Hi Richard, I love your patch! Perhaps something to improve: [auto build test WARNING on net-next/master] url: https://github.com/0day-ci/linux/commits/Richard-Cochran/Peer-to-Peer-One-Step-time-stamping/20190531-200348 reproduce: # apt-get install sparse # sparse version: v0.6.1-rc1-7-g2b96cd8-dirty make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/ptp/ptp_ines.c:490:13: sparse: sparse: restricted __be64 degrades to integer >> drivers/ptp/ptp_ines.c:495:28: sparse: sparse: cast to restricted __be16 >> drivers/ptp/ptp_ines.c:495:28: sparse: sparse: cast to restricted __be16 >> drivers/ptp/ptp_ines.c:495:28: sparse: sparse: cast to restricted __be16 >> drivers/ptp/ptp_ines.c:495:28: sparse: sparse: cast to restricted __be16 drivers/ptp/ptp_ines.c:496:17: sparse: sparse: cast to restricted __be16 drivers/ptp/ptp_ines.c:496:17: sparse: sparse: cast to restricted __be16 drivers/ptp/ptp_ines.c:496:17: sparse: sparse: cast to restricted __be16 drivers/ptp/ptp_ines.c:496:17: sparse: sparse: cast to restricted __be16 drivers/ptp/ptp_ines.c:500:26: sparse: sparse: cast to restricted __be16 drivers/ptp/ptp_ines.c:500:26: sparse: sparse: cast to restricted __be16 drivers/ptp/ptp_ines.c:500:26: sparse: sparse: cast to restricted __be16 drivers/ptp/ptp_ines.c:500:26: sparse: sparse: cast to restricted __be16 drivers/ptp/ptp_ines.c:501:17: sparse: sparse: cast to restricted __be16 drivers/ptp/ptp_ines.c:501:17: sparse: sparse: cast to restricted __be16 drivers/ptp/ptp_ines.c:501:17: sparse: sparse: cast to restricted __be16 drivers/ptp/ptp_ines.c:501:17: sparse: sparse: cast to restricted __be16 >> drivers/ptp/ptp_ines.c:543:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ >> drivers/ptp/ptp_ines.c:543:28: sparse: expected void const volatile [noderef] <asn:2> *addr >> drivers/ptp/ptp_ines.c:543:28: sparse: got unsigned int * drivers/ptp/ptp_ines.c:547:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:547:30: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:547:30: sparse: got unsigned int * drivers/ptp/ptp_ines.c:557:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:557:31: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:557:31: sparse: got unsigned int * drivers/ptp/ptp_ines.c:561:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:561:31: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:561:31: sparse: got unsigned int * drivers/ptp/ptp_ines.c:562:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:562:31: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:562:31: sparse: got unsigned int * drivers/ptp/ptp_ines.c:579:16: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:579:16: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:579:16: sparse: got unsigned int * drivers/ptp/ptp_ines.c:583:24: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:583:24: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:583:24: sparse: got unsigned int * drivers/ptp/ptp_ines.c:626:16: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:626:16: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:626:16: sparse: got unsigned int * drivers/ptp/ptp_ines.c:630:24: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:630:24: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:630:24: sparse: got unsigned int * >> drivers/ptp/ptp_ines.c:208:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct ines_global_registers *regs @@ got ines_global_registers *regs @@ >> drivers/ptp/ptp_ines.c:208:21: sparse: expected struct ines_global_registers *regs >> drivers/ptp/ptp_ines.c:208:21: sparse: got void [noderef] <asn:2> *base >> drivers/ptp/ptp_ines.c:225:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ >> drivers/ptp/ptp_ines.c:225:9: sparse: expected void volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:225:9: sparse: got unsigned int * drivers/ptp/ptp_ines.c:226:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:226:9: sparse: expected void volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:226:9: sparse: got unsigned int * drivers/ptp/ptp_ines.c:228:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:228:9: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:228:9: sparse: got unsigned int * drivers/ptp/ptp_ines.c:229:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:229:9: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:229:9: sparse: got unsigned int * drivers/ptp/ptp_ines.c:230:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:230:9: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:230:9: sparse: got unsigned int * drivers/ptp/ptp_ines.c:231:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:231:9: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:231:9: sparse: got unsigned int * drivers/ptp/ptp_ines.c:235:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:235:17: sparse: expected void volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:235:17: sparse: got unsigned int * drivers/ptp/ptp_ines.c:313:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:313:28: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:313:28: sparse: got unsigned int * drivers/ptp/ptp_ines.c:318:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:318:30: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:318:30: sparse: got unsigned int * drivers/ptp/ptp_ines.c:326:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:326:30: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:326:30: sparse: got unsigned int * drivers/ptp/ptp_ines.c:330:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:330:30: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:330:30: sparse: got unsigned int * drivers/ptp/ptp_ines.c:331:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:331:30: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:331:30: sparse: got unsigned int * drivers/ptp/ptp_ines.c:401:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:401:21: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:401:21: sparse: got unsigned int * drivers/ptp/ptp_ines.c:405:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:405:9: sparse: expected void volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:405:9: sparse: got unsigned int * drivers/ptp/ptp_ines.c:406:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:406:9: sparse: expected void volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:406:9: sparse: got unsigned int * drivers/ptp/ptp_ines.c:407:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:407:9: sparse: expected void volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:407:9: sparse: got unsigned int * drivers/ptp/ptp_ines.c:440:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:440:21: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:440:21: sparse: got unsigned int * drivers/ptp/ptp_ines.c:444:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:444:9: sparse: expected void volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:444:9: sparse: got unsigned int * drivers/ptp/ptp_ines.c:643:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *addr @@ got ref] <asn:2> *addr @@ drivers/ptp/ptp_ines.c:643:21: sparse: expected void const volatile [noderef] <asn:2> *addr drivers/ptp/ptp_ines.c:643:21: sparse: got unsigned int * >> drivers/ptp/ptp_ines.c:756:24: sparse: sparse: symbol 'ines_ptp_probe_channel' was not declared. Should it be static? >> drivers/ptp/ptp_ines.c:785:30: sparse: sparse: symbol 'ines_ctrl' was not declared. Should it be static? Please review and possibly fold the followup patch. vim +490 drivers/ptp/ptp_ines.c 416 417 static void ines_link_state(struct mii_timestamper *mii_ts, 418 struct phy_device *phydev) 419 { 420 struct ines_port *port = container_of(mii_ts, struct ines_port, mii_ts); 421 u32 port_conf, speed_conf; 422 unsigned long flags; 423 424 switch (phydev->speed) { 425 case SPEED_10: 426 speed_conf = PHY_SPEED_10 << PHY_SPEED_SHIFT; 427 break; 428 case SPEED_100: 429 speed_conf = PHY_SPEED_100 << PHY_SPEED_SHIFT; 430 break; 431 case SPEED_1000: 432 speed_conf = PHY_SPEED_1000 << PHY_SPEED_SHIFT; 433 break; 434 default: 435 pr_err("bad speed: %d\n", phydev->speed); 436 return; 437 } 438 spin_lock_irqsave(&port->lock, flags); 439 > 440 port_conf = ines_read32(port, port_conf); 441 port_conf &= ~(0x3 << PHY_SPEED_SHIFT); 442 port_conf |= speed_conf; 443 444 ines_write32(port, port_conf, port_conf); 445 446 spin_unlock_irqrestore(&port->lock, flags); 447 } 448 449 static bool ines_match(struct sk_buff *skb, unsigned int ptp_class, 450 struct ines_timestamp *ts) 451 { 452 u8 *msgtype, *data = skb_mac_header(skb); 453 unsigned int offset = 0; 454 u16 *portn, *seqid; 455 u64 *clkid; 456 457 if (unlikely(ptp_class & PTP_CLASS_V1)) 458 return false; 459 460 if (ptp_class & PTP_CLASS_VLAN) 461 offset += VLAN_HLEN; 462 463 switch (ptp_class & PTP_CLASS_PMASK) { 464 case PTP_CLASS_IPV4: 465 offset += ETH_HLEN + IPV4_HLEN(data + offset) + UDP_HLEN; 466 break; 467 case PTP_CLASS_IPV6: 468 offset += ETH_HLEN + IP6_HLEN + UDP_HLEN; 469 break; 470 case PTP_CLASS_L2: 471 offset += ETH_HLEN; 472 break; 473 default: 474 return false; 475 } 476 477 if (skb->len + ETH_HLEN < offset + OFF_PTP_SEQUENCE_ID + sizeof(*seqid)) 478 return false; 479 480 msgtype = data + offset; 481 clkid = (u64 *)(data + offset + OFF_PTP_CLOCK_ID); 482 portn = (u16 *)(data + offset + OFF_PTP_PORT_NUM); 483 seqid = (u16 *)(data + offset + OFF_PTP_SEQUENCE_ID); 484 485 if (tag_to_msgtype(ts->tag & 0x7) != (*msgtype & 0xf)) { 486 pr_debug("msgtype mismatch ts %hhu != skb %hhu\n", 487 tag_to_msgtype(ts->tag & 0x7), *msgtype & 0xf); 488 return false; 489 } > 490 if (cpu_to_be64(ts->clkid) != *clkid) { 491 pr_debug("clkid mismatch ts %llx != skb %llx\n", 492 cpu_to_be64(ts->clkid), *clkid); 493 return false; 494 } > 495 if (ts->portnum != ntohs(*portn)) { > 496 pr_debug("portn mismatch ts %hu != skb %hu\n", 497 ts->portnum, ntohs(*portn)); 498 return false; 499 } > 500 if (ts->seqid != ntohs(*seqid)) { 501 pr_debug("seqid mismatch ts %hu != skb %hu\n", 502 ts->seqid, ntohs(*seqid)); 503 return false; 504 } 505 506 return true; 507 } 508 509 static bool ines_rxtstamp(struct mii_timestamper *mii_ts, 510 struct sk_buff *skb, int type) 511 { 512 struct ines_port *port = container_of(mii_ts, struct ines_port, mii_ts); 513 struct skb_shared_hwtstamps *ssh; 514 u64 ns; 515 516 if (!port->rxts_enabled) 517 return false; 518 519 ns = ines_find_rxts(port, skb, type); 520 if (!ns) 521 return false; 522 523 ssh = skb_hwtstamps(skb); 524 ssh->hwtstamp = ns_to_ktime(ns); 525 netif_rx(skb); 526 527 return true; 528 } 529 530 static int ines_rxfifo_read(struct ines_port *port) 531 { 532 u32 data_rd_pos, buf_stat, mask, ts_stat_rx; 533 struct ines_timestamp *ts; 534 unsigned int i; 535 536 mask = RX_FIFO_NE_1 << port->index; 537 538 for (i = 0; i < INES_FIFO_DEPTH; i++) { 539 if (list_empty(&port->pool)) { 540 pr_err("event pool is empty\n"); 541 return -1; 542 } > 543 buf_stat = ines_read32(port->clock, buf_stat); 544 if (!(buf_stat & mask)) 545 break; 546 547 ts_stat_rx = ines_read32(port, ts_stat_rx); 548 data_rd_pos = (ts_stat_rx >> DATA_READ_POS_SHIFT) & 549 DATA_READ_POS_MASK; 550 if (data_rd_pos) { 551 pr_err("unexpected Rx read pos %u\n", data_rd_pos); 552 break; 553 } 554 555 ts = list_first_entry(&port->pool, struct ines_timestamp, list); 556 ts->tmo = jiffies + HZ; 557 ts->tag = ines_read32(port, ts_rx); 558 ts->sec = ines_rxts64(port, 3); 559 ts->nsec = ines_rxts64(port, 2); 560 ts->clkid = ines_rxts64(port, 4); 561 ts->portnum = ines_read32(port, ts_rx); 562 ts->seqid = ines_read32(port, ts_rx); 563 564 ines_dump_ts("Rx", ts); 565 566 list_del_init(&ts->list); 567 list_add_tail(&ts->list, &port->events); 568 } 569 570 return 0; 571 } 572 573 static u64 ines_rxts64(struct ines_port *port, unsigned int words) 574 { 575 unsigned int i; 576 u64 result; 577 u16 word; 578 579 word = ines_read32(port, ts_rx); 580 result = word; 581 words--; 582 for (i = 0; i < words; i++) { > 583 word = ines_read32(port, ts_rx); 584 result <<= 16; 585 result |= word; 586 } 587 return result; 588 } 589 590 static bool ines_timestamp_expired(struct ines_timestamp *ts) 591 { 592 return time_after(jiffies, ts->tmo); 593 } 594 595 static int ines_ts_info(struct mii_timestamper *mii_ts, 596 struct ethtool_ts_info *info) 597 { 598 info->so_timestamping = 599 SOF_TIMESTAMPING_TX_HARDWARE | 600 SOF_TIMESTAMPING_TX_SOFTWARE | 601 SOF_TIMESTAMPING_RX_HARDWARE | 602 SOF_TIMESTAMPING_RX_SOFTWARE | 603 SOF_TIMESTAMPING_SOFTWARE | 604 SOF_TIMESTAMPING_RAW_HARDWARE; 605 606 info->phc_index = -1; 607 608 info->tx_types = 609 (1 << HWTSTAMP_TX_OFF) | 610 (1 << HWTSTAMP_TX_ON) | 611 (1 << HWTSTAMP_TX_ONESTEP_P2P); 612 613 info->rx_filters = 614 (1 << HWTSTAMP_FILTER_NONE) | 615 (1 << HWTSTAMP_FILTER_PTP_V2_EVENT); 616 617 return 0; 618 } 619 620 static u64 ines_txts64(struct ines_port *port, unsigned int words) 621 { 622 unsigned int i; 623 u64 result; 624 u16 word; 625 > 626 word = ines_read32(port, ts_tx); 627 result = word; 628 words--; 629 for (i = 0; i < words; i++) { 630 word = ines_read32(port, ts_tx); 631 result <<= 16; 632 result |= word; 633 } 634 return result; 635 } 636 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
