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01 Dec 2021 12:52:46 -0800 Received: from kbuild by 9e1e9f9b3bcb with local (Exim 4.92) (envelope-from ) id 1msWar-000FNs-Ch; Wed, 01 Dec 2021 20:52:45 +0000 Date: Thu, 2 Dec 2021 04:51:48 +0800 From: kernel test robot To: Loic Poulain Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Kalle Valo Subject: drivers/net/wireless/ath/wcn36xx/smd.c:943:33: sparse: sparse: cast truncates bits from constant value (780 becomes 80) Message-ID: <202112020449.FNKDxUVp-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 58e1100fdc5990b0cc0d4beaf2562a92e621ac7d commit: d707f812bb0513ea0030d0c9fe2a456bae5a4583 wcn36xx: Channel list update before hardware scan date: 5 weeks ago config: riscv-randconfig-s031-20211201 (https://download.01.org/0day-ci/archive/20211202/202112020449.FNKDxUVp-lkp@intel.com/config) compiler: riscv32-linux-gcc (GCC) 11.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d707f812bb0513ea0030d0c9fe2a456bae5a4583 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout d707f812bb0513ea0030d0c9fe2a456bae5a4583 # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash drivers/net/wireless/ath/wcn36xx/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) >> drivers/net/wireless/ath/wcn36xx/smd.c:943:33: sparse: sparse: cast truncates bits from constant value (780 becomes 80) vim +943 drivers/net/wireless/ath/wcn36xx/smd.c 931 932 int wcn36xx_smd_update_channel_list(struct wcn36xx *wcn, struct cfg80211_scan_request *req) 933 { 934 struct wcn36xx_hal_update_channel_list_req_msg *msg_body; 935 int ret, i; 936 937 msg_body = kzalloc(sizeof(*msg_body), GFP_KERNEL); 938 if (!msg_body) 939 return -ENOMEM; 940 941 INIT_HAL_MSG((*msg_body), WCN36XX_HAL_UPDATE_CHANNEL_LIST_REQ); 942 > 943 msg_body->num_channel = min_t(u8, req->n_channels, sizeof(msg_body->channels)); 944 for (i = 0; i < msg_body->num_channel; i++) { 945 struct wcn36xx_hal_channel_param *param = &msg_body->channels[i]; 946 u32 min_power = WCN36XX_HAL_DEFAULT_MIN_POWER; 947 u32 ant_gain = WCN36XX_HAL_DEFAULT_ANT_GAIN; 948 949 param->mhz = req->channels[i]->center_freq; 950 param->band_center_freq1 = req->channels[i]->center_freq; 951 param->band_center_freq2 = 0; 952 953 if (req->channels[i]->flags & IEEE80211_CHAN_NO_IR) 954 param->channel_info |= WCN36XX_HAL_CHAN_INFO_FLAG_PASSIVE; 955 956 if (req->channels[i]->flags & IEEE80211_CHAN_RADAR) 957 param->channel_info |= WCN36XX_HAL_CHAN_INFO_FLAG_DFS; 958 959 if (req->channels[i]->band == NL80211_BAND_5GHZ) { 960 param->channel_info |= WCN36XX_HAL_CHAN_INFO_FLAG_HT; 961 param->channel_info |= WCN36XX_HAL_CHAN_INFO_FLAG_VHT; 962 param->channel_info |= WCN36XX_HAL_CHAN_INFO_PHY_11A; 963 } else { 964 param->channel_info |= WCN36XX_HAL_CHAN_INFO_PHY_11BG; 965 } 966 967 if (min_power > req->channels[i]->max_power) 968 min_power = req->channels[i]->max_power; 969 970 if (req->channels[i]->max_antenna_gain) 971 ant_gain = req->channels[i]->max_antenna_gain; 972 973 u32p_replace_bits(¶m->reg_info_1, min_power, 974 WCN36XX_HAL_CHAN_REG1_MIN_PWR_MASK); 975 u32p_replace_bits(¶m->reg_info_1, req->channels[i]->max_power, 976 WCN36XX_HAL_CHAN_REG1_MAX_PWR_MASK); 977 u32p_replace_bits(¶m->reg_info_1, req->channels[i]->max_reg_power, 978 WCN36XX_HAL_CHAN_REG1_REG_PWR_MASK); 979 u32p_replace_bits(¶m->reg_info_1, 0, 980 WCN36XX_HAL_CHAN_REG1_CLASS_ID_MASK); 981 u32p_replace_bits(¶m->reg_info_2, ant_gain, 982 WCN36XX_HAL_CHAN_REG2_ANT_GAIN_MASK); 983 984 wcn36xx_dbg(WCN36XX_DBG_HAL, 985 "%s: freq=%u, channel_info=%08x, reg_info1=%08x, reg_info2=%08x\n", 986 __func__, param->mhz, param->channel_info, param->reg_info_1, 987 param->reg_info_2); 988 } 989 990 mutex_lock(&wcn->hal_mutex); 991 992 PREPARE_HAL_BUF(wcn->hal_buf, (*msg_body)); 993 994 ret = wcn36xx_smd_send_and_wait(wcn, msg_body->header.len); 995 if (ret) { 996 wcn36xx_err("Sending hal_update_channel_list failed\n"); 997 goto out; 998 } 999 1000 ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len); 1001 if (ret) { 1002 wcn36xx_err("hal_update_channel_list response failed err=%d\n", ret); 1003 goto out; 1004 } 1005 1006 out: 1007 kfree(msg_body); 1008 mutex_unlock(&wcn->hal_mutex); 1009 return ret; 1010 } 1011 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org