x86 boot: x86_64 efi compiler warning fix

Fix a compiler warning.  Rather than always casting a u32 to a pointer
(which generates a warning on x86_64 systems) instead separate the
x86_32 and x86_64 assignments entirely with ifdefs.  Until other recent
changes to this code, it used to have x86_64 separated like this.

Signed-off-by: Paul Jackson <pj@sgi.com>
Cc: "Yinghai Lu" <yhlu.kernel@gmail.com>
Cc: "Jack Steiner" <steiner@sgi.com>
Cc: "Mike Travis" <travis@sgi.com>
Cc: "Huang
Cc: Ying" <ying.huang@intel.com>
Cc: "Andi Kleen" <andi@firstfloor.org>
Cc: "Andrew Morton" <akpm@linux-foundation.org>
Cc: Paul Jackson <pj@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 9 insertions, 5 deletions

diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index 473c89fe5073..a03ca36a302c 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -242,9 +242,11 @@ void __init efi_reserve_early(void)
 {
         unsigned long pmap;
 
+#ifdef CONFIG_X86_32
         pmap = boot_params.efi_info.efi_memmap;
-#ifdef CONFIG_X86_64
-        pmap += (__u64)boot_params.efi_info.efi_memmap_hi << 32;
+#else
+        pmap = (boot_params.efi_info.efi_memmap |
+                ((__u64)boot_params.efi_info.efi_memmap_hi<<32));
 #endif
         memmap.phys_map = (void *)pmap;
         memmap.nr_map = boot_params.efi_info.efi_memmap_size /
@@ -284,10 +286,12 @@ void __init efi_init(void)
         int i = 0;
         void *tmp;
 
+#ifdef CONFIG_X86_32
         efi_phys.systab = (efi_system_table_t *)boot_params.efi_info.efi_systab;
-#ifdef CONFIG_X86_64
-        efi_phys.systab = (void *)efi_phys.systab +
-                ((__u64)boot_params.efi_info.efi_systab_hi<<32);
+#else
+        efi_phys.systab = (efi_system_table_t *)
+                (boot_params.efi_info.efi_systab |
+                 ((__u64)boot_params.efi_info.efi_systab_hi<<32));
 #endif
 
         efi.systab = early_ioremap((unsigned long)efi_phys.systab,