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From: kernel test robot <lkp@intel.com>
To: Kuniyuki Iwashima <kuniyu@google.com>,
	David Ahern <dsahern@kernel.org>,
	"David S . Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Cc: oe-kbuild-all@lists.linux.dev,
	Kui-Feng Lee <thinker.li@gmail.com>,
	Xin Long <lucien.xin@gmail.com>, Simon Horman <horms@kernel.org>,
	Kuniyuki Iwashima <kuniyu@google.com>,
	netdev@vger.kernel.org
Subject: Re: [PATCH v1 net 2/2] ipv6: Don't remove permanent routes with exceptions from tb6_gc_hlist.
Date: Sat, 7 Mar 2026 19:58:49 +0800	[thread overview]
Message-ID: <202603071918.kDLKvFsA-lkp@intel.com> (raw)
In-Reply-To: <20260307024709.718395-3-kuniyu@google.com>

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/ipv6-Remove-permanent-routes-from-tb6_gc_hlist-when-all-exceptions-expire/20260307-104803
base:   net/main
patch link:    https://lore.kernel.org/r/20260307024709.718395-3-kuniyu%40google.com
patch subject: [PATCH v1 net 2/2] ipv6: Don't remove permanent routes with exceptions from tb6_gc_hlist.
config: openrisc-defconfig (https://download.01.org/0day-ci/archive/20260307/202603071918.kDLKvFsA-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260307/202603071918.kDLKvFsA-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/202603071918.kDLKvFsA-lkp@intel.com/

All warnings (new ones prefixed by >>):

      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |         ^~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:28: note: in expansion of macro '__native_word'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/rwonce.h:49:9: note: in expansion of macro 'compiletime_assert_rwonce_type'
      49 |         compiletime_assert_rwonce_type(x);                              \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/net/ip6_fib.h:557:27: note: in expansion of macro 'READ_ONCE'
     557 |         gc_args.timeout = READ_ONCE(net->ipv6.sysctl.ip6_rt_gc_interval),
         |                           ^~~~~~~~~
   include/net/ip6_fib.h:557:42: error: 'struct net' has no member named 'ipv6'; did you mean 'ipv4'?
     557 |         gc_args.timeout = READ_ONCE(net->ipv6.sysctl.ip6_rt_gc_interval),
         |                                          ^~~~
   include/linux/compiler_types.h:686:23: note: in definition of macro '__compiletime_assert'
     686 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:9: note: in expansion of macro 'compiletime_assert'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |         ^~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:28: note: in expansion of macro '__native_word'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/rwonce.h:49:9: note: in expansion of macro 'compiletime_assert_rwonce_type'
      49 |         compiletime_assert_rwonce_type(x);                              \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/net/ip6_fib.h:557:27: note: in expansion of macro 'READ_ONCE'
     557 |         gc_args.timeout = READ_ONCE(net->ipv6.sysctl.ip6_rt_gc_interval),
         |                           ^~~~~~~~~
   include/net/ip6_fib.h:557:42: error: 'struct net' has no member named 'ipv6'; did you mean 'ipv4'?
     557 |         gc_args.timeout = READ_ONCE(net->ipv6.sysctl.ip6_rt_gc_interval),
         |                                          ^~~~
   include/linux/compiler_types.h:686:23: note: in definition of macro '__compiletime_assert'
     686 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:9: note: in expansion of macro 'compiletime_assert'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |         ^~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:28: note: in expansion of macro '__native_word'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |                            ^~~~~~~~~~~~~
   include/asm-generic/rwonce.h:49:9: note: in expansion of macro 'compiletime_assert_rwonce_type'
      49 |         compiletime_assert_rwonce_type(x);                              \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/net/ip6_fib.h:557:27: note: in expansion of macro 'READ_ONCE'
     557 |         gc_args.timeout = READ_ONCE(net->ipv6.sysctl.ip6_rt_gc_interval),
         |                           ^~~~~~~~~
   include/net/ip6_fib.h:557:42: error: 'struct net' has no member named 'ipv6'; did you mean 'ipv4'?
     557 |         gc_args.timeout = READ_ONCE(net->ipv6.sysctl.ip6_rt_gc_interval),
         |                                          ^~~~
   include/linux/compiler_types.h:686:23: note: in definition of macro '__compiletime_assert'
     686 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert'
     706 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:36:9: note: in expansion of macro 'compiletime_assert'
      36 |         compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long),  \
         |         ^~~~~~~~~~~~~~~~~~
   include/asm-generic/rwonce.h:49:9: note: in expansion of macro 'compiletime_assert_rwonce_type'
      49 |         compiletime_assert_rwonce_type(x);                              \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/net/ip6_fib.h:557:27: note: in expansion of macro 'READ_ONCE'
     557 |         gc_args.timeout = READ_ONCE(net->ipv6.sysctl.ip6_rt_gc_interval),
         |                           ^~~~~~~~~
   include/net/ip6_fib.h:557:42: error: 'struct net' has no member named 'ipv6'; did you mean 'ipv4'?
     557 |         gc_args.timeout = READ_ONCE(net->ipv6.sysctl.ip6_rt_gc_interval),
         |                                          ^~~~
   include/linux/compiler_types.h:642:53: note: in definition of macro '__unqual_scalar_typeof'
     642 | #define __unqual_scalar_typeof(x) __typeof_unqual__(x)
         |                                                     ^
   include/asm-generic/rwonce.h:50:9: note: in expansion of macro '__READ_ONCE'
      50 |         __READ_ONCE(x);                                                 \
         |         ^~~~~~~~~~~
   include/net/ip6_fib.h:557:27: note: in expansion of macro 'READ_ONCE'
     557 |         gc_args.timeout = READ_ONCE(net->ipv6.sysctl.ip6_rt_gc_interval),
         |                           ^~~~~~~~~
   In file included from ./arch/openrisc/include/generated/asm/rwonce.h:1,
                    from include/linux/compiler.h:372,
                    from include/linux/build_bug.h:5,
                    from include/linux/bits.h:30,
                    from include/linux/capability.h:18,
                    from net/core/sock.c:89:
   include/net/ip6_fib.h:557:42: error: 'struct net' has no member named 'ipv6'; did you mean 'ipv4'?
     557 |         gc_args.timeout = READ_ONCE(net->ipv6.sysctl.ip6_rt_gc_interval),
         |                                          ^~~~
   include/asm-generic/rwonce.h:44:73: note: in definition of macro '__READ_ONCE'
      44 | #define __READ_ONCE(x)  (*(const volatile __unqual_scalar_typeof(x) *)&(x))
         |                                                                         ^
   include/net/ip6_fib.h:557:27: note: in expansion of macro 'READ_ONCE'
     557 |         gc_args.timeout = READ_ONCE(net->ipv6.sysctl.ip6_rt_gc_interval),
         |                           ^~~~~~~~~
   In file included from include/net/xfrm.h:26,
                    from net/core/sock.c:133:
>> include/net/ip6_fib.h:557:73: warning: left-hand operand of comma expression has no effect [-Wunused-value]
     557 |         gc_args.timeout = READ_ONCE(net->ipv6.sysctl.ip6_rt_gc_interval),
         |                                                                         ^


vim +557 include/net/ip6_fib.h

   548	
   549	static inline void fib6_may_remove_gc_list(struct net *net,
   550						   struct fib6_info *f6i)
   551	{
   552		struct fib6_gc_args gc_args;
   553	
   554		if (hlist_unhashed(&f6i->gc_link))
   555			return;
   556	
 > 557		gc_args.timeout = READ_ONCE(net->ipv6.sysctl.ip6_rt_gc_interval),
   558		gc_args.more = 0,
   559	
   560		fib6_age_exceptions(f6i, &gc_args, jiffies);
   561	}
   562	

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

  reply	other threads:[~2026-03-07 11:59 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-07  2:46 [PATCH v1 net 0/2] ipv6: Fix two GC issues with permanent routes Kuniyuki Iwashima
2026-03-07  2:46 ` [PATCH v1 net 1/2] ipv6: Remove permanent routes from tb6_gc_hlist when all exceptions expire Kuniyuki Iwashima
2026-03-07  2:46 ` [PATCH v1 net 2/2] ipv6: Don't remove permanent routes with exceptions from tb6_gc_hlist Kuniyuki Iwashima
2026-03-07 11:58   ` kernel test robot [this message]
2026-03-07 12:44   ` kernel test robot
2026-03-07 13:16   ` kernel test robot
2026-03-07 13:37   ` kernel test robot
2026-03-08  3:08     ` Kuniyuki Iwashima

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