x86: style cleanup of ioremap code

Fix the coding style before going further.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>

2 files changed, 70 insertions, 75 deletions

diff --git a/arch/x86/mm/ioremap_32.c b/arch/x86/mm/ioremap_32.c
index 18757f058bda..30ff2586db1e 100644
--- a/arch/x86/mm/ioremap_32.c
+++ b/arch/x86/mm/ioremap_32.c
@@ -1,6 +1,4 @@
 /*
- * arch/i386/mm/ioremap.c
- *
  * Re-map IO memory to kernel address space so that we can access it.
  * This is needed for high PCI addresses that aren't mapped in the
  * 640k-1MB IO memory area on PC's
@@ -22,10 +20,6 @@
 #define ISA_END_ADDRESS         0x100000
 
 /*
- * Generic mapping function (not visible outside):
- */
-
-/*
  * Remap an arbitrary physical address space into the kernel virtual
  * address space. Needed when the kernel wants to access high addresses
  * directly.
@@ -34,10 +28,11 @@
  * have to convert them into an offset in a page-aligned mapping, but the
  * caller shouldn't need to know that small detail.
  */
-void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
+void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
+                        unsigned long flags)
 {
-        void __iomem * addr;
-        struct vm_struct * area;
+        void __iomem *addr;
+        struct vm_struct *area;
         unsigned long offset, last_addr;
         pgprot_t prot;
 
@@ -61,9 +56,10 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
 
                 t_addr = __va(phys_addr);
                 t_end = t_addr + (size - 1);
-           
-                for(page = virt_to_page(t_addr); page <= virt_to_page(t_end); page++)
-                        if(!PageReserved(page))
+
+                for (page = virt_to_page(t_addr);
+                     page <= virt_to_page(t_end); page++)
+                        if (!PageReserved(page))
                                 return NULL;
         }
 
@@ -85,7 +81,7 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
         area->phys_addr = phys_addr;
         addr = (void __iomem *) area->addr;
         if (ioremap_page_range((unsigned long) addr,
-                        (unsigned long) addr + size, phys_addr, prot)) {
+                               (unsigned long) addr + size, phys_addr, prot)) {
                 vunmap((void __force *) addr);
                 return NULL;
         }
@@ -102,31 +98,31 @@ EXPORT_SYMBOL(__ioremap);
  * make bus memory CPU accessible via the readb/readw/readl/writeb/
  * writew/writel functions and the other mmio helpers. The returned
  * address is not guaranteed to be usable directly as a virtual
- * address. 
+ * address.
  *
  * This version of ioremap ensures that the memory is marked uncachable
  * on the CPU as well as honouring existing caching rules from things like
- * the PCI bus. Note that there are other caches and buffers on many 
+ * the PCI bus. Note that there are other caches and buffers on many
  * busses. In particular driver authors should read up on PCI writes
  *
  * It's useful if some control registers are in such an area and
  * write combining or read caching is not desirable:
- * 
+ *
  * Must be freed with iounmap.
  */
-
-void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
+void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size)
 {
         unsigned long last_addr;
         void __iomem *p = __ioremap(phys_addr, size, _PAGE_PCD | _PAGE_PWT);
-        if (!p) 
-                return p; 
+
+        if (!p)
+                return p;
 
         /* Guaranteed to be > phys_addr, as per __ioremap() */
         last_addr = phys_addr + size - 1;
 
         if (last_addr < virt_to_phys(high_memory) - 1) {
-                struct page *ppage = virt_to_page(__va(phys_addr));             
+                struct page *ppage = virt_to_page(__va(phys_addr));
                 unsigned long npages;
 
                 phys_addr &= PAGE_MASK;
@@ -135,18 +131,18 @@ void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
                 last_addr = PAGE_ALIGN(last_addr);
 
                 /* .. but that's ok, because modulo-2**n arithmetic will make
-                * the page-aligned "last - first" come out right.
-                */
+                 * the page-aligned "last - first" come out right.
+                 */
                 npages = (last_addr - phys_addr) >> PAGE_SHIFT;
 
-                if (change_page_attr(ppage, npages, PAGE_KERNEL_NOCACHE) < 0) { 
-                        iounmap(p); 
+                if (change_page_attr(ppage, npages, PAGE_KERNEL_NOCACHE) < 0) {
+                        iounmap(p);
                         p = NULL;
                 }
                 global_flush_tlb();
         }
 
-        return p;                                       
+        return p;
 }
 EXPORT_SYMBOL(ioremap_nocache);
 
@@ -169,10 +165,11 @@ void iounmap(volatile void __iomem *addr)
          * of ISA space.   So handle that here.
          */
         if (addr >= phys_to_virt(ISA_START_ADDRESS) &&
-                        addr < phys_to_virt(ISA_END_ADDRESS))
+            addr < phys_to_virt(ISA_END_ADDRESS))
                 return;
 
-        addr = (volatile void __iomem *)(PAGE_MASK & (unsigned long __force)addr);
+        addr = (volatile void __iomem *)
+                (PAGE_MASK & (unsigned long __force)addr);
 
         /* Use the vm area unlocked, assuming the caller
            ensures there isn't another iounmap for the same address
@@ -187,7 +184,7 @@ void iounmap(volatile void __iomem *addr)
         read_unlock(&vmlist_lock);
 
         if (!p) {
-                printk("iounmap: bad address %p\n", addr);
+                printk(KERN_ERR "iounmap: bad address %p\n", addr);
                 dump_stack();
                 return;
         }
@@ -198,12 +195,12 @@ void iounmap(volatile void __iomem *addr)
                                  get_vm_area_size(p) >> PAGE_SHIFT,
                                  PAGE_KERNEL);
                 global_flush_tlb();
-        } 
+        }
 
         /* Finally remove it */
         o = remove_vm_area((void *)addr);
         BUG_ON(p != o || o == NULL);
-        kfree(p); 
+        kfree(p);
 }
 EXPORT_SYMBOL(iounmap);
 
@@ -237,7 +234,7 @@ void __init early_ioremap_init(void)
         unsigned long *pgd;
 
         if (early_ioremap_debug)
-                printk("early_ioremap_init()\n");
+                printk(KERN_DEBUG "early_ioremap_init()\n");
 
         pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
         *pgd = __pa(bm_pte) | _PAGE_TABLE;
@@ -248,15 +245,16 @@ void __init early_ioremap_init(void)
          */
         if (pgd != early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END))) {
                 WARN_ON(1);
-                printk("pgd %p != %p\n",
-                        pgd, early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
-                printk("fix_to_virt(FIX_BTMAP_BEGIN): %08lx\n",
-                        fix_to_virt(FIX_BTMAP_BEGIN));
-                printk("fix_to_virt(FIX_BTMAP_END):   %08lx\n",
-                        fix_to_virt(FIX_BTMAP_END));
-
-                printk("FIX_BTMAP_END:       %d\n", FIX_BTMAP_END);
-                printk("FIX_BTMAP_BEGIN:     %d\n", FIX_BTMAP_BEGIN);
+                printk(KERN_WARNING "pgd %p != %p\n",
+                       pgd, early_ioremap_pgd(fix_to_virt(FIX_BTMAP_END)));
+                printk(KERN_WARNING "fix_to_virt(FIX_BTMAP_BEGIN): %08lx\n",
+                       fix_to_virt(FIX_BTMAP_BEGIN));
+                printk(KERN_WARNING "fix_to_virt(FIX_BTMAP_END):   %08lx\n",
+                       fix_to_virt(FIX_BTMAP_END));
+
+                printk(KERN_WARNING "FIX_BTMAP_END:       %d\n", FIX_BTMAP_END);
+                printk(KERN_WARNING "FIX_BTMAP_BEGIN:     %d\n",
+                       FIX_BTMAP_BEGIN);
         }
 }
 
@@ -265,7 +263,7 @@ void __init early_ioremap_clear(void)
         unsigned long *pgd;
 
         if (early_ioremap_debug)
-                printk("early_ioremap_clear()\n");
+                printk(KERN_DEBUG "early_ioremap_clear()\n");
 
         pgd = early_ioremap_pgd(fix_to_virt(FIX_BTMAP_BEGIN));
         *pgd = 0;
@@ -331,10 +329,10 @@ static int __init check_early_ioremap_leak(void)
                 return 0;
 
         printk(KERN_WARNING
-                "Debug warning: early ioremap leak of %d areas detected.\n",
-                        early_ioremap_nested);
+               "Debug warning: early ioremap leak of %d areas detected.\n",
+               early_ioremap_nested);
         printk(KERN_WARNING
-                "please boot with early_ioremap_debug and report the dmesg.\n");
+               "please boot with early_ioremap_debug and report the dmesg.\n");
         WARN_ON(1);
 
         return 1;
@@ -351,8 +349,8 @@ void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
 
         nesting = early_ioremap_nested;
         if (early_ioremap_debug) {
-                printk("early_ioremap(%08lx, %08lx) [%d] => ",
-                                phys_addr, size, nesting);
+                printk(KERN_DEBUG "early_ioremap(%08lx, %08lx) [%d] => ",
+                       phys_addr, size, nesting);
                 dump_stack();
         }
 
@@ -398,7 +396,7 @@ void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
         if (early_ioremap_debug)
                 printk(KERN_CONT "%08lx + %08lx\n", offset, fix_to_virt(idx0));
 
-        return (void*) (offset + fix_to_virt(idx0));
+        return (void *) (offset + fix_to_virt(idx0));
 }
 
 void __init early_iounmap(void *addr, unsigned long size)
@@ -413,7 +411,8 @@ void __init early_iounmap(void *addr, unsigned long size)
         WARN_ON(nesting < 0);
 
         if (early_ioremap_debug) {
-                printk("early_iounmap(%p, %08lx) [%d]\n", addr, size, nesting);
+                printk(KERN_DEBUG "early_iounmap(%p, %08lx) [%d]\n", addr,
+                       size, nesting);
                 dump_stack();
         }
 
diff --git a/arch/x86/mm/ioremap_64.c b/arch/x86/mm/ioremap_64.c
index a37556124c86..bd962cc636c5 100644
--- a/arch/x86/mm/ioremap_64.c
+++ b/arch/x86/mm/ioremap_64.c
@@ -1,6 +1,4 @@
 /*
- * arch/x86_64/mm/ioremap.c
- *
  * Re-map IO memory to kernel address space so that we can access it.
  * This is needed for high PCI addresses that aren't mapped in the
  * 640k-1MB IO memory area on PC's
@@ -33,9 +31,8 @@ EXPORT_SYMBOL(__phys_addr);
  * Fix up the linear direct mapping of the kernel to avoid cache attribute
  * conflicts.
  */
-static int
-ioremap_change_attr(unsigned long phys_addr, unsigned long size,
-                                        unsigned long flags)
+static int ioremap_change_attr(unsigned long phys_addr, unsigned long size,
+                               unsigned long flags)
 {
         int err = 0;
         if (phys_addr + size - 1 < (end_pfn_map << PAGE_SHIFT)) {
@@ -50,10 +47,12 @@ ioremap_change_attr(unsigned long phys_addr, unsigned long size,
                 if (!lookup_address(vaddr, &level))
                         return err;
                 /*
-                 * Must use a address here and not struct page because the phys addr
-                 * can be a in hole between nodes and not have an memmap entry.
+                 * Must use a address here and not struct page because
+                 * the phys addr can be a in hole between nodes and
+                 * not have an memmap entry.
                  */
-                err = change_page_attr_addr(vaddr,npages,MAKE_GLOBAL(__PAGE_KERNEL|flags));
+                err = change_page_attr_addr(vaddr,npages,
+                                            MAKE_GLOBAL(__PAGE_KERNEL|flags));
                 if (!err)
                         global_flush_tlb();
         }
@@ -61,10 +60,6 @@ ioremap_change_attr(unsigned long phys_addr, unsigned long size,
 }
 
 /*
- * Generic mapping function
- */
-
-/*
  * Remap an arbitrary physical address space into the kernel virtual
  * address space. Needed when the kernel wants to access high addresses
  * directly.
@@ -73,10 +68,11 @@ ioremap_change_attr(unsigned long phys_addr, unsigned long size,
  * have to convert them into an offset in a page-aligned mapping, but the
  * caller shouldn't need to know that small detail.
  */
-void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
+void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
+                        unsigned long flags)
 {
-        void * addr;
-        struct vm_struct * area;
+        void *addr;
+        struct vm_struct *area;
         unsigned long offset, last_addr;
         pgprot_t pgprot;
 
@@ -130,20 +126,19 @@ EXPORT_SYMBOL(__ioremap);
  * make bus memory CPU accessible via the readb/readw/readl/writeb/
  * writew/writel functions and the other mmio helpers. The returned
  * address is not guaranteed to be usable directly as a virtual
- * address. 
+ * address.
  *
  * This version of ioremap ensures that the memory is marked uncachable
  * on the CPU as well as honouring existing caching rules from things like
- * the PCI bus. Note that there are other caches and buffers on many 
+ * the PCI bus. Note that there are other caches and buffers on many
  * busses. In particular driver authors should read up on PCI writes
  *
  * It's useful if some control registers are in such an area and
  * write combining or read caching is not desirable:
- * 
+ *
  * Must be freed with iounmap.
  */
-
-void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
+void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size)
 {
         return __ioremap(phys_addr, size, _PAGE_PCD | _PAGE_PWT);
 }
@@ -159,13 +154,14 @@ void iounmap(volatile void __iomem *addr)
 {
         struct vm_struct *p, *o;
 
-        if (addr <= high_memory) 
-                return; 
+        if (addr <= high_memory)
+                return;
         if (addr >= phys_to_virt(ISA_START_ADDRESS) &&
-                addr < phys_to_virt(ISA_END_ADDRESS))
+            addr < phys_to_virt(ISA_END_ADDRESS))
                 return;
 
-        addr = (volatile void __iomem *)(PAGE_MASK & (unsigned long __force)addr);
+        addr = (volatile void __iomem *)
+                (PAGE_MASK & (unsigned long __force)addr);
         /* Use the vm area unlocked, assuming the caller
            ensures there isn't another iounmap for the same address
            in parallel. Reuse of the virtual address is prevented by
@@ -179,7 +175,7 @@ void iounmap(volatile void __iomem *addr)
         read_unlock(&vmlist_lock);
 
         if (!p) {
-                printk("iounmap: bad address %p\n", addr);
+                printk(KERN_ERR "iounmap: bad address %p\n", addr);
                 dump_stack();
                 return;
         }
@@ -191,7 +187,7 @@ void iounmap(volatile void __iomem *addr)
         /* Finally remove it */
         o = remove_vm_area((void *)addr);
         BUG_ON(p != o || o == NULL);
-        kfree(p); 
+        kfree(p);
 }
 EXPORT_SYMBOL(iounmap);