linux-kernel - Re: [PATCH v3] depmod: Handle installing modules under a prefix

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Date:   Fri, 14 Jul 2023 15:38:18 +0200 (CEST)
From:   Jan Engelhardt <jengelh@...i.de>
To:     Michal Suchanek <msuchanek@...e.de>
cc:     linux-modules@...r.kernel.org, Takashi Iwai <tiwai@...e.com>,
        Lucas De Marchi <lucas.de.marchi@...il.com>,
        Michal Koutný <mkoutny@...e.com>,
        Jiri Slaby <jslaby@...e.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nicolas Schier <nicolas@...sle.eu>,
        linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] depmod: Handle installing modules under a prefix


On Friday 2023-07-14 14:21, Michal Suchanek wrote:

>Some distributions aim at not shipping any files in / outside of usr.
>
>The path under which kernel modules are installed is hardcoded to /lib
>which conflicts with this goal.
>
>+MODLIB	= $(INSTALL_MOD_PATH)$(KERNEL_MODULE_PREFIX)/lib/modules/$(KERNELRELEASE)

Ok, so if the problem statement is that hardcoded paths are bad, then why
continue to hardcode the "/lib/modules" fragment? Just make it so that
KERNEL_MODULE_PREFIX can be set to the exact string "/usr/lib/modules" and not
just "/usr".