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libfdt: Add and use a node iteration helper function.

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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 Jon Loeliger
parent 202863e4dd
commit fc9769ac2b
3 changed files with 131 additions and 174 deletions
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6
libfdt/libfdt.h
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@@ -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 */
/**********************************************************************/