Re: [PATCH] ext4: fix rec_len verify error

[Greg KH <gregkh@linuxfoundation.org>]

On Sat, Sep 23, 2023 at 10:47:29AM -0400, Theodore Ts'o wrote:
> On Sat, Sep 23, 2023 at 05:41:19PM +0800, Stephen Zhang wrote:
> > Apologies for this confusion. It appears that the '--subject-prefix' option
> > of the 'git send-email' command does not work with the local patch file.
> 
> Stephen,
> 
> The --subject-prefix option applies to "git format-patch" when the
> local patch file is generated, as opposed to "git send-email".  So my
> general workflow is to run "rm -rf /tmp/p ; git format-patch -o /tmp/p
> ..."  and then examine the files in /tmp/p, and then if they look
> good, run "git send-email /tmp/p/*".
> 
> I suspect it will be easier for Greg if you were to simply regenerate
> the patches with the proper subject prefix, and then resend them,
> since he has automation tools that can handle parsing the subject
> line, which scripts can do much more easily than to disentangling the
> "In-Reply-To" header to identify e-mail chains, and then parsing
> human/natural language to figure out which git tree the patches should
> be applied to.  :-)

Just a hint, I can usually NOT see the In-Reply-To headers at all, as
the email it was in response to is long gone from my system.

Which is why, the description of how to fix up a patch for the stable
tree that has failed to apply there, tells you how to do this in a way
that will show the proper version number.

If only anyone would actually read the emails we sent with the helpful
text, here's one example for a DRM patch that failed to apply:

	To reproduce the conflict and resubmit, you may use the following commands:

	git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y
	git checkout FETCH_HEAD
	git cherry-pick -x ec5fa9fcdeca69edf7dab5ca3b2e0ceb1c08fe9a
	# <resolve conflicts, build, test, etc.>
	git commit -s
	git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2023092029-banter-truth-cf72@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..

thanks,

greg k-h