[PATCH] uefi: uefirtvariable: use sizeof() for finding the bit size of long integer

[Keng-Yu Lin]

The size of long integer can vary on different architectures.

The patch uses sizeof() to find the bit size of the long integer rather than
a fixed value.

This also matches the definition in Linux kernel's efi.h.

Signed-off-by: Keng-Yu Lin <kengyu at canonical.com>
---
 src/uefi/uefirtvariable/uefirtvariable.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/uefi/uefirtvariable/uefirtvariable.c b/src/uefi/uefirtvariable/uefirtvariable.c
index 1599c5b..0459160 100644
--- a/src/uefi/uefirtvariable/uefirtvariable.c
+++ b/src/uefi/uefirtvariable/uefirtvariable.c
@@ -40,8 +40,10 @@
 						0xDD, 0xB7, 0x11, 0xD0, 0x6E} \
 }
 
+#define BITS_PER_LONG		(sizeof(long) * 8)
+
 #define EFI_SUCCESS		0
-#define EFI_NOT_FOUND		(14 | (1UL << 63))
+#define EFI_NOT_FOUND		(14 | (1UL << (BITS_PER_LONG-1)))
 
 #define MAX_DATA_LENGTH		1024
 
-- 
1.7.9.5