Re: [PATCH ipsec] xfrm: Fix unregister netdevice hang on hardware offload.

[kernel test robot <lkp@intel.com>]

Hi Steffen,

kernel test robot noticed the following build errors:

[auto build test ERROR on klassert-ipsec-next/master]
[also build test ERROR on klassert-ipsec/master net/main net-next/main linus/master v6.10-rc3 next-20240612]
[cannot apply to horms-ipvs/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Steffen-Klassert/xfrm-Fix-unregister-netdevice-hang-on-hardware-offload/20240612-171414
base:   https://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next.git master
patch link:    https://lore.kernel.org/r/ZmlmTTYL6AkBel4P%40gauss3.secunet.de
patch subject: [PATCH ipsec] xfrm: Fix unregister netdevice hang on hardware offload.
config: riscv-defconfig (https://download.01.org/0day-ci/archive/20240612/202406122121.zejJ7IGG-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 4403cdbaf01379de96f8d0d6ea4f51a085e37766)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240612/202406122121.zejJ7IGG-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/202406122121.zejJ7IGG-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from net/xfrm/xfrm_state.c:19:
   In file included from include/net/xfrm.h:9:
   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/riscv/include/asm/cacheflush.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_"
         |                               ~~~~~~~~~~~ ^ ~~~
   net/xfrm/xfrm_state.c:688:6: error: redefinition of 'xfrm_dev_state_delete'
     688 | void xfrm_dev_state_delete(struct xfrm_state *x)
         |      ^
   include/net/xfrm.h:2022:20: note: previous definition is here
    2022 | static inline void xfrm_dev_state_delete(struct xfrm_state *x)
         |                    ^
>> net/xfrm/xfrm_state.c:694:8: error: no member named 'xfrmdev_ops' in 'struct net_device'
     694 |                 dev->xfrmdev_ops->xdo_dev_state_delete(x);
         |                 ~~~  ^
   net/xfrm/xfrm_state.c:701:6: error: redefinition of 'xfrm_dev_state_free'
     701 | void xfrm_dev_state_free(struct xfrm_state *x)
         |      ^
   include/net/xfrm.h:2026:20: note: previous definition is here
    2026 | static inline void xfrm_dev_state_free(struct xfrm_state *x)
         |                    ^
   net/xfrm/xfrm_state.c:706:18: error: no member named 'xfrmdev_ops' in 'struct net_device'; did you mean 'l3mdev_ops'?
     706 |         if (dev && dev->xfrmdev_ops) {
         |                         ^~~~~~~~~~~
         |                         l3mdev_ops
   include/linux/netdevice.h:2171:27: note: 'l3mdev_ops' declared here
    2171 |         const struct l3mdev_ops *l3mdev_ops;
         |                                  ^
   net/xfrm/xfrm_state.c:712:12: error: no member named 'xfrmdev_ops' in 'struct net_device'
     712 |                 if (dev->xfrmdev_ops->xdo_dev_state_free)
         |                     ~~~  ^
   net/xfrm/xfrm_state.c:713:9: error: no member named 'xfrmdev_ops' in 'struct net_device'
     713 |                         dev->xfrmdev_ops->xdo_dev_state_free(x);
         |                         ~~~  ^
   1 warning and 6 errors generated.


vim +694 net/xfrm/xfrm_state.c

   687	
   688	void xfrm_dev_state_delete(struct xfrm_state *x)
   689	{
   690		struct xfrm_dev_offload *xso = &x->xso;
   691		struct net_device *dev = READ_ONCE(xso->dev);
   692	
   693		if (dev) {
 > 694			dev->xfrmdev_ops->xdo_dev_state_delete(x);
   695			spin_lock_bh(&xfrm_state_dev_gc_lock);
   696			hlist_add_head(&x->dev_gclist, &xfrm_state_dev_gc_list);
   697			spin_unlock_bh(&xfrm_state_dev_gc_lock);
   698		}
   699	}
   700	

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