linux-kernel - Re: [PATCH] kbuild: allow modules to link *.a archives

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Message-ID: <20200108154406.GA21695@infradead.org>
Date:   Wed, 8 Jan 2020 07:44:06 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     linux-kbuild@...r.kernel.org,
        Fumiya Shigemitsu <shfy1014@...il.com>,
        Yongxin Liu <yongxin.liu@...driver.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH] kbuild: allow modules to link *.a archives

On Mon, Jan 06, 2020 at 12:23:24PM +0900, Masahiro Yamada wrote:
> Since commit 69ea912fda74 ("kbuild: remove unneeded link_multi_deps"),
> modules cannot link *.a archives.
> 
> I do not see such a usecase in the upstream code, but multiple people
> reported this issue, so it seems to be a desired feature for external
> modules.

Kernel policy is to not keep around infrastructure not used upstream.
And linking archives in the kernel doesn't really make any sense, so
this shouldn't go in in any form.