[SPARC]: Kill io_remap_page_range()

It's been deprecated long enough and there are no in-tree
users any longer.

Signed-off-by: David S. Miller <davem@davemloft.net>

5 files changed, 1 insertions, 94 deletions

diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index 8faa8dc4de43..5d974a2b735a 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -175,7 +175,6 @@ EXPORT_SYMBOL(set_auxio);
 EXPORT_SYMBOL(get_auxio);
 #endif
 EXPORT_SYMBOL(request_fast_irq);
-EXPORT_SYMBOL(io_remap_page_range);
 EXPORT_SYMBOL(io_remap_pfn_range);
   /* P3: iounit_xxx may be needed, sun4d users */
 /* EXPORT_SYMBOL(iounit_map_dma_init); */
diff --git a/arch/sparc/mm/generic.c b/arch/sparc/mm/generic.c
index db27eee3bda1..20ccb957fb77 100644
--- a/arch/sparc/mm/generic.c
+++ b/arch/sparc/mm/generic.c
@@ -16,31 +16,6 @@
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
 
-static inline void forget_pte(pte_t page)
-{
-#if 0 /* old 2.4 code */
-        if (pte_none(page))
-                return;
-        if (pte_present(page)) {
-                unsigned long pfn = pte_pfn(page);
-                struct page *ptpage;
-                if (!pfn_valid(pfn))
-                        return;
-                ptpage = pfn_to_page(pfn);
-                if (PageReserved(ptpage))
-                        return;
-                page_cache_release(ptpage);
-                return;
-        }
-        swap_free(pte_to_swp_entry(page));
-#else
-        if (!pte_none(page)) {
-                printk("forget_pte: old mapping existed!\n");
-                BUG();
-        }
-#endif
-}
-
 /* Remap IO memory, the same way as remap_pfn_range(), but use
  * the obio memory space.
  *
@@ -60,7 +35,6 @@ static inline void io_remap_pte_range(struct mm_struct *mm, pte_t * pte, unsigne
                 pte_t oldpage = *pte;
                 pte_clear(mm, address, pte);
                 set_pte(pte, mk_pte_io(offset, prot, space));
-                forget_pte(oldpage);
                 address += PAGE_SIZE;
                 offset += PAGE_SIZE;
                 pte++;
@@ -88,37 +62,6 @@ static inline int io_remap_pmd_range(struct mm_struct *mm, pmd_t * pmd, unsigned
         return 0;
 }
 
-int io_remap_page_range(struct vm_area_struct *vma, unsigned long from, unsigned long offset, unsigned long size, pgprot_t prot, int space)
-{
-        int error = 0;
-        pgd_t * dir;
-        unsigned long beg = from;
-        unsigned long end = from + size;
-        struct mm_struct *mm = vma->vm_mm;
-
-        prot = __pgprot(pg_iobits);
-        offset -= from;
-        dir = pgd_offset(mm, from);
-        flush_cache_range(vma, beg, end);
-
-        spin_lock(&mm->page_table_lock);
-        while (from < end) {
-                pmd_t *pmd = pmd_alloc(current->mm, dir, from);
-                error = -ENOMEM;
-                if (!pmd)
-                        break;
-                error = io_remap_pmd_range(mm, pmd, from, end - from, offset + from, prot, space);
-                if (error)
-                        break;
-                from = (from + PGDIR_SIZE) & PGDIR_MASK;
-                dir++;
-        }
-        spin_unlock(&mm->page_table_lock);
-
-        flush_tlb_range(vma, beg, end);
-        return error;
-}
-
 int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
                         unsigned long pfn, unsigned long size, pgprot_t prot)
 {
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index f21c993f8856..ec8bf4012c0c 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -736,8 +736,7 @@ static void __pci_mmap_set_flags(struct pci_dev *dev, struct vm_area_struct *vma
 static void __pci_mmap_set_pgprot(struct pci_dev *dev, struct vm_area_struct *vma,
                                              enum pci_mmap_state mmap_state)
 {
-        /* Our io_remap_page_range/io_remap_pfn_range takes care of this,
-           do nothing. */
+        /* Our io_remap_pfn_range takes care of this, do nothing.  */
 }
 
 /* Perform the actual remap of the pages for a PCI device mapping, as appropriate
diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c
index a3ea697f1adb..d89fc24808d3 100644
--- a/arch/sparc64/kernel/sparc64_ksyms.c
+++ b/arch/sparc64/kernel/sparc64_ksyms.c
@@ -88,8 +88,6 @@ extern int svr4_setcontext(svr4_ucontext_t *uc, struct pt_regs *regs);
 extern int compat_sys_ioctl(unsigned int fd, unsigned int cmd, u32 arg);
 extern int (*handle_mathemu)(struct pt_regs *, struct fpustate *);
 extern long sparc32_open(const char __user * filename, int flags, int mode);
-extern int io_remap_page_range(struct vm_area_struct *vma, unsigned long from,
-        unsigned long offset, unsigned long size, pgprot_t prot, int space);
 extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
         unsigned long pfn, unsigned long size, pgprot_t prot);
 extern void (*prom_palette)(int);
@@ -245,7 +243,6 @@ EXPORT_SYMBOL(pci_dma_supported);
 #endif
 
 /* I/O device mmaping on Sparc64. */
-EXPORT_SYMBOL(io_remap_page_range);
 EXPORT_SYMBOL(io_remap_pfn_range);
 
 /* Solaris/SunOS binary compatibility */
diff --git a/arch/sparc64/mm/generic.c b/arch/sparc64/mm/generic.c
index 6b31f6117a95..c954d91f01d0 100644
--- a/arch/sparc64/mm/generic.c
+++ b/arch/sparc64/mm/generic.c
@@ -116,37 +116,6 @@ static inline int io_remap_pud_range(struct mm_struct *mm, pud_t * pud, unsigned
         return 0;
 }
 
-int io_remap_page_range(struct vm_area_struct *vma, unsigned long from, unsigned long offset, unsigned long size, pgprot_t prot, int space)
-{
-        int error = 0;
-        pgd_t * dir;
-        unsigned long beg = from;
-        unsigned long end = from + size;
-        struct mm_struct *mm = vma->vm_mm;
-
-        prot = __pgprot(pg_iobits);
-        offset -= from;
-        dir = pgd_offset(mm, from);
-        flush_cache_range(vma, beg, end);
-
-        spin_lock(&mm->page_table_lock);
-        while (from < end) {
-                pud_t *pud = pud_alloc(mm, dir, from);
-                error = -ENOMEM;
-                if (!pud)
-                        break;
-                error = io_remap_pud_range(mm, pud, from, end - from, offset + from, prot, space);
-                if (error)
-                        break;
-                from = (from + PGDIR_SIZE) & PGDIR_MASK;
-                dir++;
-        }
-        flush_tlb_range(vma, beg, end);
-        spin_unlock(&mm->page_table_lock);
-
-        return error;
-}
-
 int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
                 unsigned long pfn, unsigned long size, pgprot_t prot)
 {