linux-kernel - [PATCH] selftests: powerpc: Use "grep -E" instead of "egrep"

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Message-Id: <1669862997-31335-1-git-send-email-yangtiezhu@loongson.cn>
Date:   Thu,  1 Dec 2022 10:49:57 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Shuah Khan <shuah@...nel.org>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] selftests: powerpc: Use "grep -E" instead of "egrep"

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 using "grep -E" instead.

  sed -i "s/egrep/grep -E/g" `grep egrep -rwl tools/testing/selftests/powerpc`

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>
---

As Shuah suggested, this patch should go through powerpc/linux.git

 tools/testing/selftests/powerpc/scripts/hmi.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/powerpc/scripts/hmi.sh b/tools/testing/selftests/powerpc/scripts/hmi.sh
index dcdb392..bcc7b6b 100755
--- a/tools/testing/selftests/powerpc/scripts/hmi.sh
+++ b/tools/testing/selftests/powerpc/scripts/hmi.sh
@@ -36,7 +36,7 @@ trap "ppc64_cpu --smt-snooze-delay=100" 0 1
 
 # for each chip+core combination
 # todo - less fragile parsing
-egrep -o 'OCC: Chip [0-9a-f]+ Core [0-9a-f]' < /sys/firmware/opal/msglog |
+grep -E -o 'OCC: Chip [0-9a-f]+ Core [0-9a-f]' < /sys/firmware/opal/msglog |
 while read chipcore; do
 	chip=$(echo "$chipcore"|awk '{print $3}')
 	core=$(echo "$chipcore"|awk '{print $5}')
-- 
2.1.0