linux-kernel - Re: [PATCH] modpost: remove leftover symbol prefix handling for module device table

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Date:   Wed, 10 Oct 2018 00:00:22 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Cc:     Rusty Russell <rusty@...tcorp.com.au>,
        Arnd Bergmann <arnd@...db.de>,
        Michal Marek <michal.lkml@...kovi.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] modpost: remove leftover symbol prefix handling for
 module device table

On Fri, Sep 28, 2018 at 3:23 PM Masahiro Yamada
<yamada.masahiro@...ionext.com> wrote:
>
> Blackfin and metag were the only architectures that prefix symbols with
> an underscore.  They were removed by commit 4ba66a976072 ("arch: remove
> blackfin port"), commit bb6fb6dfcc17 ("metag: Remove arch/metag/"),
> respectively.
>
> It is no longer necessary to handle <prefix> part of module device
> table symbols.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
> ---


Applied to linux-kbuild.


>  scripts/mod/file2alias.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
> index 7be4369..ba4ebc4 100644
> --- a/scripts/mod/file2alias.c
> +++ b/scripts/mod/file2alias.c
> @@ -1415,11 +1415,10 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
>         if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT)
>                 return;
>
> -       /* All our symbols are of form <prefix>__mod_<name>__<identifier>_device_table. */
> -       name = strstr(symname, "__mod_");
> -       if (!name)
> +       /* All our symbols are of form __mod_<name>__<identifier>_device_table. */
> +       if (strncmp(symname, "__mod_", strlen("__mod_")))
>                 return;
> -       name += strlen("__mod_");
> +       name = symname + strlen("__mod_");
>         namelen = strlen(name);
>         if (namelen < strlen("_device_table"))
>                 return;
> --
> 2.7.4
>


-- 
Best Regards
Masahiro Yamada