tree while keeping track of depth.  This
function is used to simplify the iteration code in a lot of other
functions, and is also exported for use by library users.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
David Gibson 2008-02-12 11:58:31 +11:00 committed by Gerald Van Baren
parent 9eaeb07a71
commit ae0b5908de
3 changed files with 131 additions and 174 deletions

View file

@ -130,6 +130,12 @@ static inline void *fdt_offset_ptr_w(void *fdt, int offset, int checklen)
uint32_t fdt_next_tag(const void *fdt, int offset, int *nextoffset);
/**********************************************************************/
/* Traversal functions */
/**********************************************************************/
int fdt_next_node(const void *fdt, int offset, int *depth);
/**********************************************************************/
/* General functions */
/**********************************************************************/