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

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Message-ID: <20230822112217.185c3357@canb.auug.org.au>
Date:   Tue, 22 Aug 2023 11:22:17 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: linux-next: build failure after merge of the mm tree

Hi Matthew,

On Tue, 22 Aug 2023 02:11:44 +0100 Matthew Wilcox <willy@...radead.org> wrote:
>
> On Tue, Aug 22, 2023 at 09:55:37AM +1000, Stephen Rothwell wrote:
> > In file included from include/trace/trace_events.h:27,
> >                  from include/trace/define_trace.h:102,
> >                  from fs/xfs/xfs_trace.h:4428,
> >                  from fs/xfs/xfs_trace.c:45:
> > include/linux/pgtable.h:8:25: error: initializer element is not constant
> >     8 | #define PMD_ORDER       (PMD_SHIFT - PAGE_SHIFT)  
> 
> Ummm.  PowerPC doesn't have a compile-time constant PMD size?

Yeah, you are not the first (or probably the last) to be caught by that.

-- 
Cheers,
Stephen Rothwell

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