Re: linux-next: fix ups for clashes between akpm and powerpc trees

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Hi all,

On Thu, 4 Jun 2020 16:52:46 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> diff --git a/arch/powerpc/mm/kasan/8xx.c b/arch/powerpc/mm/kasan/8xx.c
> index db4ef44af22f..569d98a41881 100644
> --- a/arch/powerpc/mm/kasan/8xx.c
> +++ b/arch/powerpc/mm/kasan/8xx.c
> @@ -10,7 +10,7 @@
>  static int __init
>  kasan_init_shadow_8M(unsigned long k_start, unsigned long k_end, void *block)
>  {
> -	pmd_t *pmd = pmd_ptr_k(k_start);
> +	pmd_t *pmd = pmd_off_k(k_start);
>  	unsigned long k_cur, k_next;
>  
>  	for (k_cur = k_start; k_cur != k_end; k_cur = k_next, pmd += 2, block += SZ_8M) {
> @@ -59,7 +59,7 @@ int __init kasan_init_region(void *start, size_t size)
>  		return ret;
>  
>  	for (; k_cur < k_end; k_cur += PAGE_SIZE) {
> -		pmd_t *pmd = pmd_ptr_k(k_cur);
> +		pmd_t *pmd = pmd_off_k(k_cur);
>  		void *va = block + k_cur - k_start;
>  		pte_t pte = pfn_pte(PHYS_PFN(__pa(va)), PAGE_KERNEL);
>  
> diff --git a/arch/powerpc/mm/kasan/book3s_32.c b/arch/powerpc/mm/kasan/book3s_32.c
> index 4bc491a4a1fd..a32b4640b9de 100644
> --- a/arch/powerpc/mm/kasan/book3s_32.c
> +++ b/arch/powerpc/mm/kasan/book3s_32.c
> @@ -46,7 +46,7 @@ int __init kasan_init_region(void *start, size_t size)
>  	kasan_update_early_region(k_start, k_cur, __pte(0));
>  
>  	for (; k_cur < k_end; k_cur += PAGE_SIZE) {
> -		pmd_t *pmd = pmd_ptr_k(k_cur);
> +		pmd_t *pmd = pmd_off_k(k_cur);
>  		void *va = block + k_cur - k_start;
>  		pte_t pte = pfn_pte(PHYS_PFN(__pa(va)), PAGE_KERNEL);
>  
> diff --git a/arch/powerpc/mm/nohash/8xx.c b/arch/powerpc/mm/nohash/8xx.c
> index 286441bbbe49..92e8929cbe3e 100644
> --- a/arch/powerpc/mm/nohash/8xx.c
> +++ b/arch/powerpc/mm/nohash/8xx.c
> @@ -74,7 +74,7 @@ static pte_t __init *early_hugepd_alloc_kernel(hugepd_t *pmdp, unsigned long va)
>  static int __ref __early_map_kernel_hugepage(unsigned long va, phys_addr_t pa,
>  					     pgprot_t prot, int psize, bool new)
>  {
> -	pmd_t *pmdp = pmd_ptr_k(va);
> +	pmd_t *pmdp = pmd_off_k(va);
>  	pte_t *ptep;
>  
>  	if (WARN_ON(psize != MMU_PAGE_512K && psize != MMU_PAGE_8M))
> diff --git a/arch/powerpc/mm/pgtable.c b/arch/powerpc/mm/pgtable.c
> index 45a0556089e8..1136257c3a99 100644
> --- a/arch/powerpc/mm/pgtable.c
> +++ b/arch/powerpc/mm/pgtable.c
> @@ -264,7 +264,7 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma,
>  #if defined(CONFIG_PPC_8xx)
>  void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte)
>  {
> -	pmd_t *pmd = pmd_ptr(mm, addr);
> +	pmd_t *pmd = pmd_off(mm, addr);
>  	pte_basic_t val;
>  	pte_basic_t *entry = &ptep->pte;
>  	int num = is_hugepd(*((hugepd_t *)pmd)) ? 1 : SZ_512K / SZ_4K;
> diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
> index e2d054c9575e..6eb4eab79385 100644
> --- a/arch/powerpc/mm/pgtable_32.c
> +++ b/arch/powerpc/mm/pgtable_32.c
> @@ -40,7 +40,7 @@ notrace void __init early_ioremap_init(void)
>  {
>  	unsigned long addr = ALIGN_DOWN(FIXADDR_START, PGDIR_SIZE);
>  	pte_t *ptep = (pte_t *)early_fixmap_pagetable;
> -	pmd_t *pmdp = pmd_ptr_k(addr);
> +	pmd_t *pmdp = pmd_off_k(addr);
>  
>  	for (; (s32)(FIXADDR_TOP - addr) > 0;
>  	     addr += PGDIR_SIZE, ptep += PTRS_PER_PTE, pmdp++)

I have added the above hunks as to linux-next for tomorrow as a fix for
mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte.

-- 
Cheers,
Stephen Rothwell

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