* [jpirko-mlxsw:combined_queue 23/32] net/ipv4/sysctl_net_ipv4.c:1599:2: error: call to undeclared function 'proc_fib_multipath_hash_set_seed'; ISO C99 and later do not support implicit function declarations
@ 2024-06-05 21:11 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-06-05 21:11 UTC (permalink / raw)
To: Petr Machata; +Cc: llvm, oe-kbuild-all
tree: https://github.com/jpirko/linux_mlxsw combined_queue
head: f100b130c290d783d1945ed8b6a6a0d6baec69b9
commit: ed9843cdfe0f43d76a86776b998a5f78ecedc3c0 [23/32] net: ipv4: Add a sysctl to set multipath hash seed
config: um-allmodconfig (https://download.01.org/0day-ci/archive/20240606/202406060550.nCypVOEx-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project d7d2d4f53fc79b4b58e8d8d08151b577c3699d4a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240606/202406060550.nCypVOEx-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202406060550.nCypVOEx-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from net/ipv4/sysctl_net_ipv4.c:13:
In file included from include/net/icmp.h:17:
In file included from include/linux/icmp.h:16:
In file included from include/linux/skbuff.h:17:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:8:
In file included from include/linux/cacheflush.h:5:
In file included from arch/um/include/asm/cacheflush.h:4:
In file included from arch/um/include/asm/tlbflush.h:9:
In file included from include/linux/mm.h:2253:
include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
514 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
In file included from net/ipv4/sysctl_net_ipv4.c:13:
In file included from include/net/icmp.h:17:
In file included from include/linux/icmp.h:16:
In file included from include/linux/skbuff.h:17:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
548 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from net/ipv4/sysctl_net_ipv4.c:13:
In file included from include/net/icmp.h:17:
In file included from include/linux/icmp.h:16:
In file included from include/linux/skbuff.h:17:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from net/ipv4/sysctl_net_ipv4.c:13:
In file included from include/net/icmp.h:17:
In file included from include/linux/icmp.h:16:
In file included from include/linux/skbuff.h:17:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
585 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
693 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
701 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
709 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
718 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
727 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
736 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
>> net/ipv4/sysctl_net_ipv4.c:1599:2: error: call to undeclared function 'proc_fib_multipath_hash_set_seed'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
1599 | proc_fib_multipath_hash_set_seed(net, 0);
| ^
>> net/ipv4/sysctl_net_ipv4.c:1636:12: error: use of undeclared identifier 'proc_fib_multipath_hash_rand_seed'
1636 | sizeof(proc_fib_multipath_hash_rand_seed));
| ^
net/ipv4/sysctl_net_ipv4.c:1635:20: error: use of undeclared identifier 'proc_fib_multipath_hash_rand_seed'
1635 | get_random_bytes(&proc_fib_multipath_hash_rand_seed,
| ^
13 warnings and 3 errors generated.
vim +/proc_fib_multipath_hash_set_seed +1599 net/ipv4/sysctl_net_ipv4.c
1561
1562 static __net_init int ipv4_sysctl_init_net(struct net *net)
1563 {
1564 size_t table_size = ARRAY_SIZE(ipv4_net_table);
1565 struct ctl_table *table;
1566
1567 table = ipv4_net_table;
1568 if (!net_eq(net, &init_net)) {
1569 int i;
1570
1571 table = kmemdup(table, sizeof(ipv4_net_table), GFP_KERNEL);
1572 if (!table)
1573 goto err_alloc;
1574
1575 for (i = 0; i < table_size; i++) {
1576 if (table[i].data) {
1577 /* Update the variables to point into
1578 * the current struct net
1579 */
1580 table[i].data += (void *)net - (void *)&init_net;
1581 } else {
1582 /* Entries without data pointer are global;
1583 * Make them read-only in non-init_net ns
1584 */
1585 table[i].mode &= ~0222;
1586 }
1587 }
1588 }
1589
1590 net->ipv4.ipv4_hdr = register_net_sysctl_sz(net, "net/ipv4", table,
1591 table_size);
1592 if (!net->ipv4.ipv4_hdr)
1593 goto err_reg;
1594
1595 net->ipv4.sysctl_local_reserved_ports = kzalloc(65536 / 8, GFP_KERNEL);
1596 if (!net->ipv4.sysctl_local_reserved_ports)
1597 goto err_ports;
1598
> 1599 proc_fib_multipath_hash_set_seed(net, 0);
1600
1601 return 0;
1602
1603 err_ports:
1604 unregister_net_sysctl_table(net->ipv4.ipv4_hdr);
1605 err_reg:
1606 if (!net_eq(net, &init_net))
1607 kfree(table);
1608 err_alloc:
1609 return -ENOMEM;
1610 }
1611
1612 static __net_exit void ipv4_sysctl_exit_net(struct net *net)
1613 {
1614 const struct ctl_table *table;
1615
1616 kfree(net->ipv4.sysctl_local_reserved_ports);
1617 table = net->ipv4.ipv4_hdr->ctl_table_arg;
1618 unregister_net_sysctl_table(net->ipv4.ipv4_hdr);
1619 kfree(table);
1620 }
1621
1622 static __net_initdata struct pernet_operations ipv4_sysctl_ops = {
1623 .init = ipv4_sysctl_init_net,
1624 .exit = ipv4_sysctl_exit_net,
1625 };
1626
1627 static __init int sysctl_ipv4_init(void)
1628 {
1629 struct ctl_table_header *hdr;
1630
1631 hdr = register_net_sysctl(&init_net, "net/ipv4", ipv4_table);
1632 if (!hdr)
1633 return -ENOMEM;
1634
1635 get_random_bytes(&proc_fib_multipath_hash_rand_seed,
> 1636 sizeof(proc_fib_multipath_hash_rand_seed));
1637
1638 if (register_pernet_subsys(&ipv4_sysctl_ops)) {
1639 unregister_net_sysctl_table(hdr);
1640 return -ENOMEM;
1641 }
1642
1643 return 0;
1644 }
1645
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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