From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Mon, 18 Feb 2008 19:12:48 +0000 (-0800)
Subject: KVM: x86 emulator: add ad_mask static inline
X-Git-Tag: v2.6.26-rc1~1028^2~113
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ddcb2885e2902ebfc422eccd763b02c5ee22d68b;p=karo-tx-linux.git

KVM: x86 emulator: add ad_mask static inline

Replaces open-coded mask calculation in macros.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---

diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c
index 22900f70172b..f6f6544cf747 100644
--- a/arch/x86/kvm/x86_emulate.c
+++ b/arch/x86/kvm/x86_emulate.c
@@ -480,10 +480,15 @@ static u16 group2_table[] = {
 	(_type)_x;							\
 })
 
+static inline unsigned long ad_mask(struct decode_cache *c)
+{
+	return (1UL << (c->ad_bytes << 3)) - 1;
+}
+
 /* Access/update address held in a register, based on addressing mode. */
 #define address_mask(reg)						\
 	((c->ad_bytes == sizeof(unsigned long)) ? 			\
-		(reg) :	((reg) & ((1UL << (c->ad_bytes << 3)) - 1)))
+		(reg) :	((reg) & ad_mask(c)))
 #define register_address(base, reg)                                     \
 	((base) + address_mask(reg))
 #define register_address_increment(reg, inc)                            \
@@ -494,9 +499,9 @@ static u16 group2_table[] = {
 			(reg) += _inc;					\
 		else							\
 			(reg) = ((reg) & 				\
-				 ~((1UL << (c->ad_bytes << 3)) - 1)) |	\
+				 ~ad_mask(c)) |	\
 				(((reg) + _inc) &			\
-				 ((1UL << (c->ad_bytes << 3)) - 1));	\
+				 ad_mask(c));	\
 	} while (0)
 
 #define JMP_REL(rel) 							\