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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Randy Dunlap <rdunlap@infradead.org>,
        "H. Nikolaus Schaller" <hns@goldelico.com>,
        Lucas De Marchi <lucas.demarchi@profusion.mobi>,
        Lucas De Marchi <lucas.de.marchi@gmail.com>,
        Michal Marek <michal.lkml@markovi.net>,
        Jessica Yu <jeyu@kernel.org>,
        Chih-Wei Huang <cwhuang@linux.org.tw>,
        Masahiro Yamada <yamada.masahiro@socionext.com>
Subject: [PATCH 4.18 193/197] kbuild: make missing $DEPMOD a Warning instead of an Error
Date:   Thu, 13 Sep 2018 15:32:22 +0200
Message-Id: <20180913131849.279884033@linuxfoundation.org>
In-Reply-To: <20180913131841.568116777@linuxfoundation.org>
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4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Randy Dunlap <rdunlap@infradead.org>

commit 914b087ff9e0e9a399a4927fa30793064afc0178 upstream.

When $DEPMOD is not found, only print a warning instead of exiting
with an error message and error status:

Warning: 'make modules_install' requires /sbin/depmod. Please install it.
This is probably in the kmod package.

Change the Error to a Warning because "not all build hosts for cross
compiling Linux are Linux systems and are able to provide a working
port of depmod, especially at the file patch /sbin/depmod."

I.e., "make modules_install" may be used to copy/install the
loadable modules files to a target directory on a build system and
then transferred to an embedded device where /sbin/depmod is run
instead of it being run on the build system.

Fixes: 934193a654c1 ("kbuild: verify that $DEPMOD is installed")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: H. Nikolaus Schaller <hns@goldelico.com>
Cc: stable@vger.kernel.org
Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Cc: Lucas De Marchi <lucas.de.marchi@gmail.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Chih-Wei Huang <cwhuang@linux.org.tw>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 scripts/depmod.sh |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/scripts/depmod.sh
+++ b/scripts/depmod.sh
@@ -15,9 +15,9 @@ if ! test -r System.map ; then
 fi
 
 if [ -z $(command -v $DEPMOD) ]; then
-	echo "'make modules_install' requires $DEPMOD. Please install it." >&2
+	echo "Warning: 'make modules_install' requires $DEPMOD. Please install it." >&2
 	echo "This is probably in the kmod package." >&2
-	exit 1
+	exit 0
 fi
 
 # older versions of depmod require the version string to start with three