io-mapping.h: s/PAGE_KERNEL_IO/PAGE_KERNEL/

PAGE_KERNEL_IO is an x86-ism. Though it is used to define the pgprot_t
used for the iomapped region, it itself is just PAGE_KERNEL. On all
other arches, PAGE_KERNEL_IO is undefined so in a general header we must
refrain from using it.

v2: include pgtable for pgprot_combine()

Reported-by: Stephen Rothwell <[email protected]>
Fixes: cafaf14a5d8f ("io-mapping: Always create a struct to hold metadata about the io-mapping")
Signed-off-by: Chris Wilson <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: [email protected]
Signed-off-by: Daniel Vetter <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]

diff --git a/include/linux/io-mapping.h b/include/linux/io-mapping.h
index b4c4b5c4216dd5105a253dcf269097a6eff9023b..a87dd7fffc0af461d16d325b010903e89e237289 100644 (file)
--- a/include/linux/io-mapping.h
+++ b/include/linux/io-mapping.h
@@ -112,7 +112,7 @@ io_mapping_unmap(void __iomem *vaddr)
 #else
 
 #include <linux/uaccess.h>
-#include <asm/pgtable_types.h>
+#include <asm/pgtable.h>
 
 /* Create the io_mapping object*/
 static inline struct io_mapping *
@@ -123,7 +123,7 @@ io_mapping_init_wc(struct io_mapping *iomap,
        iomap->base = base;
        iomap->size = size;
        iomap->iomem = ioremap_wc(base, size);
-       iomap->prot = pgprot_writecombine(PAGE_KERNEL_IO);
+       iomap->prot = pgprot_writecombine(PAGE_KERNEL);
 
        return iomap;
 }