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authorOliver Neukum <oneukum@suse.com>2016-09-13 16:44:37 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-09-13 17:24:24 +0200
commitefbe27b3cf604effa77ab7e23a359e64fee06998 (patch)
tree9c0b06a7c37b86eb4987138bb503eb077eed5ea4 /drivers/usb/class
parent46e75075baec1f8c239faa74f2549400e1caaa2f (diff)
cdc-acm: cleaning up debug in data submission path
Further cleanup making the debug messages more precise, useful and removing mere trace points. Signed-off-by: Oliver Neukum <oneukum@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/class')
-rw-r--r--drivers/usb/class/cdc-acm.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index faab151d9fdc..15ffe389b86f 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -415,8 +415,9 @@ static void acm_read_bulk_callback(struct urb *urb)
unsigned long flags;
int status = urb->status;
- dev_vdbg(&acm->data->dev, "%s - urb %d, len %d\n", __func__,
- rb->index, urb->actual_length);
+ dev_vdbg(&acm->data->dev, "got urb %d, len %d, status %d\n",
+ rb->index, urb->actual_length,
+ status);
if (!acm->dev) {
set_bit(rb->index, &acm->read_urbs_free);
@@ -426,8 +427,6 @@ static void acm_read_bulk_callback(struct urb *urb)
if (status) {
set_bit(rb->index, &acm->read_urbs_free);
- dev_dbg(&acm->data->dev, "%s - non-zero urb status: %d\n",
- __func__, status);
if ((status != -ENOENT) || (urb->actual_length == 0))
return;
}
@@ -462,8 +461,7 @@ static void acm_write_bulk(struct urb *urb)
int status = urb->status;
if (status || (urb->actual_length != urb->transfer_buffer_length))
- dev_vdbg(&acm->data->dev, "%s - len %d/%d, status %d\n",
- __func__,
+ dev_vdbg(&acm->data->dev, "wrote len %d/%d, status %d\n",
urb->actual_length,
urb->transfer_buffer_length,
status);
@@ -478,8 +476,6 @@ static void acm_softint(struct work_struct *work)
{
struct acm *acm = container_of(work, struct acm, work);
- dev_vdbg(&acm->data->dev, "%s\n", __func__);
-
tty_port_tty_wakeup(&acm->port);
}
@@ -674,7 +670,7 @@ static int acm_tty_write(struct tty_struct *tty,
if (!count)
return 0;
- dev_vdbg(&acm->data->dev, "%s - count %d\n", __func__, count);
+ dev_vdbg(&acm->data->dev, "%d bytes from tty layer\n", count);
spin_lock_irqsave(&acm->write_lock, flags);
wbn = acm_wb_alloc(acm);
@@ -691,7 +687,7 @@ static int acm_tty_write(struct tty_struct *tty,
}
count = (count > acm->writesize) ? acm->writesize : count;
- dev_vdbg(&acm->data->dev, "%s - write %d\n", __func__, count);
+ dev_vdbg(&acm->data->dev, "writing %d bytes\n", count);
memcpy(wb->buf, buf, count);
wb->len = count;