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Date:   Thu, 1 Dec 2016 03:46:27 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Serge Semin <fancer.lancer@...il.com>
Cc:     kbuild-all@...org, jdmason@...zu.us, dave.jiang@...el.com,
        Allen.Hubbe@....com, Xiangliang.Yu@....com,
        Sergey.Semin@...latforms.ru, linux-ntb@...glegroups.com,
        linux-kernel@...r.kernel.org, Serge Semin <fancer.lancer@...il.com>
Subject: Re: [PATCH 03/22] NTB: Alter NTB API to support both inbound and
 outbound MW based interfaces

Hi Serge,

[auto build test ERROR on ntb/ntb-next]
[also build test ERROR on v4.9-rc7 next-20161130]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Serge-Semin/NTB-Alter-kernel-API-to-support-multi-port-devices/20161201-014939
base:   https://github.com/jonmason/ntb ntb-next
config: x86_64-randconfig-s5-12010242 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

Note: the linux-review/Serge-Semin/NTB-Alter-kernel-API-to-support-multi-port-devices/20161201-014939 HEAD ced946cf007084caf9a2ec237c898bbf1940b440 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   drivers/ntb/ntb_transport.c: In function 'ntb_free_mw':
>> drivers/ntb/ntb_transport.c:685:2: error: too few arguments to function 'ntb_mw_clear_trans'
     ntb_mw_clear_trans(nt->ndev, num_mw);
     ^~~~~~~~~~~~~~~~~~
   In file included from drivers/ntb/ntb_transport.c:62:0:
   include/linux/ntb.h:739:19: note: declared here
    static inline int ntb_mw_clear_trans(struct ntb_dev *ntb, int pidx, int widx)
                      ^~~~~~~~~~~~~~~~~~
   drivers/ntb/ntb_transport.c: In function 'ntb_set_mw':
>> drivers/ntb/ntb_transport.c:742:7: error: too few arguments to function 'ntb_mw_set_trans'
     rc = ntb_mw_set_trans(nt->ndev, num_mw, mw->dma_addr, mw->xlat_size);
          ^~~~~~~~~~~~~~~~
   In file included from drivers/ntb/ntb_transport.c:62:0:
   include/linux/ntb.h:718:19: note: declared here
    static inline int ntb_mw_set_trans(struct ntb_dev *ntb, int pidx, int widx,
                      ^~~~~~~~~~~~~~~~
   drivers/ntb/ntb_transport.c: In function 'ntb_transport_probe':
>> drivers/ntb/ntb_transport.c:1072:13: error: too few arguments to function 'ntb_mw_count'
     mw_count = ntb_mw_count(ndev);
                ^~~~~~~~~~~~
   In file included from drivers/ntb/ntb_transport.c:62:0:
   include/linux/ntb.h:669:19: note: declared here
    static inline int ntb_mw_count(struct ntb_dev *ntb, int pidx)
                      ^~~~~~~~~~~~
>> drivers/ntb/ntb_transport.c:1106:8: error: implicit declaration of function 'ntb_mw_get_range' [-Werror=implicit-function-declaration]
      rc = ntb_mw_get_range(ndev, i, &mw->phys_addr, &mw->phys_size,
           ^~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   drivers/ntb/test/ntb_perf.c: In function 'perf_free_mw':
>> drivers/ntb/test/ntb_perf.c:455:2: error: too few arguments to function 'ntb_mw_clear_trans'
     ntb_mw_clear_trans(perf->ntb, 0);
     ^~~~~~~~~~~~~~~~~~
   In file included from drivers/ntb/test/ntb_perf.c:60:0:
   include/linux/ntb.h:739:19: note: declared here
    static inline int ntb_mw_clear_trans(struct ntb_dev *ntb, int pidx, int widx)
                      ^~~~~~~~~~~~~~~~~~
   drivers/ntb/test/ntb_perf.c: In function 'perf_set_mw':
>> drivers/ntb/test/ntb_perf.c:491:7: error: too few arguments to function 'ntb_mw_set_trans'
     rc = ntb_mw_set_trans(perf->ntb, 0, mw->dma_addr, mw->xlat_size);
          ^~~~~~~~~~~~~~~~
   In file included from drivers/ntb/test/ntb_perf.c:60:0:
   include/linux/ntb.h:718:19: note: declared here
    static inline int ntb_mw_set_trans(struct ntb_dev *ntb, int pidx, int widx,
                      ^~~~~~~~~~~~~~~~
   drivers/ntb/test/ntb_perf.c: In function 'perf_setup_mw':
>> drivers/ntb/test/ntb_perf.c:562:7: error: implicit declaration of function 'ntb_mw_get_range' [-Werror=implicit-function-declaration]
     rc = ntb_mw_get_range(ntb, 0, &mw->phys_addr, &mw->phys_size,
          ^~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   drivers/ntb/hw/amd/ntb_hw_amd.c: In function 'amd_ntb_link_enable':
   drivers/ntb/hw/amd/ntb_hw_amd.c:256:24: error: 'NTB_TOPO_SEC' undeclared (first use in this function)
     if (ndev->ntb.topo == NTB_TOPO_SEC)
                           ^~~~~~~~~~~~
   drivers/ntb/hw/amd/ntb_hw_amd.c:256:24: note: each undeclared identifier is reported only once for each function it appears in
   drivers/ntb/hw/amd/ntb_hw_amd.c: In function 'amd_ntb_link_disable':
   drivers/ntb/hw/amd/ntb_hw_amd.c:277:24: error: 'NTB_TOPO_SEC' undeclared (first use in this function)
     if (ndev->ntb.topo == NTB_TOPO_SEC)
                           ^~~~~~~~~~~~
   drivers/ntb/hw/amd/ntb_hw_amd.c: At top level:
>> drivers/ntb/hw/amd/ntb_hw_amd.c:434:15: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
     .mw_count  = amd_ntb_mw_count,
                  ^~~~~~~~~~~~~~~~
   drivers/ntb/hw/amd/ntb_hw_amd.c:434:15: note: (near initialization for 'amd_ntb_ops.mw_count')
>> drivers/ntb/hw/amd/ntb_hw_amd.c:435:2: error: unknown field 'mw_get_range' specified in initializer
     .mw_get_range  = amd_ntb_mw_get_range,
     ^
   drivers/ntb/hw/amd/ntb_hw_amd.c:435:19: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
     .mw_get_range  = amd_ntb_mw_get_range,
                      ^~~~~~~~~~~~~~~~~~~~
   drivers/ntb/hw/amd/ntb_hw_amd.c:435:19: note: (near initialization for 'amd_ntb_ops.mw_get_align')
   drivers/ntb/hw/amd/ntb_hw_amd.c:436:19: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
     .mw_set_trans  = amd_ntb_mw_set_trans,
                      ^~~~~~~~~~~~~~~~~~~~
   drivers/ntb/hw/amd/ntb_hw_amd.c:436:19: note: (near initialization for 'amd_ntb_ops.mw_set_trans')
   drivers/ntb/hw/amd/ntb_hw_amd.c: In function 'amd_init_ntb':
   drivers/ntb/hw/amd/ntb_hw_amd.c:880:7: error: 'NTB_TOPO_PRI' undeclared (first use in this function)
     case NTB_TOPO_PRI:
          ^~~~~~~~~~~~
   drivers/ntb/hw/amd/ntb_hw_amd.c:881:7: error: 'NTB_TOPO_SEC' undeclared (first use in this function)
     case NTB_TOPO_SEC:
          ^~~~~~~~~~~~
   drivers/ntb/hw/amd/ntb_hw_amd.c: In function 'amd_get_topo':
   drivers/ntb/hw/amd/ntb_hw_amd.c:915:10: error: 'NTB_TOPO_SEC' undeclared (first use in this function)
      return NTB_TOPO_SEC;
             ^~~~~~~~~~~~
   drivers/ntb/hw/amd/ntb_hw_amd.c:917:10: error: 'NTB_TOPO_PRI' undeclared (first use in this function)
      return NTB_TOPO_PRI;
             ^~~~~~~~~~~~
   drivers/ntb/hw/amd/ntb_hw_amd.c:918:1: warning: control reaches end of non-void function [-Wreturn-type]
    }
    ^
   cc1: some warnings being treated as errors

vim +/ntb_mw_clear_trans +685 drivers/ntb/ntb_transport.c

e26a5843 Allen Hubbe 2015-04-09  679  	struct ntb_transport_mw *mw = &nt->mw_vec[num_mw];
e26a5843 Allen Hubbe 2015-04-09  680  	struct pci_dev *pdev = nt->ndev->pdev;
b77b2637 Jon Mason   2013-02-01  681  
b77b2637 Jon Mason   2013-02-01  682  	if (!mw->virt_addr)
b77b2637 Jon Mason   2013-02-01  683  		return;
b77b2637 Jon Mason   2013-02-01  684  
e26a5843 Allen Hubbe 2015-04-09 @685  	ntb_mw_clear_trans(nt->ndev, num_mw);
e26a5843 Allen Hubbe 2015-04-09  686  	dma_free_coherent(&pdev->dev, mw->buff_size,
e26a5843 Allen Hubbe 2015-04-09  687  			  mw->virt_addr, mw->dma_addr);
e26a5843 Allen Hubbe 2015-04-09  688  	mw->xlat_size = 0;
e26a5843 Allen Hubbe 2015-04-09  689  	mw->buff_size = 0;
b77b2637 Jon Mason   2013-02-01  690  	mw->virt_addr = NULL;
b77b2637 Jon Mason   2013-02-01  691  }
b77b2637 Jon Mason   2013-02-01  692  
e26a5843 Allen Hubbe 2015-04-09  693  static int ntb_set_mw(struct ntb_transport_ctx *nt, int num_mw,
8c9edf63 Allen Hubbe 2015-07-13  694  		      resource_size_t size)
fce8a7bb Jon Mason   2012-11-16  695  {
e26a5843 Allen Hubbe 2015-04-09  696  	struct ntb_transport_mw *mw = &nt->mw_vec[num_mw];
e26a5843 Allen Hubbe 2015-04-09  697  	struct pci_dev *pdev = nt->ndev->pdev;
8c9edf63 Allen Hubbe 2015-07-13  698  	size_t xlat_size, buff_size;
e26a5843 Allen Hubbe 2015-04-09  699  	int rc;
e26a5843 Allen Hubbe 2015-04-09  700  
8c9edf63 Allen Hubbe 2015-07-13  701  	if (!size)
8c9edf63 Allen Hubbe 2015-07-13  702  		return -EINVAL;
8c9edf63 Allen Hubbe 2015-07-13  703  
e26a5843 Allen Hubbe 2015-04-09  704  	xlat_size = round_up(size, mw->xlat_align_size);
e26a5843 Allen Hubbe 2015-04-09  705  	buff_size = round_up(size, mw->xlat_align);
fce8a7bb Jon Mason   2012-11-16  706  
b77b2637 Jon Mason   2013-02-01  707  	/* No need to re-setup */
e26a5843 Allen Hubbe 2015-04-09  708  	if (mw->xlat_size == xlat_size)
b77b2637 Jon Mason   2013-02-01  709  		return 0;
b77b2637 Jon Mason   2013-02-01  710  
e26a5843 Allen Hubbe 2015-04-09  711  	if (mw->buff_size)
b77b2637 Jon Mason   2013-02-01  712  		ntb_free_mw(nt, num_mw);
b77b2637 Jon Mason   2013-02-01  713  
e26a5843 Allen Hubbe 2015-04-09  714  	/* Alloc memory for receiving data.  Must be aligned */
e26a5843 Allen Hubbe 2015-04-09  715  	mw->xlat_size = xlat_size;
e26a5843 Allen Hubbe 2015-04-09  716  	mw->buff_size = buff_size;
fce8a7bb Jon Mason   2012-11-16  717  
e26a5843 Allen Hubbe 2015-04-09  718  	mw->virt_addr = dma_alloc_coherent(&pdev->dev, buff_size,
e26a5843 Allen Hubbe 2015-04-09  719  					   &mw->dma_addr, GFP_KERNEL);
fce8a7bb Jon Mason   2012-11-16  720  	if (!mw->virt_addr) {
e26a5843 Allen Hubbe 2015-04-09  721  		mw->xlat_size = 0;
e26a5843 Allen Hubbe 2015-04-09  722  		mw->buff_size = 0;
8c9edf63 Allen Hubbe 2015-07-13  723  		dev_err(&pdev->dev, "Unable to alloc MW buff of size %zu\n",
e26a5843 Allen Hubbe 2015-04-09  724  			buff_size);
fce8a7bb Jon Mason   2012-11-16  725  		return -ENOMEM;
fce8a7bb Jon Mason   2012-11-16  726  	}
fce8a7bb Jon Mason   2012-11-16  727  
3cc5ba19 Dave Jiang  2014-08-28  728  	/*
3cc5ba19 Dave Jiang  2014-08-28  729  	 * we must ensure that the memory address allocated is BAR size
3cc5ba19 Dave Jiang  2014-08-28  730  	 * aligned in order for the XLAT register to take the value. This
3cc5ba19 Dave Jiang  2014-08-28  731  	 * is a requirement of the hardware. It is recommended to setup CMA
3cc5ba19 Dave Jiang  2014-08-28  732  	 * for BAR sizes equal or greater than 4MB.
3cc5ba19 Dave Jiang  2014-08-28  733  	 */
e26a5843 Allen Hubbe 2015-04-09  734  	if (!IS_ALIGNED(mw->dma_addr, mw->xlat_align)) {
e26a5843 Allen Hubbe 2015-04-09  735  		dev_err(&pdev->dev, "DMA memory %pad is not aligned\n",
3cc5ba19 Dave Jiang  2014-08-28  736  			&mw->dma_addr);
3cc5ba19 Dave Jiang  2014-08-28  737  		ntb_free_mw(nt, num_mw);
3cc5ba19 Dave Jiang  2014-08-28  738  		return -ENOMEM;
3cc5ba19 Dave Jiang  2014-08-28  739  	}
3cc5ba19 Dave Jiang  2014-08-28  740  
fce8a7bb Jon Mason   2012-11-16  741  	/* Notify HW the memory location of the receive buffer */
e26a5843 Allen Hubbe 2015-04-09 @742  	rc = ntb_mw_set_trans(nt->ndev, num_mw, mw->dma_addr, mw->xlat_size);
e26a5843 Allen Hubbe 2015-04-09  743  	if (rc) {
e26a5843 Allen Hubbe 2015-04-09  744  		dev_err(&pdev->dev, "Unable to set mw%d translation", num_mw);
e26a5843 Allen Hubbe 2015-04-09  745  		ntb_free_mw(nt, num_mw);

:::::: The code at line 685 was first introduced by commit
:::::: e26a5843f7f5014ae4460030ca4de029a3ac35d3 NTB: Split ntb_hw_intel and ntb_transport drivers

:::::: TO: Allen Hubbe <Allen.Hubbe@....com>
:::::: CC: Jon Mason <jdmason@...zu.us>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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