linux-kernel - Re: [PATCH 1/4] modpost: delegate updating namespaces to separate function

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Message-ID: <CAK7LNAQbgtnP_P6aZEO7bHNL+w641ED+19TXCXKkU=dE+gyBGQ@mail.gmail.com>
Date:   Sat, 12 Oct 2019 12:19:58 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Matthias Maennich <maennich@...gle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Cc: Android Kernel" <kernel-team@...roid.com>,
        Jessica Yu <jeyu@...nel.org>,
        Martijn Coenen <maco@...roid.com>,
        Lucas De Marchi <lucas.de.marchi@...il.com>,
        Shaun Ruffell <sruffell@...ffell.net>,
        Will Deacon <will@...nel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        linux-modules <linux-modules@...r.kernel.org>
Subject: Re: [PATCH 1/4] modpost: delegate updating namespaces to separate function

On Sat, Oct 12, 2019 at 12:33 AM Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
> On Thu, Oct 10, 2019 at 04:14:40PM +0100, Matthias Maennich wrote:
> > Let the function 'sym_update_namespace' take care of updating the
> > namespace for a symbol. While this currently only replaces one single
> > location where namespaces are updated, in a following patch, this
> > function will get more call sites.
> >
> > The function signature is intentionally close to sym_update_crc and
> > taking the name by char* seems like unnecessary work as the symbol has
> > to be looked up again. In a later patch of this series, this concern
> > will be addressed.
> >
> > This function ensures that symbol::namespace is either NULL or has a
> > valid non-empty value. Previously, the empty string was considered 'no
> > namespace' as well and this lead to confusion.
> >
> > Signed-off-by: Matthias Maennich <maennich@...gle.com>
> > ---
> >  scripts/mod/modpost.c | 21 ++++++++++++++++++---
> >  1 file changed, 18 insertions(+), 3 deletions(-)
> >
> > diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
> > index 4d2cdb4d71e3..9f5dcdff4d2f 100644
> > --- a/scripts/mod/modpost.c
> > +++ b/scripts/mod/modpost.c
> > @@ -362,6 +362,22 @@ static char *sym_extract_namespace(const char **symname)
> >       return namespace;
> >  }
> >
> > +static void sym_update_namespace(const char *symname, const char *namespace)
> > +{
> > +       struct symbol *s = find_symbol(symname);
> > +       /* That symbol should have been created earlier and thus this is
> > +        * actually an assertion. */
>
> Do we care about checkpatch issues in tools?

Personally, I do.


>
> If so, you need a blank line before the comment :)

One more minor issue, the block comment style is not correct.
Please do like this:

/*
 * Blah Blah ...
 * Blah Blha ...
 */

With those addressed,

Reviewed-by: Masahiro Yamada <yamada.masahiro@...ionext.com>



>
> Anyway, not a big deal
>
> Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>





-- 
Best Regards
Masahiro Yamada