dtx_diff suggests to use <(...) syntax to pipe two inputs into it, but
this has never worked: The /proc/self/fds/... paths passed by the shell
will fail the `[ -f "${dtx}" ] && [ -r "${dtx}" ]` check in compile_to_dts,
but even with this check removed, the function cannot work: hexdump will
eat up the DTB magic, making the subsequent dtc call fail, as a pipe
cannot be rewound.
Change the example to use `diff -u` directly.
Fixes: 10eadc253ddf ("dtc: create tool to diff device trees")
Signed-off-by: Matthias Schiffer <matthias.schiffer@xxxxxxxxxxxxxxx>
---
scripts/dtc/dtx_diff | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/dtc/dtx_diff b/scripts/dtc/dtx_diff
index d3422ee15e30..f97eb83420a4 100755
--- a/scripts/dtc/dtx_diff
+++ b/scripts/dtc/dtx_diff
@@ -62,7 +62,7 @@ Otherwise DTx is treated as a dts source file (aka .dts).
may not work since \${ARCH} is part of the include path. Two possible
workarounds:
- `basename $0` \\
+ diff -u \\
<(ARCH=arch_of_dtx_1 `basename $0` DTx_1) \\
<(ARCH=arch_of_dtx_2 `basename $0` DTx_2)
--
2.25.1
