From: deraadt <deraadt@openbsd.org>
Date: Thu, 30 Nov 1995 23:03:46 +0000 (+0000)
Subject: properly catch cases where buffers are on the kstack, from hannken@eis.cs.tu-bs.de
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=6991afbb97baba23bc595732913012daeffca3df;p=openbsd

properly catch cases where buffers are on the kstack, from hannken@eis.cs.tu-bs.de
---

diff --git a/sys/dev/isa/aha.c b/sys/dev/isa/aha.c
index 1049d677dfe..323bdd5d285 100644
--- a/sys/dev/isa/aha.c
+++ b/sys/dev/isa/aha.c
@@ -78,8 +78,7 @@
 #ifdef i386
 #include <machine/vmparam.h>
 #define VOLATILE_XS(xs) \
-	((xs)->datalen > 0 && \
-	((vm_offset_t)((xs)->data) < VM_MIN_KERNEL_ADDRESS) && \
+	((xs)->datalen > 0 && (xs)->bp == NULL && \
 	((xs)->flags & SCSI_POLL) == 0)
 #else
 #define VOLATILE_XS(xs)	0
diff --git a/sys/dev/isa/aha1542.c b/sys/dev/isa/aha1542.c
index 1049d677dfe..323bdd5d285 100644
--- a/sys/dev/isa/aha1542.c
+++ b/sys/dev/isa/aha1542.c
@@ -78,8 +78,7 @@
 #ifdef i386
 #include <machine/vmparam.h>
 #define VOLATILE_XS(xs) \
-	((xs)->datalen > 0 && \
-	((vm_offset_t)((xs)->data) < VM_MIN_KERNEL_ADDRESS) && \
+	((xs)->datalen > 0 && (xs)->bp == NULL && \
 	((xs)->flags & SCSI_POLL) == 0)
 #else
 #define VOLATILE_XS(xs)	0