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-rw-r--r--drivers/base/bus.c5
-rw-r--r--drivers/block/as-iosched.c8
-rw-r--r--drivers/block/deadline-iosched.c8
-rw-r--r--drivers/block/genhd.c25
-rw-r--r--drivers/block/ioctl.c74
-rw-r--r--drivers/block/ll_rw_blk.c111
-rw-r--r--drivers/block/loop.c81
-rw-r--r--drivers/block/pktcdvd.c36
-rw-r--r--drivers/bluetooth/hci_ldisc.c2
-rw-r--r--drivers/char/amiserial.c18
-rw-r--r--drivers/char/n_hdlc.c2
-rw-r--r--drivers/char/n_r3964.c2
-rw-r--r--drivers/char/tty_io.c37
-rw-r--r--drivers/char/watchdog/Kconfig10
-rw-r--r--drivers/char/watchdog/Makefile1
-rw-r--r--drivers/char/watchdog/wdrtas.c696
-rw-r--r--drivers/firmware/pcdp.c11
-rw-r--r--drivers/firmware/pcdp.h2
-rw-r--r--drivers/ide/ide-cd.c89
-rw-r--r--drivers/ide/ide-disk.c3
-rw-r--r--drivers/ide/ide-floppy.c6
-rw-r--r--drivers/ide/ide-probe.c8
-rw-r--r--drivers/input/serio/serport.c2
-rw-r--r--drivers/md/dm-ioctl.c14
-rw-r--r--drivers/net/appletalk/ltpc.c6
-rw-r--r--drivers/net/e1000/e1000_main.c1
-rw-r--r--drivers/net/hamradio/6pack.c2
-rw-r--r--drivers/net/hamradio/mkiss.c2
-rw-r--r--drivers/net/irda/irtty-sir.c2
-rw-r--r--drivers/net/ppp_async.c2
-rw-r--r--drivers/net/ppp_synctty.c2
-rw-r--r--drivers/net/slip.c2
-rw-r--r--drivers/net/wan/x25_asy.c2
-rw-r--r--drivers/net/wireless/strip.c2
-rw-r--r--drivers/parport/parport_pc.c4
-rw-r--r--drivers/parport/parport_serial.c5
-rw-r--r--drivers/parport/probe.c18
-rw-r--r--drivers/pcmcia/cs.c11
-rw-r--r--drivers/pcmcia/ti113x.h167
-rw-r--r--drivers/pcmcia/yenta_socket.c60
-rw-r--r--drivers/scsi/dpt_i2o.c17
-rw-r--r--drivers/serial/8250.c54
-rw-r--r--drivers/serial/8250.h3
-rw-r--r--drivers/serial/sn_console.c1
-rw-r--r--drivers/usb/core/hcd.c2
-rw-r--r--drivers/usb/core/hcd.h2
-rw-r--r--drivers/usb/core/inode.c13
-rw-r--r--drivers/usb/input/hid-core.c4
-rw-r--r--drivers/usb/media/pwc/pwc-uncompress.c11
-rw-r--r--drivers/usb/mon/Kconfig13
-rw-r--r--drivers/usb/mon/Makefile2
51 files changed, 1326 insertions, 335 deletions
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 43722af90bd..c3fac7fd555 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -270,10 +270,9 @@ int bus_add_device(struct device * dev)
if (bus) {
pr_debug("bus %s: add device %s\n", bus->name, dev->bus_id);
- error = device_attach(dev);
+ device_attach(dev);
klist_add_tail(&bus->klist_devices, &dev->knode_bus);
- if (error >= 0)
- error = device_add_attrs(bus, dev);
+ error = device_add_attrs(bus, dev);
if (!error) {
sysfs_create_link(&bus->devices.kobj, &dev->kobj, dev->bus_id);
sysfs_create_link(&dev->kobj, &dev->bus->subsys.kset.kobj, "bus");
diff --git a/drivers/block/as-iosched.c b/drivers/block/as-iosched.c
index 638db06de2b..3410b4d294b 100644
--- a/drivers/block/as-iosched.c
+++ b/drivers/block/as-iosched.c
@@ -1871,20 +1871,22 @@ static int as_init_queue(request_queue_t *q, elevator_t *e)
if (!arq_pool)
return -ENOMEM;
- ad = kmalloc(sizeof(*ad), GFP_KERNEL);
+ ad = kmalloc_node(sizeof(*ad), GFP_KERNEL, q->node);
if (!ad)
return -ENOMEM;
memset(ad, 0, sizeof(*ad));
ad->q = q; /* Identify what queue the data belongs to */
- ad->hash = kmalloc(sizeof(struct list_head)*AS_HASH_ENTRIES,GFP_KERNEL);
+ ad->hash = kmalloc_node(sizeof(struct list_head)*AS_HASH_ENTRIES,
+ GFP_KERNEL, q->node);
if (!ad->hash) {
kfree(ad);
return -ENOMEM;
}
- ad->arq_pool = mempool_create(BLKDEV_MIN_RQ, mempool_alloc_slab, mempool_free_slab, arq_pool);
+ ad->arq_pool = mempool_create_node(BLKDEV_MIN_RQ, mempool_alloc_slab,
+ mempool_free_slab, arq_pool, q->node);
if (!ad->arq_pool) {
kfree(ad->hash);
kfree(ad);
diff --git a/drivers/block/deadline-iosched.c b/drivers/block/deadline-iosched.c
index 7f79f3dd016..4bc2fea7327 100644
--- a/drivers/block/deadline-iosched.c
+++ b/drivers/block/deadline-iosched.c
@@ -711,18 +711,20 @@ static int deadline_init_queue(request_queue_t *q, elevator_t *e)
if (!drq_pool)
return -ENOMEM;
- dd = kmalloc(sizeof(*dd), GFP_KERNEL);
+ dd = kmalloc_node(sizeof(*dd), GFP_KERNEL, q->node);
if (!dd)
return -ENOMEM;
memset(dd, 0, sizeof(*dd));
- dd->hash = kmalloc(sizeof(struct list_head)*DL_HASH_ENTRIES,GFP_KERNEL);
+ dd->hash = kmalloc_node(sizeof(struct list_head)*DL_HASH_ENTRIES,
+ GFP_KERNEL, q->node);
if (!dd->hash) {
kfree(dd);
return -ENOMEM;
}
- dd->drq_pool = mempool_create(BLKDEV_MIN_RQ, mempool_alloc_slab, mempool_free_slab, drq_pool);
+ dd->drq_pool = mempool_create_node(BLKDEV_MIN_RQ, mempool_alloc_slab,
+ mempool_free_slab, drq_pool, q->node);
if (!dd->drq_pool) {
kfree(dd->hash);
kfree(dd);
diff --git a/drivers/block/genhd.c b/drivers/block/genhd.c
index 53f7d846b74..47fd3659a06 100644
--- a/drivers/block/genhd.c
+++ b/drivers/block/genhd.c
@@ -40,7 +40,7 @@ static inline int major_to_index(int major)
#ifdef CONFIG_PROC_FS
/* get block device names in somewhat random order */
-int get_blkdev_list(char *p)
+int get_blkdev_list(char *p, int used)
{
struct blk_major_name *n;
int i, len;
@@ -49,10 +49,18 @@ int get_blkdev_list(char *p)
down(&block_subsys_sem);
for (i = 0; i < ARRAY_SIZE(major_names); i++) {
- for (n = major_names[i]; n; n = n->next)
+ for (n = major_names[i]; n; n = n->next) {
+ /*
+ * If the curent string plus the 5 extra characters
+ * in the line would run us off the page, then we're done
+ */
+ if ((len + used + strlen(n->name) + 5) >= PAGE_SIZE)
+ goto page_full;
len += sprintf(p+len, "%3d %s\n",
n->major, n->name);
+ }
}
+page_full:
up(&block_subsys_sem);
return len;
@@ -582,10 +590,16 @@ struct seq_operations diskstats_op = {
.show = diskstats_show
};
-
struct gendisk *alloc_disk(int minors)
{
- struct gendisk *disk = kmalloc(sizeof(struct gendisk), GFP_KERNEL);
+ return alloc_disk_node(minors, -1);
+}
+
+struct gendisk *alloc_disk_node(int minors, int node_id)
+{
+ struct gendisk *disk;
+
+ disk = kmalloc_node(sizeof(struct gendisk), GFP_KERNEL, node_id);
if (disk) {
memset(disk, 0, sizeof(struct gendisk));
if (!init_disk_stats(disk)) {
@@ -594,7 +608,7 @@ struct gendisk *alloc_disk(int minors)
}
if (minors > 1) {
int size = (minors - 1) * sizeof(struct hd_struct *);
- disk->part = kmalloc(size, GFP_KERNEL);
+ disk->part = kmalloc_node(size, GFP_KERNEL, node_id);
if (!disk->part) {
kfree(disk);
return NULL;
@@ -610,6 +624,7 @@ struct gendisk *alloc_disk(int minors)
}
EXPORT_SYMBOL(alloc_disk);
+EXPORT_SYMBOL(alloc_disk_node);
struct kobject *get_disk(struct gendisk *disk)
{
diff --git a/drivers/block/ioctl.c b/drivers/block/ioctl.c
index 6d7bcc9da9e..6e278474f9a 100644
--- a/drivers/block/ioctl.c
+++ b/drivers/block/ioctl.c
@@ -133,11 +133,9 @@ static int put_u64(unsigned long arg, u64 val)
return put_user(val, (u64 __user *)arg);
}
-int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
- unsigned long arg)
+static int blkdev_locked_ioctl(struct file *file, struct block_device *bdev,
+ unsigned cmd, unsigned long arg)
{
- struct block_device *bdev = inode->i_bdev;
- struct gendisk *disk = bdev->bd_disk;
struct backing_dev_info *bdi;
int ret, n;
@@ -190,36 +188,72 @@ int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
return put_ulong(arg, bdev->bd_inode->i_size >> 9);
case BLKGETSIZE64:
return put_u64(arg, bdev->bd_inode->i_size);
+ }
+ return -ENOIOCTLCMD;
+}
+
+static int blkdev_driver_ioctl(struct inode *inode, struct file *file,
+ struct gendisk *disk, unsigned cmd, unsigned long arg)
+{
+ int ret;
+ if (disk->fops->unlocked_ioctl)
+ return disk->fops->unlocked_ioctl(file, cmd, arg);
+
+ if (disk->fops->ioctl) {
+ lock_kernel();
+ ret = disk->fops->ioctl(inode, file, cmd, arg);
+ unlock_kernel();
+ return ret;
+ }
+
+ return -ENOTTY;
+}
+
+int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
+ unsigned long arg)
+{
+ struct block_device *bdev = inode->i_bdev;
+ struct gendisk *disk = bdev->bd_disk;
+ int ret, n;
+
+ switch(cmd) {
case BLKFLSBUF:
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- if (disk->fops->ioctl) {
- ret = disk->fops->ioctl(inode, file, cmd, arg);
- /* -EINVAL to handle old uncorrected drivers */
- if (ret != -EINVAL && ret != -ENOTTY)
- return ret;
- }
+
+ ret = blkdev_driver_ioctl(inode, file, disk, cmd, arg);
+ /* -EINVAL to handle old uncorrected drivers */
+ if (ret != -EINVAL && ret != -ENOTTY)
+ return ret;
+
+ lock_kernel();
fsync_bdev(bdev);
invalidate_bdev(bdev, 0);
+ unlock_kernel();
return 0;
+
case BLKROSET:
- if (disk->fops->ioctl) {
- ret = disk->fops->ioctl(inode, file, cmd, arg);
- /* -EINVAL to handle old uncorrected drivers */
- if (ret != -EINVAL && ret != -ENOTTY)
- return ret;
- }
+ ret = blkdev_driver_ioctl(inode, file, disk, cmd, arg);
+ /* -EINVAL to handle old uncorrected drivers */
+ if (ret != -EINVAL && ret != -ENOTTY)
+ return ret;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
if (get_user(n, (int __user *)(arg)))
return -EFAULT;
+ lock_kernel();
set_device_ro(bdev, n);
+ unlock_kernel();
return 0;
- default:
- if (disk->fops->ioctl)
- return disk->fops->ioctl(inode, file, cmd, arg);
}
- return -ENOTTY;
+
+ lock_kernel();
+ ret = blkdev_locked_ioctl(file, bdev, cmd, arg);
+ unlock_kernel();
+ if (ret != -ENOIOCTLCMD)
+ return ret;
+
+ return blkdev_driver_ioctl(inode, file, disk, cmd, arg);
}
/* Most of the generic ioctls are handled in the normal fallback path.
diff --git a/drivers/block/ll_rw_blk.c b/drivers/block/ll_rw_blk.c
index 81fe3a0c1fe..fd94ea27d59 100644
--- a/drivers/block/ll_rw_blk.c
+++ b/drivers/block/ll_rw_blk.c
@@ -28,6 +28,7 @@
#include <linux/slab.h>
#include <linux/swap.h>
#include <linux/writeback.h>
+#include <linux/blkdev.h>
/*
* for max sense size
@@ -716,7 +717,7 @@ struct request *blk_queue_find_tag(request_queue_t *q, int tag)
{
struct blk_queue_tag *bqt = q->queue_tags;
- if (unlikely(bqt == NULL || tag >= bqt->real_max_depth))
+ if (unlikely(bqt == NULL || tag >= bqt->max_depth))
return NULL;
return bqt->tag_index[tag];
@@ -774,9 +775,9 @@ EXPORT_SYMBOL(blk_queue_free_tags);
static int
init_tag_map(request_queue_t *q, struct blk_queue_tag *tags, int depth)
{
- int bits, i;
struct request **tag_index;
unsigned long *tag_map;
+ int nr_ulongs;
if (depth > q->nr_requests * 2) {
depth = q->nr_requests * 2;
@@ -788,24 +789,17 @@ init_tag_map(request_queue_t *q, struct blk_queue_tag *tags, int depth)
if (!tag_index)
goto fail;
- bits = (depth / BLK_TAGS_PER_LONG) + 1;
- tag_map = kmalloc(bits * sizeof(unsigned long), GFP_ATOMIC);
+ nr_ulongs = ALIGN(depth, BITS_PER_LONG) / BITS_PER_LONG;
+ tag_map = kmalloc(nr_ulongs * sizeof(unsigned long), GFP_ATOMIC);
if (!tag_map)
goto fail;
memset(tag_index, 0, depth * sizeof(struct request *));
- memset(tag_map, 0, bits * sizeof(unsigned long));
+ memset(tag_map, 0, nr_ulongs * sizeof(unsigned long));
tags->max_depth = depth;
- tags->real_max_depth = bits * BITS_PER_LONG;
tags->tag_index = tag_index;
tags->tag_map = tag_map;
- /*
- * set the upper bits if the depth isn't a multiple of the word size
- */
- for (i = depth; i < bits * BLK_TAGS_PER_LONG; i++)
- __set_bit(i, tag_map);
-
return 0;
fail:
kfree(tag_index);
@@ -870,32 +864,24 @@ int blk_queue_resize_tags(request_queue_t *q, int new_depth)
struct blk_queue_tag *bqt = q->queue_tags;
struct request **tag_index;
unsigned long *tag_map;
- int bits, max_depth;
+ int max_depth, nr_ulongs;
if (!bqt)
return -ENXIO;
/*
- * don't bother sizing down
- */
- if (new_depth <= bqt->real_max_depth) {
- bqt->max_depth = new_depth;
- return 0;
- }
-
- /*
* save the old state info, so we can copy it back
*/
tag_index = bqt->tag_index;
tag_map = bqt->tag_map;
- max_depth = bqt->real_max_depth;
+ max_depth = bqt->max_depth;
if (init_tag_map(q, bqt, new_depth))
return -ENOMEM;
memcpy(bqt->tag_index, tag_index, max_depth * sizeof(struct request *));
- bits = max_depth / BLK_TAGS_PER_LONG;
- memcpy(bqt->tag_map, tag_map, bits * sizeof(unsigned long));
+ nr_ulongs = ALIGN(max_depth, BITS_PER_LONG) / BITS_PER_LONG;
+ memcpy(bqt->tag_map, tag_map, nr_ulongs * sizeof(unsigned long));
kfree(tag_index);
kfree(tag_map);
@@ -925,11 +911,16 @@ void blk_queue_end_tag(request_queue_t *q, struct request *rq)
BUG_ON(tag == -1);
- if (unlikely(tag >= bqt->real_max_depth))
+ if (unlikely(tag >= bqt->max_depth))
+ /*
+ * This can happen after tag depth has been reduced.
+ * FIXME: how about a warning or info message here?
+ */
return;
if (unlikely(!__test_and_clear_bit(tag, bqt->tag_map))) {
- printk("attempt to clear non-busy tag (%d)\n", tag);
+ printk(KERN_ERR "%s: attempt to clear non-busy tag (%d)\n",
+ __FUNCTION__, tag);
return;
}
@@ -938,7 +929,8 @@ void blk_queue_end_tag(request_queue_t *q, struct request *rq)
rq->tag = -1;
if (unlikely(bqt->tag_index[tag] == NULL))
- printk("tag %d is missing\n", tag);
+ printk(KERN_ERR "%s: tag %d is missing\n",
+ __FUNCTION__, tag);
bqt->tag_index[tag] = NULL;
bqt->busy--;
@@ -967,24 +959,20 @@ EXPORT_SYMBOL(blk_queue_end_tag);
int blk_queue_start_tag(request_queue_t *q, struct request *rq)
{
struct blk_queue_tag *bqt = q->queue_tags;
- unsigned long *map = bqt->tag_map;
- int tag = 0;
+ int tag;
if (unlikely((rq->flags & REQ_QUEUED))) {
printk(KERN_ERR
- "request %p for device [%s] already tagged %d",
- rq, rq->rq_disk ? rq->rq_disk->disk_name : "?", rq->tag);
+ "%s: request %p for device [%s] already tagged %d",
+ __FUNCTION__, rq,
+ rq->rq_disk ? rq->rq_disk->disk_name : "?", rq->tag);
BUG();
}
- for (map = bqt->tag_map; *map == -1UL; map++) {
- tag += BLK_TAGS_PER_LONG;
-
- if (tag >= bqt->max_depth)
- return 1;
- }
+ tag = find_first_zero_bit(bqt->tag_map, bqt->max_depth);
+ if (tag >= bqt->max_depth)
+ return 1;
- tag += ffz(*map);
__set_bit(tag, bqt->tag_map);
rq->flags |= REQ_QUEUED;
@@ -1020,7 +1008,8 @@ void blk_queue_invalidate_tags(request_queue_t *q)
rq = list_entry_rq(tmp);
if (rq->tag == -1) {
- printk("bad tag found on list\n");
+ printk(KERN_ERR
+ "%s: bad tag found on list\n", __FUNCTION__);
list_del_init(&rq->queuelist);
rq->flags &= ~REQ_QUEUED;
} else
@@ -1450,7 +1439,7 @@ EXPORT_SYMBOL(blk_remove_plug);
*/
void __generic_unplug_device(request_queue_t *q)
{
- if (test_bit(QUEUE_FLAG_STOPPED, &q->queue_flags))
+ if (unlikely(test_bit(QUEUE_FLAG_STOPPED, &q->queue_flags)))
return;
if (!blk_remove_plug(q))
@@ -1645,7 +1634,8 @@ static int blk_init_free_list(request_queue_t *q)
init_waitqueue_head(&rl->wait[WRITE]);
init_waitqueue_head(&rl->drain);
- rl->rq_pool = mempool_create(BLKDEV_MIN_RQ, mempool_alloc_slab, mempool_free_slab, request_cachep);
+ rl->rq_pool = mempool_create_node(BLKDEV_MIN_RQ, mempool_alloc_slab,
+ mempool_free_slab, request_cachep, q->node);
if (!rl->rq_pool)
return -ENOMEM;
@@ -1657,8 +1647,15 @@ static int __make_request(request_queue_t *, struct bio *);
request_queue_t *blk_alloc_queue(int gfp_mask)
{
- request_queue_t *q = kmem_cache_alloc(requestq_cachep, gfp_mask);
+ return blk_alloc_queue_node(gfp_mask, -1);
+}
+EXPORT_SYMBOL(blk_alloc_queue);
+
+request_queue_t *blk_alloc_queue_node(int gfp_mask, int node_id)
+{
+ request_queue_t *q;
+ q = kmem_cache_alloc_node(requestq_cachep, gfp_mask, node_id);
if (!q)
return NULL;
@@ -1671,8 +1668,7 @@ request_queue_t *blk_alloc_queue(int gfp_mask)
return q;
}
-
-EXPORT_SYMBOL(blk_alloc_queue);
+EXPORT_SYMBOL(blk_alloc_queue_node);
/**
* blk_init_queue - prepare a request queue for use with a block device
@@ -1705,13 +1701,22 @@ EXPORT_SYMBOL(blk_alloc_queue);
* blk_init_queue() must be paired with a blk_cleanup_queue() call
* when the block device is deactivated (such as at module unload).
**/
+
request_queue_t *blk_init_queue(request_fn_proc *rfn, spinlock_t *lock)
{
- request_queue_t *q = blk_alloc_queue(GFP_KERNEL);
+ return blk_init_queue_node(rfn, lock, -1);
+}
+EXPORT_SYMBOL(blk_init_queue);
+
+request_queue_t *
+blk_init_queue_node(request_fn_proc *rfn, spinlock_t *lock, int node_id)
+{
+ request_queue_t *q = blk_alloc_queue_node(GFP_KERNEL, node_id);
if (!q)
return NULL;
+ q->node = node_id;
if (blk_init_free_list(q))
goto out_init;
@@ -1754,12 +1759,11 @@ out_init:
kmem_cache_free(requestq_cachep, q);
return NULL;
}
-
-EXPORT_SYMBOL(blk_init_queue);
+EXPORT_SYMBOL(blk_init_queue_node);
int blk_get_queue(request_queue_t *q)
{
- if (!test_bit(QUEUE_FLAG_DEAD, &q->queue_flags)) {
+ if (likely(!test_bit(QUEUE_FLAG_DEAD, &q->queue_flags))) {
atomic_inc(&q->refcnt);
return 0;
}
@@ -1838,7 +1842,6 @@ static void __freed_request(request_queue_t *q, int rw)
clear_queue_congested(q, rw);
if (rl->count[rw] + 1 <= q->nr_requests) {
- smp_mb();
if (waitqueue_active(&rl->wait[rw]))
wake_up(&rl->wait[rw]);
@@ -1966,7 +1969,6 @@ static struct request *get_request_wait(request_queue_t *q, int rw)
DEFINE_WAIT(wait);
struct request *rq;
- generic_unplug_device(q);
do {
struct request_list *rl = &q->rq;
@@ -1978,6 +1980,7 @@ static struct request *get_request_wait(request_queue_t *q, int rw)
if (!rq) {
struct io_context *ioc;
+ generic_unplug_device(q);
io_schedule();
/*
@@ -2581,7 +2584,7 @@ static int __make_request(request_queue_t *q, struct bio *bio)
spin_lock_prefetch(q->queue_lock);
barrier = bio_barrier(bio);
- if (barrier && (q->ordered == QUEUE_ORDERED_NONE)) {
+ if (unlikely(barrier) && (q->ordered == QUEUE_ORDERED_NONE)) {
err = -EOPNOTSUPP;
goto end_io;
}
@@ -2682,7 +2685,7 @@ get_rq:
/*
* REQ_BARRIER implies no merging, but lets make it explicit
*/
- if (barrier)
+ if (unlikely(barrier))
req->flags |= (REQ_HARDBARRIER | REQ_NOMERGE);
req->errors = 0;
@@ -2806,7 +2809,7 @@ static inline void block_wait_queue_running(request_queue_t *q)
{
DEFINE_WAIT(wait);
- while (test_bit(QUEUE_FLAG_DRAIN, &q->queue_flags)) {
+ while (unlikely(test_bit(QUEUE_FLAG_DRAIN, &q->queue_flags))) {
struct request_list *rl = &q->rq;
prepare_to_wait_exclusive(&rl->drain, &wait,
@@ -2915,7 +2918,7 @@ end_io:
goto end_io;
}
- if (test_bit(QUEUE_FLAG_DEAD, &q->queue_flags))
+ if (unlikely(test_bit(QUEUE_FLAG_DEAD, &q->queue_flags)))
goto end_io;
block_wait_queue_running(q);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 6f011d0d8e9..b35e08876dd 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -472,17 +472,11 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio)
*/
static void loop_add_bio(struct loop_device *lo, struct bio *bio)
{
- unsigned long flags;
-
- spin_lock_irqsave(&lo->lo_lock, flags);
if (lo->lo_biotail) {
lo->lo_biotail->bi_next = bio;
lo->lo_biotail = bio;
} else
lo->lo_bio = lo->lo_biotail = bio;
- spin_unlock_irqrestore(&lo->lo_lock, flags);
-
- up(&lo->lo_bh_mutex);
}
/*
@@ -492,14 +486,12 @@ static struct bio *loop_get_bio(struct loop_device *lo)
{
struct bio *bio;
- spin_lock_irq(&lo->lo_lock);
if ((bio = lo->lo_bio)) {
if (bio == lo->lo_biotail)
lo->lo_biotail = NULL;
lo->lo_bio = bio->bi_next;
bio->bi_next = NULL;
}
- spin_unlock_irq(&lo->lo_lock);
return bio;
}
@@ -509,35 +501,28 @@ static int loop_make_request(request_queue_t *q, struct bio *old_bio)
struct loop_device *lo = q->queuedata;
int rw = bio_rw(old_bio);
- if (!lo)
- goto out;
+ if (rw == READA)
+ rw = READ;
+
+ BUG_ON(!lo || (rw != READ && rw != WRITE));
spin_lock_irq(&lo->lo_lock);
if (lo->lo_state != Lo_bound)
- goto inactive;
- atomic_inc(&lo->lo_pending);
- spin_unlock_irq(&lo->lo_lock);
-
- if (rw == WRITE) {
- if (lo->lo_flags & LO_FLAGS_READ_ONLY)
- goto err;
- } else if (rw == READA) {
- rw = READ;
- } else if (rw != READ) {
- printk(KERN_ERR "loop: unknown command (%x)\n", rw);
- goto err;
- }
+ goto out;
+ if (unlikely(rw == WRITE && (lo->lo_flags & LO_FLAGS_READ_ONLY)))
+ goto out;
+ lo->lo_pending++;
loop_add_bio(lo, old_bio);
+ spin_unlock_irq(&lo->lo_lock);
+ up(&lo->lo_bh_mutex);
return 0;
-err:
- if (atomic_dec_and_test(&lo->lo_pending))
- up(&lo->lo_bh_mutex);
+
out:
+ if (lo->lo_pending == 0)
+ up(&lo->lo_bh_mutex);
+ spin_unlock_irq(&lo->lo_lock);
bio_io_error(old_bio, old_bio->bi_size);
return 0;
-inactive:
- spin_unlock_irq(&lo->lo_lock);
- goto out;
}
/*
@@ -560,13 +545,11 @@ static void do_loop_switch(struct loop_device *, struct switch_request *);
static inline void loop_handle_bio(struct loop_device *lo, struct bio *bio)
{
- int ret;
-
if (unlikely(!bio->bi_bdev)) {
do_loop_switch(lo, bio->bi_private);
bio_put(bio);
} else {
- ret = do_bio_filebacked(lo, bio);
+ int ret = do_bio_filebacked(lo, bio);
bio_endio(bio, bio->bi_size, ret);
}
}
@@ -594,7 +577,7 @@ static int loop_thread(void *data)
set_user_nice(current, -20);
lo->lo_state = Lo_bound;
- atomic_inc(&lo->lo_pending);
+ lo->lo_pending = 1;
/*
* up sem, we are running
@@ -602,26 +585,37 @@ static int loop_thread(void *data)
up(&lo->lo_sem);
for (;;) {
- down_interruptible(&lo->lo_bh_mutex);
+ int pending;
+
/*
- * could be upped because of tear-down, not because of
- * pending work
+ * interruptible just to not contribute to load avg
*/
- if (!atomic_read(&lo->lo_pending))
+ if (down_interruptible(&lo->lo_bh_mutex))
+ continue;
+
+ spin_lock_irq(&lo->lo_lock);
+
+ /*
+ * could be upped because of tear-down, not pending work
+ */
+ if (unlikely(!lo->lo_pending)) {
+ spin_unlock_irq(&lo->lo_lock);
break;
+ }
bio = loop_get_bio(lo);
- if (!bio) {
- printk("loop: missing bio\n");
- continue;
- }
+ lo->lo_pending--;
+ pending = lo->lo_pending;
+ spin_unlock_irq(&lo->lo_lock);
+
+ BUG_ON(!bio);
loop_handle_bio(lo, bio);
/*
* upped both for pending work and tear-down, lo_pending
* will hit zero then
*/
- if (atomic_dec_and_test(&lo->lo_pending))
+ if (unlikely(!pending))
break;
}
@@ -900,7 +894,8 @@ static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev)
spin_lock_irq(&lo->lo_lock);
lo->lo_state = Lo_rundown;
- if (atomic_dec_and_test(&lo->lo_pending))
+ lo->lo_pending--;
+ if (!lo->lo_pending)
up(&lo->lo_bh_mutex);
spin_unlock_irq(&lo->lo_lock);
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index bc56770bcc9..7f3d78de265 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -467,14 +467,12 @@ static int pkt_set_speed(struct pktcdvd_device *pd, unsigned write_speed, unsign
* Queue a bio for processing by the low-level CD device. Must be called
* from process context.
*/
-static void pkt_queue_bio(struct pktcdvd_device *pd, struct bio *bio, int high_prio_read)
+static void pkt_queue_bio(struct pktcdvd_device *pd, struct bio *bio)
{
spin_lock(&pd->iosched.lock);
if (bio_data_dir(bio) == READ) {
pkt_add_list_last(bio, &pd->iosched.read_queue,
&pd->iosched.read_queue_tail);
- if (high_prio_read)
- pd->iosched.high_prio_read = 1;
} else {
pkt_add_list_last(bio, &pd->iosched.write_queue,
&pd->iosched.write_queue_tail);
@@ -490,15 +488,16 @@ static void pkt_queue_bio(struct pktcdvd_device *pd, struct bio *bio, int high_p
* requirements for CDRW drives:
* - A cache flush command must be inserted before a read request if the
* previous request was a write.
- * - Switching between reading and writing is slow, so don't it more often
+ * - Switching between reading and writing is slow, so don't do it more often
* than necessary.
+ * - Optimize for throughput at the expense of latency. This means that streaming
+ * writes will never be interrupted by a read, but if the drive has to seek
+ * before the next write, switch to reading instead if there are any pending
+ * read requests.
* - Set the read speed according to current usage pattern. When only reading
* from the device, it's best to use the highest possible read speed, but
* when switching often between reading and writing, it's better to have the
* same read and write speeds.
- * - Reads originating from user space should have higher priority than reads
- * originating from pkt_gather_data, because some process is usually waiting
- * on reads of the first kind.
*/
static void pkt_iosched_process_queue(struct pktcdvd_device *pd)
{
@@ -512,21 +511,24 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd)
for (;;) {
struct bio *bio;
- int reads_queued, writes_queued, high_prio_read;
+ int reads_queued, writes_queued;
spin_lock(&pd->iosched.lock);
reads_queued = (pd->iosched.read_queue != NULL);
writes_queued = (pd->iosched.write_queue != NULL);
- if (!reads_queued)
- pd->iosched.high_prio_read = 0;
- high_prio_read = pd->iosched.high_prio_read;
spin_unlock(&pd->iosched.lock);
if (!reads_queued && !writes_queued)
break;
if (pd->iosched.writing) {
- if (high_prio_read || (!writes_queued && reads_queued)) {
+ int need_write_seek = 1;
+ spin_lock(&pd->iosched.lock);
+ bio = pd->iosched.write_queue;
+ spin_unlock(&pd->iosched.lock);
+ if (bio && (bio->bi_sector == pd->iosched.last_write))
+ need_write_seek = 0;
+ if (need_write_seek && reads_queued) {
if (atomic_read(&pd->cdrw.pending_bios) > 0) {
VPRINTK("pktcdvd: write, waiting\n");
break;
@@ -559,8 +561,10 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd)
if (bio_data_dir(bio) == READ)
pd->iosched.successive_reads += bio->bi_size >> 10;
- else
+ else {
pd->iosched.successive_reads = 0;
+ pd->iosched.last_write = bio->bi_sector + bio_sectors(bio);
+ }
if (pd->iosched.successive_reads >= HI_SPEED_SWITCH) {
if (pd->read_speed == pd->write_speed) {
pd->read_speed = MAX_SPEED;
@@ -765,7 +769,7 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
atomic_inc(&pkt->io_wait);
bio->bi_rw = READ;
- pkt_queue_bio(pd, bio, 0);
+ pkt_queue_bio(pd, bio);
frames_read++;
}
@@ -1062,7 +1066,7 @@ static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt)
atomic_set(&pkt->io_wait, 1);
pkt->w_bio->bi_rw = WRITE;
- pkt_queue_bio(pd, pkt->w_bio, 0);
+ pkt_queue_bio(pd, pkt->w_bio);
}
static void pkt_finish_packet(struct packet_data *pkt, int uptodate)
@@ -2120,7 +2124,7 @@ static int pkt_make_request(request_queue_t *q, struct bio *bio)
cloned_bio->bi_private = psd;
cloned_bio->bi_end_io = pkt_end_io_read_cloned;
pd->stats.secs_r += bio->bi_size >> 9;
- pkt_queue_bio(pd, cloned_bio, 1);
+ pkt_queue_bio(pd, cloned_bio);
return 0;
}
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 9075bbb56ad..f766bc22c6b 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -576,7 +576,7 @@ static void __exit hci_uart_exit(void)
#endif
/* Release tty registration of line discipline */
- if ((err = tty_register_ldisc(N_HCI, NULL)))
+ if ((err = tty_unregister_ldisc(N_HCI)))
BT_ERR("Can't unregister HCI line discipline (%d)", err);
}
diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c
index 1dc4259213a..777bc499bbb 100644
--- a/drivers/char/amiserial.c
+++ b/drivers/char/amiserial.c
@@ -861,13 +861,18 @@ static void change_speed(struct async_struct *info,
static void rs_put_char(struct tty_struct *tty, unsigned char ch)
{
- struct async_struct *info = (struct async_struct *)tty->driver_data;
+ struct async_struct *info;
unsigned long flags;
+ if (!tty)
+ return;
+
+ info = tty->driver_data;
+
if (serial_paranoia_check(info, tty->name, "rs_put_char"))
return;
- if (!tty || !info->xmit.buf)
+ if (!info->xmit.buf)
return;
local_irq_save(flags);
@@ -910,13 +915,18 @@ static void rs_flush_chars(struct tty_struct *tty)
static int rs_write(struct tty_struct * tty, const unsigned char *buf, int count)
{
int c, ret = 0;
- struct async_struct *info = (struct async_struct *)tty->driver_data;
+ struct async_struct *info;
unsigned long flags;
+ if (!tty)
+ return 0;
+
+ info = tty->driver_data;
+
if (serial_paranoia_check(info, tty->name, "rs_write"))
return 0;
- if (!tty || !info->xmit.buf || !tmp_buf)
+ if (!info->xmit.buf || !tmp_buf)
return 0;
local_save_flags(flags);
diff --git a/drivers/char/n_hdlc.c b/drivers/char/n_hdlc.c
index b3dbff1cf96..5079beda69b 100644
--- a/drivers/char/n_hdlc.c
+++ b/drivers/char/n_hdlc.c
@@ -960,7 +960,7 @@ static char hdlc_unregister_fail[] __exitdata =
static void __exit n_hdlc_exit(void)
{
/* Release tty registration of line discipline */
- int status = tty_register_ldisc(N_HDLC, NULL);
+ int status = tty_unregister_ldisc(N_HDLC);
if (status)
printk(hdlc_unregister_fail, status);
diff --git a/drivers/char/n_r3964.c b/drivers/char/n_r3964.c
index 3883073ab48..2291a87e8ad 100644
--- a/drivers/char/n_r3964.c
+++ b/drivers/char/n_r3964.c
@@ -200,7 +200,7 @@ static void __exit r3964_exit(void)
TRACE_M ("cleanup_module()");
- status=tty_register_ldisc(N_R3964, NULL);
+ status=tty_unregister_ldisc(N_R3964);
if(status!=0)
{
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 31831030f73..cc4b43bad70 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -251,7 +251,7 @@ static void tty_set_termios_ldisc(struct tty_struct *tty, int num)
static DEFINE_SPINLOCK(tty_ldisc_lock);
static DECLARE_WAIT_QUEUE_HEAD(tty_ldisc_wait);
-static struct tty_ldisc tty_ldiscs[NR_LDISCS]; /* line disc dispatch table */
+static struct tty_ldisc tty_ldiscs[NR_LDISCS]; /* line disc dispatch table */
int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc)
{
@@ -262,24 +262,35 @@ int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc)
return -EINVAL;
spin_lock_irqsave(&tty_ldisc_lock, flags);
- if (new_ldisc) {
- tty_ldiscs[disc] = *new_ldisc;
- tty_ldiscs[disc].num = disc;
- tty_ldiscs[disc].flags |= LDISC_FLAG_DEFINED;
- tty_ldiscs[disc].refcount = 0;
- } else {
- if(tty_ldiscs[disc].refcount)
- ret = -EBUSY;
- else
- tty_ldiscs[disc].flags &= ~LDISC_FLAG_DEFINED;
- }
+ tty_ldiscs[disc] = *new_ldisc;
+ tty_ldiscs[disc].num = disc;
+ tty_ldiscs[disc].flags |= LDISC_FLAG_DEFINED;
+ tty_ldiscs[disc].refcount = 0;
spin_unlock_irqrestore(&tty_ldisc_lock, flags);
return ret;
}
-
EXPORT_SYMBOL(tty_register_ldisc);
+int tty_unregister_ldisc(int disc)
+{
+ unsigned long flags;
+ int ret = 0;
+
+ if (disc < N_TTY || disc >= NR_LDISCS)
+ return -EINVAL;
+
+ spin_lock_irqsave(&tty_ldisc_lock, flags);
+ if (tty_ldiscs[disc].refcount)
+ ret = -EBUSY;
+ else
+ tty_ldiscs[disc].flags &= ~LDISC_FLAG_DEFINED;
+ spin_unlock_irqrestore(&tty_ldisc_lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL(tty_unregister_ldisc);
+
struct tty_ldisc *tty_ldisc_get(int disc)
{
unsigned long flags;
diff --git a/drivers/char/watchdog/Kconfig b/drivers/char/watchdog/Kconfig
index 06a31da2381..b53e2e2b5ae 100644
--- a/drivers/char/watchdog/Kconfig
+++ b/drivers/char/watchdog/Kconfig
@@ -414,6 +414,16 @@ config WATCHDOG_RIO
machines. The watchdog timeout period is normally one minute but
can be changed with a boot-time parameter.
+# ppc64 RTAS watchdog
+config WATCHDOG_RTAS
+ tristate "RTAS watchdog"
+ depends on WATCHDOG && PPC_RTAS
+ help
+ This driver adds watchdog support for the RTAS watchdog.
+
+ To compile this driver as a module, choose M here. The module
+ will be called wdrtas.
+
#
# ISA-based Watchdog Cards
#
diff --git a/drivers/char/watchdog/Makefile b/drivers/char/watchdog/Makefile
index 1cd27efa35c..c1838834ea7 100644
--- a/drivers/char/watchdog/Makefile
+++ b/drivers/char/watchdog/Makefile
@@ -33,6 +33,7 @@ obj-$(CONFIG_USBPCWATCHDOG) += pcwd_usb.o
obj-$(CONFIG_IXP4XX_WATCHDOG) += ixp4xx_wdt.o
obj-$(CONFIG_IXP2000_WATCHDOG) += ixp2000_wdt.o
obj-$(CONFIG_8xx_WDT) += mpc8xx_wdt.o
+obj-$(CONFIG_WATCHDOG_RTAS) += wdrtas.o
# Only one watchdog can succeed. We probe the hardware watchdog
# drivers first, then the softdog driver. This means if your hardware
diff --git a/drivers/char/watchdog/wdrtas.c b/drivers/char/watchdog/wdrtas.c
new file mode 100644
index 00000000000..619e2ffca33
--- /dev/null
+++ b/drivers/char/watchdog/wdrtas.c
@@ -0,0 +1,696 @@
+/*
+ * FIXME: add wdrtas_get_status and wdrtas_get_boot_status as soon as
+ * RTAS calls are available
+ */
+
+/*
+ * RTAS watchdog driver
+ *
+ * (C) Copyright IBM Corp. 2005
+ * device driver to exploit watchdog RTAS functions
+ *
+ * Authors : Utz Bacher <utz.bacher@de.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/types.h>
+#include <linux/watchdog.h>
+
+#include <asm/rtas.h>
+#include <asm/uaccess.h>
+
+#define WDRTAS_MAGIC_CHAR 42
+#define WDRTAS_SUPPORTED_MASK (WDIOF_SETTIMEOUT | \
+ WDIOF_MAGICCLOSE)
+
+MODULE_AUTHOR("Utz Bacher <utz.bacher@de.ibm.com>");
+MODULE_DESCRIPTION("RTAS watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS_MISCDEV(TEMP_MINOR);
+
+#ifdef CONFIG_WATCHDOG_NOWAYOUT
+static int wdrtas_nowayout = 1;
+#else
+static int wdrtas_nowayout = 0;
+#endif
+
+static atomic_t wdrtas_miscdev_open = ATOMIC_INIT(0);
+static char wdrtas_expect_close = 0;
+
+static int wdrtas_interval;
+
+#define WDRTAS_THERMAL_SENSOR 3
+static int wdrtas_token_get_sensor_state;
+#define WDRTAS_SURVEILLANCE_IND 9000
+static int wdrtas_token_set_indicator;
+#define WDRTAS_SP_SPI 28
+static int wdrtas_token_get_sp;
+static int wdrtas_token_event_scan;
+
+#define WDRTAS_DEFAULT_INTERVAL 300
+
+#define WDRTAS_LOGBUFFER_LEN 128
+static char wdrtas_logbuffer[WDRTAS_LOGBUFFER_LEN];
+
+
+/*** watchdog access functions */
+
+/**
+ * wdrtas_set_interval - sets the watchdog interval
+ * @interval: new interval
+ *
+ * returns 0 on success, <0 on failures
+ *
+ * wdrtas_set_interval sets the watchdog keepalive interval by calling the
+ * RTAS function set-indicator (surveillance). The unit of interval is
+ * seconds.
+ */
+static int
+wdrtas_set_interval(int interval)
+{
+ long result;
+ static int print_msg = 10;
+
+ /* rtas uses minutes */
+ interval = (interval + 59) / 60;
+
+ result = rtas_call(wdrtas_token_set_indicator, 3, 1, NULL,
+ WDRTAS_SURVEILLANCE_IND, 0, interval);
+ if ( (result < 0) && (print_msg) ) {
+ printk(KERN_ERR "wdrtas: setting the watchdog to %i "
+ "timeout failed: %li\n", interval, result);
+ print_msg--;
+ }
+
+ return result;
+}
+
+/**
+ * wdrtas_get_interval - returns the current watchdog interval
+ * @fallback_value: value (in seconds) to use, if the RTAS call fails
+ *
+ * returns the interval
+ *
+ * wdrtas_get_interval returns the current watchdog keepalive interval
+ * as reported by the RTAS function ibm,get-system-parameter. The unit
+ * of the return value is seconds.
+ */
+static int
+wdrtas_get_interval(int fallback_value)
+{
+ long result;
+ char value[4];
+
+ result = rtas_call(wdrtas_token_get_sp, 3, 1, NULL,
+ WDRTAS_SP_SPI, (void *)__pa(&value), 4);
+ if ( (value[0] != 0) || (value[1] != 2) || (value[3] != 0) ||
+ (result < 0) ) {
+ printk(KERN_WARNING "wdrtas: could not get sp_spi watchdog "
+ "timeout (%li). Continuing\n", result);
+ return fallback_value;
+ }
+
+ /* rtas uses minutes */
+ return ((int)value[2]) * 60;
+}
+
+/**
+ * wdrtas_timer_start - starts watchdog
+ *
+ * wdrtas_timer_start starts the watchdog by calling the RTAS function
+ * set-interval (surveillance)
+ */
+static void
+wdrtas_timer_start(void)
+{
+ wdrtas_set_interval(wdrtas_interval);
+}
+
+/**
+ * wdrtas_timer_stop - stops watchdog
+ *
+ * wdrtas_timer_stop stops the watchdog timer by calling the RTAS function
+ * set-interval (surveillance)
+ */
+static void
+wdrtas_timer_stop(void)
+{
+ wdrtas_set_interval(0);
+}
+
+/**
+ * wdrtas_log_scanned_event - logs an event we received during keepalive
+ *
+ * wdrtas_log_scanned_event prints a message to the log buffer dumping
+ * the results of the last event-scan call
+ */
+static void
+wdrtas_log_scanned_event(void)
+{
+ int i;
+
+ for (i = 0; i < WDRTAS_LOGBUFFER_LEN; i += 16)
+ printk(KERN_INFO "wdrtas: dumping event (line %i/%i), data = "
+ "%02x %02x %02x %02x %02x %02x %02x %02x "
+ "%02x %02x %02x %02x %02x %02x %02x %02x\n",
+ (i / 16) + 1, (WDRTAS_LOGBUFFER_LEN / 16),
+ wdrtas_logbuffer[i + 0], wdrtas_logbuffer[i + 1],
+ wdrtas_logbuffer[i + 2], wdrtas_logbuffer[i + 3],
+ wdrtas_logbuffer[i + 4], wdrtas_logbuffer[i + 5],
+ wdrtas_logbuffer[i + 6], wdrtas_logbuffer[i + 7],
+ wdrtas_logbuffer[i + 8], wdrtas_logbuffer[i + 9],
+ wdrtas_logbuffer[i + 10], wdrtas_logbuffer[i + 11],
+ wdrtas_logbuffer[i + 12], wdrtas_logbuffer[i + 13],
+ wdrtas_logbuffer[i + 14], wdrtas_logbuffer[i + 15]);
+}
+
+/**
+ * wdrtas_timer_keepalive - resets watchdog timer to keep system alive
+ *
+ * wdrtas_timer_keepalive restarts the watchdog timer by calling the
+ * RTAS function event-scan and repeats these calls as long as there are
+ * events available. All events will be dumped.
+ */
+static void
+wdrtas_timer_keepalive(void)
+{
+ long result;
+
+ do {
+ result = rtas_call(wdrtas_token_event_scan, 4, 1, NULL,
+ RTAS_EVENT_SCAN_ALL_EVENTS, 0,
+ (void *)__pa(wdrtas_logbuffer),
+ WDRTAS_LOGBUFFER_LEN);
+ if (result < 0)
+ printk(KERN_ERR "wdrtas: event-scan failed: %li\n",
+ result);
+ if (result == 0)
+ wdrtas_log_scanned_event();
+ } while (result == 0);
+}
+
+/**
+ * wdrtas_get_temperature - returns current temperature
+ *
+ * returns temperature or <0 on failures
+ *
+ * wdrtas_get_temperature returns the current temperature in Fahrenheit. It
+ * uses the RTAS call get-sensor-state, token 3 to do so
+ */
+static int
+wdrtas_get_temperature(void)
+{
+ long result;
+ int temperature = 0;
+
+ result = rtas_call(wdrtas_token_get_sensor_state, 2, 2,
+ (void *)__pa(&temperature),
+ WDRTAS_THERMAL_SENSOR, 0);
+
+ if (result < 0)
+ printk(KERN_WARNING "wdrtas: reading the thermal sensor "
+ "faild: %li\n", result);
+ else
+ temperature = ((temperature * 9) / 5) + 32; /* fahrenheit */
+
+ return temperature;
+}
+
+/**
+ * wdrtas_get_status - returns the status of the watchdog
+ *
+ * returns a bitmask of defines WDIOF_... as defined in
+ * include/linux/watchdog.h
+ */
+static int
+wdrtas_get_status(void)
+{
+ return 0; /* TODO */
+}
+
+/**
+ * wdrtas_get_boot_status - returns the reason for the last boot
+ *
+ * returns a bitmask of defines WDIOF_... as defined in
+ * include/linux/watchdog.h, indicating why the watchdog rebooted the system
+ */
+static int
+wdrtas_get_boot_status(void)
+{
+ return 0; /* TODO */
+}
+
+/*** watchdog API and operations stuff */
+
+/* wdrtas_write - called when watchdog device is written to
+ * @file: file structure
+ * @buf: user buffer with data
+ * @len: amount to data written
+ * @ppos: position in file
+ *
+ * returns the number of successfully processed characters, which is always
+ * the number of bytes passed to this function
+ *
+ * wdrtas_write processes all the data given to it and looks for the magic
+ * character 'V'. This character allows the watchdog device to be closed
+ * properly.
+ */
+static ssize_t
+wdrtas_write(struct file *file, const char __user *buf,
+ size_t len, loff_t *ppos)
+{
+ int i;
+ char c;
+
+ if (!len)
+ goto out;
+
+ if (!wdrtas_nowayout) {
+ wdrtas_expect_close = 0;
+ /* look for 'V' */
+ for (i = 0; i < len; i++) {
+ if (get_user(c, buf + i))
+ return -EFAULT;
+ /* allow to close device */
+ if (c == 'V')
+ wdrtas_expect_close = WDRTAS_MAGIC_CHAR;
+ }
+ }
+
+ wdrtas_timer_keepalive();
+
+out:
+ return len;
+}
+
+/**
+ * wdrtas_ioctl - ioctl function for the watchdog device
+ * @inode: inode structure
+ * @file: file structure
+ * @cmd: command for ioctl
+ * @arg: argument pointer
+ *
+ * returns 0 on success, <0 on failure
+ *
+ * wdrtas_ioctl implements the watchdog API ioctls
+ */
+static int
+wdrtas_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ int __user *argp = (void *)arg;
+ int i;
+ static struct watchdog_info wdinfo = {
+ .options = WDRTAS_SUPPORTED_MASK,
+ .firmware_version = 0,
+ .identity = "wdrtas"
+ };
+
+ switch (cmd) {
+ case WDIOC_GETSUPPORT:
+ if (copy_to_user(argp, &wdinfo, sizeof(wdinfo)))
+ return -EFAULT;
+ return 0;
+
+ case WDIOC_GETSTATUS:
+ i = wdrtas_get_status();
+ return put_user(i, argp);
+
+ case WDIOC_GETBOOTSTATUS:
+ i = wdrtas_get_boot_status();
+ return put_user(i, argp);
+
+ case WDIOC_GETTEMP:
+ if (wdrtas_token_get_sensor_state == RTAS_UNKNOWN_SERVICE)
+ return -EOPNOTSUPP;
+
+ i = wdrtas_get_temperature();
+ return put_user(i, argp);
+
+ case WDIOC_SETOPTIONS:
+ if (get_user(i, argp))
+ return -EFAULT;
+ if (i & WDIOS_DISABLECARD)
+ wdrtas_timer_stop();
+ if (i & WDIOS_ENABLECARD) {
+ wdrtas_timer_keepalive();
+ wdrtas_timer_start();
+ }
+ if (i & WDIOS_TEMPPANIC) {
+ /* not implemented. Done by H8 */
+ }
+ return 0;
+
+ case WDIOC_KEEPALIVE:
+ wdrtas_timer_keepalive();
+ return 0;
+
+ case WDIOC_SETTIMEOUT:
+ if (get_user(i, argp))
+ return -EFAULT;
+
+ if (wdrtas_set_interval(i))
+ return -EINVAL;
+
+ wdrtas_timer_keepalive();
+
+ if (wdrtas_token_get_sp == RTAS_UNKNOWN_SERVICE)
+ wdrtas_interval = i;
+ else
+ wdrtas_interval = wdrtas_get_interval(i);
+ /* fallthrough */
+
+ case WDIOC_GETTIMEOUT:
+ return put_user(wdrtas_interval, argp);
+
+ default:
+ return -ENOIOCTLCMD;
+ }
+}
+
+/**
+ * wdrtas_open - open function of watchdog device
+ * @inode: inode structure
+ * @file: file structure
+ *
+ * returns 0 on success, -EBUSY if the file has been opened already, <0 on
+ * other failures
+ *
+ * function called when watchdog device is opened
+ */
+static int
+wdrtas_open(struct inode *inode, struct file *file)
+{
+ /* only open once */
+ if (atomic_inc_return(&wdrtas_miscdev_open) > 1) {
+ atomic_dec(&wdrtas_miscdev_open);
+ return -EBUSY;
+ }
+
+ wdrtas_timer_start();
+ wdrtas_timer_keepalive();
+
+ return nonseekable_open(inode, file);
+}
+
+/**
+ * wdrtas_close - close function of watchdog device
+ * @inode: inode structure
+ * @file: file structure
+ *
+ * returns 0 on success
+ *
+ * close function. Always succeeds
+ */
+static int
+wdrtas_close(struct inode *inode, struct file *file)
+{
+ /* only stop watchdog, if this was announced using 'V' before */
+ if (wdrtas_expect_close == WDRTAS_MAGIC_CHAR)
+ wdrtas_timer_stop();
+ else {
+ printk(KERN_WARNING "wdrtas: got unexpected close. Watchdog "
+ "not stopped.\n");
+ wdrtas_timer_keepalive();
+ }
+
+ wdrtas_expect_close = 0;
+ atomic_dec(&wdrtas_miscdev_open);
+ return 0;
+}
+
+/**
+ * wdrtas_temp_read - gives back the temperature in fahrenheit
+ * @file: file structure
+ * @buf: user buffer
+ * @count: number of bytes to be read
+ * @ppos: position in file
+ *
+ * returns always 1 or -EFAULT in case of user space copy failures, <0 on
+ * other failures
+ *
+ * wdrtas_temp_read gives the temperature to the users by copying this
+ * value as one byte into the user space buffer. The unit is Fahrenheit...
+ */
+static ssize_t
+wdrtas_temp_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ int temperature = 0;
+
+ temperature = wdrtas_get_temperature();
+ if (temperature < 0)
+ return temperature;
+
+ if (copy_to_user(buf, &temperature, 1))
+ return -EFAULT;
+
+ return 1;
+}
+
+/**
+ * wdrtas_temp_open - open function of temperature device
+ * @inode: inode structure
+ * @file: file structure
+ *
+ * returns 0 on success, <0 on failure
+ *
+ * function called when temperature device is opened
+ */
+static int
+wdrtas_temp_open(struct inode *inode, struct file *file)
+{
+ return nonseekable_open(inode, file);
+}
+
+/**
+ * wdrtas_temp_close - close function of temperature device
+ * @inode: inode structure
+ * @file: file structure
+ *
+ * returns 0 on success
+ *
+ * close function. Always succeeds
+ */
+static int
+wdrtas_temp_close(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+/**
+ * wdrtas_reboot - reboot notifier function
+ * @nb: notifier block structure
+ * @code: reboot code
+ * @ptr: unused
+ *
+ * returns NOTIFY_DONE
+ *
+ * wdrtas_reboot stops the watchdog in case of a reboot
+ */
+static int
+wdrtas_reboot(struct notifier_block *this, unsigned long code, void *ptr)
+{
+ if ( (code==SYS_DOWN) || (code==SYS_HALT) )
+ wdrtas_timer_stop();
+
+ return NOTIFY_DONE;
+}
+
+/*** initialization stuff */
+
+static struct file_operations wdrtas_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .write = wdrtas_write,
+ .ioctl = wdrtas_ioctl,
+ .open = wdrtas_open,
+ .release = wdrtas_close,
+};
+
+static struct miscdevice wdrtas_miscdev = {
+ .minor = WATCHDOG_MINOR,
+ .name = "watchdog",
+ .fops = &wdrtas_fops,
+};
+
+static struct file_operations wdrtas_temp_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .read = wdrtas_temp_read,
+ .open = wdrtas_temp_open,
+ .release = wdrtas_temp_close,
+};
+
+static struct miscdevice wdrtas_tempdev = {
+ .minor = TEMP_MINOR,
+ .name = "temperature",
+ .fops = &wdrtas_temp_fops,
+};
+
+static struct notifier_block wdrtas_notifier = {
+ .notifier_call = wdrtas_reboot,
+};
+
+/**
+ * wdrtas_get_tokens - reads in RTAS tokens
+ *
+ * returns 0 on succes, <0 on failure
+ *
+ * wdrtas_get_tokens reads in the tokens for the RTAS calls used in
+ * this watchdog driver. It tolerates, if "get-sensor-state" and
+ * "ibm,get-system-parameter" are not available.
+ */
+static int
+wdrtas_get_tokens(void)
+{
+ wdrtas_token_get_sensor_state = rtas_token("get-sensor-state");
+ if (wdrtas_token_get_sensor_state == RTAS_UNKNOWN_SERVICE) {
+ printk(KERN_WARNING "wdrtas: couldn't get token for "
+ "get-sensor-state. Trying to continue without "
+ "temperature support.\n");
+ }
+
+ wdrtas_token_get_sp = rtas_token("ibm,get-system-parameter");
+ if (wdrtas_token_get_sp == RTAS_UNKNOWN_SERVICE) {
+ printk(KERN_WARNING "wdrtas: couldn't get token for "
+ "ibm,get-system-parameter. Trying to continue with "
+ "a default timeout value of %i seconds.\n",
+ WDRTAS_DEFAULT_INTERVAL);
+ }
+
+ wdrtas_token_set_indicator = rtas_token("set-indicator");
+ if (wdrtas_token_set_indicator == RTAS_UNKNOWN_SERVICE) {
+ printk(KERN_ERR "wdrtas: couldn't get token for "
+ "set-indicator. Terminating watchdog code.\n");
+ return -EIO;
+ }
+
+ wdrtas_token_event_scan = rtas_token("event-scan");
+ if (wdrtas_token_event_scan == RTAS_UNKNOWN_SERVICE) {
+ printk(KERN_ERR "wdrtas: couldn't get token for event-scan. "
+ "Terminating watchdog code.\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/**
+ * wdrtas_unregister_devs - unregisters the misc dev handlers
+ *
+ * wdrtas_register_devs unregisters the watchdog and temperature watchdog
+ * misc devs
+ */
+static void
+wdrtas_unregister_devs(void)
+{
+ misc_deregister(&wdrtas_miscdev);
+ if (wdrtas_token_get_sensor_state != RTAS_UNKNOWN_SERVICE)
+ misc_deregister(&wdrtas_tempdev);
+}
+
+/**
+ * wdrtas_register_devs - registers the misc dev handlers
+ *
+ * returns 0 on succes, <0 on failure
+ *
+ * wdrtas_register_devs registers the watchdog and temperature watchdog
+ * misc devs
+ */
+static int
+wdrtas_register_devs(void)
+{
+ int result;
+
+ result = misc_register(&wdrtas_miscdev);
+ if (result) {
+ printk(KERN_ERR "wdrtas: couldn't register watchdog misc "
+ "device. Terminating watchdog code.\n");
+ return result;
+ }
+
+ if (wdrtas_token_get_sensor_state != RTAS_UNKNOWN_SERVICE) {
+ result = misc_register(&wdrtas_tempdev);
+ if (result) {
+ printk(KERN_WARNING "wdrtas: couldn't register "
+ "watchdog temperature misc device. Continuing "
+ "without temperature support.\n");
+ wdrtas_token_get_sensor_state = RTAS_UNKNOWN_SERVICE;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * wdrtas_init - init function of the watchdog driver
+ *
+ * returns 0 on succes, <0 on failure
+ *
+ * registers the file handlers and the reboot notifier
+ */
+static int __init
+wdrtas_init(void)
+{
+ if (wdrtas_get_tokens())
+ return -ENODEV;
+
+ if (wdrtas_register_devs())
+ return -ENODEV;
+
+ if (register_reboot_notifier(&wdrtas_notifier)) {
+ printk(KERN_ERR "wdrtas: could not register reboot notifier. "
+ "Terminating watchdog code.\n");
+ wdrtas_unregister_devs();
+ return -ENODEV;
+ }
+
+ if (wdrtas_token_get_sp == RTAS_UNKNOWN_SERVICE)
+ wdrtas_interval = WDRTAS_DEFAULT_INTERVAL;
+ else
+ wdrtas_interval = wdrtas_get_interval(WDRTAS_DEFAULT_INTERVAL);
+
+ return 0;
+}
+
+/**
+ * wdrtas_exit - exit function of the watchdog driver
+ *
+ * unregisters the file handlers and the reboot notifier
+ */
+static void __exit
+wdrtas_exit(void)
+{
+ if (!wdrtas_nowayout)
+ wdrtas_timer_stop();
+
+ wdrtas_unregister_devs();
+
+ unregister_reboot_notifier(&wdrtas_notifier);
+}
+
+module_init(wdrtas_init);
+module_exit(wdrtas_exit);
diff --git a/drivers/firmware/pcdp.c b/drivers/firmware/pcdp.c
index df1b721154d..839b44a7e08 100644
--- a/drivers/firmware/pcdp.c
+++ b/drivers/firmware/pcdp.c
@@ -23,12 +23,15 @@ setup_serial_console(struct pcdp_uart *uart)
{
#ifdef CONFIG_SERIAL_8250_CONSOLE
int mmio;
- static char options[64];
+ static char options[64], *p = options;
mmio = (uart->addr.address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY);
- snprintf(options, sizeof(options), "console=uart,%s,0x%lx,%lun%d",
- mmio ? "mmio" : "io", uart->addr.address, uart->baud,
- uart->bits ? uart->bits : 8);
+ p += sprintf(p, "console=uart,%s,0x%lx",
+ mmio ? "mmio" : "io", uart->addr.address);
+ if (uart->baud)
+ p += sprintf(p, ",%lu", uart->baud);
+ if (uart->bits)
+ p += sprintf(p, "n%d", uart->bits);
return early_serial_console_init(options);
#else
diff --git a/drivers/firmware/pcdp.h b/drivers/firmware/pcdp.h
index 863bb6f768c..1dc7c88b7b4 100644
--- a/drivers/firmware/pcdp.h
+++ b/drivers/firmware/pcdp.h
@@ -2,7 +2,7 @@
* Definitions for PCDP-defined console devices
*
* v1.0a: http://www.dig64.org/specifications/DIG64_HCDPv10a_01.pdf
- * v2.0: http://www.dig64.org/specifications/DIG64_HCDPv20_042804.pdf
+ * v2.0: http://www.dig64.org/specifications/DIG64_PCDPv20.pdf
*
* (c) Copyright 2002, 2004 Hewlett-Packard Development Company, L.P.
* Khalid Aziz <khalid.aziz@hp.com>
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 39f3e9101ed..0a31cfda08a 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -2657,16 +2657,63 @@ int ide_cdrom_lock_door (struct cdrom_device_info *cdi, int lock)
}
static
+int ide_cdrom_get_capabilities(ide_drive_t *drive, struct atapi_capabilities_page *cap)
+{
+ struct cdrom_info *info = drive->driver_data;
+ struct cdrom_device_info *cdi = &info->devinfo;
+ struct packet_command cgc;
+ int stat, attempts = 3, size = sizeof(*cap);
+
+ /*
+ * ACER50 (and others?) require the full spec length mode sense
+ * page capabilities size, but older drives break.
+ */
+ if (!(!strcmp(drive->id->model, "ATAPI CD ROM DRIVE 50X MAX") ||
+ !strcmp(drive->id->model, "WPI CDS-32X")))
+ size -= sizeof(cap->pad);
+
+ init_cdrom_command(&cgc, cap, size, CGC_DATA_UNKNOWN);
+ do { /* we seem to get stat=0x01,err=0x00 the first time (??) */
+ stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0);
+ if (!stat)
+ break;
+ } while (--attempts);
+ return stat;
+}
+
+static
+void ide_cdrom_update_speed (ide_drive_t *drive, struct atapi_capabilities_page *cap)
+{
+ /* The ACER/AOpen 24X cdrom has the speed fields byte-swapped */
+ if (!drive->id->model[0] &&
+ !strncmp(drive->id->fw_rev, "241N", 4)) {
+ CDROM_STATE_FLAGS(drive)->current_speed =
+ (((unsigned int)cap->curspeed) + (176/2)) / 176;
+ CDROM_CONFIG_FLAGS(drive)->max_speed =
+ (((unsigned int)cap->maxspeed) + (176/2)) / 176;
+ } else {
+ CDROM_STATE_FLAGS(drive)->current_speed =
+ (ntohs(cap->curspeed) + (176/2)) / 176;
+ CDROM_CONFIG_FLAGS(drive)->max_speed =
+ (ntohs(cap->maxspeed) + (176/2)) / 176;
+ }
+}
+
+static
int ide_cdrom_select_speed (struct cdrom_device_info *cdi, int speed)
{
ide_drive_t *drive = (ide_drive_t*) cdi->handle;
struct request_sense sense;
+ struct atapi_capabilities_page cap;
int stat;
if ((stat = cdrom_select_speed(drive, speed, &sense)) < 0)
return stat;
- cdi->speed = CDROM_STATE_FLAGS(drive)->current_speed;
+ if (!ide_cdrom_get_capabilities(drive, &cap)) {
+ ide_cdrom_update_speed(drive, &cap);
+ cdi->speed = CDROM_STATE_FLAGS(drive)->current_speed;
+ }
return 0;
}
@@ -2869,31 +2916,6 @@ static int ide_cdrom_register (ide_drive_t *drive, int nslots)
}
static
-int ide_cdrom_get_capabilities(ide_drive_t *drive, struct atapi_capabilities_page *cap)
-{
- struct cdrom_info *info = drive->driver_data;
- struct cdrom_device_info *cdi = &info->devinfo;
- struct packet_command cgc;
- int stat, attempts = 3, size = sizeof(*cap);
-
- /*
- * ACER50 (and others?) require the full spec length mode sense
- * page capabilities size, but older drives break.
- */
- if (!(!strcmp(drive->id->model, "ATAPI CD ROM DRIVE 50X MAX") ||
- !strcmp(drive->id->model, "WPI CDS-32X")))
- size -= sizeof(cap->pad);
-
- init_cdrom_command(&cgc, cap, size, CGC_DATA_UNKNOWN);
- do { /* we seem to get stat=0x01,err=0x00 the first time (??) */
- stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0);
- if (!stat)
- break;
- } while (--attempts);
- return stat;
-}
-
-static
int ide_cdrom_probe_capabilities (ide_drive_t *drive)
{
struct cdrom_info *info = drive->driver_data;
@@ -2978,20 +3000,7 @@ int ide_cdrom_probe_capabilities (ide_drive_t *drive)
}
}
- /* The ACER/AOpen 24X cdrom has the speed fields byte-swapped */
- if (!drive->id->model[0] &&
- !strncmp(drive->id->fw_rev, "241N", 4)) {
- CDROM_STATE_FLAGS(drive)->current_speed =
- (((unsigned int)cap.curspeed) + (176/2)) / 176;
- CDROM_CONFIG_FLAGS(drive)->max_speed =
- (((unsigned int)cap.maxspeed) + (176/2)) / 176;
- } else {
- CDROM_STATE_FLAGS(drive)->current_speed =
- (ntohs(cap.curspeed) + (176/2)) / 176;
- CDROM_CONFIG_FLAGS(drive)->max_speed =
- (ntohs(cap.maxspeed) + (176/2)) / 176;
- }
-
+ ide_cdrom_update_speed(drive, &cap);
/* don't print speed if the drive reported 0.
*/
printk(KERN_INFO "%s: ATAPI", drive->name);
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 3302cd8eab4..d6f934886b0 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -1215,7 +1215,8 @@ static int ide_disk_probe(struct device *dev)
if (!idkp)
goto failed;
- g = alloc_disk(1 << PARTN_BITS);
+ g = alloc_disk_node(1 << PARTN_BITS,
+ pcibus_to_node(drive->hwif->pci_dev->bus));
if (!g)
goto out_free_idkp;
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index c949e98df4b..9eab6426148 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -661,10 +661,12 @@ static void idefloppy_output_buffers (ide_drive_t *drive, idefloppy_pc_t *pc, un
idefloppy_do_end_request(drive, 1, done >> 9);
+#if IDEFLOPPY_DEBUG_BUGS
if (bcount) {
printk(KERN_ERR "%s: leftover data in idefloppy_output_buffers, bcount == %d\n", drive->name, bcount);
idefloppy_write_zeros(drive, bcount);
}
+#endif
}
static void idefloppy_update_buffers (ide_drive_t *drive, idefloppy_pc_t *pc)
@@ -1048,6 +1050,9 @@ static ide_startstop_t idefloppy_issue_pc (ide_drive_t *drive, idefloppy_pc_t *p
atapi_bcount_t bcount;
ide_handler_t *pkt_xfer_routine;
+#if 0 /* Accessing floppy->pc is not valid here, the previous pc may be gone
+ and have lived on another thread's stack; that stack may have become
+ unmapped meanwhile (CONFIG_DEBUG_PAGEALLOC). */
#if IDEFLOPPY_DEBUG_BUGS
if (floppy->pc->c[0] == IDEFLOPPY_REQUEST_SENSE_CMD &&
pc->c[0] == IDEFLOPPY_REQUEST_SENSE_CMD) {
@@ -1055,6 +1060,7 @@ static ide_startstop_t idefloppy_issue_pc (ide_drive_t *drive, idefloppy_pc_t *p
"Two request sense in serial were issued\n");
}
#endif /* IDEFLOPPY_DEBUG_BUGS */
+#endif
if (floppy->failed_pc == NULL &&
pc->c[0] != IDEFLOPPY_REQUEST_SENSE_CMD)
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 5d876f53c69..7df85af7537 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -977,8 +977,9 @@ static int ide_init_queue(ide_drive_t *drive)
* limits and LBA48 we could raise it but as yet
* do not.
*/
-
- q = blk_init_queue(do_ide_request, &ide_lock);
+
+ q = blk_init_queue_node(do_ide_request, &ide_lock,
+ pcibus_to_node(drive->hwif->pci_dev->bus));
if (!q)
return 1;
@@ -1095,7 +1096,8 @@ static int init_irq (ide_hwif_t *hwif)
hwgroup->hwif->next = hwif;
spin_unlock_irq(&ide_lock);
} else {
- hwgroup = kmalloc(sizeof(ide_hwgroup_t),GFP_KERNEL);
+ hwgroup = kmalloc_node(sizeof(ide_hwgroup_t), GFP_KERNEL,
+ pcibus_to_node(hwif->drives[0].hwif->pci_dev->bus));
if (!hwgroup)
goto out_up;
diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c
index f6b85222ba3..79ca3846915 100644
--- a/drivers/input/serio/serport.c
+++ b/drivers/input/serio/serport.c
@@ -257,7 +257,7 @@ static int __init serport_init(void)
static void __exit serport_exit(void)
{
- tty_register_ldisc(N_MOUSE, NULL);
+ tty_unregister_ldisc(N_MOUSE);
}
module_init(serport_init);
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index ee3c869d970..200a0688f71 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -122,14 +122,6 @@ static struct hash_cell *__get_uuid_cell(const char *str)
/*-----------------------------------------------------------------
* Inserting, removing and renaming a device.
*---------------------------------------------------------------*/
-static inline char *kstrdup(const char *str)
-{
- char *r = kmalloc(strlen(str) + 1, GFP_KERNEL);
- if (r)
- strcpy(r, str);
- return r;
-}
-
static struct hash_cell *alloc_cell(const char *name, const char *uuid,
struct mapped_device *md)
{
@@ -139,7 +131,7 @@ static struct hash_cell *alloc_cell(const char *name, const char *uuid,
if (!hc)
return NULL;
- hc->name = kstrdup(name);
+ hc->name = kstrdup(name, GFP_KERNEL);
if (!hc->name) {
kfree(hc);
return NULL;
@@ -149,7 +141,7 @@ static struct hash_cell *alloc_cell(const char *name, const char *uuid,
hc->uuid = NULL;
else {
- hc->uuid = kstrdup(uuid);
+ hc->uuid = kstrdup(uuid, GFP_KERNEL);
if (!hc->uuid) {
kfree(hc->name);
kfree(hc);
@@ -273,7 +265,7 @@ static int dm_hash_rename(const char *old, const char *new)
/*
* duplicate new.
*/
- new_name = kstrdup(new);
+ new_name = kstrdup(new, GFP_KERNEL);
if (!new_name)
return -ENOMEM;
diff --git a/drivers/net/appletalk/ltpc.c b/drivers/net/appletalk/ltpc.c
index db4f369637b..d5666c37cb0 100644
--- a/drivers/net/appletalk/ltpc.c
+++ b/drivers/net/appletalk/ltpc.c
@@ -1109,8 +1109,7 @@ struct net_device * __init ltpc_probe(void)
inb_p(io+1);
inb_p(io+3);
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(2*HZ/100);
+ msleep(20);
inb_p(io+0);
inb_p(io+2);
@@ -1120,8 +1119,7 @@ struct net_device * __init ltpc_probe(void)
inb_p(io+5); /* enable dma */
inb_p(io+6); /* tri-state interrupt line */
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(HZ);
+ ssleep(1);
/* now, figure out which dma channel we're using, unless it's
already been specified */
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 325495b8b60..137226d98d4 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -2307,6 +2307,7 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
tso = e1000_tso(adapter, skb);
if (tso < 0) {
dev_kfree_skb_any(skb);
+ spin_unlock_irqrestore(&adapter->tx_lock, flags);
return NETDEV_TX_OK;
}
diff --git a/drivers/net/hamradio/6pack.c b/drivers/net/hamradio/6pack.c
index 89454915b85..e44f8e9055e 100644
--- a/drivers/net/hamradio/6pack.c
+++ b/drivers/net/hamradio/6pack.c
@@ -848,7 +848,7 @@ static void __exit sixpack_exit_driver(void)
{
int ret;
- if ((ret = tty_register_ldisc(N_6PACK, NULL)))
+ if ((ret = tty_unregister_ldisc(N_6PACK)))
printk(msg_unregfail, ret);
}
diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index 62790511098..3035422f5ad 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -934,7 +934,7 @@ static void __exit mkiss_exit_driver(void)
kfree(ax25_ctrls);
ax25_ctrls = NULL;
- if ((i = tty_register_ldisc(N_AX25, NULL)))
+ if ((i = tty_unregister_ldisc(N_AX25)))
printk(KERN_ERR "mkiss: can't unregister line discipline (err = %d)\n", i);
}
diff --git a/drivers/net/irda/irtty-sir.c b/drivers/net/irda/irtty-sir.c
index 7d23aa37590..b8d112348ba 100644
--- a/drivers/net/irda/irtty-sir.c
+++ b/drivers/net/irda/irtty-sir.c
@@ -626,7 +626,7 @@ static void __exit irtty_sir_cleanup(void)
{
int err;
- if ((err = tty_register_ldisc(N_IRDA, NULL))) {
+ if ((err = tty_unregister_ldisc(N_IRDA))) {
IRDA_ERROR("%s(), can't unregister line discipline (err = %d)\n",
__FUNCTION__, err);
}
diff --git a/drivers/net/ppp_async.c b/drivers/net/ppp_async.c
index 33b9d79b1aa..5e48b9ab304 100644
--- a/drivers/net/ppp_async.c
+++ b/drivers/net/ppp_async.c
@@ -1025,7 +1025,7 @@ static void async_lcp_peek(struct asyncppp *ap, unsigned char *data,
static void __exit ppp_async_cleanup(void)
{
- if (tty_register_ldisc(N_PPP, NULL) != 0)
+ if (tty_unregister_ldisc(N_PPP) != 0)
printk(KERN_ERR "failed to unregister PPP line discipline\n");
}
diff --git a/drivers/net/ppp_synctty.c b/drivers/net/ppp_synctty.c
index 7d0150b4c62..fd9f5018035 100644
--- a/drivers/net/ppp_synctty.c
+++ b/drivers/net/ppp_synctty.c
@@ -793,7 +793,7 @@ err:
static void __exit
ppp_sync_cleanup(void)
{
- if (tty_register_ldisc(N_SYNC_PPP, NULL) != 0)
+ if (tty_unregister_ldisc(N_SYNC_PPP) != 0)
printk(KERN_ERR "failed to unregister Sync PPP line discipline\n");
}
diff --git a/drivers/net/slip.c b/drivers/net/slip.c
index 8f7841c0374..19112712daf 100644
--- a/drivers/net/slip.c
+++ b/drivers/net/slip.c
@@ -1430,7 +1430,7 @@ static void __exit slip_exit(void)
kfree(slip_devs);
slip_devs = NULL;
- if ((i = tty_register_ldisc(N_SLIP, NULL)))
+ if ((i = tty_unregister_ldisc(N_SLIP)))
{
printk(KERN_ERR "SLIP: can't unregister line discipline (err = %d)\n", i);
}
diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c
index 1c540d82555..bdf672c4818 100644
--- a/drivers/net/wan/x25_asy.c
+++ b/drivers/net/wan/x25_asy.c
@@ -829,7 +829,7 @@ static void __exit exit_x25_asy(void)
}
kfree(x25_asy_devs);
- tty_register_ldisc(N_X25, NULL);
+ tty_unregister_ldisc(N_X25);
}
module_init(init_x25_asy);
diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c
index ec8cf29ffce..6c42b573a95 100644
--- a/drivers/net/wireless/strip.c
+++ b/drivers/net/wireless/strip.c
@@ -2828,7 +2828,7 @@ static void __exit strip_exit_driver(void)
/* Unregister with the /proc/net file here. */
proc_net_remove("strip");
- if ((i = tty_register_ldisc(N_STRIP, NULL)))
+ if ((i = tty_unregister_ldisc(N_STRIP)))
printk(KERN_ERR "STRIP: can't unregister line discipline (err = %d)\n", i);
printk(signoff);
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index e7f3bcb7900..80edfa3abd2 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -2751,7 +2751,6 @@ enum parport_pc_pci_cards {
netmos_9755,
netmos_9805,
netmos_9815,
- netmos_9855,
};
@@ -2826,7 +2825,6 @@ static struct parport_pc_pci {
/* netmos_9755 */ { 2, { { 0, 1 }, { 2, 3 },} }, /* untested */
/* netmos_9805 */ { 1, { { 0, -1 }, } }, /* untested */
/* netmos_9815 */ { 2, { { 0, -1 }, { 2, -1 }, } }, /* untested */
- /* netmos_9855 */ { 2, { { 0, -1 }, { 2, -1 }, } }, /* untested */
};
static struct pci_device_id parport_pc_pci_tbl[] = {
@@ -2907,8 +2905,6 @@ static struct pci_device_id parport_pc_pci_tbl[] = {
PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9805 },
{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9815,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9815 },
- { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9855 },
{ 0, } /* terminate list */
};
MODULE_DEVICE_TABLE(pci,parport_pc_pci_tbl);
diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c
index 6715a17b5d0..00498e2f120 100644
--- a/drivers/parport/parport_serial.c
+++ b/drivers/parport/parport_serial.c
@@ -34,6 +34,7 @@ enum parport_pc_pci_cards {
titan_110l = 0,
titan_210l,
netmos_9xx5_combo,
+ netmos_9855,
avlab_1s1p,
avlab_1s1p_650,
avlab_1s1p_850,
@@ -87,6 +88,7 @@ static struct parport_pc_pci cards[] __devinitdata = {
/* titan_110l */ { 1, { { 3, -1 }, } },
/* titan_210l */ { 1, { { 3, -1 }, } },
/* netmos_9xx5_combo */ { 1, { { 2, -1 }, }, netmos_parallel_init },
+ /* netmos_9855 */ { 1, { { 0, -1 }, }, netmos_parallel_init },
/* avlab_1s1p */ { 1, { { 1, 2}, } },
/* avlab_1s1p_650 */ { 1, { { 1, 2}, } },
/* avlab_1s1p_850 */ { 1, { { 1, 2}, } },
@@ -120,7 +122,7 @@ static struct pci_device_id parport_serial_pci_tbl[] = {
{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9845,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9855 },
/* PCI_VENDOR_ID_AVLAB/Intek21 has another bunch of cards ...*/
{ 0x14db, 0x2110, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p},
{ 0x14db, 0x2111, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p_650},
@@ -207,6 +209,7 @@ static struct pci_board_no_ids pci_boards[] __devinitdata = {
/* titan_110l */ { SPCI_FL_BASE1 | SPCI_FL_BASE_TABLE, 1, 921600 },
/* titan_210l */ { SPCI_FL_BASE1 | SPCI_FL_BASE_TABLE, 2, 921600 },
/* netmos_9xx5_combo */ { SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
+/* netmos_9855 */ { SPCI_FL_BASE2 | SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
/* avlab_1s1p (n/t) */ { SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
/* avlab_1s1p_650 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
/* avlab_1s1p_850 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
diff --git a/drivers/parport/probe.c b/drivers/parport/probe.c
index c94963145e1..6e6f42d01e6 100644
--- a/drivers/parport/probe.c
+++ b/drivers/parport/probe.c
@@ -48,14 +48,6 @@ static void pretty_print(struct parport *port, int device)
printk("\n");
}
-static char *strdup(char *str)
-{
- int n = strlen(str)+1;
- char *s = kmalloc(n, GFP_KERNEL);
- if (!s) return NULL;
- return strcpy(s, str);
-}
-
static void parse_data(struct parport *port, int device, char *str)
{
char *txt = kmalloc(strlen(str)+1, GFP_KERNEL);
@@ -88,16 +80,16 @@ static void parse_data(struct parport *port, int device, char *str)
if (!strcmp(p, "MFG") || !strcmp(p, "MANUFACTURER")) {
if (info->mfr)
kfree (info->mfr);
- info->mfr = strdup(sep);
+ info->mfr = kstrdup(sep, GFP_KERNEL);
} else if (!strcmp(p, "MDL") || !strcmp(p, "MODEL")) {
if (info->model)
kfree (info->model);
- info->model = strdup(sep);
+ info->model = kstrdup(sep, GFP_KERNEL);
} else if (!strcmp(p, "CLS") || !strcmp(p, "CLASS")) {
int i;
if (info->class_name)
kfree (info->class_name);
- info->class_name = strdup(sep);
+ info->class_name = kstrdup(sep, GFP_KERNEL);
for (u = sep; *u; u++)
*u = toupper(*u);
for (i = 0; classes[i].token; i++) {
@@ -112,7 +104,7 @@ static void parse_data(struct parport *port, int device, char *str)
!strcmp(p, "COMMAND SET")) {
if (info->cmdset)
kfree (info->cmdset);
- info->cmdset = strdup(sep);
+ info->cmdset = kstrdup(sep, GFP_KERNEL);
/* if it speaks printer language, it's
probably a printer */
if (strstr(sep, "PJL") || strstr(sep, "PCL"))
@@ -120,7 +112,7 @@ static void parse_data(struct parport *port, int device, char *str)
} else if (!strcmp(p, "DES") || !strcmp(p, "DESCRIPTION")) {
if (info->description)
kfree (info->description);
- info->description = strdup(sep);
+ info->description = kstrdup(sep, GFP_KERNEL);
}
}
rock_on:
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 03fc885db1c..d136b3c8fac 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -508,6 +508,10 @@ static int socket_setup(struct pcmcia_socket *skt, int initial_delay)
cs_err(skt, "unsupported voltage key.\n");
return CS_BAD_TYPE;
}
+
+ if (skt->power_hook)
+ skt->power_hook(skt, HOOK_POWER_PRE);
+
skt->socket.flags = 0;
skt->ops->set_socket(skt, &skt->socket);
@@ -522,7 +526,12 @@ static int socket_setup(struct pcmcia_socket *skt, int initial_delay)
return CS_BAD_TYPE;
}
- return socket_reset(skt);
+ status = socket_reset(skt);
+
+ if (skt->power_hook)
+ skt->power_hook(skt, HOOK_POWER_POST);
+
+ return status;
}
/*
diff --git a/drivers/pcmcia/ti113x.h b/drivers/pcmcia/ti113x.h
index a8a1d104524..c7ba99871ac 100644
--- a/drivers/pcmcia/ti113x.h
+++ b/drivers/pcmcia/ti113x.h
@@ -611,6 +611,170 @@ out:
}
}
+
+/* Returns true value if the second slot of a two-slot controller is empty */
+static int ti12xx_2nd_slot_empty(struct yenta_socket *socket)
+{
+ struct pci_dev *func;
+ struct yenta_socket *slot2;
+ int devfn;
+ unsigned int state;
+ int ret = 1;
+
+ /* catch the two-slot controllers */
+ switch (socket->dev->device) {
+ case PCI_DEVICE_ID_TI_1220:
+ case PCI_DEVICE_ID_TI_1221:
+ case PCI_DEVICE_ID_TI_1225:
+ case PCI_DEVICE_ID_TI_1251A:
+ case PCI_DEVICE_ID_TI_1251B:
+ case PCI_DEVICE_ID_TI_1420:
+ case PCI_DEVICE_ID_TI_1450:
+ case PCI_DEVICE_ID_TI_1451A:
+ case PCI_DEVICE_ID_TI_1520:
+ case PCI_DEVICE_ID_TI_1620:
+ case PCI_DEVICE_ID_TI_4520:
+ case PCI_DEVICE_ID_TI_4450:
+ case PCI_DEVICE_ID_TI_4451:
+ /*
+ * there are way more, but they need to be added in yenta_socket.c
+ * and pci_ids.h first anyway.
+ */
+ break;
+
+ /* single-slot controllers have the 2nd slot empty always :) */
+ default:
+ return 1;
+ }
+
+ /* get other slot */
+ devfn = socket->dev->devfn & ~0x07;
+ func = pci_get_slot(socket->dev->bus,
+ (socket->dev->devfn & 0x07) ? devfn : devfn | 0x01);
+ if (!func)
+ return 1;
+
+ slot2 = pci_get_drvdata(func);
+ if (!slot2)
+ goto out;
+
+ /* check state */
+ yenta_get_status(&socket->socket, &state);
+ if (state & SS_DETECT) {
+ ret = 0;
+ goto out;
+ }
+
+out:
+ pci_dev_put(func);
+ return ret;
+}
+
+/*
+ * TI specifiy parts for the power hook.
+ *
+ * some TI's with some CB's produces interrupt storm on power on. it has been
+ * seen with atheros wlan cards on TI1225 and TI1410. solution is simply to
+ * disable any CB interrupts during this time.
+ */
+static int ti12xx_power_hook(struct pcmcia_socket *sock, int operation)
+{
+ struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
+ u32 mfunc, devctl, sysctl;
+ u8 gpio3;
+
+ /* only POWER_PRE and POWER_POST are interesting */
+ if ((operation != HOOK_POWER_PRE) && (operation != HOOK_POWER_POST))
+ return 0;
+
+ devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
+ sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
+ mfunc = config_readl(socket, TI122X_MFUNC);
+
+ /*
+ * all serial/tied: only disable when modparm set. always doing it
+ * would mean a regression for working setups 'cos it disables the
+ * interrupts for both both slots on 2-slot controllers
+ * (and users of single slot controllers where it's save have to
+ * live with setting the modparm, most don't have to anyway)
+ */
+ if (((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) &&
+ (pwr_irqs_off || ti12xx_2nd_slot_empty(socket))) {
+ switch (socket->dev->device) {
+ case PCI_DEVICE_ID_TI_1250:
+ case PCI_DEVICE_ID_TI_1251A:
+ case PCI_DEVICE_ID_TI_1251B:
+ case PCI_DEVICE_ID_TI_1450:
+ case PCI_DEVICE_ID_TI_1451A:
+ case PCI_DEVICE_ID_TI_4450:
+ case PCI_DEVICE_ID_TI_4451:
+ /* these chips have no IRQSER setting in MFUNC3 */
+ break;
+
+ default:
+ if (operation == HOOK_POWER_PRE)
+ mfunc = (mfunc & ~TI122X_MFUNC3_MASK);
+ else
+ mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER;
+ }
+
+ return 0;
+ }
+
+ /* do the job differently for func0/1 */
+ if ((PCI_FUNC(socket->dev->devfn) == 0) ||
+ ((sysctl & TI122X_SCR_INTRTIE) &&
+ (pwr_irqs_off || ti12xx_2nd_slot_empty(socket)))) {
+ /* some bridges are different */
+ switch (socket->dev->device) {
+ case PCI_DEVICE_ID_TI_1250:
+ case PCI_DEVICE_ID_TI_1251A:
+ case PCI_DEVICE_ID_TI_1251B:
+ case PCI_DEVICE_ID_TI_1450:
+ /* those oldies use gpio3 for INTA */
+ gpio3 = config_readb(socket, TI1250_GPIO3_CONTROL);
+ if (operation == HOOK_POWER_PRE)
+ gpio3 = (gpio3 & ~TI1250_GPIO_MODE_MASK) | 0x40;
+ else
+ gpio3 &= ~TI1250_GPIO_MODE_MASK;
+ config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3);
+ break;
+
+ default:
+ /* all new bridges are the same */
+ if (operation == HOOK_POWER_PRE)
+ mfunc &= ~TI122X_MFUNC0_MASK;
+ else
+ mfunc |= TI122X_MFUNC0_INTA;
+ config_writel(socket, TI122X_MFUNC, mfunc);
+ }
+ } else {
+ switch (socket->dev->device) {
+ case PCI_DEVICE_ID_TI_1251A:
+ case PCI_DEVICE_ID_TI_1251B:
+ case PCI_DEVICE_ID_TI_1450:
+ /* those have INTA elsewhere and INTB in MFUNC0 */
+ if (operation == HOOK_POWER_PRE)
+ mfunc &= ~TI122X_MFUNC0_MASK;
+ else
+ mfunc |= TI125X_MFUNC0_INTB;
+ config_writel(socket, TI122X_MFUNC, mfunc);
+
+ break;
+
+ default:
+ /* all new bridges are the same */
+ if (operation == HOOK_POWER_PRE)
+ mfunc &= ~TI122X_MFUNC1_MASK;
+ else
+ mfunc |= TI122X_MFUNC1_INTB;
+ config_writel(socket, TI122X_MFUNC, mfunc);
+ }
+ }
+
+ return 0;
+}
+
static int ti12xx_override(struct yenta_socket *socket)
{
u32 val, val_orig;
@@ -654,6 +818,9 @@ static int ti12xx_override(struct yenta_socket *socket)
else
ti12xx_irqroute_func1(socket);
+ /* install power hook */
+ socket->socket.power_hook = ti12xx_power_hook;
+
return ti_override(socket);
}
diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c
index 6404d97a12e..bee05362fd2 100644
--- a/drivers/pcmcia/yenta_socket.c
+++ b/drivers/pcmcia/yenta_socket.c
@@ -32,6 +32,14 @@ static int disable_clkrun;
module_param(disable_clkrun, bool, 0444);
MODULE_PARM_DESC(disable_clkrun, "If PC card doesn't function properly, please try this option");
+static int isa_probe = 1;
+module_param(isa_probe, bool, 0444);
+MODULE_PARM_DESC(isa_probe, "If set ISA interrupts are probed (default). Set to N to disable probing");
+
+static int pwr_irqs_off;
+module_param(pwr_irqs_off, bool, 0644);
+MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!");
+
#if 0
#define debug(x,args...) printk(KERN_DEBUG "%s: " x, __func__ , ##args)
#else
@@ -150,15 +158,16 @@ static int yenta_get_status(struct pcmcia_socket *sock, unsigned int *value)
val = (state & CB_3VCARD) ? SS_3VCARD : 0;
val |= (state & CB_XVCARD) ? SS_XVCARD : 0;
- val |= (state & (CB_CDETECT1 | CB_CDETECT2 | CB_5VCARD | CB_3VCARD
- | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING;
+ val |= (state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING;
+ val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? SS_PENDING : 0;
+
if (state & CB_CBCARD) {
val |= SS_CARDBUS;
val |= (state & CB_CARDSTS) ? SS_STSCHG : 0;
val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? 0 : SS_DETECT;
val |= (state & CB_PWRCYCLE) ? SS_POWERON | SS_READY : 0;
- } else {
+ } else if (state & CB_16BITCARD) {
u8 status = exca_readb(socket, I365_STATUS);
val |= ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0;
if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
@@ -405,11 +414,13 @@ static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *
}
-static unsigned int yenta_events(struct yenta_socket *socket)
+
+static irqreturn_t yenta_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
+ unsigned int events;
+ struct yenta_socket *socket = (struct yenta_socket *) dev_id;
u8 csc;
u32 cb_event;
- unsigned int events;
/* Clear interrupt status for the event */
cb_event = cb_readl(socket, CB_SOCKET_EVENT);
@@ -426,20 +437,13 @@ static unsigned int yenta_events(struct yenta_socket *socket)
events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
events |= (csc & I365_CSC_READY) ? SS_READY : 0;
}
- return events;
-}
-
-
-static irqreturn_t yenta_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- unsigned int events;
- struct yenta_socket *socket = (struct yenta_socket *) dev_id;
- events = yenta_events(socket);
- if (events) {
+ if (events)
pcmcia_parse_events(&socket->socket, events);
+
+ if (cb_event || csc)
return IRQ_HANDLED;
- }
+
return IRQ_NONE;
}
@@ -470,11 +474,22 @@ static void yenta_clear_maps(struct yenta_socket *socket)
}
}
+/* redoes voltage interrogation if required */
+static void yenta_interrogate(struct yenta_socket *socket)
+{
+ u32 state;
+
+ state = cb_readl(socket, CB_SOCKET_STATE);
+ if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ||
+ (state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) ||
+ ((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD)))
+ cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST);
+}
+
/* Called at resume and initialization events */
static int yenta_sock_init(struct pcmcia_socket *sock)
{
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
- u32 state;
u16 bridge;
bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~CB_BRIDGE_INTR;
@@ -486,10 +501,7 @@ static int yenta_sock_init(struct pcmcia_socket *sock)
exca_writeb(socket, I365_GENCTL, 0x00);
/* Redo card voltage interrogation */
- state = cb_readl(socket, CB_SOCKET_STATE);
- if (!(state & (CB_CDETECT1 | CB_CDETECT2 | CB_5VCARD |
- CB_3VCARD | CB_XVCARD | CB_YVCARD)))
- cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST);
+ yenta_interrogate(socket);
yenta_clear_maps(socket);
@@ -856,7 +868,10 @@ static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_i
socket->socket.features |= SS_CAP_PAGE_REGS | SS_CAP_PCCARD | SS_CAP_CARDBUS;
socket->socket.map_size = 0x1000;
socket->socket.pci_irq = socket->cb_irq;
- socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask);
+ if (isa_probe)
+ socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask);
+ else
+ socket->socket.irq_mask = 0;
socket->socket.cb_dev = socket->dev;
printk(KERN_INFO "Yenta: ISA IRQ mask 0x%04x, PCI irq %d\n",
@@ -996,6 +1011,7 @@ static int __devinit yenta_probe (struct pci_dev *dev, const struct pci_device_i
}
/* Figure out what the dang thing can do for the PCMCIA layer... */
+ yenta_interrogate(socket);
yenta_get_socket_capabilities(socket, isa_interrupts);
printk(KERN_INFO "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE));
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 9cc0015b717..a699c30b266 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -1126,11 +1126,11 @@ static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout)
struct adpt_i2o_post_wait_data *p1, *p2;
struct adpt_i2o_post_wait_data *wait_data =
kmalloc(sizeof(struct adpt_i2o_post_wait_data),GFP_KERNEL);
- adpt_wait_queue_t wait;
+ DECLARE_WAITQUEUE(wait, current);
- if(!wait_data){
+ if (!wait_data)
return -ENOMEM;
- }
+
/*
* The spin locking is needed to keep anyone from playing
* with the queue pointers and id while we do the same
@@ -1148,12 +1148,7 @@ static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout)
wait_data->wq = &adpt_wq_i2o_post;
wait_data->status = -ETIMEDOUT;
- // this code is taken from kernel/sched.c:interruptible_sleep_on_timeout
- wait.task = current;
- init_waitqueue_entry(&wait, current);
- spin_lock_irqsave(&adpt_wq_i2o_post.lock, flags);
- __add_wait_queue(&adpt_wq_i2o_post, &wait);
- spin_unlock(&adpt_wq_i2o_post.lock);
+ add_wait_queue(&adpt_wq_i2o_post, &wait);
msg[2] |= 0x80000000 | ((u32)wait_data->id);
timeout *= HZ;
@@ -1175,9 +1170,7 @@ static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout)
if(pHba->host)
spin_lock_irq(pHba->host->host_lock);
}
- spin_lock_irq(&adpt_wq_i2o_post.lock);
- __remove_wait_queue(&adpt_wq_i2o_post, &wait);
- spin_unlock_irqrestore(&adpt_wq_i2o_post.lock, flags);
+ remove_wait_queue(&adpt_wq_i2o_post, &wait);
if(status == -ETIMEDOUT){
printk(KERN_INFO"dpti%d: POST WAIT TIMEOUT\n",pHba->unit);
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 30e8beb7143..79f67fd863e 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -132,9 +132,9 @@ struct uart_8250_port {
struct uart_port port;
struct timer_list timer; /* "no irq" timer */
struct list_head list; /* ports on this IRQ */
- unsigned int capabilities; /* port capabilities */
+ unsigned short capabilities; /* port capabilities */
+ unsigned short bugs; /* port bugs */
unsigned int tx_loadsz; /* transmit fifo load size */
- unsigned short rev;
unsigned char acr;
unsigned char ier;
unsigned char lcr;
@@ -560,7 +560,14 @@ static void autoconfig_has_efr(struct uart_8250_port *up)
if (id1 == 0x16 && id2 == 0xC9 &&
(id3 == 0x50 || id3 == 0x52 || id3 == 0x54)) {
up->port.type = PORT_16C950;
- up->rev = rev | (id3 << 8);
+
+ /*
+ * Enable work around for the Oxford Semiconductor 952 rev B
+ * chip which causes it to seriously miscalculate baud rates
+ * when DLL is 0.
+ */
+ if (id3 == 0x52 && rev == 0x01)
+ up->bugs |= UART_BUG_QUOT;
return;
}
@@ -577,8 +584,6 @@ static void autoconfig_has_efr(struct uart_8250_port *up)
id2 = id1 >> 8;
if (id2 == 0x10 || id2 == 0x12 || id2 == 0x14) {
- if (id2 == 0x10)
- up->rev = id1 & 255;
up->port.type = PORT_16850;
return;
}
@@ -809,6 +814,7 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
// save_flags(flags); cli();
up->capabilities = 0;
+ up->bugs = 0;
if (!(up->port.flags & UPF_BUGGY_UART)) {
/*
@@ -1021,6 +1027,8 @@ static void serial8250_stop_tx(struct uart_port *port, unsigned int tty_stop)
}
}
+static void transmit_chars(struct uart_8250_port *up);
+
static void serial8250_start_tx(struct uart_port *port, unsigned int tty_start)
{
struct uart_8250_port *up = (struct uart_8250_port *)port;
@@ -1028,6 +1036,14 @@ static void serial8250_start_tx(struct uart_port *port, unsigned int tty_start)
if (!(up->ier & UART_IER_THRI)) {
up->ier |= UART_IER_THRI;
serial_out(up, UART_IER, up->ier);
+
+ if (up->bugs & UART_BUG_TXEN) {
+ unsigned char lsr, iir;
+ lsr = serial_in(up, UART_LSR);
+ iir = serial_in(up, UART_IIR);
+ if (lsr & UART_LSR_TEMT && iir & UART_IIR_NO_INT)
+ transmit_chars(up);
+ }
}
/*
* We only do this from uart_start
@@ -1433,6 +1449,7 @@ static int serial8250_startup(struct uart_port *port)
{
struct uart_8250_port *up = (struct uart_8250_port *)port;
unsigned long flags;
+ unsigned char lsr, iir;
int retval;
up->capabilities = uart_config[up->port.type].flags;
@@ -1536,6 +1553,26 @@ static int serial8250_startup(struct uart_port *port)
up->port.mctrl |= TIOCM_OUT2;
serial8250_set_mctrl(&up->port, up->port.mctrl);
+
+ /*
+ * Do a quick test to see if we receive an
+ * interrupt when we enable the TX irq.
+ */
+ serial_outp(up, UART_IER, UART_IER_THRI);
+ lsr = serial_in(up, UART_LSR);
+ iir = serial_in(up, UART_IIR);
+ serial_outp(up, UART_IER, 0);
+
+ if (lsr & UART_LSR_TEMT && iir & UART_IIR_NO_INT) {
+ if (!(up->bugs & UART_BUG_TXEN)) {
+ up->bugs |= UART_BUG_TXEN;
+ pr_debug("ttyS%d - enabling bad tx status workarounds\n",
+ port->line);
+ }
+ } else {
+ up->bugs &= ~UART_BUG_TXEN;
+ }
+
spin_unlock_irqrestore(&up->port.lock, flags);
/*
@@ -1677,12 +1714,9 @@ serial8250_set_termios(struct uart_port *port, struct termios *termios,
quot = serial8250_get_divisor(port, baud);
/*
- * Work around a bug in the Oxford Semiconductor 952 rev B
- * chip which causes it to seriously miscalculate baud rates
- * when DLL is 0.
+ * Oxford Semi 952 rev B workaround
*/
- if ((quot & 0xff) == 0 && up->port.type == PORT_16C950 &&
- up->rev == 0x5201)
+ if (up->bugs & UART_BUG_QUOT && (quot & 0xff) == 0)
quot ++;
if (up->capabilities & UART_CAP_FIFO && up->port.fifosize > 1) {
diff --git a/drivers/serial/8250.h b/drivers/serial/8250.h
index 4f3d62f222f..9225c82faeb 100644
--- a/drivers/serial/8250.h
+++ b/drivers/serial/8250.h
@@ -51,6 +51,9 @@ struct serial8250_config {
#define UART_CAP_AFE (1 << 11) /* MCR-based hw flow control */
#define UART_CAP_UUE (1 << 12) /* UART needs IER bit 6 set (Xscale) */
+#define UART_BUG_QUOT (1 << 0) /* UART has buggy quot LSB */
+#define UART_BUG_TXEN (1 << 1) /* UART has buggy TX IIR status */
+
#if defined(__i386__) && (defined(CONFIG_M386) || defined(CONFIG_M486))
#define _INLINE_ inline
#else
diff --git a/drivers/serial/sn_console.c b/drivers/serial/sn_console.c
index fee6418e84c..840815fde49 100644
--- a/drivers/serial/sn_console.c
+++ b/drivers/serial/sn_console.c
@@ -572,6 +572,7 @@ static void sn_transmit_chars(struct sn_cons_port *port, int raw)
if (uart_circ_empty(xmit) || uart_tx_stopped(&port->sc_port)) {
/* Nothing to do. */
+ ia64_sn_console_intr_disable(SAL_CONSOLE_INTR_XMIT);
return;
}
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index d041782e0c8..0da23732e80 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1794,7 +1794,7 @@ EXPORT_SYMBOL (usb_remove_hcd);
/*-------------------------------------------------------------------------*/
-#if defined(CONFIG_USB_MON) || defined(CONFIG_USB_MON_MODULE)
+#if defined(CONFIG_USB_MON)
struct usb_mon_operations *mon_ops;
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
index f67cf1e634f..325a51656c3 100644
--- a/drivers/usb/core/hcd.h
+++ b/drivers/usb/core/hcd.h
@@ -399,7 +399,7 @@ static inline void usbfs_cleanup(void) { }
/*-------------------------------------------------------------------------*/
-#if defined(CONFIG_USB_MON) || defined(CONFIG_USB_MON_MODULE)
+#if defined(CONFIG_USB_MON)
struct usb_mon_operations {
void (*urb_submit)(struct usb_bus *bus, struct urb *urb);
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index f9f9561c6ba..c3e3a95d380 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -453,17 +453,6 @@ static int usbfs_fill_super(struct super_block *sb, void *data, int silent)
return 0;
}
-static struct dentry * get_dentry(struct dentry *parent, const char *name)
-{
- struct qstr qstr;
-
- qstr.name = name;
- qstr.len = strlen(name);
- qstr.hash = full_name_hash(name,qstr.len);
- return lookup_hash(&qstr,parent);
-}
-
-
/*
* fs_create_by_name - create a file, given a name
* @name: name of file
@@ -496,7 +485,7 @@ static int fs_create_by_name (const char *name, mode_t mode,
*dentry = NULL;
down(&parent->d_inode->i_sem);
- *dentry = get_dentry (parent, name);
+ *dentry = lookup_one_len(name, parent, strlen(name));
if (!IS_ERR(dentry)) {
if ((mode & S_IFMT) == S_IFDIR)
error = usbfs_mkdir (parent->d_inode, *dentry, mode);
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c
index 2d8bd9dcc6e..740dec1f521 100644
--- a/drivers/usb/input/hid-core.c
+++ b/drivers/usb/input/hid-core.c
@@ -1762,7 +1762,7 @@ static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id)
intf->altsetting->desc.bInterfaceNumber);
if (!(hid = usb_hid_configure(intf)))
- return -EIO;
+ return -ENODEV;
hid_init_reports(hid);
hid_dump_device(hid);
@@ -1777,7 +1777,7 @@ static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id)
if (!hid->claimed) {
printk ("HID device not claimed by input or hiddev\n");
hid_disconnect(intf);
- return -EIO;
+ return -ENODEV;
}
printk(KERN_INFO);
diff --git a/drivers/usb/media/pwc/pwc-uncompress.c b/drivers/usb/media/pwc/pwc-uncompress.c
index bc3b1635eab..ef4204eab6c 100644
--- a/drivers/usb/media/pwc/pwc-uncompress.c
+++ b/drivers/usb/media/pwc/pwc-uncompress.c
@@ -118,9 +118,9 @@ int pwc_decompress(struct pwc_device *pdev)
return -ENXIO; /* No such device or address: missing decompressor */
}
+#if 0
switch (pdev->type)
{
-#if 0
case 675:
case 680:
case 690:
@@ -128,18 +128,17 @@ int pwc_decompress(struct pwc_device *pdev)
case 730:
case 740:
case 750:
- pwc_dec23_decompress(&pdev->image, &pdev->view, &pdev->offset,
- yuv, image,
- flags,
+ pwc_dec23_decompress(&pdev->image, &pdev->view,
+ &pdev->offset, yuv, image, flags,
pdev->decompress_data, pdev->vbandlength);
break;
case 645:
case 646:
/* TODO & FIXME */
-#endif
- return -ENXIO; /* No such device or address: missing decompressor */
+ return -ENXIO; /* Missing decompressor */
break;
}
+#endif
}
return 0;
}
diff --git a/drivers/usb/mon/Kconfig b/drivers/usb/mon/Kconfig
index 4e6152aa5f1..777642e26b9 100644
--- a/drivers/usb/mon/Kconfig
+++ b/drivers/usb/mon/Kconfig
@@ -2,13 +2,9 @@
# USB Monitor configuration
#
-# In normal life, it makes little sense to have usbmon as a module, and in fact
-# it is harmful, because there is no way to autoload the module.
-# The 'm' option is allowed for hackers who debug the usbmon itself,
-# and for those who have usbcore as a module.
config USB_MON
- tristate "USB Monitor"
- depends on USB
+ bool "USB Monitor"
+ depends on USB!=n
default y
help
If you say Y here, a component which captures the USB traffic
@@ -17,6 +13,5 @@ config USB_MON
Harding's USBMon.
This is somewhat experimental at this time, but it should be safe,
- as long as you aren't building this as a module and then removing it.
-
- If unsure, say Y. Do not say M.
+ as long as you aren't using modular USB and try to remove this
+ module.
diff --git a/drivers/usb/mon/Makefile b/drivers/usb/mon/Makefile
index 3cff8d444bb..f18d10ce91f 100644
--- a/drivers/usb/mon/Makefile
+++ b/drivers/usb/mon/Makefile
@@ -4,4 +4,4 @@
usbmon-objs := mon_main.o mon_stat.o mon_text.o
-obj-$(CONFIG_USB_MON) += usbmon.o
+obj-$(CONFIG_USB) += usbmon.o