linux-kernel - RE: modpost Module.symver handling is broken in 5.6.0-rc7

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Date:   Thu, 26 Mar 2020 17:34:35 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Jessica Yu' <jeyu@...nel.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "'Linus Torvalds'" <torvalds@...ux-foundation.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Matthias Maennich <maennich@...gle.com>
Subject: RE: modpost Module.symver handling is broken in 5.6.0-rc7

From: Jessica Yu
> Sent: 26 March 2020 17:15
...
> I'm a bit confused - just to confirm, is there a legitimate bug
> upstream or was it just a hiccup related to your setup?

An upstream change broke our build scripts in a very confusing way.

I think KBUILD_EXTRA_SYMBOLS was added in 2.6.26.
Since we no longer need to build on anything older than 2.6.32
I can use that instead of copying the Module.symvers from the
other build directory and relying on the build scripts passing
-I Module.symver to modpost.

I just need to find a suitable system to check it on.
All made more difficult by working from home....

	David

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