linux-kernel - Re: [PATCH 2/2] doc: Add tar requirement to changes.rst

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Message-ID: <CAK7LNASmJrWnV3+z-RE4W57M9tVrd6EwsyA2T07CF8jT3ePS5w@mail.gmail.com>
Date:   Sun, 28 May 2023 16:15:02 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Nicolas Schier <nicolas@...sle.eu>
Cc:     linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jonathan Corbet <corbet@....net>, linux-doc@...r.kernel.org
Subject: Re: [PATCH 2/2] doc: Add tar requirement to changes.rst

On Thu, May 25, 2023 at 5:13 AM Nicolas Schier <nicolas@...sle.eu> wrote:
>
> On Sun 21 May 2023 22:23:36 GMT, Masahiro Yamada wrote:
> > tar is used to build the kernel with CONFIG_IKHEADERS.
> >
> > GNU tar 1.28 or later is required.
> >
> > Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
> > ---
> >
> >  Documentation/process/changes.rst | 7 +++++++
> >  1 file changed, 7 insertions(+)
> >
> > diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
> > index a9ef00509c9b..3c0074214d75 100644
> > --- a/Documentation/process/changes.rst
> > +++ b/Documentation/process/changes.rst
> > @@ -60,6 +60,7 @@ openssl & libcrypto    1.0.0            openssl version
> >  bc                     1.06.95          bc --version
> >  Sphinx\ [#f1]_         1.7              sphinx-build --version
> >  cpio                   any              cpio --version
> > +GNU tar                1.28             tar --version
> >  gtags (optional)       6.6.5            gtags --version
> >  ====================== ===============  ========================================
> >
> > @@ -175,6 +176,12 @@ You will need openssl to build kernels 3.7 and higher if module signing is
> >  enabled.  You will also need openssl development packages to build kernels 4.3
> >  and higher.
> >
> > +Tar
> > +---
> > +
> > +GNU tar is needed if you want to enable access to the kernel headers via sysfs
> > +(CONFIG_IKHEADERS).
>
> CONFIG_IKHEADERS does also require 'xz' (cp. kernel/gen_kheaders.sh),
> should it be mentioned in changes.rst as well?


It is true, bue 'xz' is required in other situations too.

For example,
CONFIG_KERNEL_XZ
CONFIG_MODULE_COMPRESS_XZ
CONFIG_INITRAMFS_COMPRESSION_XZ


If we document the requirement for 'xz',
we need to document the requirement for
'gzip', 'zstd', 'lzma', etc. for the same reason.

So, I want to go only with 'tar' in this series.






> Reviewed-by: Nicolas Schier <nicolas@...sle.eu>
>
>
> > +
> >  gtags / GNU GLOBAL (optional)
> >  -----------------------------
> >
> > --
> > 2.39.2
>
> --
> Nicolas Schier
>
> epost|xmpp: nicolas@...sle.eu          irc://oftc.net/nsc
> ↳ gpg: 18ed 52db e34f 860e e9fb  c82b 7d97 0932 55a0 ce7f
>      -- frykten for herren er opphav til kunnskap --



-- 
Best Regards
Masahiro Yamada