diff options
Diffstat (limited to 'arch/x86/mm')
| -rw-r--r-- | arch/x86/mm/ioremap.c | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 2c3fa718950..4e21231a5ce 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -70,25 +70,12 @@ int page_is_ram(unsigned long pagenr) * Fix up the linear direct mapping of the kernel to avoid cache attribute * conflicts. */ -static int ioremap_change_attr(unsigned long paddr, unsigned long size, +static int ioremap_change_attr(unsigned long vaddr, unsigned long size, enum ioremap_mode mode) { - unsigned long vaddr = (unsigned long)__va(paddr); unsigned long nrpages = size >> PAGE_SHIFT; - unsigned int level; int err; - /* No change for pages after the last mapping */ - if ((paddr + size - 1) >= (max_pfn_mapped << PAGE_SHIFT)) - return 0; - - /* - * If there is no identity map for this address, - * change_page_attr_addr is unnecessary - */ - if (!lookup_address(vaddr, &level)) - return 0; - switch (mode) { case IOR_MODE_UNCACHED: default: @@ -169,7 +156,7 @@ static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size, return NULL; } - if (ioremap_change_attr(phys_addr, size, mode) < 0) { + if (ioremap_change_attr(vaddr, size, mode) < 0) { vunmap(area->addr); return NULL; } |