linux-kernel - Re: [PATCH] coccicheck: use $KBUILD

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Date:	Wed, 07 Jul 2010 13:04:36 +0200
From:	Michal Marek <mmarek@...e.cz>
To:	Nicolas Palix <npalix@...u.dk>
Cc:	Kulikov Vasiliy <segooon@...il.com>,
	Kernel Janitors <kernel-janitors@...r.kernel.org>,
	Julia Lawall <julia@...u.dk>,
	Gilles Muller <Gilles.Muller@...6.fr>,
	Sam Ravnborg <sam@...nborg.org>,
	Joerg Roedel <joerg.roedel@....com>, cocci@...u.dk,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] coccicheck: use $KBUILD_EXTMOD when available

On 3.7.2010 21:49, Nicolas Palix wrote:
> Hi,
> 
> On Saturday 03 July 2010 17:20:34 Kulikov Vasiliy wrote:
>> Use $KBUILD_EXTMOD instead of $srctree when the latter is not null
>> to use make M=somedir.
>>
>> Signed-off-by: Kulikov Vasiliy <segooon@...il.com>
>> ---
>>  scripts/coccicheck |    8 +++++++-
>>  1 files changed, 7 insertions(+), 1 deletions(-)
>>
>> diff --git a/scripts/coccicheck b/scripts/coccicheck
>> index b8bcf1f..7d66a55 100755
>> --- a/scripts/coccicheck
>> +++ b/scripts/coccicheck
>> @@ -1,5 +1,11 @@
>>  #!/bin/sh
>>  
>> +if [ -n "$KBUILD_EXTMOD" ]; then
>> +	CHECK_DIR="$KBUILD_EXTMOD"
>> +else
>> +	CHECK_DIR="$srctree"
>> +fi
>> +
>>  SPATCH="`which ${SPATCH:=spatch}`"
>>  
>>  if [ "$C" = "1" -o "$C" = "2" ]; then
>> @@ -64,7 +70,7 @@ coccinelle () {
>>  	echo ' http://coccinelle.lip6.fr/'
>>  	echo ''
>>  
>> -	$SPATCH -D $MODE $FLAGS -sp_file $COCCI $OPT -dir $srctree || exit 1
>> +	$SPATCH -D $MODE $FLAGS -sp_file $COCCI $OPT -dir $CHECK_DIR || exit 1
>>      else
>>  	$SPATCH -D $MODE $FLAGS -sp_file $COCCI $OPT $OPTIONS || exit 1
>>      fi
>>
> 
> In doing so, the output of the patch mode will produce patches relative to $KBUILD_EXTMOD.
> I am not sure of what most of developers want but if the patches must be relative to
> the Linux kernel root, the following patch must be used.

If you are checking your out-of-tree module, then you're probably not
going to send the resulting patch to lkml.

Michal
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