Re: [PATCH] modprobe.d: load from /usr/lib.

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On Tue, Jan 12, 2021 at 8:06 AM Michal Suchanek <msuchanek@xxxxxxx> wrote:
>
> There is an ongoing effort to limit use of files outside of /usr (or
> $prefix on general). Currently all modprobe.d paths are hardcoded to
> outside of $prefix. Teach kmod to load modprobe.d from $prefix/lib.

/lib came from module-init-tools and we kept it for compatibility. It
became a non-issue when distros
decided to just merge them and do a symlink /lib -> /usr/lib following
https://www.freedesktop.org/wiki/Software/systemd/TheCaseForTheUsrMerge/

what distros didn't do that?

I also fear the solution you want here is not so simple since now the
configs will be added twice
if there is the symlink.  And if we just drop /lib and start using
/usr/lib we break compatibility.

Lucas De Marchi

>
> Cc: Marcus Rückert <mrueckert@xxxxxxxx>
> Cc: Takashi Iwai <tiwai@xxxxxxxx>
> Cc: Dominique Leuenberger <dimstar@xxxxxxxxxxxx>
> Signed-off-by: Michal Suchanek <msuchanek@xxxxxxx>
> ---
>  Makefile.am        | 1 +
>  libkmod/libkmod.c  | 1 +
>  man/modprobe.d.xml | 1 +
>  3 files changed, 3 insertions(+)
>
> diff --git a/Makefile.am b/Makefile.am
> index b29e943a4d29..702a665f0334 100644
> --- a/Makefile.am
> +++ b/Makefile.am
> @@ -19,6 +19,7 @@ AM_CPPFLAGS = \
>         -include $(top_builddir)/config.h \
>         -I$(top_srcdir) \
>         -DSYSCONFDIR=\""$(sysconfdir)"\" \
> +       -DPREFIX=\""$(prefix)"\" \
>         ${zlib_CFLAGS}
>
>  AM_CFLAGS = $(OUR_CFLAGS)
> diff --git a/libkmod/libkmod.c b/libkmod/libkmod.c
> index 43423d63a889..9399c6c902f8 100644
> --- a/libkmod/libkmod.c
> +++ b/libkmod/libkmod.c
> @@ -65,6 +65,7 @@ static const char *default_config_paths[] = {
>         SYSCONFDIR "/modprobe.d",
>         "/run/modprobe.d",
>         "/lib/modprobe.d",
> +       PREFIX "/lib/modprobe.d",
>         NULL
>  };
>
> diff --git a/man/modprobe.d.xml b/man/modprobe.d.xml
> index 211af8488abb..ae5a83986a52 100644
> --- a/man/modprobe.d.xml
> +++ b/man/modprobe.d.xml
> @@ -40,6 +40,7 @@
>    </refnamediv>
>
>    <refsynopsisdiv>
> +    <para><filename>/usr/lib/modprobe.d/*.conf</filename></para>
>      <para><filename>/lib/modprobe.d/*.conf</filename></para>
>      <para><filename>/etc/modprobe.d/*.conf</filename></para>
>      <para><filename>/run/modprobe.d/*.conf</filename></para>
> --
> 2.26.2
>




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