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Message-ID: <cf646450-c908-519b-f07a-b51c3946ad7f@loongson.cn>
Date:   Mon, 21 Nov 2022 11:02:07 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Akira Yokosawa <akiyks@...il.com>,
        "Paul E. McKenney" <paulmck@...nel.org>
Cc:     linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
        Alan Stern <stern@...land.harvard.edu>,
        Andrea Parri <parri.andrea@...il.com>,
        Will Deacon <will@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Boqun Feng <boqun.feng@...il.com>,
        Nicholas Piggin <npiggin@...il.com>,
        David Howells <dhowells@...hat.com>,
        Jade Alglave <j.alglave@....ac.uk>,
        Luc Maranget <luc.maranget@...ia.fr>,
        Daniel Lustig <dlustig@...dia.com>,
        Joel Fernandes <joel@...lfernandes.org>
Subject: Re: [PATCH] tools/memory-model: Use "grep -E" instead of "egrep"



On 11/20/2022 07:19 PM, Akira Yokosawa wrote:
> On Sat, 19 Nov 2022 10:13:18 +0800, Tiezhu Yang wrote:
>> The latest version of grep claims the egrep is now obsolete so the build
>> now contains warnings that look like:
>> 	egrep: warning: egrep is obsolescent; using grep -E
>> fix this up by moving the related file to use "grep -E" instead.
>>
>>   sed -i "s/egrep/grep -E/g" `grep egrep -rwl tools/memory-model`
>>
>> Here are the steps to install the latest grep:
>>
>>   wget http://ftp.gnu.org/gnu/grep/grep-3.8.tar.gz
>>   tar xf grep-3.8.tar.gz
>>   cd grep-3.8 && ./configure && make
>>   sudo make install
>>   export PATH=/usr/local/bin:$PATH
>>
>> Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
>> ---
>>  tools/memory-model/scripts/checkghlitmus.sh | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/tools/memory-model/scripts/checkghlitmus.sh b/tools/memory-model/scripts/checkghlitmus.sh
>> index 6589fbb..f72816a 100755
>> --- a/tools/memory-model/scripts/checkghlitmus.sh
>> +++ b/tools/memory-model/scripts/checkghlitmus.sh
>> @@ -35,13 +35,13 @@ fi
>>  # Create a list of the C-language litmus tests previously run.
>>  ( cd $LKMM_DESTDIR; find litmus -name '*.litmus.out' -print ) |
>>  	sed -e 's/\.out$//' |
>> -	xargs -r egrep -l '^ \* Result: (Never|Sometimes|Always|DEADLOCK)' |
>> +	xargs -r grep -E -l '^ \* Result: (Never|Sometimes|Always|DEADLOCK)' |
>>  	xargs -r grep -L "^P${LKMM_PROCS}"> $T/list-C-already
>>
>>  # Create a list of C-language litmus tests with "Result:" commands and
>>  # no more than the specified number of processes.
>>  find litmus -name '*.litmus' -exec grep -l -m 1 "^C " {} \; > $T/list-C
>> -xargs < $T/list-C -r egrep -l '^ \* Result: (Never|Sometimes|Always|DEADLOCK)' > $T/list-C-result
>> +xargs < $T/list-C -r grep -E -l '^ \* Result: (Never|Sometimes|Always|DEADLOCK)' > $T/list-C-result
>>  xargs < $T/list-C-result -r grep -L "^P${LKMM_PROCS}" > $T/list-C-result-short
>>
>>  # Form list of tests without corresponding .litmus.out files
>
> Looks good to me.
>
> Reviewed-by: Akira Yokosawa <akiyks@...il.com>
>
> Paul, JFYI, this patch doesn't apply cleanly on -rcu dev due to
> a couple of changes in the lkmm-dev.2022.10.18c branch.
>
>         Thanks, Akira
>

Hi Akira,

Thanks for your review, sorry for that, let me rebase on
linux-rcu.git dev and send v2 later.

Thanks,
Tiezhu

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