WARNING: line length of 83 exceeds 80 columns
#562: FILE: drivers/net/usb/cx82310_eth.c:137:
+#define partial_len	private[0]		/* length of partial packet data */

WARNING: line length of 85 exceeds 80 columns
#563: FILE: drivers/net/usb/cx82310_eth.c:138:
+#define partial_rem	private[1]		/* remaining (missing) data length */

CHECK: No space is necessary after a cast
#577: FILE: drivers/net/usb/dm9601.c:279:
+	u8 *hashes = (u8 *) & dev->private;

ERROR: space prohibited after that '&' (ctx:WxW)
#577: FILE: drivers/net/usb/dm9601.c:279:
+	u8 *hashes = (u8 *) & dev->private;
 	                    ^

WARNING: unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html
#930: FILE: drivers/net/usb/smsc75xx.c:1453:
+	pdata = (struct smsc75xx_priv *)kzalloc(sizeof(struct smsc75xx_priv),

ERROR: code indent should use tabs where possible
#1089: FILE: include/linux/usb/usbnet.h:24:
+        struct usb_cdc_header_desc      *header;$

WARNING: please, no spaces at the start of a line
#1089: FILE: include/linux/usb/usbnet.h:24:
+        struct usb_cdc_header_desc      *header;$

ERROR: code indent should use tabs where possible
#1090: FILE: include/linux/usb/usbnet.h:25:
+        struct usb_cdc_union_desc       *u;$

WARNING: please, no spaces at the start of a line
#1090: FILE: include/linux/usb/usbnet.h:25:
+        struct usb_cdc_union_desc       *u;$

ERROR: code indent should use tabs where possible
#1091: FILE: include/linux/usb/usbnet.h:26:
+        struct usb_cdc_ether_desc       *ether;$

WARNING: please, no spaces at the start of a line
#1091: FILE: include/linux/usb/usbnet.h:26:
+        struct usb_cdc_ether_desc       *ether;$

ERROR: code indent should use tabs where possible
#1092: FILE: include/linux/usb/usbnet.h:27:
+        struct usb_interface            *control;$

WARNING: please, no spaces at the start of a line
#1092: FILE: include/linux/usb/usbnet.h:27:
+        struct usb_interface            *control;$

ERROR: code indent should use tabs where possible
#1093: FILE: include/linux/usb/usbnet.h:28:
+        struct usb_interface            *data;$

WARNING: please, no spaces at the start of a line
#1093: FILE: include/linux/usb/usbnet.h:28:
+        struct usb_interface            *data;$

total: 6 errors, 8 warnings, 1 checks, 921 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

NOTE: Whitespace errors detected.
      You may wish to use scripts/cleanpatch or scripts/cleanfile

Commit 1d247059c4e8 ("net: usb: divorce private data and cdc state in usbnet") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.