Hi Eric, I love your patch! Yet something to improve: [auto build test ERROR on net-next/master] url: https://github.com/0day-ci/linux/commits/Eric-Dumazet/net-remove-unsafe-skb_insert/20181126-061342 config: x86_64-randconfig-x009-201847 (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 errors (new ones prefixed by >>): drivers/infiniband//hw/nes/nes_mgt.c: In function 'queue_fpdus': >> drivers/infiniband//hw/nes/nes_mgt.c:561:29: error: passing argument 3 of '__skb_insert' from incompatible pointer type [-Werror=incompatible-pointer-types] __skb_insert(tmpskb, skb, &nesqp->pau_list); ^ In file included from drivers/infiniband//hw/nes/nes_mgt.c:34:0: include/linux/skbuff.h:1752:20: note: expected 'struct sk_buff *' but argument is of type 'struct sk_buff_head *' static inline void __skb_insert(struct sk_buff *newsk, ^~~~~~~~~~~~ >> drivers/infiniband//hw/nes/nes_mgt.c:561:3: error: too few arguments to function '__skb_insert' __skb_insert(tmpskb, skb, &nesqp->pau_list); ^~~~~~~~~~~~ In file included from drivers/infiniband//hw/nes/nes_mgt.c:34:0: include/linux/skbuff.h:1752:20: note: declared here static inline void __skb_insert(struct sk_buff *newsk, ^~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/__skb_insert +561 drivers/infiniband//hw/nes/nes_mgt.c 503 504 /** 505 * queue_fpdus - Handle fpdu's that hw passed up to sw 506 */ 507 static void queue_fpdus(struct sk_buff *skb, struct nes_vnic *nesvnic, struct nes_qp *nesqp) 508 { 509 struct sk_buff *tmpskb; 510 struct nes_rskb_cb *cb; 511 struct iphdr *iph; 512 struct tcphdr *tcph; 513 unsigned char *tcph_end; 514 u32 rcv_nxt; 515 u32 rcv_wnd; 516 u32 seqnum; 517 u32 len; 518 bool process_it = false; 519 unsigned long flags; 520 521 /* Move data ptr to after tcp header */ 522 iph = (struct iphdr *)skb->data; 523 tcph = (struct tcphdr *)(((char *)iph) + (4 * iph->ihl)); 524 seqnum = be32_to_cpu(tcph->seq); 525 tcph_end = (((char *)tcph) + (4 * tcph->doff)); 526 527 len = be16_to_cpu(iph->tot_len); 528 if (skb->len > len) 529 skb_trim(skb, len); 530 skb_pull(skb, tcph_end - skb->data); 531 532 /* Initialize tracking values */ 533 cb = (struct nes_rskb_cb *)&skb->cb[0]; 534 cb->seqnum = seqnum; 535 536 /* Make sure data is in the receive window */ 537 rcv_nxt = nesqp->pau_rcv_nxt; 538 rcv_wnd = le32_to_cpu(nesqp->nesqp_context->rcv_wnd); 539 if (!between(seqnum, rcv_nxt, (rcv_nxt + rcv_wnd))) { 540 nes_mgt_free_skb(nesvnic->nesdev, skb, PCI_DMA_TODEVICE); 541 nes_rem_ref_cm_node(nesqp->cm_node); 542 return; 543 } 544 545 spin_lock_irqsave(&nesqp->pau_lock, flags); 546 547 if (nesqp->pau_busy) 548 nesqp->pau_pending = 1; 549 else 550 nesqp->pau_busy = 1; 551 552 /* Queue skb by sequence number */ 553 if (skb_queue_len(&nesqp->pau_list) == 0) { 554 __skb_queue_head(&nesqp->pau_list, skb); 555 } else { 556 skb_queue_walk(&nesqp->pau_list, tmpskb) { 557 cb = (struct nes_rskb_cb *)&tmpskb->cb[0]; 558 if (before(seqnum, cb->seqnum)) 559 break; 560 } > 561 __skb_insert(tmpskb, skb, &nesqp->pau_list); 562 } 563 if (nesqp->pau_state == PAU_READY) 564 process_it = true; 565 spin_unlock_irqrestore(&nesqp->pau_lock, flags); 566 567 if (process_it) 568 process_fpdus(nesvnic, nesqp); 569 570 return; 571 } 572 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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