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

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Message-Id: <1668764429-11540-1-git-send-email-yangtiezhu@loongson.cn>
Date:   Fri, 18 Nov 2022 17:40:29 +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>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH] 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 up by moving the related file to use "grep -E" instead.

  sed -i "s/egrep/grep -E/g" `grep egrep -rwl arch/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>
---
 arch/powerpc/boot/wrapper | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 5bdd4dd..a86ae11 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -581,7 +581,7 @@ ps3)
     # reached, then enter the system reset vector of the partially decompressed
     # image.  No warning is issued.
     rm -f "$odir"/{otheros,otheros-too-big}.bld
-    size=$(${CROSS}nm --no-sort --radix=d "$ofile" | egrep ' _end$' | cut -d' ' -f1)
+    size=$(${CROSS}nm --no-sort --radix=d "$ofile" | grep -E ' _end$' | cut -d' ' -f1)
     bld="otheros.bld"
     if [ $size -gt $((0x1000000)) ]; then
         bld="otheros-too-big.bld"
-- 
2.1.0