This:

~/work/kernel.org/jarkko/linux-tpmdd master ⇡ 18s
❯ git rebase --exec "git commit --amend --no-edit --trailer 'Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>' --trailer 'Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>'" origin/master
Executing: git commit --amend --no-edit --trailer 'Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>' --trailer 'Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>'
[detached HEAD e6a236dda485] keys: fix out-of-bounds read in keyring_get_key_chunk()
Author: Michael Bommarito <michael.bommarito@gmail.com>
Date: Sun Jul 19 12:15:03 2026 -0400
1 file changed, 5 insertions(+), 4 deletions(-)
Executing: git commit --amend --no-edit --trailer 'Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>' --trailer 'Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>'
[detached HEAD eb2538efe0bf] keys: make keyring key-chunk byte order agree with keyring_diff_objects()
Author: Michael Bommarito <michael.bommarito@gmail.com>
Date: Sun Jul 19 12:15:04 2026 -0400
1 file changed, 3 insertions(+), 2 deletions(-)
Executing: git commit --amend --no-edit --trailer 'Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>' --trailer 'Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>'
[detached HEAD 218b305fedb4] assoc_array: trim the final shortcut word using the current chunk end
Author: Michael Bommarito <michael.bommarito@gmail.com>
Date: Sun Jul 19 12:15:05 2026 -0400
1 file changed, 2 insertions(+), 1 deletion(-)
Successfully rebased and updated refs/heads/master.

@jarkko Ooh, I didn't know the --trailer or --no-edit.
Now, whether I'll remember them or not...

@penguin42 I've used, out of habbit, up until to this day git filter-branch, which is quite a sledge hammer :-)

@jarkko Oh I've not needed anything that hairy; rebase and amend have been enough for me.

@penguin42 historical example :-) https://lore.kernel.org/linux-sgx/20190822012619.jffd4guzjtczmwkr@linux.intel.com/

@jarkko Wow - that's ...hideously powerful :-)