No functional change in this patch.

Cc: linux-al...@vger.kernel.org
Cc: linux-ker...@vger.kernel.org
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-i...@vger.kernel.org
Cc: linux-m...@lists.linux-m68k.org
Cc: linux-m...@vger.kernel.org
Cc: linux-par...@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-ri...@lists.infradead.org
Cc: linux...@vger.kernel.org
Cc: sparcli...@vger.kernel.org
Cc: linux...@lists.infradead.org
Cc: linux-a...@vger.kernel.org

Link: 
https://lore.kernel.org/linuxppc-dev/CAHk-=wi+j+iodze9ftjm3zi4j4oes+qqbkxme9qn4roxpex...@mail.gmail.com/
Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.ibm.com>
---
 arch/arm64/include/asm/pgtable.h                | 4 ++--
 arch/ia64/include/asm/pgtable.h                 | 2 +-
 arch/mips/include/asm/pgtable-64.h              | 4 ++--
 arch/powerpc/include/asm/book3s/64/pgtable.h    | 5 ++++-
 arch/powerpc/include/asm/nohash/64/pgtable-4k.h | 6 +++++-
 arch/powerpc/mm/book3s64/radix_pgtable.c        | 2 +-
 arch/powerpc/mm/pgtable_64.c                    | 2 +-
 arch/sparc/include/asm/pgtable_64.h             | 4 ++--
 arch/x86/include/asm/pgtable.h                  | 4 ++--
 arch/x86/mm/init_64.c                           | 4 ++--
 include/asm-generic/pgtable-nop4d.h             | 2 +-
 include/asm-generic/pgtable-nopud.h             | 2 +-
 include/linux/pgtable.h                         | 2 +-
 13 files changed, 25 insertions(+), 18 deletions(-)

diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 53a415b329b0..fde06639fff8 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -697,9 +697,9 @@ static inline phys_addr_t p4d_page_paddr(p4d_t p4d)
        return __p4d_to_phys(p4d);
 }
 
-static inline unsigned long p4d_page_vaddr(p4d_t p4d)
+static inline pud_t *p4d_pgtable(p4d_t p4d)
 {
-       return (unsigned long)__va(p4d_page_paddr(p4d));
+       return (pud_t *)__va(p4d_page_paddr(p4d));
 }
 
 /* Find an entry in the frst-level page table. */
diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
index b2ddfbe70365..a2d5098b299a 100644
--- a/arch/ia64/include/asm/pgtable.h
+++ b/arch/ia64/include/asm/pgtable.h
@@ -282,7 +282,7 @@ ia64_phys_addr_valid (unsigned long addr)
 #define p4d_bad(p4d)                   (!ia64_phys_addr_valid(p4d_val(p4d)))
 #define p4d_present(p4d)               (p4d_val(p4d) != 0UL)
 #define p4d_clear(p4dp)                        (p4d_val(*(p4dp)) = 0UL)
-#define p4d_page_vaddr(p4d)            ((unsigned long) __va(p4d_val(p4d) & 
_PFN_MASK))
+#define p4d_pgtable(p4d)               ((pud_t *) __va(p4d_val(p4d) & 
_PFN_MASK))
 #define p4d_page(p4d)                  virt_to_page((p4d_val(p4d) + 
PAGE_OFFSET))
 #endif
 
diff --git a/arch/mips/include/asm/pgtable-64.h 
b/arch/mips/include/asm/pgtable-64.h
index ab305453e90f..b865edff2670 100644
--- a/arch/mips/include/asm/pgtable-64.h
+++ b/arch/mips/include/asm/pgtable-64.h
@@ -210,9 +210,9 @@ static inline void p4d_clear(p4d_t *p4dp)
        p4d_val(*p4dp) = (unsigned long)invalid_pud_table;
 }
 
-static inline unsigned long p4d_page_vaddr(p4d_t p4d)
+static inline pud_t *p4d_pgtable(p4d_t p4d)
 {
-       return p4d_val(p4d);
+       return (pud_t *)p4d_val(p4d);
 }
 
 #define p4d_phys(p4d)          virt_to_phys((void *)p4d_val(p4d))
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h 
b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 40bafe1e80c9..cbedc7c8959d 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -1048,7 +1048,10 @@ extern struct page *p4d_page(p4d_t p4d);
 /* Pointers in the page table tree are physical addresses */
 #define __pgtable_ptr_val(ptr) __pa(ptr)
 
-#define p4d_page_vaddr(p4d)    __va(p4d_val(p4d) & ~P4D_MASKED_BITS)
+static inline pud_t *p4d_pgtable(p4d_t p4d)
+{
+       return (pud_t *)__va(p4d_val(p4d) & ~P4D_MASKED_BITS);
+}
 
 static inline pmd_t *pud_pgtable(pud_t pud)
 {
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable-4k.h 
b/arch/powerpc/include/asm/nohash/64/pgtable-4k.h
index fe2f4c9acd9e..10f5cf444d72 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable-4k.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable-4k.h
@@ -56,10 +56,14 @@
 #define p4d_none(p4d)          (!p4d_val(p4d))
 #define p4d_bad(p4d)           (p4d_val(p4d) == 0)
 #define p4d_present(p4d)       (p4d_val(p4d) != 0)
-#define p4d_page_vaddr(p4d)    (p4d_val(p4d) & ~P4D_MASKED_BITS)
 
 #ifndef __ASSEMBLY__
 
+static inline pud_t *p4d_pgtable(p4d_t p4d)
+{
+       return (pud_t *) (p4d_val(p4d) & ~P4D_MASKED_BITS);
+}
+
 static inline void p4d_clear(p4d_t *p4dp)
 {
        *p4dp = __p4d(0);
diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c 
b/arch/powerpc/mm/book3s64/radix_pgtable.c
index b663d8f9f05c..1ba6d9291c10 100644
--- a/arch/powerpc/mm/book3s64/radix_pgtable.c
+++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
@@ -859,7 +859,7 @@ static void __meminit remove_pagetable(unsigned long start, 
unsigned long end)
                        continue;
                }
 
-               pud_base = (pud_t *)p4d_page_vaddr(*p4d);
+               pud_base = p4d_pgtable(*p4d);
                remove_pud_table(pud_base, addr, next);
                free_pud_table(pud_base, p4d);
        }
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index 4ba311808bdb..78c8cf01db5f 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -105,7 +105,7 @@ struct page *p4d_page(p4d_t p4d)
                VM_WARN_ON(!p4d_huge(p4d));
                return pte_page(p4d_pte(p4d));
        }
-       return virt_to_page(p4d_page_vaddr(p4d));
+       return virt_to_page(p4d_pgtable(p4d));
 }
 #endif
 
diff --git a/arch/sparc/include/asm/pgtable_64.h 
b/arch/sparc/include/asm/pgtable_64.h
index 534ec872fa2c..c0f56da1c205 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -860,8 +860,8 @@ static inline pmd_t *pud_pgtable(pud_t pud)
 #define pmd_clear(pmdp)                        (pmd_val(*(pmdp)) = 0UL)
 #define pud_present(pud)               (pud_val(pud) != 0U)
 #define pud_clear(pudp)                        (pud_val(*(pudp)) = 0UL)
-#define p4d_page_vaddr(p4d)            \
-       ((unsigned long) __va(p4d_val(p4d)))
+#define p4d_pgtable(p4d)               \
+       ((pud_t *) __va(p4d_val(p4d)))
 #define p4d_present(p4d)               (p4d_val(p4d) != 0U)
 #define p4d_clear(p4dp)                        (p4d_val(*(p4dp)) = 0UL)
 
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 35a34ca6f2e9..b6c97b8f59ec 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -906,9 +906,9 @@ static inline int p4d_present(p4d_t p4d)
        return p4d_flags(p4d) & _PAGE_PRESENT;
 }
 
-static inline unsigned long p4d_page_vaddr(p4d_t p4d)
+static inline pud_t *p4d_pgtable(p4d_t p4d)
 {
-       return (unsigned long)__va(p4d_val(p4d) & p4d_pfn_mask(p4d));
+       return (pud_t *)__va(p4d_val(p4d) & p4d_pfn_mask(p4d));
 }
 
 /*
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index e527d829e1ed..ffb3da2cb038 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -193,8 +193,8 @@ static void sync_global_pgds_l4(unsigned long start, 
unsigned long end)
                        spin_lock(pgt_lock);
 
                        if (!p4d_none(*p4d_ref) && !p4d_none(*p4d))
-                               BUG_ON(p4d_page_vaddr(*p4d)
-                                      != p4d_page_vaddr(*p4d_ref));
+                               BUG_ON(p4d_pgtable(*p4d)
+                                      != p4d_pgtable(*p4d_ref));
 
                        if (p4d_none(*p4d))
                                set_p4d(p4d, *p4d_ref);
diff --git a/include/asm-generic/pgtable-nop4d.h 
b/include/asm-generic/pgtable-nop4d.h
index ce2cbb3c380f..982de5102fc1 100644
--- a/include/asm-generic/pgtable-nop4d.h
+++ b/include/asm-generic/pgtable-nop4d.h
@@ -42,7 +42,7 @@ static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long 
address)
 #define __p4d(x)                               ((p4d_t) { __pgd(x) })
 
 #define pgd_page(pgd)                          (p4d_page((p4d_t){ pgd }))
-#define pgd_page_vaddr(pgd)                    (p4d_page_vaddr((p4d_t){ pgd }))
+#define pgd_page_vaddr(pgd)                    (p4d_pgtable((p4d_t){ pgd }))
 
 /*
  * allocating and freeing a p4d is trivial: the 1-entry p4d is
diff --git a/include/asm-generic/pgtable-nopud.h 
b/include/asm-generic/pgtable-nopud.h
index 7cbd15f70bf5..eb70c6d7ceff 100644
--- a/include/asm-generic/pgtable-nopud.h
+++ b/include/asm-generic/pgtable-nopud.h
@@ -49,7 +49,7 @@ static inline pud_t *pud_offset(p4d_t *p4d, unsigned long 
address)
 #define __pud(x)                               ((pud_t) { __p4d(x) })
 
 #define p4d_page(p4d)                          (pud_page((pud_t){ p4d }))
-#define p4d_page_vaddr(p4d)                    (pud_pgtable((pud_t){ p4d }))
+#define p4d_pgtable(p4d)                       ((pud_t *)(pud_pgtable((pud_t){ 
p4d })))
 
 /*
  * allocating and freeing a pud is trivial: the 1-entry pud is
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 311984f87cf9..d355290bf70e 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -96,7 +96,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long 
address)
 #ifndef pud_offset
 static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address)
 {
-       return (pud_t *)p4d_page_vaddr(*p4d) + pud_index(address);
+       return p4d_pgtable(*p4d) + pud_index(address);
 }
 #define pud_offset pud_offset
 #endif
-- 
2.31.1

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