uwb: use dev_dbg() for debug messages

Instead of the home-grown d_fnstart(), d_fnend() and d_printf() macros,
use dev_dbg() or remove the message entirely.

Signed-off-by: David Vrabel <david.vrabel@csr.com>

5 files changed, 17 insertions, 128 deletions

diff --git a/drivers/uwb/i1480/dfu/dfu.c b/drivers/uwb/i1480/dfu/dfu.c
index 9097b3b30385..da7b1d08003c 100644
--- a/drivers/uwb/i1480/dfu/dfu.c
+++ b/drivers/uwb/i1480/dfu/dfu.c
@@ -34,10 +34,7 @@
 #include <linux/uwb.h>
 #include <linux/random.h>
 
-#define D_LOCAL 0
-#include <linux/uwb/debug.h>
-
-/**
+/*
  * i1480_rceb_check - Check RCEB for expected field values
  * @i1480: pointer to device for which RCEB is being checked
  * @rceb: RCEB being checked
@@ -83,7 +80,7 @@ int i1480_rceb_check(const struct i1480 *i1480, const struct uwb_rceb *rceb,
 EXPORT_SYMBOL_GPL(i1480_rceb_check);
 
 
-/**
+/*
  * Execute a Radio Control Command
  *
  * Command data has to be in i1480->cmd_buf.
@@ -101,7 +98,6 @@ ssize_t i1480_cmd(struct i1480 *i1480, const char *cmd_name, size_t cmd_size,
         u8 expected_type = reply->bEventType;
         u8 context;
 
-        d_fnstart(3, i1480->dev, "(%p, %s, %zu)\n", i1480, cmd_name, cmd_size);
         init_completion(&i1480->evt_complete);
         i1480->evt_result = -EINPROGRESS;
         do {
@@ -150,8 +146,6 @@ ssize_t i1480_cmd(struct i1480 *i1480, const char *cmd_name, size_t cmd_size,
         result = i1480_rceb_check(i1480, i1480->evt_buf, cmd_name, context,
                                   expected_type, expected_event);
 error:
-        d_fnend(3, i1480->dev, "(%p, %s, %zu) = %zd\n",
-                i1480, cmd_name, cmd_size, result);
         return result;
 }
 EXPORT_SYMBOL_GPL(i1480_cmd);
diff --git a/drivers/uwb/i1480/dfu/mac.c b/drivers/uwb/i1480/dfu/mac.c
index 2e4d8f07c165..694d0daf88ab 100644
--- a/drivers/uwb/i1480/dfu/mac.c
+++ b/drivers/uwb/i1480/dfu/mac.c
@@ -31,9 +31,6 @@
 #include <linux/uwb.h>
 #include "i1480-dfu.h"
 
-#define D_LOCAL 0
-#include <linux/uwb/debug.h>
-
 /*
  * Descriptor for a continuous segment of MAC fw data
  */
@@ -184,10 +181,6 @@ ssize_t i1480_fw_cmp(struct i1480 *i1480, struct fw_hdr *hdr)
                 }
                 if (memcmp(i1480->cmd_buf, bin + src_itr, result)) {
                         u8 *buf = i1480->cmd_buf;
-                        d_printf(2, i1480->dev,
-                                 "original data @ %p + %u, %zu bytes\n",
-                                 bin, src_itr, result);
-                        d_dump(4, i1480->dev, bin + src_itr, result);
                         for (cnt = 0; cnt < result; cnt++)
                                 if (bin[src_itr + cnt] != buf[cnt]) {
                                         dev_err(i1480->dev, "byte failed at "
@@ -224,7 +217,6 @@ int mac_fw_hdrs_push(struct i1480 *i1480, struct fw_hdr *hdr,
         struct fw_hdr *hdr_itr;
         int verif_retry_count;
 
-        d_fnstart(3, dev, "(%p, %p)\n", i1480, hdr);
         /* Now, header by header, push them to the hw */
         for (hdr_itr = hdr; hdr_itr != NULL; hdr_itr = hdr_itr->next) {
                 verif_retry_count = 0;
@@ -264,7 +256,6 @@ retry:
                         break;
                 }
         }
-        d_fnend(3, dev, "(%zd)\n", result);
         return result;
 }
 
@@ -337,11 +328,9 @@ int __mac_fw_upload(struct i1480 *i1480, const char *fw_name,
         const struct firmware *fw;
         struct fw_hdr *fw_hdrs;
 
-        d_fnstart(3, i1480->dev, "(%p, %s, %s)\n", i1480, fw_name, fw_tag);
         result = request_firmware(&fw, fw_name, i1480->dev);
         if (result < 0) /* Up to caller to complain on -ENOENT */
                 goto out;
-        d_printf(3, i1480->dev, "%s fw '%s': uploading\n", fw_tag, fw_name);
         result = fw_hdrs_load(i1480, &fw_hdrs, fw->data, fw->size);
         if (result < 0) {
                 dev_err(i1480->dev, "%s fw '%s': failed to parse firmware "
@@ -363,8 +352,6 @@ out_hdrs_release:
 out_release:
         release_firmware(fw);
 out:
-        d_fnend(3, i1480->dev, "(%p, %s, %s) = %d\n", i1480, fw_name, fw_tag,
-                result);
         return result;
 }
 
@@ -433,7 +420,6 @@ int i1480_fw_is_running_q(struct i1480 *i1480)
         int result;
         u32 *val = (u32 *) i1480->cmd_buf;
 
-        d_fnstart(3, i1480->dev, "(i1480 %p)\n", i1480);
         for (cnt = 0; cnt < 10; cnt++) {
                 msleep(100);
                 result = i1480->read(i1480, 0x80080000, 4);
@@ -447,7 +433,6 @@ int i1480_fw_is_running_q(struct i1480 *i1480)
         dev_err(i1480->dev, "Timed out waiting for fw to start\n");
         result = -ETIMEDOUT;
 out:
-        d_fnend(3, i1480->dev, "(i1480 %p) = %d\n", i1480, result);
         return result;
 
 }
@@ -467,7 +452,6 @@ int i1480_mac_fw_upload(struct i1480 *i1480)
         int result = 0, deprecated_name = 0;
         struct i1480_rceb *rcebe = (void *) i1480->evt_buf;
 
-        d_fnstart(3, i1480->dev, "(%p)\n", i1480);
         result = __mac_fw_upload(i1480, i1480->mac_fw_name, "MAC");
         if (result == -ENOENT) {
                 result = __mac_fw_upload(i1480, i1480->mac_fw_name_deprecate,
@@ -501,7 +485,6 @@ int i1480_mac_fw_upload(struct i1480 *i1480)
                 dev_err(i1480->dev, "MAC fw '%s': initialization event returns "
                         "wrong size (%zu bytes vs %zu needed)\n",
                         i1480->mac_fw_name, i1480->evt_result, sizeof(*rcebe));
-                dump_bytes(i1480->dev, rcebe, min(i1480->evt_result, (ssize_t)32));
                 goto error_size;
         }
         result = -EIO;
@@ -522,6 +505,5 @@ error_fw_not_running:
 error_init_timeout:
 error_size:
 error_setup:
-        d_fnend(3, i1480->dev, "(i1480 %p) = %d\n", i1480, result);
         return result;
 }
diff --git a/drivers/uwb/i1480/dfu/usb.c b/drivers/uwb/i1480/dfu/usb.c
index b7ea525fc06a..686795e97195 100644
--- a/drivers/uwb/i1480/dfu/usb.c
+++ b/drivers/uwb/i1480/dfu/usb.c
@@ -43,10 +43,6 @@
 #include <linux/usb/wusb-wa.h>
 #include "i1480-dfu.h"
 
-#define D_LOCAL 0
-#include <linux/uwb/debug.h>
-
-
 struct i1480_usb {
         struct i1480 i1480;
         struct usb_device *usb_dev;
@@ -117,8 +113,6 @@ int i1480_usb_write(struct i1480 *i1480, u32 memory_address,
         struct i1480_usb *i1480_usb = container_of(i1480, struct i1480_usb, i1480);
         size_t buffer_size, itr = 0;
 
-        d_fnstart(3, i1480->dev, "(%p, 0x%08x, %p, %zu)\n",
-                  i1480, memory_address, buffer, size);
         BUG_ON(size & 0x3); /* Needs to be a multiple of 4 */
         while (size > 0) {
                 buffer_size = size < i1480->buf_size ? size : i1480->buf_size;
@@ -131,16 +125,10 @@ int i1480_usb_write(struct i1480 *i1480, u32 memory_address,
                         i1480->cmd_buf, buffer_size, 100 /* FIXME: arbitrary */);
                 if (result < 0)
                         break;
-                d_printf(3, i1480->dev,
-                         "wrote @ 0x%08x %u bytes (of %zu bytes requested)\n",
-                         memory_address, result, buffer_size);
-                d_dump(4, i1480->dev, i1480->cmd_buf, result);
                 itr += result;
                 memory_address += result;
                 size -= result;
         }
-        d_fnend(3, i1480->dev, "(%p, 0x%08x, %p, %zu) = %d\n",
-                i1480, memory_address, buffer, size, result);
         return result;
 }
 
@@ -165,8 +153,6 @@ int i1480_usb_read(struct i1480 *i1480, u32 addr, size_t size)
         size_t itr, read_size = i1480->buf_size;
         struct i1480_usb *i1480_usb = container_of(i1480, struct i1480_usb, i1480);
 
-        d_fnstart(3, i1480->dev, "(%p, 0x%08x, %zu)\n",
-                  i1480, addr, size);
         BUG_ON(size > i1480->buf_size);
         BUG_ON(size & 0x3); /* Needs to be a multiple of 4 */
         BUG_ON(read_size > 512);
@@ -200,10 +186,6 @@ int i1480_usb_read(struct i1480 *i1480, u32 addr, size_t size)
         }
         result = bytes;
 out:
-        d_fnend(3, i1480->dev, "(%p, 0x%08x, %zu) = %zd\n",
-                i1480, addr, size, result);
-        if (result > 0)
-                d_dump(4, i1480->dev, i1480->cmd_buf, result);
         return result;
 }
 
@@ -259,7 +241,6 @@ int i1480_usb_wait_init_done(struct i1480 *i1480)
         struct i1480_usb *i1480_usb = container_of(i1480, struct i1480_usb, i1480);
         struct usb_endpoint_descriptor *epd;
 
-        d_fnstart(3, dev, "(%p)\n", i1480);
         init_completion(&i1480->evt_complete);
         i1480->evt_result = -EINPROGRESS;
         epd = &i1480_usb->usb_iface->cur_altsetting->endpoint[0].desc;
@@ -281,14 +262,12 @@ int i1480_usb_wait_init_done(struct i1480 *i1480)
                 goto error_wait;
         }
         usb_kill_urb(i1480_usb->neep_urb);
-        d_fnend(3, dev, "(%p) = 0\n", i1480);
         return 0;
 
 error_wait:
         usb_kill_urb(i1480_usb->neep_urb);
 error_submit:
         i1480->evt_result = result;
-        d_fnend(3, dev, "(%p) = %d\n", i1480, result);
         return result;
 }
 
@@ -319,7 +298,6 @@ int i1480_usb_cmd(struct i1480 *i1480, const char *cmd_name, size_t cmd_size)
         struct uwb_rccb *cmd = i1480->cmd_buf;
         u8 iface_no;
 
-        d_fnstart(3, dev, "(%p, %s, %zu)\n", i1480, cmd_name, cmd_size);
         /* Post a read on the notification & event endpoint */
         iface_no = i1480_usb->usb_iface->cur_altsetting->desc.bInterfaceNumber;
         epd = &i1480_usb->usb_iface->cur_altsetting->endpoint[0].desc;
@@ -347,15 +325,11 @@ int i1480_usb_cmd(struct i1480 *i1480, const char *cmd_name, size_t cmd_size)
                         cmd_name, result);
                 goto error_submit_ep0;
         }
-        d_fnend(3, dev, "(%p, %s, %zu) = %d\n",
-                i1480, cmd_name, cmd_size, result);
         return result;
 
 error_submit_ep0:
         usb_kill_urb(i1480_usb->neep_urb);
 error_submit_ep1:
-        d_fnend(3, dev, "(%p, %s, %zu) = %d\n",
-                i1480, cmd_name, cmd_size, result);
         return result;
 }
 
diff --git a/drivers/uwb/i1480/i1480u-wlp/rx.c b/drivers/uwb/i1480/i1480u-wlp/rx.c
index 9fc035354a76..34f4cf9a7d34 100644
--- a/drivers/uwb/i1480/i1480u-wlp/rx.c
+++ b/drivers/uwb/i1480/i1480u-wlp/rx.c
@@ -68,11 +68,7 @@
 #include <linux/etherdevice.h>
 #include "i1480u-wlp.h"
 
-#define D_LOCAL 0
-#include <linux/uwb/debug.h>
-
-
-/**
+/*
  * Setup the RX context
  *
  * Each URB is provided with a transfer_buffer that is the data field
@@ -129,7 +125,7 @@ error:
 }
 
 
-/** Release resources associated to the rx context */
+/* Release resources associated to the rx context */
 void i1480u_rx_release(struct i1480u *i1480u)
 {
         int cnt;
@@ -155,7 +151,7 @@ void i1480u_rx_unlink_urbs(struct i1480u *i1480u)
         }
 }
 
-/** Fix an out-of-sequence packet */
+/* Fix an out-of-sequence packet */
 #define i1480u_fix(i1480u, msg...)                      \
 do {                                                    \
         if (printk_ratelimit())                         \
@@ -166,7 +162,7 @@ do {							\
 } while (0)
 
 
-/** Drop an out-of-sequence packet */
+/* Drop an out-of-sequence packet */
 #define i1480u_drop(i1480u, msg...)                     \
 do {                                                    \
         if (printk_ratelimit())                         \
@@ -177,7 +173,7 @@ do {							\
 
 
 
-/** Finalizes setting up the SKB and delivers it
+/* Finalizes setting up the SKB and delivers it
  *
  * We first pass the incoming frame to WLP substack for verification. It
  * may also be a WLP association frame in which case WLP will take over the
@@ -192,18 +188,11 @@ void i1480u_skb_deliver(struct i1480u *i1480u)
         struct net_device *net_dev = i1480u->net_dev;
         struct device *dev = &i1480u->usb_iface->dev;
 
-        d_printf(6, dev, "RX delivered pre skb(%p), %u bytes\n",
-                 i1480u->rx_skb, i1480u->rx_skb->len);
-        d_dump(7, dev, i1480u->rx_skb->data, i1480u->rx_skb->len);
         should_parse = wlp_receive_frame(dev, &i1480u->wlp, i1480u->rx_skb,
                                          &i1480u->rx_srcaddr);
         if (!should_parse)
                 goto out;
         i1480u->rx_skb->protocol = eth_type_trans(i1480u->rx_skb, net_dev);
-        d_printf(5, dev, "RX delivered skb(%p), %u bytes\n",
-                 i1480u->rx_skb, i1480u->rx_skb->len);
-        d_dump(7, dev, i1480u->rx_skb->data,
-               i1480u->rx_skb->len > 72 ? 72 : i1480u->rx_skb->len);
         i1480u->stats.rx_packets++;
         i1480u->stats.rx_bytes += i1480u->rx_untd_pkt_size;
         net_dev->last_rx = jiffies;
@@ -216,7 +205,7 @@ out:
 }
 
 
-/**
+/*
  * Process a buffer of data received from the USB RX endpoint
  *
  * First fragment arrives with next or last fragment. All other fragments
@@ -404,7 +393,7 @@ out:
 }
 
 
-/**
+/*
  * Called when an RX URB has finished receiving or has found some kind
  * of error condition.
  *
diff --git a/drivers/uwb/i1480/i1480u-wlp/tx.c b/drivers/uwb/i1480/i1480u-wlp/tx.c
index 3426bfb68240..39032cc3503e 100644
--- a/drivers/uwb/i1480/i1480u-wlp/tx.c
+++ b/drivers/uwb/i1480/i1480u-wlp/tx.c
@@ -55,8 +55,6 @@
  */
 
 #include "i1480u-wlp.h"
-#define D_LOCAL 5
-#include <linux/uwb/debug.h>
 
 enum {
         /* This is only for Next and Last TX packets */
@@ -64,7 +62,7 @@ enum {
                 - sizeof(struct untd_hdr_rst),
 };
 
-/** Free resources allocated to a i1480u tx context. */
+/* Free resources allocated to a i1480u tx context. */
 static
 void i1480u_tx_free(struct i1480u_tx *wtx)
 {
@@ -99,7 +97,7 @@ void i1480u_tx_unlink_urbs(struct i1480u *i1480u)
 }
 
 
-/**
+/*
  * Callback for a completed tx USB URB.
  *
  * TODO:
@@ -149,8 +147,6 @@ void i1480u_tx_cb(struct urb *urb)
             <= i1480u->tx_inflight.threshold
             && netif_queue_stopped(net_dev)
             && i1480u->tx_inflight.threshold != 0) {
-                if (d_test(2) && printk_ratelimit())
-                        d_printf(2, dev, "Restart queue. \n");
                 netif_start_queue(net_dev);
                 atomic_inc(&i1480u->tx_inflight.restart_count);
         }
@@ -158,7 +154,7 @@ void i1480u_tx_cb(struct urb *urb)
 }
 
 
-/**
+/*
  * Given a buffer that doesn't fit in a single fragment, create an
  * scatter/gather structure for delivery to the USB pipe.
  *
@@ -253,15 +249,11 @@ int i1480u_tx_create_n(struct i1480u_tx *wtx, struct sk_buff *skb,
         /* Now do each remaining fragment */
         result = -EINVAL;
         while (pl_size_left > 0) {
-                d_printf(5, NULL, "ITR HDR: pl_size_left %zu buf_itr %zu\n",
-                         pl_size_left, buf_itr - wtx->buf);
                 if (buf_itr + sizeof(*untd_hdr_rst) - wtx->buf
                     > wtx->buf_size) {
                         printk(KERN_ERR "BUG: no space for header\n");
                         goto error_bug;
                 }
-                d_printf(5, NULL, "ITR HDR 2: pl_size_left %zu buf_itr %zu\n",
-                         pl_size_left, buf_itr - wtx->buf);
                 untd_hdr_rst = buf_itr;
                 buf_itr += sizeof(*untd_hdr_rst);
                 if (pl_size_left > i1480u_MAX_PL_SIZE) {
@@ -271,9 +263,6 @@ int i1480u_tx_create_n(struct i1480u_tx *wtx, struct sk_buff *skb,
                         frg_pl_size = pl_size_left;
                         untd_hdr_set_type(&untd_hdr_rst->hdr, i1480u_PKT_FRAG_LST);
                 }
-                d_printf(5, NULL,
-                         "ITR PL: pl_size_left %zu buf_itr %zu frg_pl_size %zu\n",
-                         pl_size_left, buf_itr - wtx->buf, frg_pl_size);
                 untd_hdr_set_rx_tx(&untd_hdr_rst->hdr, 0);
                 untd_hdr_rst->hdr.len = cpu_to_le16(frg_pl_size);
                 untd_hdr_rst->padding = 0;
@@ -286,9 +275,6 @@ int i1480u_tx_create_n(struct i1480u_tx *wtx, struct sk_buff *skb,
                 buf_itr += frg_pl_size;
                 pl_itr += frg_pl_size;
                 pl_size_left -= frg_pl_size;
-                d_printf(5, NULL,
-                         "ITR PL 2: pl_size_left %zu buf_itr %zu frg_pl_size %zu\n",
-                         pl_size_left, buf_itr - wtx->buf, frg_pl_size);
         }
         dev_kfree_skb_irq(skb);
         return 0;
@@ -308,7 +294,7 @@ error_buf_alloc:
 }
 
 
-/**
+/*
  * Given a buffer that fits in a single fragment, fill out a @wtx
  * struct for transmitting it down the USB pipe.
  *
@@ -346,7 +332,7 @@ int i1480u_tx_create_1(struct i1480u_tx *wtx, struct sk_buff *skb,
 }
 
 
-/**
+/*
  * Given a skb to transmit, massage it to become palatable for the TX pipe
  *
  * This will break the buffer in chunks smaller than
@@ -425,7 +411,7 @@ error_wtx_alloc:
         return NULL;
 }
 
-/**
+/*
  * Actual fragmentation and transmission of frame
  *
  * @wlp:  WLP substack data structure
@@ -447,20 +433,12 @@ int i1480u_xmit_frame(struct wlp *wlp, struct sk_buff *skb,
         struct i1480u_tx *wtx;
         struct wlp_tx_hdr *wlp_tx_hdr;
         static unsigned char dev_bcast[2] = { 0xff, 0xff };
-#if 0
-        int lockup = 50;
-#endif
 
-        d_fnstart(6, dev, "(skb %p (%u), net_dev %p)\n", skb, skb->len,
-                  net_dev);
         BUG_ON(i1480u->wlp.rc == NULL);
         if ((net_dev->flags & IFF_UP) == 0)
                 goto out;
         result = -EBUSY;
         if (atomic_read(&i1480u->tx_inflight.count) >= i1480u->tx_inflight.max) {
-                if (d_test(2) && printk_ratelimit())
-                        d_printf(2, dev, "Max frames in flight "
-                                 "stopping queue.\n");
                 netif_stop_queue(net_dev);
                 goto error_max_inflight;
         }
@@ -489,21 +467,6 @@ int i1480u_xmit_frame(struct wlp *wlp, struct sk_buff *skb,
                 wlp_tx_hdr_set_delivery_id_type(wlp_tx_hdr, i1480u->options.pca_base_priority);
         }
 
-#if 0
-        dev_info(dev, "TX delivering skb -> USB, %zu bytes\n", skb->len);
-        dump_bytes(dev, skb->data, skb->len > 72 ? 72 : skb->len);
-#endif
-#if 0
-        /* simulates a device lockup after every lockup# packets */
-        if (lockup && ((i1480u->stats.tx_packets + 1) % lockup) == 0) {
-                /* Simulate a dropped transmit interrupt */
-                net_dev->trans_start = jiffies;
-                netif_stop_queue(net_dev);
-                dev_err(dev, "Simulate lockup at %ld\n", jiffies);
-                return result;
-        }
-#endif
-
         result = usb_submit_urb(wtx->urb, GFP_ATOMIC);          /* Go baby */
         if (result < 0) {
                 dev_err(dev, "TX: cannot submit URB: %d\n", result);
@@ -513,8 +476,6 @@ int i1480u_xmit_frame(struct wlp *wlp, struct sk_buff *skb,
         }
         atomic_inc(&i1480u->tx_inflight.count);
         net_dev->trans_start = jiffies;
-        d_fnend(6, dev, "(skb %p (%u), net_dev %p) = %d\n", skb, skb->len,
-                net_dev, result);
         return result;
 
 error_tx_urb_submit:
@@ -522,13 +483,11 @@ error_tx_urb_submit:
 error_wtx_alloc:
 error_max_inflight:
 out:
-        d_fnend(6, dev, "(skb %p (%u), net_dev %p) = %d\n", skb, skb->len,
-                net_dev, result);
         return result;
 }
 
 
-/**
+/*
  * Transmit an skb  Called when an skbuf has to be transmitted
  *
  * The skb is first passed to WLP substack to ensure this is a valid
@@ -551,9 +510,6 @@ int i1480u_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev)
         struct device *dev = &i1480u->usb_iface->dev;
         struct uwb_dev_addr dst;
 
-        d_fnstart(6, dev, "(skb %p (%u), net_dev %p)\n", skb, skb->len,
-                  net_dev);
-        BUG_ON(i1480u->wlp.rc == NULL);
         if ((net_dev->flags & IFF_UP) == 0)
                 goto error;
         result = wlp_prepare_tx_frame(dev, &i1480u->wlp, skb, &dst);
@@ -562,31 +518,25 @@ int i1480u_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev)
                         "Dropping packet.\n", result);
                 goto error;
         } else if (result == 1) {
-                d_printf(6, dev, "WLP will transmit frame. \n");
                 /* trans_start time will be set when WLP actually transmits
                  * the frame */
                 goto out;
         }
-        d_printf(6, dev, "Transmitting frame. \n");
         result = i1480u_xmit_frame(&i1480u->wlp, skb, &dst);
         if (result < 0) {
                 dev_err(dev, "Frame TX failed (%d).\n", result);
                 goto error;
         }
-        d_fnend(6, dev, "(skb %p (%u), net_dev %p) = %d\n", skb, skb->len,
-                net_dev, result);
         return NETDEV_TX_OK;
 error:
         dev_kfree_skb_any(skb);
         i1480u->stats.tx_dropped++;
 out:
-        d_fnend(6, dev, "(skb %p (%u), net_dev %p) = %d\n", skb, skb->len,
-                net_dev, result);
         return NETDEV_TX_OK;
 }
 
 
-/**
+/*
  * Called when a pkt transmission doesn't complete in a reasonable period
  * Device reset may sleep - do it outside of interrupt context (delayed)
  */