Hi John, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v4.19-rc7 next-20181008] [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/john-hubbard-gmail-com/get_user_pages-and-RDMA-first-steps/20181009-152159 config: x86_64-randconfig-s4-10091707 (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): drivers/infiniband/hw/qib/qib_user_sdma.c: In function 'qib_user_sdma_init_frag': >> drivers/infiniband/hw/qib/qib_user_sdma.c:269:24: warning: assignment makes integer from pointer without a cast [-Wint-conversion] pkt->addr[i].put_page = put_user_page; ^ vim +269 drivers/infiniband/hw/qib/qib_user_sdma.c 257 258 static void qib_user_sdma_init_frag(struct qib_user_sdma_pkt *pkt, 259 int i, u16 offset, u16 len, 260 u16 first_desc, u16 last_desc, 261 u16 put_page, u16 dma_mapped, 262 struct page *page, void *kvaddr, 263 dma_addr_t dma_addr, u16 dma_length) 264 { 265 pkt->addr[i].offset = offset; 266 pkt->addr[i].length = len; 267 pkt->addr[i].first_desc = first_desc; 268 pkt->addr[i].last_desc = last_desc; > 269 pkt->addr[i].put_page = put_user_page; 270 pkt->addr[i].dma_mapped = dma_mapped; 271 pkt->addr[i].page = page; 272 pkt->addr[i].kvaddr = kvaddr; 273 pkt->addr[i].addr = dma_addr; 274 pkt->addr[i].dma_length = dma_length; 275 } 276 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation