CC: [email protected] CC: [email protected] TO: Ong Boon Leong <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 136057256686de39cc3a07c2e39ef6bc43003ff6 commit: be8b38a722e68ffa069b7dfa887369c33d6ea886 net: stmmac: Add support for XDP_TX action date: 8 months ago :::::: branch date: 16 hours ago :::::: commit date: 8 months ago config: x86_64-randconfig-m031-20211117 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 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]> smatch warnings: drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:4388 stmmac_xdp_run_prog() error: (-2147483647) too low for ERR_PTR vim +4388 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c be8b38a722e68f Ong Boon Leong 2021-04-01 4351 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4352 static struct sk_buff *stmmac_xdp_run_prog(struct stmmac_priv *priv, 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4353 struct xdp_buff *xdp) 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4354 { 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4355 struct bpf_prog *prog; 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4356 int res; 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4357 u32 act; 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4358 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4359 rcu_read_lock(); 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4360 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4361 prog = READ_ONCE(priv->xdp_prog); 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4362 if (!prog) { 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4363 res = STMMAC_XDP_PASS; 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4364 goto unlock; 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4365 } 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4366 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4367 act = bpf_prog_run_xdp(prog, xdp); 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4368 switch (act) { 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4369 case XDP_PASS: 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4370 res = STMMAC_XDP_PASS; 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4371 break; be8b38a722e68f Ong Boon Leong 2021-04-01 4372 case XDP_TX: be8b38a722e68f Ong Boon Leong 2021-04-01 4373 res = stmmac_xdp_xmit_back(priv, xdp); be8b38a722e68f Ong Boon Leong 2021-04-01 4374 break; 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4375 default: 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4376 bpf_warn_invalid_xdp_action(act); 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4377 fallthrough; 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4378 case XDP_ABORTED: 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4379 trace_xdp_exception(priv->dev, prog, act); 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4380 fallthrough; 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4381 case XDP_DROP: 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4382 res = STMMAC_XDP_CONSUMED; 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4383 break; 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4384 } 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4385 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4386 unlock: 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4387 rcu_read_unlock(); 5fabb01207a2d3 Ong Boon Leong 2021-04-01 @4388 return ERR_PTR(-res); 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4389 } 5fabb01207a2d3 Ong Boon Leong 2021-04-01 4390 :::::: The code at line 4388 was first introduced by commit :::::: 5fabb01207a2d3439a6abe1d08640de9c942945f net: stmmac: Add initial XDP support :::::: TO: Ong Boon Leong <[email protected]> :::::: CC: David S. Miller <[email protected]> --- 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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