Merge branch 'linus' into x86/mm

x86/mm is on 32-rc4 and missing the spinlock namespace changes which
are needed for further commits into this topic.

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

1 files changed, 12 insertions, 38 deletions

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 1bf9e08ed733..e404ffe30210 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -133,8 +133,7 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
                                 (unsigned long long)phys_addr,
                                 (unsigned long long)(phys_addr + size),
                                 prot_val, new_prot_val);
-                        free_memtype(phys_addr, phys_addr + size);
-                        return NULL;
+                        goto err_free_memtype;
                 }
                 prot_val = new_prot_val;
         }
@@ -160,26 +159,25 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
          */
         area = get_vm_area_caller(size, VM_IOREMAP, caller);
         if (!area)
-                return NULL;
+                goto err_free_memtype;
         area->phys_addr = phys_addr;
         vaddr = (unsigned long) area->addr;
 
-        if (kernel_map_sync_memtype(phys_addr, size, prot_val)) {
-                free_memtype(phys_addr, phys_addr + size);
-                free_vm_area(area);
-                return NULL;
-        }
+        if (kernel_map_sync_memtype(phys_addr, size, prot_val))
+                goto err_free_area;
 
-        if (ioremap_page_range(vaddr, vaddr + size, phys_addr, prot)) {
-                free_memtype(phys_addr, phys_addr + size);
-                free_vm_area(area);
-                return NULL;
-        }
+        if (ioremap_page_range(vaddr, vaddr + size, phys_addr, prot))
+                goto err_free_area;
 
         ret_addr = (void __iomem *) (vaddr + offset);
         mmiotrace_ioremap(unaligned_phys_addr, unaligned_size, ret_addr);
 
         return ret_addr;
+err_free_area:
+        free_vm_area(area);
+err_free_memtype:
+        free_memtype(phys_addr, phys_addr + size);
+        return NULL;
 }
 
 /**
@@ -246,30 +244,6 @@ void __iomem *ioremap_cache(resource_size_t phys_addr, unsigned long size)
 }
 EXPORT_SYMBOL(ioremap_cache);
 
-static void __iomem *ioremap_default(resource_size_t phys_addr,
-                                        unsigned long size)
-{
-        unsigned long flags;
-        void __iomem *ret;
-        int err;
-
-        /*
-         * - WB for WB-able memory and no other conflicting mappings
-         * - UC_MINUS for non-WB-able memory with no other conflicting mappings
-         * - Inherit from confliting mappings otherwise
-         */
-        err = reserve_memtype(phys_addr, phys_addr + size,
-                                _PAGE_CACHE_WB, &flags);
-        if (err < 0)
-                return NULL;
-
-        ret = __ioremap_caller(phys_addr, size, flags,
-                               __builtin_return_address(0));
-
-        free_memtype(phys_addr, phys_addr + size);
-        return ret;
-}
-
 void __iomem *ioremap_prot(resource_size_t phys_addr, unsigned long size,
                                 unsigned long prot_val)
 {
@@ -345,7 +319,7 @@ void *xlate_dev_mem_ptr(unsigned long phys)
         if (page_is_ram(start >> PAGE_SHIFT))
                 return __va(phys);
 
-        addr = (void __force *)ioremap_default(start, PAGE_SIZE);
+        addr = (void __force *)ioremap_cache(start, PAGE_SIZE);
         if (addr)
                 addr = (void *)((unsigned long)addr | (phys & ~PAGE_MASK));