lkml.org 
[lkml]   [2023]   [Aug]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: linux-next: build failure after merge of the mm tree
Date
Matthew Wilcox <willy@infradead.org> writes:
> 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. 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

\
 
 \ /
  Last update: 2023-08-22 09:20    [W:0.059 / U:0.604 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site