linux-kernel - Re: [PATCH 5.15 00/37] 5.15.96-rc2 review

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Date:   Thu, 23 Feb 2023 10:03:43 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, patches@...ts.linux.dev,
        linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
        shuah@...nel.org, patches@...nelci.org,
        lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com,
        f.fainelli@...il.com, sudipm.mukherjee@...il.com,
        srw@...dewatkins.net, rwarsow@....de
Subject: Re: [PATCH 5.15 00/37] 5.15.96-rc2 review

On Thu, Feb 23, 2023 at 9:31 AM Guenter Roeck <linux@...ck-us.net> wrote:
>
> This isn't the first time this happens. I seem to recall that you mentioned
> some time ago that whatever you use to apply patches (quilt ?) doesn't
> handle executable permission bits correctly.

Note that even though git itself does handle these things right, we've
also always said that if some old fogey wants to use tar-balls and
patches, that's supposed to still work.

I guess the same "old fogey" comment then covers quilt too.

End result: we should try to generally not execute our scripts
directly, but to explicitly state which interpreter it should use,
rather than then depend on the #! in the script itself to do it.

In fact, for shell scripting in particular, we go further than that,
and use $(CONFIG_SHELL)

Of course, in this case, it's actually using the Makefile '$(shell
..)' format, so I guess it looks a bit odd to write it as

   $(shell $(CONFIG_SHELL) script..)

but I do think we should do it.

Now, independently of that I also think quilt should probably just
learn the git world order about file modes, because let's face it, git
_has_ taken over the world. Mwhahahhahahaahaaa!

              Linus