Re: linux-next: build failure after merge of the mm tree
From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2023-08-22 07:19:42
Also in:
linux-next, lkml
Possibly related (same subject, not in this thread)
- 2023-12-01 · Re: linux-next: build failure after merge of the mm tree · Michael Ellerman <mpe@ellerman.id.au>
- 2023-11-30 · Re: linux-next: build failure after merge of the mm tree · Andrew Morton <akpm@linux-foundation.org>
- 2023-11-30 · Re: linux-next: build failure after merge of the mm tree · Michael Ellerman <mpe@ellerman.id.au>
- 2023-11-30 · Re: linux-next: build failure after merge of the mm tree · Andrew Morton <akpm@linux-foundation.org>
- 2023-11-30 · Re: linux-next: build failure after merge of the mm tree · Stephen Rothwell <hidden>
Matthew Wilcox [off-list ref] writes:
On Tue, Aug 22, 2023 at 09:55:37AM +1000, Stephen Rothwell wrote:quoted
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. The joys of supporting two MMUs with different supported page sizes in a single kernel binary.
arch/powerpc/include/asm/book3s/64/pgtable.h:#define PMD_SHIFT (PAGE_SHIFT + PTE_INDEX_SIZE) arch/powerpc/include/asm/book3s/64/pgtable.h:#define PTE_INDEX_SIZE __pte_index_size That's really annoying. I'll try to work around it.
Sorry, thanks. cheers