CC: [email protected] CC: [email protected] TO: Sven Auhagen <[email protected]> CC: Tony Nguyen <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 29c395c77a9a514c5857c45ceae2665e9bd99ac7 commit: 9cbc948b5a20c9c054d9631099c0426c16da546b igb: add XDP support date: 5 months ago :::::: branch date: 7 hours ago :::::: commit date: 5 months ago config: i386-randconfig-m021-20210225 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> New smatch warnings: drivers/net/ethernet/intel/igb/igb_main.c:8425 igb_run_xdp() error: (-2147483647) too low for ERR_PTR Old smatch warnings: drivers/net/ethernet/intel/igb/igb_main.c:8755 igb_clean_rx_irq() error: 'skb' dereferencing possible ERR_PTR() vim +8425 drivers/net/ethernet/intel/igb/igb_main.c b1bb2eb0a0deb0 Alexander Duyck 2017-02-06 8382 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8383 static struct sk_buff *igb_run_xdp(struct igb_adapter *adapter, 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8384 struct igb_ring *rx_ring, 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8385 struct xdp_buff *xdp) 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8386 { 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8387 int err, result = IGB_XDP_PASS; 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8388 struct bpf_prog *xdp_prog; 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8389 u32 act; 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8390 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8391 rcu_read_lock(); 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8392 xdp_prog = READ_ONCE(rx_ring->xdp_prog); 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8393 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8394 if (!xdp_prog) 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8395 goto xdp_out; 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8396 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8397 prefetchw(xdp->data_hard_start); /* xdp_frame write */ 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8398 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8399 act = bpf_prog_run_xdp(xdp_prog, xdp); 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8400 switch (act) { 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8401 case XDP_PASS: 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8402 break; 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8403 case XDP_TX: 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8404 result = igb_xdp_xmit_back(adapter, xdp); 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8405 break; 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8406 case XDP_REDIRECT: 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8407 err = xdp_do_redirect(adapter->netdev, xdp, xdp_prog); 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8408 if (!err) 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8409 result = IGB_XDP_REDIR; 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8410 else 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8411 result = IGB_XDP_CONSUMED; 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8412 break; 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8413 default: 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8414 bpf_warn_invalid_xdp_action(act); 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8415 fallthrough; 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8416 case XDP_ABORTED: 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8417 trace_xdp_exception(rx_ring->netdev, xdp_prog, act); 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8418 fallthrough; 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8419 case XDP_DROP: 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8420 result = IGB_XDP_CONSUMED; 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8421 break; 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8422 } 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8423 xdp_out: 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8424 rcu_read_unlock(); 9cbc948b5a20c9 Sven Auhagen 2020-09-02 @8425 return ERR_PTR(-result); 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8426 } 9cbc948b5a20c9 Sven Auhagen 2020-09-02 8427 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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