tree: https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git pending head: f39910e66f150e60eaceb8a61a59e2d289e0b881 commit: f39910e66f150e60eaceb8a61a59e2d289e0b881 [144/144] wcn36xx: Add support for Factory Test Mode (FTM) config: i386-randconfig-x017-201819 (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: git checkout f39910e66f150e60eaceb8a61a59e2d289e0b881 # save the attached .config to linux build tree make ARCH=i386
Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): drivers/net/wireless/ath/wcn36xx/testmode.c: In function 'wcn36xx_tm_cmd': >> drivers/net/wireless/ath/wcn36xx/testmode.c:122:5: warning: 'msg' may be >> used uninitialized in this function [-Wmaybe-uninitialized] if (rsp != msg) ^ drivers/net/wireless/ath/wcn36xx/testmode.c:48:22: note: 'msg' was declared here struct ftm_rsp_msg *msg, *rsp = NULL; ^~~ vim +/msg +122 drivers/net/wireless/ath/wcn36xx/testmode.c 42 43 static int wcn36xx_tm_cmd_ptt(struct wcn36xx *wcn, struct ieee80211_vif *vif, 44 struct nlattr *tb[]) 45 { 46 int ret = 0, buf_len; 47 void *buf; 48 struct ftm_rsp_msg *msg, *rsp = NULL; 49 struct sk_buff *skb; 50 51 if (!tb[WCN36XX_TM_ATTR_DATA]) { 52 ret = -EINVAL; 53 goto out; 54 } 55 56 buf = nla_data(tb[WCN36XX_TM_ATTR_DATA]); 57 buf_len = nla_len(tb[WCN36XX_TM_ATTR_DATA]); 58 msg = (struct ftm_rsp_msg *)buf; 59 60 wcn36xx_dbg(WCN36XX_DBG_TESTMODE, 61 "testmode cmd wmi msg_id 0x%04X msg_len %d buf %pK buf_len %d\n", 62 msg->msg_id, msg->msg_body_length, 63 buf, buf_len); 64 65 wcn36xx_dbg_dump(WCN36XX_DBG_TESTMODE_DUMP, "REQ ", buf, buf_len); 66 67 if (msg->msg_id == MSG_GET_BUILD_RELEASE_NUMBER) { 68 struct build_release_number *body = 69 (struct build_release_number *) 70 msg->msg_response; 71 72 body->drv_major = wcn->fw_major; 73 body->drv_minor = wcn->fw_minor; 74 body->drv_patch = wcn->fw_version; 75 body->drv_build = wcn->fw_revision; 76 body->ptt_max = 10; 77 body->ptt_min = 0; 78 79 rsp = msg; 80 rsp->resp_status = 0; 81 } else { 82 wcn36xx_dbg(WCN36XX_DBG_TESTMODE, 83 "PPT Request >> HAL size %d\n", 84 msg->msg_body_length); 85 86 msg->resp_status = wcn36xx_smd_process_ptt_msg(wcn, vif, msg, 87 msg->msg_body_length, (void *)(&rsp)); 88 89 wcn36xx_dbg(WCN36XX_DBG_TESTMODE, 90 "Response status = %d\n", 91 msg->resp_status); 92 if (rsp) 93 wcn36xx_dbg(WCN36XX_DBG_TESTMODE, 94 "PPT Response << HAL size %d\n", 95 rsp->msg_body_length); 96 } 97 98 if (!rsp) { 99 rsp = msg; 100 wcn36xx_warn("No response! Echoing request with response status %d\n", 101 rsp->resp_status); 102 } 103 wcn36xx_dbg_dump(WCN36XX_DBG_TESTMODE_DUMP, "RSP ", 104 rsp, rsp->msg_body_length); 105 106 skb = cfg80211_testmode_alloc_reply_skb(wcn->hw->wiphy, 107 nla_total_size(msg->msg_body_length)); 108 if (!skb) { 109 ret = -ENOMEM; 110 goto out; 111 } 112 113 ret = nla_put(skb, WCN36XX_TM_ATTR_DATA, rsp->msg_body_length, rsp); 114 if (ret) { 115 kfree_skb(skb); 116 goto out; 117 } 118 119 ret = cfg80211_testmode_reply(skb); 120 121 out: > 122 if (rsp != msg) 123 kfree(rsp); 124 125 return ret; 126 } 127 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
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