Hi Daisuke, kernel test robot noticed the following build warnings: [auto build test WARNING on rdma/for-next] [also build test WARNING on linus/master v6.6 next-20231109] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Daisuke-Matsuda/RDMA-rxe-Always-defer-tasks-on-responder-and-completer-to-workqueue/20231109-185612 base: https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next patch link: https://lore.kernel.org/r/5d46bd682aa8e3d5cabc38ca1cd67d2976f2731d.1699503619.git.matsuda-daisuke%40fujitsu.com patch subject: [PATCH for-next v7 5/7] RDMA/rxe: Allow registering MRs for On-Demand Paging config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20231110/202311100130.efgRVVKL-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231110/202311100130.efgRVVKL-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202311100130.efgRVVKL-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/infiniband/sw/rxe/rxe_odp.c: In function 'rxe_mr_set_xarray': >> drivers/infiniband/sw/rxe/rxe_odp.c:35:22: warning: variable 'entry' set but not used [-Wunused-but-set-variable] 35 | void *page, *entry; | ^~~~~ vim +/entry +35 drivers/infiniband/sw/rxe/rxe_odp.c 29 30 static void rxe_mr_set_xarray(struct rxe_mr *mr, unsigned long start, 31 unsigned long end, unsigned long *pfn_list) 32 { 33 unsigned long upper = rxe_mr_iova_to_index(mr, end - 1); 34 unsigned long lower = rxe_mr_iova_to_index(mr, start); > 35 void *page, *entry; 36 37 XA_STATE(xas, &mr->page_list, lower); 38 39 xas_lock(&xas); 40 while (xas.xa_index <= upper) { 41 if (pfn_list[xas.xa_index] & HMM_PFN_WRITE) { 42 page = xa_tag_pointer(hmm_pfn_to_page(pfn_list[xas.xa_index]), 43 RXE_ODP_WRITABLE_BIT); 44 } else 45 page = hmm_pfn_to_page(pfn_list[xas.xa_index]); 46 47 xas_store(&xas, page); 48 entry = xas_next(&xas); 49 } 50 xas_unlock(&xas); 51 } 52 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
