Re: [PATCH v9 01/42] mm: Rename arch pte_mkwrite()'s to pte_mkwrite_novma()

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On Mon, Jun 12, 2023 at 05:10:27PM -0700, Rick Edgecombe wrote:
> The x86 Shadow stack feature includes a new type of memory called shadow
> stack. This shadow stack memory has some unusual properties, which requires
> some core mm changes to function properly.

This seems to break sparc64_defconfig when applied on top of v6.5-rc1:

In file included from /home/broonie/git/bisect/include/linux/mm.h:29,
                 from /home/broonie/git/bisect/net/core/skbuff.c:40:
/home/broonie/git/bisect/include/linux/pgtable.h: In function 'pmd_mkwrite':
/home/broonie/git/bisect/include/linux/pgtable.h:528:9: error: implicit declaration of function 'pmd_mkwrite_novma'; did you mean 'pte_mkwrite_novma'? [-Werror=implicit-function-declaration]
  return pmd_mkwrite_novma(pmd);
/home/broonie/git/bisect/include/linux/pgtable.h:528:9: error: incompatible types when returning type 'int' but 'pmd_t' {aka 'struct <anonymous>'} was expected
  return pmd_mkwrite_novma(pmd);

The same issue seems to apply with the version that was in -next based
on v6.4-rc4 too.

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