netdev - Re: [PATCH net-next 1/1 v2] net: rmnet

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Date:   Tue, 14 Mar 2017 06:24:32 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Subash Abhinov Kasiviswanathan <subashab@...eaurora.org>
Cc:     kbuild-all@...org, netdev@...r.kernel.org, davem@...emloft.net,
        fengguang.wu@...el.com,
        Subash Abhinov Kasiviswanathan <subashab@...eaurora.org>
Subject: Re: [PATCH net-next 1/1 v2] net: rmnet_data: Initial implementation

Hi Subash,

[auto build test WARNING on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Subash-Abhinov-Kasiviswanathan/net-rmnet_data-Initial-implementation/20170313-174754
reproduce:
        # apt-get install sparse
        make ARCH=x86_64 allmodconfig
        make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

   include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> include/uapi/linux/rmnet_data.h:46:25: sparse: invalid bitfield specifier for type restricted __le16.
   include/uapi/linux/rmnet_data.h:47:19: sparse: invalid bitfield specifier for type restricted __le16.

vim +46 include/uapi/linux/rmnet_data.h

    30	#define RMNET_EGRESS_FORMAT_AGGREGATION         (1<<2)
    31	#define RMNET_EGRESS_FORMAT_MUXING              (1<<3)
    32	#define RMNET_EGRESS_FORMAT_MAP_CKSUMV3         (1<<4)
    33	#define RMNET_EGRESS_FORMAT_MAP_CKSUMV4         (1<<5)
    34	
    35	#define RMNET_INGRESS_FIX_ETHERNET              (1<<0)
    36	#define RMNET_INGRESS_FORMAT_MAP                (1<<1)
    37	#define RMNET_INGRESS_FORMAT_DEAGGREGATION      (1<<2)
    38	#define RMNET_INGRESS_FORMAT_DEMUXING           (1<<3)
    39	#define RMNET_INGRESS_FORMAT_MAP_COMMANDS       (1<<4)
    40	#define RMNET_INGRESS_FORMAT_MAP_CKSUMV3        (1<<5)
    41	#define RMNET_INGRESS_FORMAT_MAP_CKSUMV4        (1<<6)
    42	
    43	struct rmnet_nl_msg_s {
    44		__le16 reserved;
    45		__le16 message_type;
  > 46		__le16 reserved2:14;
    47		__le16 crd:2;
    48		union {
    49			__le16 arg_length;
    50			__le16 return_code;
    51		};
    52		union {
    53			__u8 data[RMNET_NL_DATA_MAX_LEN];
    54			struct {

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