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Date:   Fri, 22 Mar 2019 16:44:05 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     stable@...r.kernel.org,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Brian Norris <briannorris@...omium.org>,
        Guenter Roeck <linux@...ck-us.net>, Genki Sky <sky@...ki.is>
Cc:     Wolfram Sang <wsa@...-dreams.de>, Michal Marek <mmarek@...e.com>,
        Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org
Subject: [BACKPORT 4.4.y 14/25] kbuild: setlocalversion: print error to STDERR

From: Wolfram Sang <wsa@...-dreams.de>

I tried to use 'make O=...' from an unclean source tree. This triggered
the error path of setlocalversion. But by printing to STDOUT, it created
a broken localversion which then caused another (unrelated) error:

"4.7.0-rc2Error: kernelrelease not valid - run make prepare to update it" exceeds 64 characters

After printing to STDERR, the true build error gets displayed later:

  /home/wsa/Kernel/linux is not clean, please run 'make mrproper'
  in the '/home/wsa/Kernel/linux' directory.

Signed-off-by: Wolfram Sang <wsa@...-dreams.de>
Signed-off-by: Michal Marek <mmarek@...e.com>
(cherry picked from commit 78283edf2c01c38eb840a3de5ffd18fe2992ab64)
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 scripts/setlocalversion | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index 63d91e22ed7c..966dd3924ea9 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -143,7 +143,7 @@ fi
 if test -e include/config/auto.conf; then
 	. include/config/auto.conf
 else
-	echo "Error: kernelrelease not valid - run 'make prepare' to update it"
+	echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
 	exit 1
 fi
 
-- 
2.20.0

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