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path: root/drivers/block/ub.c
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Diffstat (limited to 'drivers/block/ub.c')
-rw-r--r--drivers/block/ub.c60
1 files changed, 12 insertions, 48 deletions
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index cfb824d90c86..60e9a9457c6b 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -10,17 +10,13 @@
* TODO (sorted by decreasing priority)
* -- set readonly flag for CDs, set removable flag for CF readers
* -- do inquiry and verify we got a disk and not a tape (for LUN mismatch)
- * -- special case some senses, e.g. 3a/0 -> no media present, reduce retries
* -- verify the 13 conditions and do bulk resets
- * -- kill last_pipe and simply do two-state clearing on both pipes
* -- highmem
* -- move top_sense and work_bcs into separate allocations (if they survive)
* for cache purists and esoteric architectures.
* -- Allocate structure for LUN 0 before the first ub_sync_tur, avoid NULL. ?
* -- prune comments, they are too volumnous
- * -- Exterminate P3 printks
* -- Resove XXX's
- * -- Redo "benh's retries", perhaps have spin-up code to handle them. V:D=?
* -- CLEAR, CLR2STS, CLRRS seem to be ripe for refactoring.
*/
#include <linux/kernel.h>
@@ -180,7 +176,6 @@ struct ub_dev;
#define UB_DIR_ILLEGAL2 2
#define UB_DIR_WRITE 3
-/* P3 */
#define UB_DIR_CHAR(c) (((c)==UB_DIR_WRITE)? 'w': \
(((c)==UB_DIR_READ)? 'r': 'n'))
@@ -669,8 +664,9 @@ static int ub_request_fn_1(struct ub_lun *lun, struct request *rq)
*/
n_elem = blk_rq_map_sg(lun->disk->queue, rq, &urq->sgv[0]);
if (n_elem < 0) {
+ /* Impossible, because blk_rq_map_sg should not hit ENOMEM. */
printk(KERN_INFO "%s: failed request map (%d)\n",
- lun->name, n_elem); /* P3 */
+ lun->name, n_elem);
goto drop;
}
if (n_elem > UB_MAX_REQ_SG) { /* Paranoia */
@@ -824,7 +820,9 @@ static int ub_rw_cmd_retry(struct ub_dev *sc, struct ub_lun *lun,
if (urq->current_try >= 3)
return -EIO;
urq->current_try++;
- /* P3 */ printk("%s: dir %c len/act %d/%d "
+
+ /* Remove this if anyone complains of flooding. */
+ printk(KERN_DEBUG "%s: dir %c len/act %d/%d "
"[sense %x %02x %02x] retry %d\n",
sc->name, UB_DIR_CHAR(cmd->dir), cmd->len, cmd->act_len,
cmd->key, cmd->asc, cmd->ascq, urq->current_try);
@@ -1241,8 +1239,6 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
* to check. But it's not all right if the device
* counts disagree with our counts.
*/
- /* P3 */ printk("%s: resid %d len %d act %d\n",
- sc->name, len, cmd->len, cmd->act_len);
goto Bad_End;
}
@@ -1253,7 +1249,6 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
ub_state_sense(sc, cmd);
return;
case US_BULK_STAT_PHASE:
- /* P3 */ printk("%s: status PHASE\n", sc->name);
goto Bad_End;
default:
printk(KERN_INFO "%s: unknown CSW status 0x%x\n",
@@ -1568,16 +1563,14 @@ static void ub_reset_task(void *arg)
}
if (atomic_read(&sc->poison)) {
- printk(KERN_NOTICE "%s: Not resetting disconnected device\n",
- sc->name); /* P3 This floods. Remove soon. XXX */
+ ;
} else if ((sc->reset & 1) == 0) {
ub_sync_reset(sc);
msleep(700); /* usb-storage sleeps 6s (!) */
ub_probe_clear_stall(sc, sc->recv_bulk_pipe);
ub_probe_clear_stall(sc, sc->send_bulk_pipe);
} else if (sc->dev->actconfig->desc.bNumInterfaces != 1) {
- printk(KERN_NOTICE "%s: Not resetting multi-interface device\n",
- sc->name); /* P3 This floods. Remove soon. XXX */
+ ;
} else {
if ((lkr = usb_lock_device_for_reset(sc->dev, sc->intf)) < 0) {
printk(KERN_NOTICE
@@ -1819,10 +1812,8 @@ static int ub_sync_tur(struct ub_dev *sc, struct ub_lun *lun)
rc = ub_submit_scsi(sc, cmd);
spin_unlock_irqrestore(sc->lock, flags);
- if (rc != 0) {
- printk("ub: testing ready: submit error (%d)\n", rc); /* P3 */
+ if (rc != 0)
goto err_submit;
- }
wait_for_completion(&compl);
@@ -1880,20 +1871,16 @@ static int ub_sync_read_cap(struct ub_dev *sc, struct ub_lun *lun,
rc = ub_submit_scsi(sc, cmd);
spin_unlock_irqrestore(sc->lock, flags);
- if (rc != 0) {
- printk("ub: reading capacity: submit error (%d)\n", rc); /* P3 */
+ if (rc != 0)
goto err_submit;
- }
wait_for_completion(&compl);
if (cmd->error != 0) {
- printk("ub: reading capacity: error %d\n", cmd->error); /* P3 */
rc = -EIO;
goto err_read;
}
if (cmd->act_len != 8) {
- printk("ub: reading capacity: size %d\n", cmd->act_len); /* P3 */
rc = -EIO;
goto err_read;
}
@@ -1907,7 +1894,6 @@ static int ub_sync_read_cap(struct ub_dev *sc, struct ub_lun *lun,
case 2048: shift = 2; break;
case 4096: shift = 3; break;
default:
- printk("ub: Bad sector size %u\n", bsize); /* P3 */
rc = -EDOM;
goto err_inv_bsize;
}
@@ -2019,17 +2005,8 @@ static int ub_sync_getmaxlun(struct ub_dev *sc)
sc->work_urb.error_count = 0;
sc->work_urb.status = 0;
- if ((rc = usb_submit_urb(&sc->work_urb, GFP_KERNEL)) != 0) {
- if (rc == -EPIPE) {
- printk("%s: Stall submitting GetMaxLUN, using 1 LUN\n",
- sc->name); /* P3 */
- } else {
- printk(KERN_NOTICE
- "%s: Unable to submit GetMaxLUN (%d)\n",
- sc->name, rc);
- }
+ if ((rc = usb_submit_urb(&sc->work_urb, GFP_KERNEL)) != 0)
goto err_submit;
- }
init_timer(&timer);
timer.function = ub_probe_timeout;
@@ -2042,21 +2019,10 @@ static int ub_sync_getmaxlun(struct ub_dev *sc)
del_timer_sync(&timer);
usb_kill_urb(&sc->work_urb);
- if ((rc = sc->work_urb.status) < 0) {
- if (rc == -EPIPE) {
- printk("%s: Stall at GetMaxLUN, using 1 LUN\n",
- sc->name); /* P3 */
- } else {
- printk(KERN_NOTICE
- "%s: Error at GetMaxLUN (%d)\n",
- sc->name, rc);
- }
+ if ((rc = sc->work_urb.status) < 0)
goto err_io;
- }
if (sc->work_urb.actual_length != 1) {
- printk("%s: GetMaxLUN returned %d bytes\n", sc->name,
- sc->work_urb.actual_length); /* P3 */
nluns = 0;
} else {
if ((nluns = *p) == 55) {
@@ -2067,8 +2033,6 @@ static int ub_sync_getmaxlun(struct ub_dev *sc)
if (nluns > UB_MAX_LUNS)
nluns = UB_MAX_LUNS;
}
- printk("%s: GetMaxLUN returned %d, using %d LUNs\n", sc->name,
- *p, nluns); /* P3 */
}
kfree(p);
@@ -2266,7 +2230,7 @@ static int ub_probe(struct usb_interface *intf,
* has to succeed, so we clear checks with an additional one here.
* In any case it's not our business how revaliadation is implemented.
*/
- for (i = 0; i < 3; i++) { /* Retries for benh's key */
+ for (i = 0; i < 3; i++) { /* Retries for the schwag key from KS'04 */
if ((rc = ub_sync_tur(sc, NULL)) <= 0) break;
if (rc != 0x6) break;
msleep(10);
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-19 18:38:18 +0000