diff options
Diffstat (limited to 'drivers/net/wimax/i2400m/usb-notif.c')
| -rw-r--r-- | drivers/net/wimax/i2400m/usb-notif.c | 35 |
1 files changed, 13 insertions, 22 deletions
diff --git a/drivers/net/wimax/i2400m/usb-notif.c b/drivers/net/wimax/i2400m/usb-notif.c index 6add27c3f35c..f88d1c6e35cb 100644 --- a/drivers/net/wimax/i2400m/usb-notif.c +++ b/drivers/net/wimax/i2400m/usb-notif.c @@ -51,6 +51,7 @@ * * i2400mu_usb_notification_cb() Called when a URB is ready * i2400mu_notif_grok() + * i2400m_is_boot_barker() * i2400m_dev_reset_handle() * i2400mu_rx_kick() */ @@ -87,32 +88,21 @@ int i2400mu_notification_grok(struct i2400mu *i2400mu, const void *buf, d_fnstart(4, dev, "(i2400m %p buf %p buf_len %zu)\n", i2400mu, buf, buf_len); ret = -EIO; - if (buf_len < sizeof(i2400m_NBOOT_BARKER)) + if (buf_len < sizeof(i2400m_ZERO_BARKER)) /* Not a bug, just ignore */ goto error_bad_size; - if (!memcmp(i2400m_NBOOT_BARKER, buf, sizeof(i2400m_NBOOT_BARKER)) - || !memcmp(i2400m_SBOOT_BARKER, buf, sizeof(i2400m_SBOOT_BARKER))) - ret = i2400m_dev_reset_handle(i2400m); - else if (!memcmp(i2400m_ZERO_BARKER, buf, sizeof(i2400m_ZERO_BARKER))) { + ret = 0; + if (!memcmp(i2400m_ZERO_BARKER, buf, sizeof(i2400m_ZERO_BARKER))) { i2400mu_rx_kick(i2400mu); - ret = 0; - } else { /* Unknown or unexpected data in the notif message */ - char prefix[64]; - ret = -EIO; - dev_err(dev, "HW BUG? Unknown/unexpected data in notification " - "message (%zu bytes)\n", buf_len); - snprintf(prefix, sizeof(prefix), "%s %s: ", - dev_driver_string(dev), dev_name(dev)); - if (buf_len > 64) { - print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, - 8, 4, buf, 64, 0); - printk(KERN_ERR "%s... (only first 64 bytes " - "dumped)\n", prefix); - } else - print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, - 8, 4, buf, buf_len, 0); + goto out; } + ret = i2400m_is_boot_barker(i2400m, buf, buf_len); + if (unlikely(ret >= 0)) + ret = i2400m_dev_reset_handle(i2400m, "device rebooted"); + else /* Unknown or unexpected data in the notif message */ + i2400m_unknown_barker(i2400m, buf, buf_len); error_bad_size: +out: d_fnend(4, dev, "(i2400m %p buf %p buf_len %zu) = %d\n", i2400mu, buf, buf_len, ret); return ret; @@ -220,7 +210,8 @@ int i2400mu_notification_setup(struct i2400mu *i2400mu) dev_err(dev, "notification: cannot allocate URB\n"); goto error_alloc_urb; } - epd = usb_get_epd(i2400mu->usb_iface, I2400MU_EP_NOTIFICATION); + epd = usb_get_epd(i2400mu->usb_iface, + i2400mu->endpoint_cfg.notification); usb_pipe = usb_rcvintpipe(i2400mu->usb_dev, epd->bEndpointAddress); usb_fill_int_urb(i2400mu->notif_urb, i2400mu->usb_dev, usb_pipe, buf, I2400MU_MAX_NOTIFICATION_LEN, |