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Device megapatch 5/6:

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Remove the unused second argument from udev2dev().

Convert all remaining users of makedev() to use udev2dev().  The
semantic difference is that udev2dev() will only locate a pre-existing
dev_t, it will not line makedev() create a new one.

Apart from the tiny well controlled windown in D_PSEUDO drivers,
there should no longer be any "anonymous" dev_t's in the system
now, only dev_t's created with make_dev() and make_dev_alias()
This commit is contained in:
Poul-Henning Kamp 2004-02-21 21:32:15 +00:00
parent dc08ffec87
commit 816d62bbb9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=126081
10 changed files with 25 additions and 25 deletions
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3
sys/coda/coda_venus.c
View File

@ -212,8 +212,7 @@ venus_open(void *mdp, CodaFid *fid, int flag,
error = coda_call(mdp, Isize, &Osize, (char *)inp);
if (!error) {
/* 5/11 *dev = udev2dev(outp->dev, 2); */
*dev = udev2dev(outp->dev, 0);
*dev = udev2dev(outp->dev);
*inode = outp->inode;
}

8
sys/compat/linux/linux_stats.c
View File

@ -76,7 +76,7 @@ newstat_copyout(struct stat *buf, void *ubuf)
* in FreeBSD but block devices under Linux.
*/
if (S_ISCHR(tbuf.st_mode) &&
(dev = udev2dev(buf->st_rdev, 0)) != NODEV) {
(dev = udev2dev(buf->st_rdev)) != NODEV) {
cdevsw = devsw(dev);
if (cdevsw != NULL && (cdevsw->d_flags & D_DISK)) {
tbuf.st_mode &= ~S_IFMT;
@ -365,8 +365,8 @@ linux_ustat(struct thread *td, struct linux_ustat_args *args)
* dev_t returned from previous syscalls. Just return a bzeroed
* ustat in that case.
*/
dev = makedev(args->dev >> 8, args->dev & 0xFF);
if (vfinddev(dev, VCHR, &vp)) {
dev = udev2dev(makeudev(args->dev >> 8, args->dev & 0xFF));
if (dev != NODEV && vfinddev(dev, VCHR, &vp)) {
if (vp->v_mount == NULL)
return (EINVAL);
#ifdef MAC
@ -414,7 +414,7 @@ stat64_copyout(struct stat *buf, void *ubuf)
* in FreeBSD but block devices under Linux.
*/
if (S_ISCHR(lbuf.st_mode) &&
(dev = udev2dev(buf->st_rdev, 0)) != NODEV) {
(dev = udev2dev(buf->st_rdev)) != NODEV) {
cdevsw = devsw(dev);
if (cdevsw != NULL && (cdevsw->d_flags & D_DISK)) {
lbuf.st_mode &= ~S_IFMT;

2
sys/dev/cx/if_cx.c
View File

@ -3105,7 +3105,7 @@ static int cx_modevent (module_t mod, int type, void *unused)
static int load_count = 0;
struct cdevsw *cdsw;
dev = makedev (CDEV_MAJOR, 0);
dev = udev2dev (makeudev(CDEV_MAJOR, 0));
switch (type) {
case MOD_LOAD:
if ((cdsw = devsw (dev)) && cdsw->d_maj == CDEV_MAJOR) {

4
sys/dev/raidframe/rf_freebsdkintf.c
View File

@ -3144,8 +3144,8 @@ raid_getcomponentsize(RF_Raid_t *raidPtr, RF_RowCol_t row, RF_RowCol_t col)
raidPtr->Disks[row][col].numBlocks = mediasize / secsize;
raidPtr->raid_cinfo[row][col].ci_vp = vp;
raidPtr->raid_cinfo[row][col].ci_dev = udev2dev(va.va_rdev, 0);
raidPtr->Disks[row][col].dev = udev2dev(va.va_rdev, 0);
raidPtr->raid_cinfo[row][col].ci_dev = udev2dev(va.va_rdev);
raidPtr->Disks[row][col].dev = udev2dev(va.va_rdev);
/* we allow the user to specify that only a
fraction of the disks should be used this is

2
sys/dev/snp/snp.c
View File

@ -500,7 +500,7 @@ snpioctl(dev, cmd, data, flags, td)
snp = dev->si_drv1;
switch (cmd) {
case SNPSTTY:
tdev = udev2dev(*((udev_t *)data), 0);
tdev = udev2dev(*((udev_t *)data));
if (tdev == NODEV)
return (snp_down(snp));

2
sys/dev/sound/midi/midi.h
View File

@ -259,7 +259,7 @@ struct _mididev_info {
#define MIDIUNIT(x) ((MIDIMINOR(x) & 0x000000f0) >> 4)
#define MIDIDEV(x) (MIDIMINOR(x) & 0x0000000f)
#define MIDIMKMINOR(u, d) (((u) & 0x0f) << 4 | ((d) & 0x0f))
#define MIDIMKDEV(m, u, d) (makedev((m), MIDIMKMINOR((u), (d))))
#define MIDIMKDEV(m, u, d) (udev2dev(makeudev((m), MIDIMKMINOR((u), (d)))))
/*
* see if the device is configured

3
sys/fs/coda/coda_venus.c
View File

@ -212,8 +212,7 @@ venus_open(void *mdp, CodaFid *fid, int flag,
error = coda_call(mdp, Isize, &Osize, (char *)inp);
if (!error) {
/* 5/11 *dev = udev2dev(outp->dev, 2); */
*dev = udev2dev(outp->dev, 0);
*dev = udev2dev(outp->dev);
*inode = outp->inode;
}

21
sys/kern/kern_conf.c
View File

@ -68,6 +68,8 @@ static LIST_HEAD(, cdev) dev_free;
static int free_devt;
SYSCTL_INT(_debug, OID_AUTO, free_devt, CTLFLAG_RW, &free_devt, 0, "");
static dev_t makedev(int x, int y);
int
nullop(void)
{
@ -244,7 +246,7 @@ allocdev(void)
return (si);
}
dev_t
static dev_t
makedev(int x, int y)
{
struct cdev *si;
@ -294,18 +296,19 @@ dev2udev(dev_t x)
}
dev_t
udev2dev(udev_t x, int b)
udev2dev(udev_t udev)
{
struct cdev *si;
int hash;
if (x == NOUDEV)
return (NODEV);
switch (b) {
case 0:
return (makedev(umajor(x), uminor(x)));
default:
Debugger("udev2dev(...,X)");
if (udev == NOUDEV)
return (NODEV);
hash = udev % DEVT_HASH;
LIST_FOREACH(si, &dev_hash[hash], si_hash) {
if (si->si_udev == udev)
return (si);
}
return (NODEV);
}
int

2
sys/kern/vfs_subr.c
View File

@ -1807,7 +1807,7 @@ addaliasu(nvp, nvp_rdev)
return (nvp);
if (nvp->v_type != VCHR)
panic("addaliasu on non-special vnode");
dev = udev2dev(nvp_rdev, 0);
dev = udev2dev(nvp_rdev);
/*
* Check to see if we have a bdevvp vnode with no associated
* filesystem. If so, we want to associate the filesystem of

3
sys/sys/systm.h
View File

@ -323,9 +323,8 @@ void wakeup_one(void *chan) __nonnull(1);
int major(dev_t x);
int minor(dev_t x);
dev_t makedev(int x, int y);
udev_t dev2udev(dev_t x);
dev_t udev2dev(udev_t x, int b);
dev_t udev2dev(udev_t x);
int uminor(udev_t dev);
int umajor(udev_t dev);
udev_t makeudev(int x, int y);