Re: linux-next: build failure after merge of the modules tree

From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Jessica Yu <jeyu@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Linux Next Mailing List <linux-next@vger.kernel.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Masahiro Yamada <masahiroy@kernel.org>
Subject: Re: linux-next: build failure after merge of the modules tree
Date: Wed, 10 Feb 2021 23:21:48 +1100	[thread overview]
Message-ID: <20210210232148.4f9d4a43@canb.auug.org.au> (raw)
In-Reply-To: <YCOUGGJtUJ+Nf0ZA@gunter>

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Hi Jessica,

On Wed, 10 Feb 2021 09:06:48 +0100 Jessica Yu <jeyu@kernel.org> wrote:
> 
> Sorry, by "feature" I meant CONFIG_TRIM_UNUSED_KSYMS. This config
> option was introduced around v4.7. If simply enabling it produces
> these compilation errors I was wondering if it ever built properly on
> powerpc.

Ah, of course.  So for a quick fix, you could revert just the changes
to lib/Kconfig and all the defconfigs.  That way all the UNUSED_SYMBOLS
infrastructure is still removed, but TRIM_UNUSED_KSYMS remains (un)set
whenever it used to be (un)set and that could then be cleaned up in a
followup patch set per architecture when we know it works.
-- 
Cheers,
Stephen Rothwell

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