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charset=us-ascii Content-Disposition: inline tree: https://github.com/isilence/linux zcrx/v9-wip head: 57539d7d0009112e33f2baf7a975d4d2ba2c50cf commit: 5a2e200685de32ee0c8931b0b094fcccd6c1754a [20/21] [NOT-FOR-UPSTREAM] veth: add support for io_uring zc rx config: powerpc-randconfig-003-20241211 (https://download.01.org/0day-ci/archive/20241211/202412112006.x91csM9j-lkp@intel.com/config) compiler: powerpc-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241211/202412112006.x91csM9j-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202412112006.x91csM9j-lkp@intel.com/ All errors (new ones prefixed by >>): drivers/net/veth.c: In function 'veth_iou_rcv_skb': >> drivers/net/veth.c:831:24: error: implicit declaration of function 'io_iov_get_page' [-Wimplicit-function-declaration] 831 | page = io_iov_get_page(netmem); | ^~~~~~~~~~~~~~~ >> drivers/net/veth.c:831:22: error: assignment to 'struct page *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 831 | page = io_iov_get_page(netmem); | ^ vim +/io_iov_get_page +831 drivers/net/veth.c 771 772 static noinline struct sk_buff *veth_iou_rcv_skb(struct veth_rq *rq, 773 struct sk_buff *skb) 774 { 775 struct sk_buff *nskb; 776 u32 size, len, off, max_head_size; 777 struct page *page; 778 int ret, i, head_off; 779 void *vaddr; 780 781 /* Testing only, randomly send normal pages to test copy fallback */ 782 if (ktime_get_ns() % 16 == 0) 783 return skb; 784 785 skb_prepare_for_gro(skb); 786 max_head_size = skb_headlen(skb); 787 788 rcu_read_lock(); 789 nskb = napi_alloc_skb(&rq->xdp_napi, max_head_size); 790 if (!nskb) 791 goto drop; 792 793 skb_copy_header(nskb, skb); 794 skb_mark_for_recycle(nskb); 795 796 size = max_head_size; 797 if (skb_copy_bits(skb, 0, nskb->data, size)) { 798 consume_skb(nskb); 799 goto drop; 800 } 801 skb_put(nskb, size); 802 head_off = skb_headroom(nskb) - skb_headroom(skb); 803 skb_headers_offset_update(nskb, head_off); 804 805 /* Allocate paged area of new skb */ 806 off = size; 807 len = skb->len - off; 808 809 for (i = 0; i < MAX_SKB_FRAGS && off < skb->len; i++) { 810 netmem_ref netmem; 811 unsigned frag_offset; 812 813 size = min_t(u32, len, PAGE_SIZE); 814 // netmem = page_pool_alloc_frag_netmem(rq->page_pool, 815 // &frag_offset, size, 816 // GFP_ATOMIC | __GFP_NOWARN); 817 818 printk("alloc frag %p size %i off %i\n", (void*)netmem, 819 (int)size, (int)frag_offset); 820 821 netmem = page_pool_alloc_netmem(rq->page_pool, GFP_ATOMIC | __GFP_NOWARN); 822 if (!netmem) { 823 consume_skb(nskb); 824 goto drop; 825 } 826 if (WARN_ON_ONCE(!netmem_is_net_iov(netmem))) { 827 consume_skb(nskb); 828 goto drop; 829 } 830 > 831 page = io_iov_get_page(netmem); 832 if (WARN_ON_ONCE(!page)) 833 goto drop; 834 835 skb_add_rx_frag_netmem(nskb, i, netmem, frag_offset, size, 836 PAGE_SIZE); 837 838 vaddr = kmap_atomic(page); 839 ret = skb_copy_bits(skb, off, vaddr + frag_offset, size); 840 kunmap_atomic(vaddr); 841 842 if (ret) { 843 consume_skb(nskb); 844 goto drop; 845 } 846 len -= size; 847 off += size; 848 } 849 rcu_read_unlock(); 850 851 consume_skb(skb); 852 skb = nskb; 853 return skb; 854 drop: 855 rcu_read_unlock(); 856 kfree_skb(skb); 857 return NULL; 858 } 859 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki