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* [zen-kernel-zen-kernel:5.9/zen-sauce 24/24] drivers/staging/wlan-ng/cfg80211.c:538:1: warning: the frame size of 2712 bytes is larger than 2048 bytes
@ 2020-10-13  0:03 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2020-10-13  0:03 UTC (permalink / raw)
  To: kbuild-all

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Hi Sultan,

First bad commit (maybe != root cause):

tree:   https://github.com/zen-kernel/zen-kernel 5.9/zen-sauce
head:   a49dc684580cbc31949bfc4220f8ed5346382c49
commit: a49dc684580cbc31949bfc4220f8ed5346382c49 [24/24] kbuild: Disable stack conservation for GCC
config: mips-allyesconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/zen-kernel/zen-kernel/commit/a49dc684580cbc31949bfc4220f8ed5346382c49
        git remote add zen-kernel-zen-kernel https://github.com/zen-kernel/zen-kernel
        git fetch --no-tags zen-kernel-zen-kernel 5.9/zen-sauce
        git checkout a49dc684580cbc31949bfc4220f8ed5346382c49
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   In file included from drivers/staging/wlan-ng/p80211netdev.c:92:
   drivers/staging/wlan-ng/cfg80211.c: In function 'prism2_connect':
>> drivers/staging/wlan-ng/cfg80211.c:538:1: warning: the frame size of 2712 bytes is larger than 2048 bytes [-Wframe-larger-than=]
     538 | }
         | ^

vim +538 drivers/staging/wlan-ng/cfg80211.c

cb3126e60ffc1b Karl Relton       2010-06-03  431  
55da06eba89dc0 Teodora Baluta    2013-10-08  432  static int prism2_connect(struct wiphy *wiphy, struct net_device *dev,
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  433  			  struct cfg80211_connect_params *sme)
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  434  {
c9573a8d1963ba sayli karnik      2016-09-18  435  	struct wlandevice *wlandev = dev->ml_priv;
cb3126e60ffc1b Karl Relton       2010-06-03  436  	struct ieee80211_channel *channel = sme->channel;
b6bb56e6aa2808 Edgardo Hames     2010-08-02  437  	struct p80211msg_lnxreq_autojoin msg_join;
cb3126e60ffc1b Karl Relton       2010-06-03  438  	u32 did;
cb3126e60ffc1b Karl Relton       2010-06-03  439  	int length = sme->ssid_len;
cb3126e60ffc1b Karl Relton       2010-06-03  440  	int chan = -1;
cb3126e60ffc1b Karl Relton       2010-06-03  441  	int is_wep = (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP40) ||
cb3126e60ffc1b Karl Relton       2010-06-03  442  	    (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP104);
cb3126e60ffc1b Karl Relton       2010-06-03  443  	int result;
cb3126e60ffc1b Karl Relton       2010-06-03  444  	int err = 0;
cb3126e60ffc1b Karl Relton       2010-06-03  445  
cb3126e60ffc1b Karl Relton       2010-06-03  446  	/* Set the channel */
cb3126e60ffc1b Karl Relton       2010-06-03  447  	if (channel) {
cb3126e60ffc1b Karl Relton       2010-06-03  448  		chan = ieee80211_frequency_to_channel(channel->center_freq);
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  449  		result = prism2_domibset_uint32(wlandev,
93d5a1dce98c03 Tim Collier       2018-09-26  450  						DIDMIB_DOT11PHY_DSSSTABLE_CURRENTCHANNEL,
cb3126e60ffc1b Karl Relton       2010-06-03  451  						chan);
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  452  		if (result)
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  453  			goto exit;
cb3126e60ffc1b Karl Relton       2010-06-03  454  	}
cb3126e60ffc1b Karl Relton       2010-06-03  455  
d34602de3ba29b Justin P. Mattock 2012-09-24  456  	/* Set the authorization */
cb3126e60ffc1b Karl Relton       2010-06-03  457  	if ((sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) ||
cb3126e60ffc1b Karl Relton       2010-06-03  458  	    ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && !is_wep))
cb3126e60ffc1b Karl Relton       2010-06-03  459  		msg_join.authtype.data = P80211ENUM_authalg_opensystem;
cb3126e60ffc1b Karl Relton       2010-06-03  460  	else if ((sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY) ||
cb3126e60ffc1b Karl Relton       2010-06-03  461  		 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && is_wep))
cb3126e60ffc1b Karl Relton       2010-06-03  462  		msg_join.authtype.data = P80211ENUM_authalg_sharedkey;
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  463  	else
eed88971337309 Avinash Kumar     2013-09-06  464  		netdev_warn(dev,
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  465  			    "Unhandled authorisation type for connect (%d)\n",
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  466  			    sme->auth_type);
cb3126e60ffc1b Karl Relton       2010-06-03  467  
cb3126e60ffc1b Karl Relton       2010-06-03  468  	/* Set the encryption - we only support wep */
cb3126e60ffc1b Karl Relton       2010-06-03  469  	if (is_wep) {
cb3126e60ffc1b Karl Relton       2010-06-03  470  		if (sme->key) {
153c5d8191c261 Colin Ian King    2019-10-14  471  			if (sme->key_idx >= NUM_WEPKEYS)
153c5d8191c261 Colin Ian King    2019-10-14  472  				return -EINVAL;
0ca6d8e74489b0 Claudiu Beznea    2016-08-26  473  
cb3126e60ffc1b Karl Relton       2010-06-03  474  			result = prism2_domibset_uint32(wlandev,
eeeeacd83720c1 Tim Collier       2018-09-26  475  				DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID,
cb3126e60ffc1b Karl Relton       2010-06-03  476  				sme->key_idx);
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  477  			if (result)
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  478  				goto exit;
cb3126e60ffc1b Karl Relton       2010-06-03  479  
cb3126e60ffc1b Karl Relton       2010-06-03  480  			/* send key to driver */
ce0f34e4af71d7 Tim Collier       2018-09-26  481  			did = didmib_dot11smt_wepdefaultkeystable_key(
0ca6d8e74489b0 Claudiu Beznea    2016-08-26  482  					sme->key_idx + 1);
8aac4d443980a4 Devendra Naga     2012-06-06  483  			result = prism2_domibset_pstr32(wlandev,
8aac4d443980a4 Devendra Naga     2012-06-06  484  							did, sme->key_len,
8aac4d443980a4 Devendra Naga     2012-06-06  485  							(u8 *)sme->key);
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  486  			if (result)
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  487  				goto exit;
cb3126e60ffc1b Karl Relton       2010-06-03  488  		}
cb3126e60ffc1b Karl Relton       2010-06-03  489  
cb3126e60ffc1b Karl Relton       2010-06-03  490  		/* Assume we should set privacy invoked and exclude unencrypted
35028fe1a60465 Gavin O'Leary     2015-11-23  491  		 * We could possible use sme->privacy here, but the assumption
35028fe1a60465 Gavin O'Leary     2015-11-23  492  		 * seems reasonable anyways
35028fe1a60465 Gavin O'Leary     2015-11-23  493  		 */
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  494  		result = prism2_domibset_uint32(wlandev,
184fcaa1935ee2 Tim Collier       2018-09-26  495  						DIDMIB_DOT11SMT_PRIVACYTABLE_PRIVACYINVOKED,
cb3126e60ffc1b Karl Relton       2010-06-03  496  						P80211ENUM_truth_true);
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  497  		if (result)
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  498  			goto exit;
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  499  
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  500  		result = prism2_domibset_uint32(wlandev,
2ddc995d05eb59 Tim Collier       2018-09-26  501  						DIDMIB_DOT11SMT_PRIVACYTABLE_EXCLUDEUNENCRYPTED,
cb3126e60ffc1b Karl Relton       2010-06-03  502  						P80211ENUM_truth_true);
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  503  		if (result)
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  504  			goto exit;
cb3126e60ffc1b Karl Relton       2010-06-03  505  
cb3126e60ffc1b Karl Relton       2010-06-03  506  	} else {
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  507  		/* Assume we should unset privacy invoked
35028fe1a60465 Gavin O'Leary     2015-11-23  508  		 * and exclude unencrypted
35028fe1a60465 Gavin O'Leary     2015-11-23  509  		 */
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  510  		result = prism2_domibset_uint32(wlandev,
184fcaa1935ee2 Tim Collier       2018-09-26  511  						DIDMIB_DOT11SMT_PRIVACYTABLE_PRIVACYINVOKED,
cb3126e60ffc1b Karl Relton       2010-06-03  512  						P80211ENUM_truth_false);
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  513  		if (result)
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  514  			goto exit;
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  515  
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  516  		result = prism2_domibset_uint32(wlandev,
2ddc995d05eb59 Tim Collier       2018-09-26  517  						DIDMIB_DOT11SMT_PRIVACYTABLE_EXCLUDEUNENCRYPTED,
cb3126e60ffc1b Karl Relton       2010-06-03  518  						P80211ENUM_truth_false);
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  519  		if (result)
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  520  			goto exit;
cb3126e60ffc1b Karl Relton       2010-06-03  521  	}
cb3126e60ffc1b Karl Relton       2010-06-03  522  
cb3126e60ffc1b Karl Relton       2010-06-03  523  	/* Now do the actual join. Note there is no way that I can
4f9de774a6fea8 Gavin O'Leary     2015-11-23  524  	 * see to request a specific bssid
4f9de774a6fea8 Gavin O'Leary     2015-11-23  525  	 */
b1f1118bfcbc55 Tim Collier       2018-09-26  526  	msg_join.msgcode = DIDMSG_LNXREQ_AUTOJOIN;
cb3126e60ffc1b Karl Relton       2010-06-03  527  
cb3126e60ffc1b Karl Relton       2010-06-03  528  	memcpy(msg_join.ssid.data.data, sme->ssid, length);
cb3126e60ffc1b Karl Relton       2010-06-03  529  	msg_join.ssid.data.len = length;
cb3126e60ffc1b Karl Relton       2010-06-03  530  
cb3126e60ffc1b Karl Relton       2010-06-03  531  	result = p80211req_dorequest(wlandev, (u8 *)&msg_join);
cb3126e60ffc1b Karl Relton       2010-06-03  532  
cb3126e60ffc1b Karl Relton       2010-06-03  533  exit:
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  534  	if (result)
8dd82ebe7d8e68 Edgardo Hames     2010-07-24  535  		err = -EFAULT;
cb3126e60ffc1b Karl Relton       2010-06-03  536  
cb3126e60ffc1b Karl Relton       2010-06-03  537  	return err;
cb3126e60ffc1b Karl Relton       2010-06-03 @538  }
cb3126e60ffc1b Karl Relton       2010-06-03  539  

:::::: The code at line 538 was first introduced by commit
:::::: cb3126e60ffc1b7658a6ff4f6874585098bf9887 Staging: wlan-ng: Switch from wext to cfg80211

:::::: TO: Karl Relton <karllinuxtest.relton@ntlworld.com>
:::::: CC: Greg Kroah-Hartman <gregkh@suse.de>

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

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2020-10-13  0:03 [zen-kernel-zen-kernel:5.9/zen-sauce 24/24] drivers/staging/wlan-ng/cfg80211.c:538:1: warning: the frame size of 2712 bytes is larger than 2048 bytes kernel test robot

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