xv6

commit b8912d999f918bd755699099a339d193eb593e8b
parent f9a06440ab746256ecbf9fccdb251487cb2c29f7
Author: Russ Cox <rsc@swtch.com>
Date:   Sat, 11 Jul 2009 19:26:29 -0700

mmu.h: unused SEG_NULL

Diffstat:
M
mmu.h
 | 
3
---

1 file changed, 0 insertions(+), 3 deletions(-)
diff --git a/mmu.h b/mmu.h
@@ -41,9 +41,6 @@ struct segdesc {
   uint base_31_24 : 8; // High bits of segment base address
 };
 
-// Null segment
-#define SEG_NULL        (struct segdesc){ 0,0,0,0,0,0,0,0,0,0,0,0,0 }
-
 // Normal segment
 #define SEG(type, base, lim, dpl) (struct segdesc)                      \
 { ((lim) >> 12) & 0xffff, (base) & 0xffff, ((base) >> 16) & 0xff,       \