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

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Date:	Thu, 17 Dec 2015 13:14:42 +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: sparc-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=sparc 

All warnings (new ones prefixed by >>):

   drivers/infiniband/hw/i40iw/i40iw_verbs.c: In function 'i40iw_setup_kmode_qp':
>> drivers/infiniband/hw/i40iw/i40iw_verbs.c:571:28: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     info->rq_pa = (uintptr_t)((u8 *)mem->pa + (sqdepth * I40IW_QP_WQE_MIN_SIZE));
                               ^

vim +571 drivers/infiniband/hw/i40iw/i40iw_verbs.c

e4d636f5 Faisal Latif 2015-12-16  555  	ukinfo->rq_wrid_array = (u64 *)&ukinfo->sq_wrtrk_array[sqdepth];
e4d636f5 Faisal Latif 2015-12-16  556  
e4d636f5 Faisal Latif 2015-12-16  557  	size = (sqdepth + rqdepth) * I40IW_QP_WQE_MIN_SIZE;
e4d636f5 Faisal Latif 2015-12-16  558  	size += (I40IW_SHADOW_AREA_SIZE << 3);
e4d636f5 Faisal Latif 2015-12-16  559  
e4d636f5 Faisal Latif 2015-12-16  560  	status = i40iw_allocate_dma_mem(iwdev->sc_dev.hw, mem, size, 256);
e4d636f5 Faisal Latif 2015-12-16  561  	if (status) {
e4d636f5 Faisal Latif 2015-12-16  562  		kfree(ukinfo->sq_wrtrk_array);
e4d636f5 Faisal Latif 2015-12-16  563  		ukinfo->sq_wrtrk_array = NULL;
e4d636f5 Faisal Latif 2015-12-16  564  		return -ENOMEM;
e4d636f5 Faisal Latif 2015-12-16  565  	}
e4d636f5 Faisal Latif 2015-12-16  566  
e4d636f5 Faisal Latif 2015-12-16  567  	ukinfo->sq = mem->va;
e4d636f5 Faisal Latif 2015-12-16  568  	info->sq_pa = mem->pa;
e4d636f5 Faisal Latif 2015-12-16  569  
e4d636f5 Faisal Latif 2015-12-16  570  	ukinfo->rq = (u64 *)((u8 *)mem->va + (sqdepth * I40IW_QP_WQE_MIN_SIZE));
e4d636f5 Faisal Latif 2015-12-16 @571  	info->rq_pa = (uintptr_t)((u8 *)mem->pa + (sqdepth * I40IW_QP_WQE_MIN_SIZE));
e4d636f5 Faisal Latif 2015-12-16  572  
e4d636f5 Faisal Latif 2015-12-16  573  	ukinfo->shadow_area = (u64 *)((u8 *)ukinfo->rq +
e4d636f5 Faisal Latif 2015-12-16  574  				      (rqdepth * I40IW_QP_WQE_MIN_SIZE));
e4d636f5 Faisal Latif 2015-12-16  575  	info->shadow_area_pa = info->rq_pa + (rqdepth * I40IW_QP_WQE_MIN_SIZE);
e4d636f5 Faisal Latif 2015-12-16  576  
e4d636f5 Faisal Latif 2015-12-16  577  	ukinfo->sq_size = sq_size;
e4d636f5 Faisal Latif 2015-12-16  578  	ukinfo->rq_size = rq_size;
e4d636f5 Faisal Latif 2015-12-16  579  	ukinfo->qp_id = iwqp->ibqp.qp_num;

:::::: The code at line 571 was first introduced by commit
:::::: e4d636f5c9dea5d2dd1f5c74e3a2235218a537a8 i40iw: add files for iwarp interface

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

---
0-DAY kernel test infrastructure                Open Source Technology Center
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