linux-kernel - please revert commit ce8556cca6 "kbuild: verify that $DEPMOD is installed" introduced in v4.18.4.

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Message-Id: <490A46D5-834E-46A9-9106-A31F94344F99@goldelico.com>
Date:   Wed, 22 Aug 2018 20:53:46 +0200
From:   "H. Nikolaus Schaller" <hns@...delico.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     Lucas De Marchi <lucas.demarchi@...fusion.mobi>,
        Lucas De Marchi <lucas.de.marchi@...il.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        Jessica Yu <jeyu@...nel.org>,
        Chih-Wei Huang <cwhuang@...ux.org.tw>,
        stable <stable@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Discussions about the Letux Kernel 
        <letux-kernel@...nphoenux.org>
Subject: please revert commit ce8556cca6 "kbuild: verify that $DEPMOD is installed" introduced in v4.18.4.

This patch requires that /sbin/depmod is installed and installable on
the build host.

But 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 use, for example, a Darwin system to cross compile Linux and I run
depmod -a on the embedded system once, after installing a new Linux
kernel there.

I have no problem with seeing a warning, but aborting the build process
is IMHO a bad idea since the previous behaviour didn't harm many people
as far as I see. Probably 99% of people compiling Linux kernels do that
on Linux and 99% of those have depmod installed for optimal operation of
their build host. So IMHO printing the warning is good enough.

BR and thanks,
Nikolaus Schaller