From: Simon Glass <s...@chromium.org>

Add a way to remove this check and the reordering code, which is
unnecessary if the dtb is known to be correctly ordered.

Signed-off-by: Simon Glass <s...@chromium.org>
Reviewed-by: David Gibson <da...@gibson.dropbear.id.au>
Message-Id: <20200220214557.176528-8-...@chromium.org>
Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
---
 cpukit/dtc/libfdt/fdt_rw.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cpukit/dtc/libfdt/fdt_rw.c b/cpukit/dtc/libfdt/fdt_rw.c
index fe13671eb6..13854253ff 100644
--- a/cpukit/dtc/libfdt/fdt_rw.c
+++ b/cpukit/dtc/libfdt/fdt_rw.c
@@ -435,7 +435,8 @@ int fdt_open_into(const void *fdt, void *buf, int bufsize)
                        return struct_size;
        }
 
-       if (!fdt_blocks_misordered_(fdt, mem_rsv_size, struct_size)) {
+       if (can_assume(LIBFDT_ORDER) |
+           !fdt_blocks_misordered_(fdt, mem_rsv_size, struct_size)) {
                /* no further work necessary */
                err = fdt_move(fdt, buf, bufsize);
                if (err)
-- 
2.16.4

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