Hi Selvin, I love your patch! Perhaps something to improve: [auto build test WARNING on rdma/for-next] [also build test WARNING on v5.11-rc2 next-20210104] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Selvin-Xavier/RDMA-bnxt_re-Allow-bigger-user-MRs/20210107-145124 base: https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next config: ia64-allmodconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/a37827df6f226ed7b3fd1a3ccc4c47f5b893adf9 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Selvin-Xavier/RDMA-bnxt_re-Allow-bigger-user-MRs/20210107-145124 git checkout a37827df6f226ed7b3fd1a3ccc4c47f5b893adf9 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/infiniband/hw/bnxt_re/ib_verbs.c: In function 'bnxt_re_create_fence_mr': >> drivers/infiniband/hw/bnxt_re/ib_verbs.c:472:6: warning: variable 'pbl_tbl' set but not used [-Wunused-but-set-variable] 472 | u64 pbl_tbl; | ^~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for FRAME_POINTER Depends on DEBUG_KERNEL && (M68K || UML || SUPERH) || ARCH_WANT_FRAME_POINTERS Selected by - FAULT_INJECTION_STACKTRACE_FILTER && FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT && !X86_64 && !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM && !ARC && !X86 vim +/pbl_tbl +472 drivers/infiniband/hw/bnxt_re/ib_verbs.c 9152e0b722b290 Eddie Wai 2017-06-14 462 9152e0b722b290 Eddie Wai 2017-06-14 463 static int bnxt_re_create_fence_mr(struct bnxt_re_pd *pd) 9152e0b722b290 Eddie Wai 2017-06-14 464 { 9152e0b722b290 Eddie Wai 2017-06-14 465 int mr_access_flags = IB_ACCESS_LOCAL_WRITE | IB_ACCESS_MW_BIND; 9152e0b722b290 Eddie Wai 2017-06-14 466 struct bnxt_re_fence_data *fence = &pd->fence; 9152e0b722b290 Eddie Wai 2017-06-14 467 struct bnxt_re_dev *rdev = pd->rdev; 9152e0b722b290 Eddie Wai 2017-06-14 468 struct device *dev = &rdev->en_dev->pdev->dev; 9152e0b722b290 Eddie Wai 2017-06-14 469 struct bnxt_re_mr *mr = NULL; 9152e0b722b290 Eddie Wai 2017-06-14 470 dma_addr_t dma_addr = 0; 9152e0b722b290 Eddie Wai 2017-06-14 471 struct ib_mw *mw; 9152e0b722b290 Eddie Wai 2017-06-14 @472 u64 pbl_tbl; 9152e0b722b290 Eddie Wai 2017-06-14 473 int rc; 9152e0b722b290 Eddie Wai 2017-06-14 474 9152e0b722b290 Eddie Wai 2017-06-14 475 dma_addr = dma_map_single(dev, fence->va, BNXT_RE_FENCE_BYTES, 9152e0b722b290 Eddie Wai 2017-06-14 476 DMA_BIDIRECTIONAL); 9152e0b722b290 Eddie Wai 2017-06-14 477 rc = dma_mapping_error(dev, dma_addr); 9152e0b722b290 Eddie Wai 2017-06-14 478 if (rc) { 6ccad8483b2866 Devesh Sharma 2020-02-15 479 ibdev_err(&rdev->ibdev, "Failed to dma-map fence-MR-mem\n"); 9152e0b722b290 Eddie Wai 2017-06-14 480 rc = -EIO; 9152e0b722b290 Eddie Wai 2017-06-14 481 fence->dma_addr = 0; 9152e0b722b290 Eddie Wai 2017-06-14 482 goto fail; 9152e0b722b290 Eddie Wai 2017-06-14 483 } 9152e0b722b290 Eddie Wai 2017-06-14 484 fence->dma_addr = dma_addr; 9152e0b722b290 Eddie Wai 2017-06-14 485 9152e0b722b290 Eddie Wai 2017-06-14 486 /* Allocate a MR */ 9152e0b722b290 Eddie Wai 2017-06-14 487 mr = kzalloc(sizeof(*mr), GFP_KERNEL); 9152e0b722b290 Eddie Wai 2017-06-14 488 if (!mr) { 9152e0b722b290 Eddie Wai 2017-06-14 489 rc = -ENOMEM; 9152e0b722b290 Eddie Wai 2017-06-14 490 goto fail; 9152e0b722b290 Eddie Wai 2017-06-14 491 } 9152e0b722b290 Eddie Wai 2017-06-14 492 fence->mr = mr; 9152e0b722b290 Eddie Wai 2017-06-14 493 mr->rdev = rdev; 9152e0b722b290 Eddie Wai 2017-06-14 494 mr->qplib_mr.pd = &pd->qplib_pd; 9152e0b722b290 Eddie Wai 2017-06-14 495 mr->qplib_mr.type = CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR; 9152e0b722b290 Eddie Wai 2017-06-14 496 mr->qplib_mr.flags = __from_ib_access_flags(mr_access_flags); 9152e0b722b290 Eddie Wai 2017-06-14 497 rc = bnxt_qplib_alloc_mrw(&rdev->qplib_res, &mr->qplib_mr); 9152e0b722b290 Eddie Wai 2017-06-14 498 if (rc) { 6ccad8483b2866 Devesh Sharma 2020-02-15 499 ibdev_err(&rdev->ibdev, "Failed to alloc fence-HW-MR\n"); 9152e0b722b290 Eddie Wai 2017-06-14 500 goto fail; 9152e0b722b290 Eddie Wai 2017-06-14 501 } 9152e0b722b290 Eddie Wai 2017-06-14 502 9152e0b722b290 Eddie Wai 2017-06-14 503 /* Register MR */ 9152e0b722b290 Eddie Wai 2017-06-14 504 mr->ib_mr.lkey = mr->qplib_mr.lkey; 9152e0b722b290 Eddie Wai 2017-06-14 505 mr->qplib_mr.va = (u64)(unsigned long)fence->va; 9152e0b722b290 Eddie Wai 2017-06-14 506 mr->qplib_mr.total_size = BNXT_RE_FENCE_BYTES; 9152e0b722b290 Eddie Wai 2017-06-14 507 pbl_tbl = dma_addr; a37827df6f226e Selvin Xavier 2021-01-06 508 rc = bnxt_qplib_reg_mr(&rdev->qplib_res, &mr->qplib_mr, NULL, a37827df6f226e Selvin Xavier 2021-01-06 509 BNXT_RE_FENCE_PBL_SIZE, PAGE_SIZE); 9152e0b722b290 Eddie Wai 2017-06-14 510 if (rc) { 6ccad8483b2866 Devesh Sharma 2020-02-15 511 ibdev_err(&rdev->ibdev, "Failed to register fence-MR\n"); 9152e0b722b290 Eddie Wai 2017-06-14 512 goto fail; 9152e0b722b290 Eddie Wai 2017-06-14 513 } 9152e0b722b290 Eddie Wai 2017-06-14 514 mr->ib_mr.rkey = mr->qplib_mr.rkey; 9152e0b722b290 Eddie Wai 2017-06-14 515 9152e0b722b290 Eddie Wai 2017-06-14 516 /* Create a fence MW only for kernel consumers */ 9152e0b722b290 Eddie Wai 2017-06-14 517 mw = bnxt_re_alloc_mw(&pd->ib_pd, IB_MW_TYPE_1, NULL); 653f0a71daf1a7 Dan Carpenter 2017-07-10 518 if (IS_ERR(mw)) { 6ccad8483b2866 Devesh Sharma 2020-02-15 519 ibdev_err(&rdev->ibdev, 9152e0b722b290 Eddie Wai 2017-06-14 520 "Failed to create fence-MW for PD: %p\n", pd); 653f0a71daf1a7 Dan Carpenter 2017-07-10 521 rc = PTR_ERR(mw); 9152e0b722b290 Eddie Wai 2017-06-14 522 goto fail; 9152e0b722b290 Eddie Wai 2017-06-14 523 } 9152e0b722b290 Eddie Wai 2017-06-14 524 fence->mw = mw; 9152e0b722b290 Eddie Wai 2017-06-14 525 9152e0b722b290 Eddie Wai 2017-06-14 526 bnxt_re_create_fence_wqe(pd); 9152e0b722b290 Eddie Wai 2017-06-14 527 return 0; 9152e0b722b290 Eddie Wai 2017-06-14 528 9152e0b722b290 Eddie Wai 2017-06-14 529 fail: 9152e0b722b290 Eddie Wai 2017-06-14 530 bnxt_re_destroy_fence_mr(pd); 9152e0b722b290 Eddie Wai 2017-06-14 531 return rc; 9152e0b722b290 Eddie Wai 2017-06-14 532 } 9152e0b722b290 Eddie Wai 2017-06-14 533 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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