netdev - Re: [PATCH 15/15] i40iw: changes for build of i40iw module

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Date:	Thu, 17 Dec 2015 04:34:36 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Faisal Latif <faisal.latif@...el.com>
Cc:	kbuild-all@...org, dledford@...hat.com, linux-rdma@...r.kernel.org,
	netdev@...r.kernel.org, jeffrey.t.kirsher@...el.com,
	e1000-rdma@...ts.sourceforge.net, faisal.latif@...el.com
Subject: Re: [PATCH 15/15] i40iw: changes for build of i40iw module

Hi Faisal,

[auto build test WARNING on net/master]
[also build test WARNING on v4.4-rc5 next-20151216]
[cannot apply to net-next/master]

url:    https://github.com/0day-ci/linux/commits/Faisal-Latif/add-Intel-R-X722-iWARP-driver/20151217-040340
config: arm-allyesconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All warnings (new ones prefixed by >>):

   In file included from include/linux/byteorder/big_endian.h:4:0,
                    from arch/arm/include/uapi/asm/byteorder.h:19,
                    from include/asm-generic/bitops/le.h:5,
                    from arch/arm/include/asm/bitops.h:340,
                    from include/linux/bitops.h:36,
                    from include/linux/kernel.h:10,
                    from include/linux/skbuff.h:17,
                    from include/linux/ip.h:20,
                    from drivers/infiniband/hw/i40iw/i40iw_cm.c:36:
   drivers/infiniband/hw/i40iw/i40iw_cm.c: In function 'i40iw_init_tcp_ctx':
   include/uapi/linux/byteorder/big_endian.h:32:26: warning: large integer implicitly truncated to unsigned type [-Woverflow]
    #define __cpu_to_le32(x) ((__force __le32)__swab32((x)))
                             ^
   include/linux/byteorder/generic.h:87:21: note: in expansion of macro '__cpu_to_le32'
    #define cpu_to_le32 __cpu_to_le32
                        ^
>> drivers/infiniband/hw/i40iw/i40iw_cm.c:3513:18: note: in expansion of macro 'cpu_to_le32'
     tcp_info->ttl = cpu_to_le32(I40IW_DEFAULT_TTL);
                     ^

vim +/cpu_to_le32 +3513 drivers/infiniband/hw/i40iw/i40iw_cm.c

2d207efd Faisal Latif 2015-12-16  3497   * i40iw_init_tcp_ctx - setup qp context
2d207efd Faisal Latif 2015-12-16  3498   * @cm_node: connection's node
2d207efd Faisal Latif 2015-12-16  3499   * @tcp_info: offload info for tcp
2d207efd Faisal Latif 2015-12-16  3500   * @iwqp: associate qp for the connection
2d207efd Faisal Latif 2015-12-16  3501   */
2d207efd Faisal Latif 2015-12-16  3502  static void i40iw_init_tcp_ctx(struct i40iw_cm_node *cm_node,
2d207efd Faisal Latif 2015-12-16  3503  			       struct i40iw_tcp_offload_info *tcp_info,
2d207efd Faisal Latif 2015-12-16  3504  			       struct i40iw_qp *iwqp)
2d207efd Faisal Latif 2015-12-16  3505  {
2d207efd Faisal Latif 2015-12-16  3506  	tcp_info->ipv4 = cm_node->ipv4;
2d207efd Faisal Latif 2015-12-16  3507  	tcp_info->drop_ooo_seg = true;
2d207efd Faisal Latif 2015-12-16  3508  	tcp_info->wscale = true;
2d207efd Faisal Latif 2015-12-16  3509  	tcp_info->ignore_tcp_opt = true;
2d207efd Faisal Latif 2015-12-16  3510  	tcp_info->ignore_tcp_uns_opt = true;
2d207efd Faisal Latif 2015-12-16  3511  	tcp_info->no_nagle = false;
2d207efd Faisal Latif 2015-12-16  3512  
2d207efd Faisal Latif 2015-12-16 @3513  	tcp_info->ttl = cpu_to_le32(I40IW_DEFAULT_TTL);
2d207efd Faisal Latif 2015-12-16  3514  	tcp_info->rtt_var = cpu_to_le32(I40IW_DEFAULT_RTT_VAR);
2d207efd Faisal Latif 2015-12-16  3515  	tcp_info->ss_thresh = cpu_to_le32(I40IW_DEFAULT_SS_THRESH);
2d207efd Faisal Latif 2015-12-16  3516  	tcp_info->rexmit_thresh = I40IW_DEFAULT_REXMIT_THRESH;
2d207efd Faisal Latif 2015-12-16  3517  
2d207efd Faisal Latif 2015-12-16  3518  	tcp_info->tcp_state = I40IW_TCP_STATE_ESTABLISHED;
2d207efd Faisal Latif 2015-12-16  3519  	tcp_info->snd_wscale = cm_node->tcp_cntxt.snd_wscale;
2d207efd Faisal Latif 2015-12-16  3520  	tcp_info->rcv_wscale = cm_node->tcp_cntxt.rcv_wscale;
2d207efd Faisal Latif 2015-12-16  3521  

:::::: The code at line 3513 was first introduced by commit
:::::: 2d207efd7fd9e5a190b2ebd6f077139412b0343f i40iw: add connection management code

:::::: TO: Faisal Latif <faisal.latif@...el.com>
:::::: CC: 0day robot <fengguang.wu@...el.com>

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