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From: kernel test robot <lkp@intel.com>
To: Fernando Fernandez Mancera <fmancera@suse.de>,
	netfilter-devel@vger.kernel.org
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
	coreteam@netfilter.org, pablo@netfilter.org, fw@strlen.de,
	phil@nwl.cc, eric@regit.org,
	Fernando Fernandez Mancera <fmancera@suse.de>,
	Yu Junzhe <junzheyu1@gmail.com>
Subject: Re: [PATCH nf v2] netfilter: nft_reject: prevent unbounded recursion in output hooks
Date: Thu, 24 Sep 2026 06:06:15 +0800	[thread overview]
Message-ID: <202609240611.MRXjmn1k-lkp@intel.com> (raw)
In-Reply-To: <20260922092503.3238-1-fmancera@suse.de>

Hi Fernando,

kernel test robot noticed the following build errors:

[auto build test ERROR on netfilter-nf/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Fernando-Fernandez-Mancera/netfilter-nft_reject-prevent-unbounded-recursion-in-output-hooks/20260922-112503
base:   https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git main
patch link:    https://lore.kernel.org/r/20260922092503.3238-1-fmancera%40suse.de
patch subject: [PATCH nf v2] netfilter: nft_reject: prevent unbounded recursion in output hooks
config: i386-defconfig (https://download.01.org/0day-ci/archive/20260924/202609240611.MRXjmn1k-lkp@intel.com/config)
compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260924/202609240611.MRXjmn1k-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/202609240611.MRXjmn1k-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:317:16: note: expanded from macro '__pcpu_size_call_return'
     317 |         TYPEOF_UNQUAL(variable) pscr_ret__;                             \
         |                       ^~~~~~~~
   include/linux/compiler.h:237:47: note: expanded from macro 'TYPEOF_UNQUAL'
     237 | # define TYPEOF_UNQUAL(exp) __typeof_unqual__(exp)
         |                                               ^~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:318:22: note: expanded from macro '__pcpu_size_call_return'
     318 |         __verify_pcpu_ptr(&(variable));                                 \
         |                             ^~~~~~~~
   include/linux/percpu-defs.h:216:47: note: expanded from macro '__verify_pcpu_ptr'
     216 |         const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL;    \
         |                                                      ^~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:319:16: note: expanded from macro '__pcpu_size_call_return'
     319 |         switch(sizeof(variable)) {                                      \
         |                       ^~~~~~~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:320:31: note: expanded from macro '__pcpu_size_call_return'
     320 |         case 1: pscr_ret__ = stem##1(variable); break;                  \
         |                                      ^~~~~~~~
   note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   arch/x86/include/asm/percpu.h:94:45: note: expanded from macro '__my_cpu_ptr'
      94 | # define __my_cpu_ptr(ptr)      (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
         |                                                  ^~~
   arch/x86/include/asm/percpu.h:93:36: note: expanded from macro '__my_cpu_type'
      93 | # define __my_cpu_type(var)     typeof(var) __percpu_seg_override
         |                                        ^~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:320:31: note: expanded from macro '__pcpu_size_call_return'
     320 |         case 1: pscr_ret__ = stem##1(variable); break;                  \
         |                                      ^~~~~~~~
   note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   arch/x86/include/asm/percpu.h:95:45: note: expanded from macro '__my_cpu_var'
      95 | # define __my_cpu_var(var)      (*__my_cpu_ptr(&(var)))
         |                                                  ^~~
   arch/x86/include/asm/percpu.h:94:72: note: expanded from macro '__my_cpu_ptr'
      94 | # define __my_cpu_ptr(ptr)      (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
         |                                                                             ^~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:320:31: note: expanded from macro '__pcpu_size_call_return'
     320 |         case 1: pscr_ret__ = stem##1(variable); break;                  \
         |                                      ^~~~~~~~
   arch/x86/include/asm/percpu.h:450:52: note: expanded from macro 'raw_cpu_read_1'
     450 | #define raw_cpu_read_1(pcp)                             __raw_cpu_read(1, , pcp)
         |                                                                             ^~~
   arch/x86/include/asm/percpu.h:156:10: note: expanded from macro '__raw_cpu_read'
     156 |         (typeof(_var))(unsigned long) pfo_val__;                        \
         |                 ^~~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:321:31: note: expanded from macro '__pcpu_size_call_return'
     321 |         case 2: pscr_ret__ = stem##2(variable); break;                  \
         |                                      ^~~~~~~~
   note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   arch/x86/include/asm/percpu.h:94:45: note: expanded from macro '__my_cpu_ptr'
      94 | # define __my_cpu_ptr(ptr)      (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
         |                                                  ^~~
   arch/x86/include/asm/percpu.h:93:36: note: expanded from macro '__my_cpu_type'
      93 | # define __my_cpu_type(var)     typeof(var) __percpu_seg_override
         |                                        ^~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:321:31: note: expanded from macro '__pcpu_size_call_return'
     321 |         case 2: pscr_ret__ = stem##2(variable); break;                  \
         |                                      ^~~~~~~~
   note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   arch/x86/include/asm/percpu.h:95:45: note: expanded from macro '__my_cpu_var'
      95 | # define __my_cpu_var(var)      (*__my_cpu_ptr(&(var)))
         |                                                  ^~~
   arch/x86/include/asm/percpu.h:94:72: note: expanded from macro '__my_cpu_ptr'
      94 | # define __my_cpu_ptr(ptr)      (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
         |                                                                             ^~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:321:31: note: expanded from macro '__pcpu_size_call_return'
     321 |         case 2: pscr_ret__ = stem##2(variable); break;                  \
         |                                      ^~~~~~~~
   arch/x86/include/asm/percpu.h:451:52: note: expanded from macro 'raw_cpu_read_2'
     451 | #define raw_cpu_read_2(pcp)                             __raw_cpu_read(2, , pcp)
         |                                                                             ^~~
   arch/x86/include/asm/percpu.h:156:10: note: expanded from macro '__raw_cpu_read'
     156 |         (typeof(_var))(unsigned long) pfo_val__;                        \
         |                 ^~~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:322:31: note: expanded from macro '__pcpu_size_call_return'
     322 |         case 4: pscr_ret__ = stem##4(variable); break;                  \
         |                                      ^~~~~~~~
   note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   arch/x86/include/asm/percpu.h:94:45: note: expanded from macro '__my_cpu_ptr'
      94 | # define __my_cpu_ptr(ptr)      (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
         |                                                  ^~~
   arch/x86/include/asm/percpu.h:93:36: note: expanded from macro '__my_cpu_type'
      93 | # define __my_cpu_type(var)     typeof(var) __percpu_seg_override
         |                                        ^~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:322:31: note: expanded from macro '__pcpu_size_call_return'
     322 |         case 4: pscr_ret__ = stem##4(variable); break;                  \
         |                                      ^~~~~~~~
   note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   arch/x86/include/asm/percpu.h:95:45: note: expanded from macro '__my_cpu_var'
      95 | # define __my_cpu_var(var)      (*__my_cpu_ptr(&(var)))
         |                                                  ^~~
   arch/x86/include/asm/percpu.h:94:72: note: expanded from macro '__my_cpu_ptr'
      94 | # define __my_cpu_ptr(ptr)      (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
         |                                                                             ^~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:322:31: note: expanded from macro '__pcpu_size_call_return'
     322 |         case 4: pscr_ret__ = stem##4(variable); break;                  \
         |                                      ^~~~~~~~
   arch/x86/include/asm/percpu.h:452:52: note: expanded from macro 'raw_cpu_read_4'
     452 | #define raw_cpu_read_4(pcp)                             __raw_cpu_read(4, , pcp)
         |                                                                             ^~~
   arch/x86/include/asm/percpu.h:156:10: note: expanded from macro '__raw_cpu_read'
     156 |         (typeof(_var))(unsigned long) pfo_val__;                        \
         |                 ^~~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:323:31: note: expanded from macro '__pcpu_size_call_return'
     323 |         case 8: pscr_ret__ = stem##8(variable); break;                  \
         |                                      ^~~~~~~~
   note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   include/linux/percpu-defs.h:240:20: note: expanded from macro 'raw_cpu_ptr'
     240 |         __verify_pcpu_ptr(ptr);                                         \
         |                           ^~~
   include/linux/percpu-defs.h:216:47: note: expanded from macro '__verify_pcpu_ptr'
     216 |         const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL;    \
         |                                                      ^~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:323:31: note: expanded from macro '__pcpu_size_call_return'
     323 |         case 8: pscr_ret__ = stem##8(variable); break;                  \
         |                                      ^~~~~~~~
   note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   include/linux/percpu-defs.h:241:19: note: expanded from macro 'raw_cpu_ptr'
     241 |         arch_raw_cpu_ptr(ptr);                                          \
         |                          ^~~
   arch/x86/include/asm/percpu.h:66:39: note: expanded from macro 'arch_raw_cpu_ptr'
      66 |         tcp_ptr__ += (__force unsigned long)(_ptr);                     \
         |                                              ^~~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      12 |         return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
         |                                         ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
     432 |         raw_cpu_read(pcp);                                              \
         |                      ^~~
   include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
     407 | #define raw_cpu_read(pcp)               __pcpu_size_call_return(raw_cpu_read_, pcp)
         |                                                                                ^~~
   include/linux/percpu-defs.h:323:31: note: expanded from macro '__pcpu_size_call_return'
     323 |         case 8: pscr_ret__ = stem##8(variable); break;                  \
         |                                      ^~~~~~~~
   note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   arch/x86/include/asm/percpu.h:67:19: note: expanded from macro 'arch_raw_cpu_ptr'
      67 |         (TYPEOF_UNQUAL(*(_ptr)) __force __kernel *)tcp_ptr__;           \
         |                          ^~~~
   include/linux/compiler.h:237:47: note: expanded from macro 'TYPEOF_UNQUAL'
     237 | # define TYPEOF_UNQUAL(exp) __typeof_unqual__(exp)
         |                                               ^~~
   include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
      77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
   include/net/netfilter/nf_recursion.h:18:35: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      18 |         __this_cpu_inc(softnet_data.xmit.nf_dup_skb_recursion);
         |                        ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:484:45: note: expanded from macro '__this_cpu_inc'
     484 | #define __this_cpu_inc(pcp)             __this_cpu_add(pcp, 1)
         |                                                        ^~~
   include/linux/percpu-defs.h:444:14: note: expanded from macro '__this_cpu_add'
     444 |         raw_cpu_add(pcp, val);                                          \
         |                     ^~~
   include/linux/percpu-defs.h:409:63: note: expanded from macro 'raw_cpu_add'
     409 | #define raw_cpu_add(pcp, val)           __pcpu_size_call(raw_cpu_add_, pcp, val)
         |                                                                        ^~~
   include/linux/percpu-defs.h:362:22: note: expanded from macro '__pcpu_size_call'
     362 |         __verify_pcpu_ptr(&(variable));                                 \
         |                             ^~~~~~~~
   include/linux/percpu-defs.h:216:47: note: expanded from macro '__verify_pcpu_ptr'
     216 |         const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL;    \
         |                                                      ^~~
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
   include/net/netfilter/nf_recursion.h:18:35: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      18 |         __this_cpu_inc(softnet_data.xmit.nf_dup_skb_recursion);
         |                        ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:484:45: note: expanded from macro '__this_cpu_inc'
     484 | #define __this_cpu_inc(pcp)             __this_cpu_add(pcp, 1)
         |                                                        ^~~
   include/linux/percpu-defs.h:444:14: note: expanded from macro '__this_cpu_add'
     444 |         raw_cpu_add(pcp, val);                                          \
         |                     ^~~
   include/linux/percpu-defs.h:409:63: note: expanded from macro 'raw_cpu_add'
     409 | #define raw_cpu_add(pcp, val)           __pcpu_size_call(raw_cpu_add_, pcp, val)
         |                                                                        ^~~
   include/linux/percpu-defs.h:363:16: note: expanded from macro '__pcpu_size_call'
     363 |         switch(sizeof(variable)) {                                      \
         |                       ^~~~~~~~
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
   include/net/netfilter/nf_recursion.h:18:35: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      18 |         __this_cpu_inc(softnet_data.xmit.nf_dup_skb_recursion);
         |                        ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:484:45: note: expanded from macro '__this_cpu_inc'
     484 | #define __this_cpu_inc(pcp)             __this_cpu_add(pcp, 1)
         |                                                        ^~~
   include/linux/percpu-defs.h:444:14: note: expanded from macro '__this_cpu_add'
     444 |         raw_cpu_add(pcp, val);                                          \
         |                     ^~~
   include/linux/percpu-defs.h:409:63: note: expanded from macro 'raw_cpu_add'
     409 | #define raw_cpu_add(pcp, val)           __pcpu_size_call(raw_cpu_add_, pcp, val)
         |                                                                        ^~~
   note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   arch/x86/include/asm/percpu.h:468:56: note: expanded from macro 'raw_cpu_add_1'
     468 | #define raw_cpu_add_1(pcp, val)                         percpu_add_op(1, , (pcp), val)
         |                                                                             ^~~
   arch/x86/include/asm/percpu.h:226:17: note: expanded from macro 'percpu_add_op'
     226 |                 TYPEOF_UNQUAL(var) pao_tmp__;                           \
         |                               ^~~
   include/linux/compiler.h:237:47: note: expanded from macro 'TYPEOF_UNQUAL'
     237 | # define TYPEOF_UNQUAL(exp) __typeof_unqual__(exp)
         |                                               ^~~
   In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
   include/net/netfilter/nf_recursion.h:18:35: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
      18 |         __this_cpu_inc(softnet_data.xmit.nf_dup_skb_recursion);
         |                        ~~~~~~~~~~~~~~~~~ ^
   include/linux/percpu-defs.h:484:45: note: expanded from macro '__this_cpu_inc'
     484 | #define __this_cpu_inc(pcp)             __this_cpu_add(pcp, 1)
         |                                                        ^~~
   include/linux/percpu-defs.h:444:14: note: expanded from macro '__this_cpu_add'
     444 |         raw_cpu_add(pcp, val);                                          \
         |                     ^~~
   include/linux/percpu-defs.h:409:63: note: expanded from macro 'raw_cpu_add'
     409 | #define raw_cpu_add(pcp, val)           __pcpu_size_call(raw_cpu_add_, pcp, val)
         |                                                                        ^~~
   note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   arch/x86/include/asm/percpu.h:95:45: note: expanded from macro '__my_cpu_var'
      95 | # define __my_cpu_var(var)      (*__my_cpu_ptr(&(var)))
         |                                                  ^~~
   arch/x86/include/asm/percpu.h:94:45: note: expanded from macro '__my_cpu_ptr'
      94 | # define __my_cpu_ptr(ptr)      (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
         |                                                  ^~~
   arch/x86/include/asm/percpu.h:93:36: note: expanded from macro '__my_cpu_type'


vim +12 include/net/netfilter/nf_recursion.h

     8	
     9	#ifndef CONFIG_PREEMPT_RT
    10	static inline bool nf_dev_xmit_recursion(void)
    11	{
  > 12		return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
    13				NF_RECURSION_LIMIT);
    14	}
    15	

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           reply	other threads:[~2026-09-23 22:07 UTC|newest]

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