tree: https://git.kernel.org/pub/scm/linux/kernel/git/mel/linux.git mm-bulk-rebase-v5r2 head: 5ce1d4eb5aa31146052f4499ca77642afb31165b commit: fa305fb67e08257558495fdfce8b5863f48c0115 [12/13] SUNRPC: Refresh rq_pages using a bulk page allocator config: i386-randconfig-a001-20210313 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/mel/linux.git/commit/?id=... git remote add mel https://git.kernel.org/pub/scm/linux/kernel/git/mel/linux.git git fetch --no-tags mel mm-bulk-rebase-v5r2 git checkout fa305fb67e08257558495fdfce8b5863f48c0115 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): net/sunrpc/svc_xprt.c: In function 'svc_alloc_arg': net/sunrpc/svc_xprt.c:666:45: warning: passing argument 3 of 'alloc_pages_bulk' makes pointer from integer without a cast [-Wint-conversion] 666 | needed -= alloc_pages_bulk(GFP_KERNEL, 0, needed, &list); | ^~~~~~ | | | long unsigned int In file included from include/linux/slab.h:15, from net/sunrpc/svc_xprt.c:12: include/linux/gfp.h:527:71: note: expected 'struct list_head *' but argument is of type 'long unsigned int' 527 | alloc_pages_bulk(gfp_t gfp, unsigned long nr_pages, struct list_head *list) | ~~~~~~~~~~~~~~~~~~^~~~ 666 | needed -= alloc_pages_bulk(GFP_KERNEL, 0, needed, &list); | ^~~~~~~~~~~~~~~~ In file included from include/linux/slab.h:15, from net/sunrpc/svc_xprt.c:12: include/linux/gfp.h:527:1: note: declared here 527 | alloc_pages_bulk(gfp_t gfp, unsigned long nr_pages, struct list_head *list) | ^~~~~~~~~~~~~~~~ vim +/alloc_pages_bulk +666 net/sunrpc/svc_xprt.c 641 642 static int svc_alloc_arg(struct svc_rqst *rqstp) 643 { 644 struct svc_serv *serv = rqstp->rq_server; 645 unsigned long needed; 646 struct xdr_buf *arg; 647 struct page *page; 648 LIST_HEAD(list); 649 int pages; 650 int i; 651 652 pages = (serv->sv_max_mesg + 2 * PAGE_SIZE) >> PAGE_SHIFT; 653 if (pages > RPCSVC_MAXPAGES) { 654 pr_warn_once("svc: warning: pages=%u > RPCSVC_MAXPAGES=%lu\n", 655 pages, RPCSVC_MAXPAGES); 656 /* use as many pages as possible */ 657 pages = RPCSVC_MAXPAGES; 658 } 659 660 for (needed = 0, i = 0; i < pages ; i++) { 661 if (!rqstp->rq_pages[i]) 662 needed++; 663 } 664 i = 0; 665 while (needed) { 667 for (; i < pages; i++) { 668 if (rqstp->rq_pages[i]) 669 continue; 670 page = list_first_entry_or_null(&list, struct page, lru); 671 if (likely(page)) { 672 list_del(&page->lru); 673 rqstp->rq_pages[i] = page; 674 continue; 675 } 676 set_current_state(TASK_INTERRUPTIBLE); 677 if (signalled() || kthread_should_stop()) { 678 set_current_state(TASK_RUNNING); 679 return -EINTR; 680 } 681 schedule_timeout(msecs_to_jiffies(500)); 682 break; 683 } 684 } 685 rqstp->rq_page_end = &rqstp->rq_pages[pages]; 686 rqstp->rq_pages[pages] = NULL; /* this might be seen in nfsd_splice_actor() */ 687 688 /* Make arg->head point to first page and arg->pages point to rest */ 689 arg = &rqstp->rq_arg; 690 arg->head[0].iov_base = page_address(rqstp->rq_pages[0]); 691 arg->head[0].iov_len = PAGE_SIZE; 692 arg->pages = rqstp->rq_pages + 1; 693 arg->page_base = 0; 694 /* save at least one page for response */ 695 arg->page_len = (pages-2)*PAGE_SIZE; 696 arg->len = (pages-1)*PAGE_SIZE; 697 arg->tail[0].iov_len = 0; 698 return 0; 699 } 700 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org