The logic to insert an implicit command has always been a bit broken but it was masked by another bug fixed in the patch ("patman: Don't look at sys.argv when parsing settings"). Specifically, imagine that you're just calling patman like this:
patman -c1 After the parse_known_args() command then the "-c1" will have been parsed and we'll have no command. The "rest" variable will be an empty list. Going into the logic you can see that nargs = 0. The implicit insertion of send ideally would create an argument list of: ['-c1', 'send'] ...but it doesn't because argv[:-0] is the same as argv[:0] and that's an empty list. Let's fix this little glitch. Signed-off-by: Douglas Anderson <diand...@chromium.org> Tested-by: Brian Norris <briannor...@chromium.org> Reviewed-by: Brian Norris <briannor...@chromium.org> Reviewed-by: Simon Glass <s...@chromium.org> --- (no changes since v1) tools/patman/main.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) Applied to u-boot-dm, thanks!