powerpc/32s: Inline flush_tlb_range() and flush_tlb_kernel_range()

flush_tlb_range() and flush_tlb_kernel_range() are trivial calls to
flush_range().

Make flush_range() global and inline flush_tlb_range()
and flush_tlb_kernel_range().
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c7029a78e78709ad9272d7a44260e06b649169b2.1603348103.git.christophe.leroy@csgroup.eu

arch/powerpc/include/asm/book3s/32/tlbflush.h

@@ -8,9 +8,7 @@
  */
 void hash__flush_tlb_mm(struct mm_struct *mm);
 void hash__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
-extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
-			    unsigned long end);
-extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
+void flush_range(struct mm_struct *mm, unsigned long start, unsigned long end);
 
 #ifdef CONFIG_SMP
 void _tlbie(unsigned long address);
@@ -38,6 +36,17 @@ static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmad
 		_tlbie(vmaddr);
 }
 
+static inline void
+flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end)
+{
+	flush_range(vma->vm_mm, start, end);
+}
+
+static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+	flush_range(&init_mm, start, end);
+}
+
 static inline void local_flush_tlb_page(struct vm_area_struct *vma,
 					unsigned long vmaddr)
 {

arch/powerpc/mm/book3s32/tlb.c

@@ -71,8 +71,12 @@ void tlb_flush(struct mmu_gather *tlb)
  *    -- Cort
  */
 
-static void flush_range(struct mm_struct *mm, unsigned long start,
-			unsigned long end)
+/*
+ * For each address in the range, find the pte for the address
+ * and check _PAGE_HASHPTE bit; if it is set, find and destroy
+ * the corresponding HPTE.
+ */
+void flush_range(struct mm_struct *mm, unsigned long start, unsigned long end)
 {
 	pmd_t *pmd;
 	unsigned long pmd_end;
@@ -105,15 +109,7 @@ static void flush_range(struct mm_struct *mm, unsigned long start,
 		++pmd;
 	}
 }
-
-/*
- * Flush kernel TLB entries in the given range
- */
-void flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
-	flush_range(&init_mm, start, end);
-}
-EXPORT_SYMBOL(flush_tlb_kernel_range);
+EXPORT_SYMBOL(flush_range);
 
 /*
  * Flush all the (user) entries for the address space described by mm.
@@ -145,18 +141,6 @@ void hash__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
 }
 EXPORT_SYMBOL(hash__flush_tlb_page);
 
-/*
- * For each address in the range, find the pte for the address
- * and check _PAGE_HASHPTE bit; if it is set, find and destroy
- * the corresponding HPTE.
- */
-void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
-		     unsigned long end)
-{
-	flush_range(vma->vm_mm, start, end);
-}
-EXPORT_SYMBOL(flush_tlb_range);
-
 void __init early_init_mmu(void)
 {
 }