Hi Bob, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on 66fb1d5df6ace316a4a6e2c31e13fc123ea2b644] url: https://github.com/intel-lab-lkp/linux/commits/Bob-Pearson/RDMA-rxe-Replace-exists-by-rxe-in-rxe-c/20230224-113206 base: 66fb1d5df6ace316a4a6e2c31e13fc123ea2b644 patch link: https://lore.kernel.org/r/20230224032916.151490-5-rpearsonhpe%40gmail.com patch subject: [PATCH for-next v2 4/4] RDMA/rxe: Add error messages config: arm-randconfig-r004-20230222 (https://download.01.org/0day-ci/archive/20230225/202302250056.mgmG5a52-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project db89896bbbd2251fff457699635acbbedeead27f) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/intel-lab-lkp/linux/commit/39493983f5f2a6f4c7d19ba3b28e2e0537a42247 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Bob-Pearson/RDMA-rxe-Replace-exists-by-rxe-in-rxe-c/20230224-113206 git checkout 39493983f5f2a6f4c7d19ba3b28e2e0537a42247 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/infiniband/sw/rxe/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202302250056.mgmG5a52-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/infiniband/sw/rxe/rxe_verbs.c:600:13: warning: variable 'err' is uninitialized when used here [-Wuninitialized] mask, err); ^~~ drivers/infiniband/sw/rxe/rxe.h:53:51: note: expanded from macro 'rxe_dbg_qp' "qp#%d %s: " fmt, (qp)->elem.index, __func__, ##__VA_ARGS__) ^~~~~~~~~~~ drivers/infiniband/sw/rxe/rxe_verbs.c:596:9: note: initialize the variable 'err' to silence this warning int err; ^ = 0 1 warning generated. vim +/err +600 drivers/infiniband/sw/rxe/rxe_verbs.c 590 591 static int rxe_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 592 int mask, struct ib_udata *udata) 593 { 594 struct rxe_dev *rxe = to_rdev(ibqp->device); 595 struct rxe_qp *qp = to_rqp(ibqp); 596 int err; 597 598 if (mask & ~IB_QP_ATTR_STANDARD_BITS) { 599 rxe_dbg_qp(qp, "unsupported mask = 0x%x, err = %d", > 600 mask, err); 601 err = -EOPNOTSUPP; 602 goto err_out; 603 } 604 605 err = rxe_qp_chk_attr(rxe, qp, attr, mask); 606 if (err) { 607 rxe_dbg_qp(qp, "bad mask/attr, err = %d", err); 608 goto err_out; 609 } 610 611 err = rxe_qp_from_attr(qp, attr, mask, udata); 612 if (err) { 613 rxe_dbg_qp(qp, "modify qp failed, err = %d", err); 614 goto err_out; 615 } 616 617 if ((mask & IB_QP_AV) && (attr->ah_attr.ah_flags & IB_AH_GRH)) 618 qp->src_port = rdma_get_udp_sport(attr->ah_attr.grh.flow_label, 619 qp->ibqp.qp_num, 620 qp->attr.dest_qp_num); 621 622 return 0; 623 624 err_out: 625 rxe_err_qp(qp, "returned err = %d", err); 626 return err; 627 } 628 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
