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Date:   Thu, 19 May 2022 00:55:45 +0800
From:   kernel test robot <lkp@intel.com>
To:     Sascha Hauer <s.hauer@pengutronix.de>,
        linux-wireless@vger.kernel.org
Cc:     kbuild-all@lists.01.org, Neo Jou <neojou@gmail.com>,
        Hans Ulli Kroll <linux@ulli-kroll.de>,
        Ping-Ke Shih <pkshih@realtek.com>,
        Yan-Hsuan Chuang <tony0620emma@gmail.com>,
        Kalle Valo <kvalo@kernel.org>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
        kernel@pengutronix.de, Johannes Berg <johannes@sipsolutions.net>,
        Sascha Hauer <s.hauer@pengutronix.de>
Subject: Re: [PATCH 07/10] rtw88: Add rtw8723du chipset support
Message-ID: <202205190028.z15SPbJx-lkp@intel.com>
References: <20220518082318.3898514-8-s.hauer@pengutronix.de>
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In-Reply-To: <20220518082318.3898514-8-s.hauer@pengutronix.de>
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Hi Sascha,

I love your patch! Perhaps something to improve:

[auto build test WARNING on wireless-next/main]
[also build test WARNING on wireless/main v5.18-rc7 next-20220518]
[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]

url:    https://github.com/intel-lab-lkp/linux/commits/Sascha-Hauer/RTW88-Add-support-for-USB-variants/20220518-162621
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git main
config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20220519/202205190028.z15SPbJx-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 11.3.0
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/intel-lab-lkp/linux/commit/0a06adba364ef264404e3c7ae111a71f0d74c5a9
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Sascha-Hauer/RTW88-Add-support-for-USB-variants/20220518-162621
        git checkout 0a06adba364ef264404e3c7ae111a71f0d74c5a9
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/net/wireless/realtek/rtw88/

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 >>):

>> drivers/net/wireless/realtek/rtw88/util.c:119:6: warning: no previous prototype for 'rtw_collect_sta_iter' [-Wmissing-prototypes]
     119 | void rtw_collect_sta_iter(void *data, struct ieee80211_sta *sta)
         |      ^~~~~~~~~~~~~~~~~~~~
>> drivers/net/wireless/realtek/rtw88/util.c:165:6: warning: no previous prototype for 'rtw_collect_vif_iter' [-Wmissing-prototypes]
     165 | void rtw_collect_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
         |      ^~~~~~~~~~~~~~~~~~~~


vim +/rtw_collect_sta_iter +119 drivers/net/wireless/realtek/rtw88/util.c

1c99f6652d3fbb Sascha Hauer 2022-05-18  118  
1c99f6652d3fbb Sascha Hauer 2022-05-18 @119  void rtw_collect_sta_iter(void *data, struct ieee80211_sta *sta)
1c99f6652d3fbb Sascha Hauer 2022-05-18  120  {
1c99f6652d3fbb Sascha Hauer 2022-05-18  121  	struct rtw_iter_stas_data *iter_stas = data;
1c99f6652d3fbb Sascha Hauer 2022-05-18  122  	struct rtw_stas_entry *stas_entry;
1c99f6652d3fbb Sascha Hauer 2022-05-18  123  
1c99f6652d3fbb Sascha Hauer 2022-05-18  124  	stas_entry = kmalloc(sizeof(*stas_entry), GFP_ATOMIC);
1c99f6652d3fbb Sascha Hauer 2022-05-18  125  	if (!stas_entry)
1c99f6652d3fbb Sascha Hauer 2022-05-18  126  		return;
1c99f6652d3fbb Sascha Hauer 2022-05-18  127  
1c99f6652d3fbb Sascha Hauer 2022-05-18  128  	stas_entry->sta = sta;
1c99f6652d3fbb Sascha Hauer 2022-05-18  129  	list_add_tail(&stas_entry->list, &iter_stas->list);
1c99f6652d3fbb Sascha Hauer 2022-05-18  130  }
1c99f6652d3fbb Sascha Hauer 2022-05-18  131  
1c99f6652d3fbb Sascha Hauer 2022-05-18  132  void rtw_iterate_stas(struct rtw_dev *rtwdev,
1c99f6652d3fbb Sascha Hauer 2022-05-18  133  		      void (*iterator)(void *data,
1c99f6652d3fbb Sascha Hauer 2022-05-18  134  				       struct ieee80211_sta *sta),
1c99f6652d3fbb Sascha Hauer 2022-05-18  135  				       void *data)
1c99f6652d3fbb Sascha Hauer 2022-05-18  136  {
1c99f6652d3fbb Sascha Hauer 2022-05-18  137  	struct rtw_iter_stas_data iter_data;
1c99f6652d3fbb Sascha Hauer 2022-05-18  138  	struct rtw_stas_entry *sta_entry, *tmp;
1c99f6652d3fbb Sascha Hauer 2022-05-18  139  
1c99f6652d3fbb Sascha Hauer 2022-05-18  140  	iter_data.rtwdev = rtwdev;
1c99f6652d3fbb Sascha Hauer 2022-05-18  141  	INIT_LIST_HEAD(&iter_data.list);
1c99f6652d3fbb Sascha Hauer 2022-05-18  142  
1c99f6652d3fbb Sascha Hauer 2022-05-18  143  	ieee80211_iterate_stations_atomic(rtwdev->hw, rtw_collect_sta_iter,
1c99f6652d3fbb Sascha Hauer 2022-05-18  144  					  &iter_data);
1c99f6652d3fbb Sascha Hauer 2022-05-18  145  
1c99f6652d3fbb Sascha Hauer 2022-05-18  146  	list_for_each_entry_safe(sta_entry, tmp, &iter_data.list,
1c99f6652d3fbb Sascha Hauer 2022-05-18  147  				 list) {
1c99f6652d3fbb Sascha Hauer 2022-05-18  148  		list_del_init(&sta_entry->list);
1c99f6652d3fbb Sascha Hauer 2022-05-18  149  		iterator(data, sta_entry->sta);
1c99f6652d3fbb Sascha Hauer 2022-05-18  150  		kfree(sta_entry);
1c99f6652d3fbb Sascha Hauer 2022-05-18  151  	}
1c99f6652d3fbb Sascha Hauer 2022-05-18  152  }
1c99f6652d3fbb Sascha Hauer 2022-05-18  153  
1c99f6652d3fbb Sascha Hauer 2022-05-18  154  struct rtw_vifs_entry {
1c99f6652d3fbb Sascha Hauer 2022-05-18  155  	struct list_head list;
1c99f6652d3fbb Sascha Hauer 2022-05-18  156  	struct ieee80211_vif *vif;
1c99f6652d3fbb Sascha Hauer 2022-05-18  157  	u8 mac[ETH_ALEN];
1c99f6652d3fbb Sascha Hauer 2022-05-18  158  };
1c99f6652d3fbb Sascha Hauer 2022-05-18  159  
1c99f6652d3fbb Sascha Hauer 2022-05-18  160  struct rtw_iter_vifs_data {
1c99f6652d3fbb Sascha Hauer 2022-05-18  161  	struct rtw_dev *rtwdev;
1c99f6652d3fbb Sascha Hauer 2022-05-18  162  	struct list_head list;
1c99f6652d3fbb Sascha Hauer 2022-05-18  163  };
1c99f6652d3fbb Sascha Hauer 2022-05-18  164  
1c99f6652d3fbb Sascha Hauer 2022-05-18 @165  void rtw_collect_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
1c99f6652d3fbb Sascha Hauer 2022-05-18  166  {
1c99f6652d3fbb Sascha Hauer 2022-05-18  167  	struct rtw_iter_vifs_data *iter_stas = data;
1c99f6652d3fbb Sascha Hauer 2022-05-18  168  	struct rtw_vifs_entry *vifs_entry;
1c99f6652d3fbb Sascha Hauer 2022-05-18  169  
1c99f6652d3fbb Sascha Hauer 2022-05-18  170  	vifs_entry = kmalloc(sizeof(*vifs_entry), GFP_ATOMIC);
1c99f6652d3fbb Sascha Hauer 2022-05-18  171  	if (!vifs_entry)
1c99f6652d3fbb Sascha Hauer 2022-05-18  172  		return;
1c99f6652d3fbb Sascha Hauer 2022-05-18  173  
1c99f6652d3fbb Sascha Hauer 2022-05-18  174  	vifs_entry->vif = vif;
1c99f6652d3fbb Sascha Hauer 2022-05-18  175  	ether_addr_copy(vifs_entry->mac, mac);
1c99f6652d3fbb Sascha Hauer 2022-05-18  176  	list_add_tail(&vifs_entry->list, &iter_stas->list);
1c99f6652d3fbb Sascha Hauer 2022-05-18  177  }
1c99f6652d3fbb Sascha Hauer 2022-05-18  178  

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