net/rxrpc/output.c:974:1: warning: the frame size of 1160 bytes is larger than 1024 bytes

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   86731a2a651e58953fc949573895f2fa6d456841
commit: 5800b1cf3fd8ccab752a101865be1e76dac33142 rxrpc: Allow CHALLENGEs to the passed to the app for a RESPONSE
date:   2 months ago
config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20250624/202506240423.E942yKJP-lkp@xxxxxxxxx/config)
compiler: s390-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250624/202506240423.E942yKJP-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202506240423.E942yKJP-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   net/rxrpc/output.c: In function 'rxrpc_send_response':
>> net/rxrpc/output.c:974:1: warning: the frame size of 1160 bytes is larger than 1024 bytes [-Wframe-larger-than=]
     974 | }
         | ^


vim +974 net/rxrpc/output.c

   919	
   920	/*
   921	 * Send a RESPONSE message.
   922	 */
   923	void rxrpc_send_response(struct rxrpc_connection *conn, struct sk_buff *response)
   924	{
   925		struct rxrpc_skb_priv *sp = rxrpc_skb(response);
   926		struct scatterlist sg[16];
   927		struct bio_vec bvec[16];
   928		struct msghdr msg;
   929		size_t len = sp->resp.len;
   930		__be32 wserial;
   931		u32 serial = 0;
   932		int ret, nr_sg;
   933	
   934		_enter("C=%x,%x", conn->debug_id, sp->resp.challenge_serial);
   935	
   936		sg_init_table(sg, ARRAY_SIZE(sg));
   937		ret = skb_to_sgvec(response, sg, 0, len);
   938		if (ret < 0)
   939			goto fail;
   940		nr_sg = ret;
   941	
   942		for (int i = 0; i < nr_sg; i++)
   943			bvec_set_page(&bvec[i], sg_page(&sg[i]), sg[i].length, sg[i].offset);
   944	
   945		iov_iter_bvec(&msg.msg_iter, WRITE, bvec, nr_sg, len);
   946	
   947		msg.msg_name	= &conn->peer->srx.transport;
   948		msg.msg_namelen	= conn->peer->srx.transport_len;
   949		msg.msg_control	= NULL;
   950		msg.msg_controllen = 0;
   951		msg.msg_flags	= MSG_SPLICE_PAGES;
   952	
   953		serial = rxrpc_get_next_serials(conn, 1);
   954		wserial = htonl(serial);
   955	
   956		ret = skb_store_bits(response, offsetof(struct rxrpc_wire_header, serial),
   957				     &wserial, sizeof(wserial));
   958		if (ret < 0)
   959			goto fail;
   960	
   961		rxrpc_local_dont_fragment(conn->local, false);
   962	
   963		ret = do_udp_sendmsg(conn->local->socket, &msg, len);
   964		if (ret < 0)
   965			goto fail;
   966	
   967		conn->peer->last_tx_at = ktime_get_seconds();
   968		return;
   969	
   970	fail:
   971		trace_rxrpc_tx_fail(conn->debug_id, serial, ret,
   972				    rxrpc_tx_point_response);
   973		kleave(" = %d", ret);
 > 974	}

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