linux-kernel - Re: [PATCH] kbuild: unify cmd_copy and cmd

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Date:   Tue, 8 Feb 2022 13:10:41 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Gabriel Krisman Bertazi <krisman@...labora.com>
Cc:     Nick Desaulniers <ndesaulniers@...gle.com>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Michal Simek <monstr@...str.eu>,
        Rob Herring <robh+dt@...nel.org>,
        DTML <devicetree@...r.kernel.org>,
        Linux FS-devel Mailing List <linux-fsdevel@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kbuild: unify cmd_copy and cmd_shipped

On Wed, Jan 26, 2022 at 11:19 AM Masahiro Yamada <masahiroy@...nel.org> wrote:
>
> On Wed, Jan 26, 2022 at 7:11 AM Gabriel Krisman Bertazi
> <krisman@...labora.com> wrote:
> >
> > Nick Desaulniers <ndesaulniers@...gle.com> writes:
> >
> > > On Mon, Jan 24, 2022 at 10:41 PM Masahiro Yamada <masahiroy@...nel.org> wrote:
> > >>
> > >> cmd_copy and cmd_shipped have similar functionality. The difference is
> > >> that cmd_copy uses 'cp' while cmd_shipped 'cat'.
> > >>
> > >> Unify them into cmd_copy because this macro name is more intuitive.
> > >>
> > >> Going forward, cmd_copy will use 'cat' to avoid the permission issue.
> > >> I also thought of 'cp --no-preserve=mode' but this option is not
> > >> mentioned in the POSIX spec [1], so I am keeping the 'cat' command.
> > >>
> > >> [1]: https://pubs.opengroup.org/onlinepubs/009695299/utilities/cp.html
> > >> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>

Applied to linux-kbuild.



> > >> ---
> > >>
> > >>  arch/microblaze/boot/Makefile     |  2 +-
> > >>  arch/microblaze/boot/dts/Makefile |  2 +-
> > >>  fs/unicode/Makefile               |  2 +-
> > >>  scripts/Makefile.lib              | 12 ++++--------
> > >>  usr/Makefile                      |  4 ++--
> > >>  5 files changed, 9 insertions(+), 13 deletions(-)
> > >>
> > >> diff --git a/arch/microblaze/boot/Makefile b/arch/microblaze/boot/Makefile
> > >> index cff570a71946..2b42c370d574 100644
> > >> --- a/arch/microblaze/boot/Makefile
> > >> +++ b/arch/microblaze/boot/Makefile
> > >> @@ -29,7 +29,7 @@ $(obj)/simpleImage.$(DTB).ub: $(obj)/simpleImage.$(DTB) FORCE
> > >>         $(call if_changed,uimage)
> > >>
> > >>  $(obj)/simpleImage.$(DTB).unstrip: vmlinux FORCE
> > >> -       $(call if_changed,shipped)
> > >> +       $(call if_changed,copy)
> > >>
> > >>  $(obj)/simpleImage.$(DTB).strip: vmlinux FORCE
> > >>         $(call if_changed,strip)
> > >> diff --git a/arch/microblaze/boot/dts/Makefile b/arch/microblaze/boot/dts/Makefile
> > >> index ef00dd30d19a..b84e2cbb20ee 100644
> > >> --- a/arch/microblaze/boot/dts/Makefile
> > >> +++ b/arch/microblaze/boot/dts/Makefile
> > >> @@ -12,7 +12,7 @@ $(obj)/linked_dtb.o: $(obj)/system.dtb
> > >>  # Generate system.dtb from $(DTB).dtb
> > >>  ifneq ($(DTB),system)
> > >>  $(obj)/system.dtb: $(obj)/$(DTB).dtb
> > >> -       $(call if_changed,shipped)
> > >> +       $(call if_changed,copy)
> > >>  endif
> > >>  endif
> > >>
> > >> diff --git a/fs/unicode/Makefile b/fs/unicode/Makefile
> > >> index 2f9d9188852b..74ae80fc3a36 100644
> > >> --- a/fs/unicode/Makefile
> > >> +++ b/fs/unicode/Makefile
> > >> @@ -31,7 +31,7 @@ $(obj)/utf8data.c: $(obj)/mkutf8data $(filter %.txt, $(cmd_utf8data)) FORCE
> > >>  else
> > >>
> > >>  $(obj)/utf8data.c: $(src)/utf8data.c_shipped FORCE
> > >
> > > do we want to retitle the _shipped suffix for this file to _copy now, too?
> > > fs/unicode/Makefile:11
> > > fs/unicode/Makefile:33
> > > fs/unicode/Makefile:34
> >
> > I think _copy doesn't convey the sense that this is distributed with the
> > kernel tree, even though it is also generated from in-tree sources.
> > Even if that is not the original sense of _shipped (is it?), it makes
> > sense to me that way, but _copy doesn't.
> >
> > The patch looks good to me, though.
> >
> > Reviewed-by: Gabriel Krisman Bertazi <krisman@...labora.com>
> >
> >
> > >
>
> I only renamed the action part (cmd_shipped -> cmd_copy)
> because I thought it was clearer.
>
> Actually I do not get the sense of _shipped pretty much, but
> I think we can keep the file suffix part (utf8data.c_shipped) as is.
>
>
> --
> Best Regards
> Masahiro Yamada



-- 
Best Regards
Masahiro Yamada