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authored <ed@FreeBSD.org>2008-09-27 08:51:18 +0000
committered <ed@FreeBSD.org>2008-09-27 08:51:18 +0000
commit4efdef565f9a0ca3468534f97c6ac4aaaf747c9a (patch)
treedd0035910760a440d495b23940f57a42ed24ca85 /sys/ia64
parentd720932e5974ce75bf983cc61010a6eb70f94b86 (diff)
downloadFreeBSD-src-4efdef565f9a0ca3468534f97c6ac4aaaf747c9a.zip
FreeBSD-src-4efdef565f9a0ca3468534f97c6ac4aaaf747c9a.tar.gz
Replace all calls to minor() with dev2unit().
After I removed all the unit2minor()/minor2unit() calls from the kernel yesterday, I realised calling minor() everywhere is quite confusing. Character devices now only have the ability to store a unit number, not a minor number. Remove the confusion by using dev2unit() everywhere. This commit could also be considered as a bug fix. A lot of drivers call minor(), while they should actually be calling dev2unit(). In -CURRENT this isn't a problem, but it turns out we never had any problem reports related to that issue in the past. I suspect not many people connect more than 256 pieces of the same hardware. Reviewed by: kib
Diffstat (limited to 'sys/ia64')
-rw-r--r--sys/ia64/ia64/mem.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/ia64/ia64/mem.c b/sys/ia64/ia64/mem.c
index 6c5cbe7..ab213d7 100644
--- a/sys/ia64/ia64/mem.c
+++ b/sys/ia64/ia64/mem.c
@@ -94,7 +94,7 @@ memrw(struct cdev *dev, struct uio *uio, int flags)
continue;
}
- if (minor(dev) == CDEV_MINOR_MEM) {
+ if (dev2unit(dev) == CDEV_MINOR_MEM) {
v = uio->uio_offset;
kmemphys:
/* Allow reads only in RAM. */
@@ -111,7 +111,7 @@ kmemphys:
error = uiomove((caddr_t)IA64_PHYS_TO_RR7(v), c, uio);
continue;
}
- else if (minor(dev) == CDEV_MINOR_KMEM) {
+ else if (dev2unit(dev) == CDEV_MINOR_KMEM) {
v = uio->uio_offset;
if (v >= IA64_RR_BASE(6)) {
@@ -156,7 +156,7 @@ memmmap(struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int prot)
* could be transient and hence incorrect or invalid at
* a later time.
*/
- if (minor(dev) != CDEV_MINOR_MEM)
+ if (dev2unit(dev) != CDEV_MINOR_MEM)
return (-1);
/*
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