net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'

kernel test robot <[email protected]> Mon, 03 Aug 2026 06:26:11 +0800
Newsgroups dev.linux.lists.oe-kbuild-all,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
Hi Jakub,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   bd1dde877520385f6638af2d0f2bd4f212eb8f34
commit: e9deb406c10f5a73bcfd62f42ca1187b220bc188 Merge tag 'ipsec-2026-06-22' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
date:   6 weeks ago
config: s390-randconfig-r062-20260802 (https://download.01.org/0day-ci/archive/20260803/[email protected]/config)
compiler: s390-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260803/[email protected]/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
| Fixes: e9deb406c10f ("Merge tag 'ipsec-2026-06-22' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec")
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All warnings (new ones prefixed by >>):

   net/xfrm/xfrm_state.c: Assembler messages:
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
>> net/xfrm/xfrm_state.c:1220: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'
   net/xfrm/xfrm_state.c:1225: Warning: missing closing `"'


vim +1220 net/xfrm/xfrm_state.c

edcd582152090b David S. Miller  2006-08-24  1200  
81a331a0e72ddc Steffen Klassert 2024-10-23  1201  struct xfrm_state *xfrm_input_state_lookup(struct net *net, u32 mark,
81a331a0e72ddc Steffen Klassert 2024-10-23  1202  					   const xfrm_address_t *daddr,
81a331a0e72ddc Steffen Klassert 2024-10-23  1203  					   __be32 spi, u8 proto,
81a331a0e72ddc Steffen Klassert 2024-10-23  1204  					   unsigned short family)
81a331a0e72ddc Steffen Klassert 2024-10-23  1205  {
e952837f3ddb0f Florian Westphal 2024-11-28  1206  	struct xfrm_hash_state_ptrs state_ptrs;
81a331a0e72ddc Steffen Klassert 2024-10-23  1207  	struct hlist_head *state_cache_input;
81a331a0e72ddc Steffen Klassert 2024-10-23  1208  	struct xfrm_state *x = NULL;
81a331a0e72ddc Steffen Klassert 2024-10-23  1209  
ddd3d013292031 Herbert Xu       2026-06-12  1210  	/* BH is always disabled on the input path. */
ddd3d013292031 Herbert Xu       2026-06-12  1211  	lockdep_assert_in_softirq();
ddd3d013292031 Herbert Xu       2026-06-12  1212  
6c9b7db96db62e Sebastian Sewior 2025-01-23  1213  	state_cache_input = raw_cpu_ptr(net->xfrm.state_cache_input);
81a331a0e72ddc Steffen Klassert 2024-10-23  1214  
81a331a0e72ddc Steffen Klassert 2024-10-23  1215  	hlist_for_each_entry_rcu(x, state_cache_input, state_cache_input) {
81a331a0e72ddc Steffen Klassert 2024-10-23  1216  		if (x->props.family != family ||
81a331a0e72ddc Steffen Klassert 2024-10-23  1217  		    x->id.spi       != spi ||
81a331a0e72ddc Steffen Klassert 2024-10-23  1218  		    x->id.proto     != proto ||
81a331a0e72ddc Steffen Klassert 2024-10-23  1219  		    !xfrm_addr_equal(&x->id.daddr, daddr, family))
81a331a0e72ddc Steffen Klassert 2024-10-23 @1220  			continue;
81a331a0e72ddc Steffen Klassert 2024-10-23  1221  
81a331a0e72ddc Steffen Klassert 2024-10-23  1222  		if ((mark & x->mark.m) != x->mark.v)
81a331a0e72ddc Steffen Klassert 2024-10-23  1223  			continue;
81a331a0e72ddc Steffen Klassert 2024-10-23  1224  		if (!xfrm_state_hold_rcu(x))
81a331a0e72ddc Steffen Klassert 2024-10-23  1225  			continue;
81a331a0e72ddc Steffen Klassert 2024-10-23  1226  		goto out;
81a331a0e72ddc Steffen Klassert 2024-10-23  1227  	}
81a331a0e72ddc Steffen Klassert 2024-10-23  1228  
e952837f3ddb0f Florian Westphal 2024-11-28  1229  	xfrm_hash_ptrs_get(net, &state_ptrs);
e952837f3ddb0f Florian Westphal 2024-11-28  1230  
e952837f3ddb0f Florian Westphal 2024-11-28  1231  	x = __xfrm_state_lookup(&state_ptrs, mark, daddr, spi, proto, family);
ddd3d013292031 Herbert Xu       2026-06-12  1232  	if (x) {
ddd3d013292031 Herbert Xu       2026-06-12  1233  		spin_lock(&net->xfrm.xfrm_state_lock);
ddd3d013292031 Herbert Xu       2026-06-12  1234  		if (x->km.state != XFRM_STATE_VALID) {
ddd3d013292031 Herbert Xu       2026-06-12  1235  			/*
ddd3d013292031 Herbert Xu       2026-06-12  1236  			 * The state is about to be destroyed.
ddd3d013292031 Herbert Xu       2026-06-12  1237  			 *
ddd3d013292031 Herbert Xu       2026-06-12  1238  			 * Don't add it to the cache but still
ddd3d013292031 Herbert Xu       2026-06-12  1239  			 * return it to the caller.
ddd3d013292031 Herbert Xu       2026-06-12  1240  			 */
ddd3d013292031 Herbert Xu       2026-06-12  1241  		} else if (hlist_unhashed(&x->state_cache_input)) {
81a331a0e72ddc Steffen Klassert 2024-10-23  1242  			hlist_add_head_rcu(&x->state_cache_input, state_cache_input);
81a331a0e72ddc Steffen Klassert 2024-10-23  1243  		} else {
81a331a0e72ddc Steffen Klassert 2024-10-23  1244  			hlist_del_rcu(&x->state_cache_input);
81a331a0e72ddc Steffen Klassert 2024-10-23  1245  			hlist_add_head_rcu(&x->state_cache_input, state_cache_input);
81a331a0e72ddc Steffen Klassert 2024-10-23  1246  		}
ddd3d013292031 Herbert Xu       2026-06-12  1247  		spin_unlock(&net->xfrm.xfrm_state_lock);
81a331a0e72ddc Steffen Klassert 2024-10-23  1248  	}
81a331a0e72ddc Steffen Klassert 2024-10-23  1249  
81a331a0e72ddc Steffen Klassert 2024-10-23  1250  out:
81a331a0e72ddc Steffen Klassert 2024-10-23  1251  	return x;
81a331a0e72ddc Steffen Klassert 2024-10-23  1252  }
81a331a0e72ddc Steffen Klassert 2024-10-23  1253  EXPORT_SYMBOL(xfrm_input_state_lookup);
81a331a0e72ddc Steffen Klassert 2024-10-23  1254  

:::::: The code at line 1220 was first introduced by commit
:::::: 81a331a0e72ddc2f75092603d9577bd1a0ca23ad xfrm: Add an inbound percpu state cache.

:::::: TO: Steffen Klassert <[email protected]>
:::::: CC: Steffen Klassert <[email protected]>

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