diff options
| author | bde <bde@FreeBSD.org> | 1997-01-27 06:24:10 +0000 |
|---|---|---|
| committer | bde <bde@FreeBSD.org> | 1997-01-27 06:24:10 +0000 |
| commit | 442be6986b1b00d2b54b829891641b2fd9541741 (patch) | |
| tree | b699eebc6e8f237febea20714a8e197bebec99e4 /etc/MAKEDEV | |
| parent | 2d0830121247d1a928562b2c99b212d0632ba12c (diff) | |
| download | FreeBSD-src-442be6986b1b00d2b54b829891641b2fd9541741.zip FreeBSD-src-442be6986b1b00d2b54b829891641b2fd9541741.tar.gz | |
Use shifts instead of multiplications and `|' instead of `+' to simplify
dkminor(). Use $((1 << 29)) instead of a mysterious decimal number for
$scisctl. Use dkminor() instead of repeating part of it for special cases.
Shortened some long lines.
Diffstat (limited to 'etc/MAKEDEV')
| -rw-r--r-- | etc/MAKEDEV | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/etc/MAKEDEV b/etc/MAKEDEV index 73c884f..48c12c8 100644 --- a/etc/MAKEDEV +++ b/etc/MAKEDEV @@ -134,7 +134,7 @@ dkitos() { # Convert disk (type, unit, slice, partition) to minor number dkminor() { - echo $((512 * 65536 * $1 + $2 / 32 * 2097152 + $2 % 32 * 8 + 65536 * $3 + $4)) + echo $(($1 << 25 | ($2 / 32) << 21 | ($2 % 32) << 3 | $3 << 16 | $4)) } # Convert the last character of a tty name to a minor number. @@ -161,7 +161,7 @@ dkcompatslice=0 dkrawslice=1 # Control bit for SCSI -scsictl=536870912 +scsictl=$((1 << 29)) # Standard umasks disk_umask=037 # allow group operator to read disks @@ -428,7 +428,8 @@ od*|sd*|vn*|wd*) case $name in od|sd) rm -f r${name}${unit}.ctl - mknod r${name}${unit}.ctl c $chr `expr $unit / 32 '*' 2097152 + $unit % 32 '*' 8 + $scsictl ` + minor=`dkminor 0 $unit 0 0` + mknod r${name}${unit}.ctl c $chr $(($minor | $scsictl)) chmod 600 r${name}${unit}.ctl ;; esac @@ -448,7 +449,8 @@ ccd*) case $unit in [0-9]|[0-9][0-9]|[0-4][0-9][0-9]|50[0-9]|51[0-1]) rm -f r${name}${unit}.ctl - mknod r${name}${unit}.ctl c $chr `expr $unit / 32 '*' 2097152 + $unit % 32 '*' 8 + $scsictl ` + minor=`dkminor 0 $unit 0 0` + mknod r${name}${unit}.ctl c $chr $(($minor | $scsictl)) chmod 600 r${name}${unit}.ctl for part in 0 1 2 3 4 5 6 7 do |
