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authorSimon Glass <sjg@chromium.org>2013-05-07 06:11:50 +0000
committerTom Rini <trini@ti.com>2013-05-14 15:37:25 -0400
commit88f95bbadda89bfaf6a8e817bb66fd114afc1caf (patch)
tree17a3c26a6ef0df9a2469c55848a3949bebd3b3d8 /include/image.h
parent816cb037adf94ead77593812ccd3244d506175fa (diff)
libfdt: Add fdt_next_subnode() to permit easy subnode iteration
Iterating through subnodes with libfdt is a little painful to write as we need something like this: for (depth = 0, count = 0, offset = fdt_next_node(fdt, parent_offset, &depth); (offset >= 0) && (depth > 0); offset = fdt_next_node(fdt, offset, &depth)) { if (depth == 1) { /* code body */ } } Using fdt_next_subnode() we can instead write this, which is shorter and easier to get right: for (offset = fdt_first_subnode(fdt, parent_offset); offset >= 0; offset = fdt_next_subnode(fdt, offset)) { /* code body */ } Also, it doesn't require two levels of indentation for the loop body. Signed-off-by: Simon Glass <sjg@chromium.org> (Cherry-picked from dtc commit 4e76ec79) Acked-by: Gerald Van Baren <vanbaren@cideas.com>
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