The code in efi.c uses early_memremap(), but relies on a transitive
include rather than including asm/early_ioremap.h directly.
Unfortunately, this header does not exist on ia64, so it cannot be
included directly.
Commit f7d924894265 ("arm64/efi: refactor EFI init and runtime code
for reuse by 32-bit ARM") attempted to work around this by including
asm/efi.h, which transitively includes asm/early_ioremap.h on most
architectures. However, since asm/efi.h does not exist on ia64 either,
this is not much of an improvement.
So instead, just include asm/early_ioremap.h directly, unless CONFIG_IA64
is defined.
Fixes: f7d924894265 ("arm64/efi: refactor EFI init and runtime code for reuse by 32-bit ARM")
Cc: Will Deacon <will.deacon@xxxxxxx>
Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
---
drivers/firmware/efi/efi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index cffa89b3317b..53f71177824f 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -25,7 +25,9 @@
#include <linux/io.h>
#include <linux/platform_device.h>
-#include <asm/efi.h>
+#ifndef CONFIG_IA64
+#include <asm/early_ioremap.h>
+#endif
struct efi __read_mostly efi = {
.mps = EFI_INVALID_TABLE_ADDR,
--
1.9.1
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