From: Matthias Schiffer matthias.schiffer@ew.tq-group.com
commit d8adf5b92a9d2205620874d498c39923ecea8749 upstream.
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.
Simply remove this broken example, as there is already an alternative one that works fine.
Fixes: 10eadc253ddf ("dtc: create tool to diff device trees") Signed-off-by: Matthias Schiffer matthias.schiffer@ew.tq-group.com Reviewed-by: Frank Rowand frank.rowand@sony.com Signed-off-by: Rob Herring robh@kernel.org Link: https://lore.kernel.org/r/20220113081918.10387-1-matthias.schiffer@ew.tq-gro... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- scripts/dtc/dtx_diff | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-)
--- a/scripts/dtc/dtx_diff +++ b/scripts/dtc/dtx_diff @@ -56,12 +56,8 @@ Otherwise DTx is treated as a dts source or '/include/' to be processed.
If DTx_1 and DTx_2 are in different architectures, then this script - may not work since ${ARCH} is part of the include path. Two possible - workarounds: - - `basename $0` \ - <(ARCH=arch_of_dtx_1 `basename $0` DTx_1) \ - <(ARCH=arch_of_dtx_2 `basename $0` DTx_2) + may not work since ${ARCH} is part of the include path. The following + workaround can be used:
`basename $0` ARCH=arch_of_dtx_1 DTx_1 >tmp_dtx_1.dts `basename $0` ARCH=arch_of_dtx_2 DTx_2 >tmp_dtx_2.dts