linux-kernel - linux-next: manual merge of the akpm-current tree with the powerpc tree

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Date:   Mon, 8 Jul 2019 21:43:28 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        PowerPC <linuxppc-dev@...ts.ozlabs.org>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>
Subject: linux-next: manual merge of the akpm-current tree with the powerpc
 tree

Hi all,

Today's linux-next merge of the akpm-current tree got a conflict in:

  arch/powerpc/include/asm/pgtable.h

between commit:

  d6eacedd1f0e ("powerpc/book3s: Use config independent helpers for page table walk")

from the powerpc tree and commit:

  be66a174b253 ("mm/nvdimm: add is_ioremap_addr and use that to check ioremap address")

from the akpm-current tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc arch/powerpc/include/asm/pgtable.h
index bf7d771f342e,64145751b2fd..000000000000
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@@ -140,30 -140,20 +140,44 @@@ static inline void pte_frag_set(mm_cont
  }
  #endif
  
 +#ifndef pmd_is_leaf
 +#define pmd_is_leaf pmd_is_leaf
 +static inline bool pmd_is_leaf(pmd_t pmd)
 +{
 +	return false;
 +}
 +#endif
 +
 +#ifndef pud_is_leaf
 +#define pud_is_leaf pud_is_leaf
 +static inline bool pud_is_leaf(pud_t pud)
 +{
 +	return false;
 +}
 +#endif
 +
 +#ifndef pgd_is_leaf
 +#define pgd_is_leaf pgd_is_leaf
 +static inline bool pgd_is_leaf(pgd_t pgd)
 +{
 +	return false;
 +}
 +#endif
 +
+ #ifdef CONFIG_PPC64
+ #define is_ioremap_addr is_ioremap_addr
+ static inline bool is_ioremap_addr(const void *x)
+ {
+ #ifdef CONFIG_MMU
+ 	unsigned long addr = (unsigned long)x;
+ 
+ 	return addr >= IOREMAP_BASE && addr < IOREMAP_END;
+ #else
+ 	return false;
+ #endif
+ }
+ #endif /* CONFIG_PPC64 */
+ 
  #endif /* __ASSEMBLY__ */
  
  #endif /* _ASM_POWERPC_PGTABLE_H */

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