PROBLEM: Bug in drivers/char/mem.c

[Martin]

[1.] Bug in drivers/char/mem.c
[2.] An if statement (#if !defined) has apparently been left out of 
drivers/char/mem.c. This breaks the build on the m68k architecture.
[3.] Kernel 2.4.1
[4.] Oops: Not applicable
[6.] Try building a kernel on m68k.
[7.] Env: not applicable.
[7.1.] Software (add the output of the ver_linux script here)
Linux quadra 2.2.10 #13 Sat Feb 5 15:56:35 CET 2000 m68k unknown
Kernel modules         2.3.11
Gnu C                  2.95.2
Gnu Make               3.79.1
Binutils               2.9.5.0.37
Linux C Library        2.1.3
Dynamic linker         ldd: version 1.9.11
Procps                 2.0.6
Mount                  2.10f
Net-tools              2.05
Console-tools          0.2.3
Sh-utils               2.0
Modules Loaded        

[7.2.] Processor information (from /proc/cpuinfo):
drink@quadra:/home/src/linux/drivers/char$ cat /proc/cpuinfo
CPU:            68040
MMU:            68040
FPU:            68040
Clocking:       33.1MHz
BogoMips:       22.11
Calibration:    11059200 loops

[7.3.] Module information (from /proc/modules):
none

[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)
none

[7.5.] PCI information ('lspci -vvv' as root)
nubus

[7.6.] SCSI information (from /proc/scsi/scsi)
drink@quadra:/home/src/linux/drivers/char$ cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: SEAGATE  Model: ST11200N         Rev: 8334
  Type:   Direct-Access                    ANSI SCSI revision: 02

[7.7.] Other information that might be relevant to the problem
The error is at line 598. The code normally looks like so:
       {3, "null",    S_IRUGO | S_IWUGO,           &null_fops},
       {4, "port",    S_IRUSR | S_IWUSR | S_IRGRP, &port_fops},
       {5, "zero",    S_IRUGO | S_IWUGO,           &zero_fops},

I changed it to look like this instead:

       {3, "null",    S_IRUGO | S_IWUGO,           &null_fops},
#if !defined(__mc68000__)
       {4, "port",    S_IRUSR | S_IWUSR | S_IRGRP, &port_fops},
#endif
       {5, "zero",    S_IRUGO | S_IWUGO,           &zero_fops},

This is probably not the right way to fix this. However, it was the only 
way at my immediate disposal with my limited coding skill[sz]. If 
someone has a better solution, please apply it.