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authorIngo Molnar <mingo@elte.hu>2009-02-28 14:09:27 +0100
committerIngo Molnar <mingo@elte.hu>2009-02-28 14:22:44 +0100
commit92b9af9e4f144535c65aee673cfad309f25fa465 (patch)
treee595675e24fba414396dd1efcef380bfa932beaa /arch/x86/mm/iomap_32.c
parent778ef1e6cbb049c9bcbf405936ee6f2b6e451892 (diff)
x86: i915 needs pgprot_writecombine() and is_io_mapping_possible()
Impact: build fix Theodore Ts reported that the i915 driver needs these symbols: ERROR: "pgprot_writecombine" [drivers/gpu/drm/i915/i915.ko] undefined! ERROR: "is_io_mapping_possible" [drivers/gpu/drm/i915/i915.ko] undefined! Reported-by: Theodore Ts'o <tytso@mit.edu> wrote: Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/mm/iomap_32.c')
-rw-r--r--arch/x86/mm/iomap_32.c15
1 files changed, 4 insertions, 11 deletions
diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c
index 6c2b1af1692..04102d42ff4 100644
--- a/arch/x86/mm/iomap_32.c
+++ b/arch/x86/mm/iomap_32.c
@@ -20,23 +20,16 @@
#include <asm/pat.h>
#include <linux/module.h>
-#ifdef CONFIG_X86_PAE
-int
-is_io_mapping_possible(resource_size_t base, unsigned long size)
-{
- return 1;
-}
-#else
-int
-is_io_mapping_possible(resource_size_t base, unsigned long size)
+int is_io_mapping_possible(resource_size_t base, unsigned long size)
{
+#ifndef CONFIG_X86_PAE
/* There is no way to map greater than 1 << 32 address without PAE */
if (base + size > 0x100000000ULL)
return 0;
-
+#endif
return 1;
}
-#endif
+EXPORT_SYMBOL_GPL(is_io_mapping_possible);
/* Map 'pfn' using fixed map 'type' and protections 'prot'
*/