linux-kernel - Re: [PATCH] coccinelle: grep Options and Requires fields more precisely

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Date:   Tue, 7 Nov 2017 09:27:23 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     "Nicolas Palix (LIG)" <Nicolas.Palix@...g.fr>
Cc:     Julia Lawall <julia.lawall@...6.fr>, cocci@...teme.lip6.fr,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Gilles Muller <Gilles.Muller@...6.fr>,
        Michal Marek <michal.lkml@...kovi.net>
Subject: Re: [PATCH] coccinelle: grep Options and Requires fields more precisely

2017-10-26 16:26 GMT+09:00 Nicolas Palix (LIG) <Nicolas.Palix@...g.fr>:
> Le 26/10/17 à 06:59, Julia Lawall a écrit :
>>
>>
>>
>> On Thu, 26 Oct 2017, Masahiro Yamada wrote:
>>
>>> Currently, the required version for badzero.cocci is picked up from
>>> its "Comments:" line since it contains the word "Requires".
>>>
>>> Surprisingly, ld-version.sh can extract the version number from the
>>> string "Requires Coccinelle version 1.0.0-rc20 or later", but this
>>> expectation is fragile.  Fix the .cocci file.  I removed "-rc20"
>>> because ld-version.sh cannot handle it.
>>
>>
>> OK.
>>
>>> Make the coccicheck script to see exact patterns for "Options:" and
>>> "Requires:" in order to avoid accidental matching to what just happens
>>> to appear in comment lines.
>>>
>>> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
>>
>>
>> Thanks for checking on this!
>>
>> Acked-by: Julia Lawall <julia.lawall@...6.fr>
>
> Acked-by: Nicolas Palix <nicolas.palix@...g.fr>
>
>>
>>> ---
>>>
>>>   scripts/coccicheck                    | 4 ++--
>>>   scripts/coccinelle/null/badzero.cocci | 2 +-
>>>   2 files changed, 3 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/scripts/coccicheck b/scripts/coccicheck
>>> index 3e21a1b..1bfa2d2 100755
>>> --- a/scripts/coccicheck
>>> +++ b/scripts/coccicheck
>>> @@ -168,8 +168,8 @@ OPTIONS="$OPTIONS $SPFLAGS"
>>>   coccinelle () {
>>>       COCCI="$1"
>>>
>>> -    OPT=`grep "Option" $COCCI | cut -d':' -f2`
>>> -    REQ=`grep "Requires" $COCCI | cut -d':' -f2 | sed "s| ||"`
>>> +    OPT=`grep "Options:" $COCCI | cut -d':' -f2`
>>> +    REQ=`grep "Requires:" $COCCI | cut -d':' -f2 | sed "s| ||"`
>>>       REQ_NUM=$(echo $REQ | ${DIR}/scripts/ld-version.sh)
>>>       if [ "$REQ_NUM" != "0" ] ; then
>>>             if [ "$SPATCH_VERSION_NUM" -lt "$REQ_NUM" ] ; then
>>> diff --git a/scripts/coccinelle/null/badzero.cocci
>>> b/scripts/coccinelle/null/badzero.cocci
>>> index 5551da2..f597c80 100644
>>> --- a/scripts/coccinelle/null/badzero.cocci
>>> +++ b/scripts/coccinelle/null/badzero.cocci
>>> @@ -10,7 +10,7 @@
>>>   // Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.  GPLv2.
>>>   // Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.  GPLv2.
>>>   // URL: http://coccinelle.lip6.fr/
>>> -// Comments: Requires Coccinelle version 1.0.0-rc20 or later
>>> +// Requires: 1.0.0
>>>   // Options:
>>>
>>>   virtual patch
>>> --
>>> 2.7.4
>>>
>>>
>
>
> --
> Nicolas Palix
> http://lig-membres.imag.fr/palix/
>


Applied to linux-kbuild/misc.


-- 
Best Regards
Masahiro Yamada