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* [ammarfaizi2-block:dhowells/linux-fs/rxrpc-ringless 4/9] net/rxrpc/local_object.c:172:24: warning: format specifies type 'unsigned short' but the argument has type 'int'
@ 2022-04-05 21:56 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-04-05 21:56 UTC (permalink / raw)
  To: David Howells; +Cc: llvm, kbuild-all, GNU/Weeb Mailing List, linux-kernel

tree:   https://github.com/ammarfaizi2/linux-block dhowells/linux-fs/rxrpc-ringless
head:   a4b855ffcf1d116e65df68fa6f5df04878bc0083
commit: 569092d7590362c7148ac768a923783886248c3b [4/9] rxrpc: Don't use a ring buffer for call Tx queue
config: riscv-randconfig-r042-20220405 (https://download.01.org/0day-ci/archive/20220406/[email protected]/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c4a1b07d0979e7ff20d7d541af666d822d66b566)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # https://github.com/ammarfaizi2/linux-block/commit/569092d7590362c7148ac768a923783886248c3b
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block dhowells/linux-fs/rxrpc-ringless
        git checkout 569092d7590362c7148ac768a923783886248c3b
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash net/rxrpc/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>

All warnings (new ones prefixed by >>):

   In file included from net/rxrpc/local_object.c:12:
   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:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
   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:13:
   In file included from arch/riscv/include/asm/io.h:136:
   include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __raw_readb(PCI_IOBASE + addr);
                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           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'
   #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
                                                     ^
   In file included from net/rxrpc/local_object.c:12:
   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:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
   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:13:
   In file included from arch/riscv/include/asm/io.h:136:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           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'
   #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
                                                     ^
   In file included from net/rxrpc/local_object.c:12:
   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:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
   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:13:
   In file included from arch/riscv/include/asm/io.h:136:
   include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writeb(value, PCI_IOBASE + addr);
                               ~~~~~~~~~~ ^
   include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:1024:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
                                                     ~~~~~~~~~~ ^
>> net/rxrpc/local_object.c:172:24: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat]
                                     "krxrpctxd/%hu", ntohs(udp_conf.local_udp_port));
                                                ~~~   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                                %d
   include/linux/kthread.h:54:48: note: expanded from macro 'kthread_run'
                   = kthread_create(threadfn, data, namefmt, ## __VA_ARGS__); \
                                                    ~~~~~~~     ^~~~~~~~~~~
   include/linux/kthread.h:28:66: note: expanded from macro 'kthread_create'
           kthread_create_on_node(threadfn, data, NUMA_NO_NODE, namefmt, ##arg)
                                                                ~~~~~~~    ^~~
   include/linux/byteorder/generic.h:142:18: note: expanded from macro 'ntohs'
   #define ntohs(x) ___ntohs(x)
                    ^~~~~~~~~~~
   include/linux/byteorder/generic.h:137:21: note: expanded from macro '___ntohs'
   #define ___ntohs(x) __be16_to_cpu(x)
                       ^~~~~~~~~~~~~~~~
   include/uapi/linux/byteorder/little_endian.h:43:26: note: expanded from macro '__be16_to_cpu'
   #define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x))
                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/uapi/linux/swab.h:105:2: note: expanded from macro '__swab16'
           (__builtin_constant_p((__u16)(x)) ?     \
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   net/rxrpc/local_object.c:246:23: warning: unused variable 'c' [-Wunused-variable]
                   struct rxrpc_local *c = hlist_entry(cursor, struct rxrpc_local, link);
                                       ^
   9 warnings generated.

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for DRM_GEM_SHMEM_HELPER
   Depends on HAS_IOMEM && DRM && MMU
   Selected by
   - DRM_SSD130X && HAS_IOMEM && DRM


vim +172 net/rxrpc/local_object.c

   105	
   106	/*
   107	 * create the local socket
   108	 * - must be called with rxrpc_local_mutex locked
   109	 */
   110	static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net)
   111	{
   112		struct udp_tunnel_sock_cfg tuncfg = {NULL};
   113		struct sockaddr_rxrpc *srx = &local->srx;
   114		struct udp_port_cfg udp_conf = {0};
   115		struct task_struct *transmitter;
   116		struct sock *usk;
   117		int ret;
   118	
   119		_enter("%p{%d,%d}",
   120		       local, srx->transport_type, srx->transport.family);
   121	
   122		udp_conf.family = srx->transport.family;
   123		if (udp_conf.family == AF_INET) {
   124			udp_conf.local_ip = srx->transport.sin.sin_addr;
   125			udp_conf.local_udp_port = srx->transport.sin.sin_port;
   126	#if IS_ENABLED(CONFIG_AF_RXRPC_IPV6)
   127		} else {
   128			udp_conf.local_ip6 = srx->transport.sin6.sin6_addr;
   129			udp_conf.local_udp_port = srx->transport.sin6.sin6_port;
   130	#endif
   131		}
   132		ret = udp_sock_create(net, &udp_conf, &local->socket);
   133		if (ret < 0) {
   134			_leave(" = %d [socket]", ret);
   135			return ret;
   136		}
   137	
   138		tuncfg.encap_type = UDP_ENCAP_RXRPC;
   139		tuncfg.encap_rcv = rxrpc_input_packet;
   140		tuncfg.sk_user_data = local;
   141		setup_udp_tunnel_sock(net, local->socket, &tuncfg);
   142	
   143		/* set the socket up */
   144		usk = local->socket->sk;
   145		usk->sk_error_report = rxrpc_error_report;
   146	
   147		switch (srx->transport.family) {
   148		case AF_INET6:
   149			/* we want to receive ICMPv6 errors */
   150			ip6_sock_set_recverr(usk);
   151	
   152			/* Fall through and set IPv4 options too otherwise we don't get
   153			 * errors from IPv4 packets sent through the IPv6 socket.
   154			 */
   155			fallthrough;
   156		case AF_INET:
   157			/* we want to receive ICMP errors */
   158			ip_sock_set_recverr(usk);
   159	
   160			/* we want to set the don't fragment bit */
   161			ip_sock_set_mtu_discover(usk, IP_PMTUDISC_DO);
   162	
   163			/* We want receive timestamps. */
   164			sock_enable_timestamps(usk);
   165			break;
   166	
   167		default:
   168			BUG();
   169		}
   170	
   171		transmitter = kthread_run(rxrpc_transmitter, local,
 > 172					  "krxrpctxd/%hu", ntohs(udp_conf.local_udp_port));
   173		if (IS_ERR(transmitter)) {
   174			ret = PTR_ERR(transmitter);
   175			goto error_sock;
   176		}
   177	
   178		local->transmitter = transmitter;
   179		_leave(" = 0");
   180		return 0;
   181	
   182	error_sock:
   183		kernel_sock_shutdown(local->socket, SHUT_RDWR);
   184		local->socket->sk->sk_user_data = NULL;
   185		sock_release(local->socket);
   186		local->socket = NULL;
   187		return ret;
   188	}
   189	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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2022-04-05 21:56 [ammarfaizi2-block:dhowells/linux-fs/rxrpc-ringless 4/9] net/rxrpc/local_object.c:172:24: warning: format specifies type 'unsigned short' but the argument has type 'int' kernel test robot

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