Subject: port-mac68k/11566: unnecessary kernel dependency on serial driver
To: None <gnats-bugs@gnats.netbsd.org>
From: Chris Baird <cjb@brushtail.apana.org.au>
List: netbsd-bugs
Date: 11/25/2000 18:13:15
>Number:         11566
>Category:       port-mac68k
>Synopsis:       unnecessary kernel dependency on serial driver
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    port-mac68k-maintainer
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Sat Nov 25 18:13:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator:     Chris Baird
>Release:        1.5_BETA
>Organization:
Australian Public Access Network Association
>Environment:
System: NetBSD skunk.apana.org.au 1.5_BETA NetBSD 1.5_BETA (SKUNK) #6: Sat Nov 25 12:36:21 EST 2000     root@skunk.apana.org.au:/usr/src/sys/arch/mac68k/compile/SKUNK mac68k

>Description:

As of 1.5_BETA, a single global variable declared by the serial driver
prevents building mac68k kernels without serial support.

>How-To-Repeat:

Attempt to build a kernel without the zsc/zstty serial device.

>Fix:

My chop and hack solution was to move the declaration of the offending
variable to a more "global" location. Something along the lines of...

--- ./sys/arch/mac68k/dev/zs.c	Sat Nov 25 18:03:28 2000
+++ /sys/arch/mac68k/dev/zs.c	Sat Nov 25 18:04:46 2000
@@ -144,5 +144,5 @@
 dev_t	mac68k_zsdev;
 /* Mac stuff */
-volatile unsigned char *sccA = 0;
+extern  volatile unsigned char *sccA = 0;
 int	zs_cn_check_speed __P((int bps));

--- ./sys/arch/mac68k/mac68k/machdep.c	Sat Nov 25 18:10:24 2000
+++ /sys/arch/mac68k/mac68k/machdep.c	Sat Nov 25 18:11:34 2000
@@ -156,2 +156,3 @@
 u_long	IOBase;
+volatile unsigned char *sccA = 0;


>Release-Note:
>Audit-Trail:
>Unformatted: