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path: root/drivers/net/wimax/i2400m/usb-notif.c
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Diffstat (limited to 'drivers/net/wimax/i2400m/usb-notif.c')
-rw-r--r--drivers/net/wimax/i2400m/usb-notif.c38
1 files changed, 14 insertions, 24 deletions
diff --git a/drivers/net/wimax/i2400m/usb-notif.c b/drivers/net/wimax/i2400m/usb-notif.c
index 9702c22b249..fc1355d98bc 100644
--- a/drivers/net/wimax/i2400m/usb-notif.c
+++ b/drivers/net/wimax/i2400m/usb-notif.c
@@ -51,10 +51,12 @@
*
* i2400mu_usb_notification_cb() Called when a URB is ready
* i2400mu_notif_grok()
+ * i2400m_is_boot_barker()
* i2400m_dev_reset_handle()
* i2400mu_rx_kick()
*/
#include <linux/usb.h>
+#include <linux/slab.h>
#include "i2400m-usb.h"
@@ -87,32 +89,21 @@ 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->bus_id);
- 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;
@@ -187,7 +178,6 @@ error_submit:
out:
d_fnend(4, dev, "(urb %p status %d actual_length %d) = void\n",
urb, urb->status, urb->actual_length);
- return;
}
@@ -209,7 +199,6 @@ int i2400mu_notification_setup(struct i2400mu *i2400mu)
d_fnstart(4, dev, "(i2400m %p)\n", i2400mu);
buf = kmalloc(I2400MU_MAX_NOTIFICATION_LEN, GFP_KERNEL | GFP_DMA);
if (buf == NULL) {
- dev_err(dev, "notification: buffer allocation failed\n");
ret = -ENOMEM;
goto error_buf_alloc;
}
@@ -220,7 +209,8 @@ 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,