oe-kbuild-all.lists.linux.dev archive mirror
 help / color / mirror / Atom feed
* Re: [PATCH v2 net] net: Fix sk->sk_stamp race in sock_recv_cmsgs().
       [not found] <20230508165815.45602-1-kuniyu@amazon.com>
@ 2023-05-09  7:38 ` kernel test robot
  2023-05-09  8:12 ` kernel test robot
  1 sibling, 0 replies; 2+ messages in thread
From: kernel test robot @ 2023-05-09  7:38 UTC (permalink / raw)
  To: Kuniyuki Iwashima, David S. Miller, Eric Dumazet, Jakub Kicinski,
	Paolo Abeni
  Cc: oe-kbuild-all, netdev, Kuniyuki Iwashima, syzbot

Hi Kuniyuki,

kernel test robot noticed the following build warnings:

[auto build test WARNING on net/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Kuniyuki-Iwashima/net-Fix-sk-sk_stamp-race-in-sock_recv_cmsgs/20230509-005901
base:   net/main
patch link:    https://lore.kernel.org/r/20230508165815.45602-1-kuniyu%40amazon.com
patch subject: [PATCH v2 net] net: Fix sk->sk_stamp race in sock_recv_cmsgs().
config: alpha-randconfig-s033-20230507 (https://download.01.org/0day-ci/archive/20230509/202305091558.VRASfSNN-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://github.com/intel-lab-lkp/linux/commit/7755d082501de4c89033aed3be404114fcba1c44
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Kuniyuki-Iwashima/net-Fix-sk-sk_stamp-race-in-sock_recv_cmsgs/20230509-005901
        git checkout 7755d082501de4c89033aed3be404114fcba1c44
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=alpha olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=alpha SHELL=/bin/bash net/key/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305091558.VRASfSNN-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   net/key/af_key.c: note: in included file (through arch/alpha/include/asm/cmpxchg.h, arch/alpha/include/asm/atomic.h, include/linux/atomic.h, ...):
>> arch/alpha/include/asm/xchg.h:234:32: sparse: sparse: cast truncates bits from constant value (ffffffffc4653600 becomes 0)
   arch/alpha/include/asm/xchg.h:236:32: sparse: sparse: cast truncates bits from constant value (ffffffffc4653600 becomes 3600)

vim +234 arch/alpha/include/asm/xchg.h

a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  227  
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  228  static __always_inline unsigned long
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  229  ____cmpxchg(, volatile void *ptr, unsigned long old, unsigned long new,
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  230  	      int size)
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  231  {
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  232  	switch (size) {
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  233  		case 1:
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31 @234  			return ____cmpxchg(_u8, ptr, old, new);
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  235  		case 2:
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  236  			return ____cmpxchg(_u16, ptr, old, new);
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  237  		case 4:
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  238  			return ____cmpxchg(_u32, ptr, old, new);
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  239  		case 8:
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  240  			return ____cmpxchg(_u64, ptr, old, new);
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  241  	}
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  242  	__cmpxchg_called_with_bad_pointer();
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  243  	return old;
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  244  }
a6209d6d71f2ab Ivan Kokshaysky 2009-03-31  245  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

^ permalink raw reply	[flat|nested] 2+ messages in thread
* Re: [PATCH v2 net] net: Fix sk->sk_stamp race in sock_recv_cmsgs().
       [not found] <20230508165815.45602-1-kuniyu@amazon.com>
  2023-05-09  7:38 ` [PATCH v2 net] net: Fix sk->sk_stamp race in sock_recv_cmsgs() kernel test robot
@ 2023-05-09  8:12 ` kernel test robot
  1 sibling, 0 replies; 2+ messages in thread
From: kernel test robot @ 2023-05-09  8:12 UTC (permalink / raw)
  To: Kuniyuki Iwashima, David S. Miller, Eric Dumazet, Jakub Kicinski,
	Paolo Abeni
  Cc: oe-kbuild-all, netdev, Kuniyuki Iwashima, syzbot

Hi Kuniyuki,

kernel test robot noticed the following build warnings:

[auto build test WARNING on net/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Kuniyuki-Iwashima/net-Fix-sk-sk_stamp-race-in-sock_recv_cmsgs/20230509-005901
base:   net/main
patch link:    https://lore.kernel.org/r/20230508165815.45602-1-kuniyu%40amazon.com
patch subject: [PATCH v2 net] net: Fix sk->sk_stamp race in sock_recv_cmsgs().
config: arm64-randconfig-s032-20230507 (https://download.01.org/0day-ci/archive/20230509/202305091519.TLuWISjA-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://github.com/intel-lab-lkp/linux/commit/7755d082501de4c89033aed3be404114fcba1c44
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Kuniyuki-Iwashima/net-Fix-sk-sk_stamp-race-in-sock_recv_cmsgs/20230509-005901
        git checkout 7755d082501de4c89033aed3be404114fcba1c44
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/firmware/tegra/ net/mctp/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305091519.TLuWISjA-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   net/mctp/af_mctp.c: note: in included file (through arch/arm64/include/asm/atomic.h, include/linux/atomic.h, include/asm-generic/bitops/atomic.h, ...):
>> arch/arm64/include/asm/cmpxchg.h:174:1: sparse: sparse: cast truncates bits from constant value (ffffffffc4653600 becomes 0)
   arch/arm64/include/asm/cmpxchg.h:174:1: sparse: sparse: cast truncates bits from constant value (ffffffffc4653600 becomes 3600)

vim +174 arch/arm64/include/asm/cmpxchg.h

10b663aef1c247 Catalin Marinas 2012-03-05  170  
305d454aaa292b Will Deacon     2015-10-08  171  __CMPXCHG_GEN()
305d454aaa292b Will Deacon     2015-10-08  172  __CMPXCHG_GEN(_acq)
305d454aaa292b Will Deacon     2015-10-08  173  __CMPXCHG_GEN(_rel)
305d454aaa292b Will Deacon     2015-10-08 @174  __CMPXCHG_GEN(_mb)
10b663aef1c247 Catalin Marinas 2012-03-05  175  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

^ permalink raw reply	[flat|nested] 2+ messages in thread
end of thread, other threads:[~2023-05-09  8:12 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
     [not found] <20230508165815.45602-1-kuniyu@amazon.com>
2023-05-09  7:38 ` [PATCH v2 net] net: Fix sk->sk_stamp race in sock_recv_cmsgs() kernel test robot
2023-05-09  8:12 ` kernel test robot

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).