linux-kernel - drivers/net/wireguard/allowedips.c:59:1: warning: the frame size of 1040 bytes is larger than 1024 bytes

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Message-ID: <202002101239.lVITTq0Y%lkp@intel.com>
Date:   Mon, 10 Feb 2020 12:59:40 +0800
From:   kbuild test robot <lkp@...el.com>
To:     "Jason A. Donenfeld" <zx2c4@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: drivers/net/wireguard/allowedips.c:59:1: warning: the frame size of
 1040 bytes is larger than 1024 bytes

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   bb6d3fb354c5ee8d6bde2d576eb7220ea09862b9
commit: e7096c131e5161fa3b8e52a650d7719d2857adfd net: WireGuard secure network tunnel
date:   9 weeks ago
config: x86_64-lck-7890 (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
        git checkout e7096c131e5161fa3b8e52a650d7719d2857adfd
        # save the attached .config to linux build tree
        make ARCH=x86_64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   drivers/net/wireguard/allowedips.c: In function 'root_free_rcu':
>> drivers/net/wireguard/allowedips.c:59:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=]
    }
    ^
   drivers/net/wireguard/allowedips.c: In function 'root_remove_peer_lists':
   drivers/net/wireguard/allowedips.c:72:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=]
    }
    ^
   drivers/net/wireguard/allowedips.c: In function 'walk_remove_by_peer.isra.3':
   drivers/net/wireguard/allowedips.c:126:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
    }
    ^

vim +59 drivers/net/wireguard/allowedips.c

    47	
    48	static void root_free_rcu(struct rcu_head *rcu)
    49	{
    50		struct allowedips_node *node, *stack[128] = {
    51			container_of(rcu, struct allowedips_node, rcu) };
    52		unsigned int len = 1;
    53	
    54		while (len > 0 && (node = stack[--len])) {
    55			push_rcu(stack, node->bit[0], &len);
    56			push_rcu(stack, node->bit[1], &len);
    57			kfree(node);
    58		}
  > 59	}
    60	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (49624 bytes)