From: Julia Lawall <julia@xxxxxxx> The region set by the call to memset is immediately overwritten by the subsequent call to memcpy. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e1,e2,e3,e4; @@ - memset(e1,e2,e3); memcpy(e1,e4,e3); // </smpl> Signed-off-by: Julia Lawall <julia@xxxxxxx> --- drivers/staging/rt2860/sta/assoc.c | 1 - drivers/staging/rt2860/sta_ioctl.c | 1 - drivers/staging/rtl8192su/r819xU_cmdpkt.c | 1 - drivers/staging/rtl8192u/r819xU_cmdpkt.c | 1 - drivers/staging/vt6655/iwctl.c | 2 -- drivers/staging/vt6656/iwctl.c | 2 -- 6 files changed, 8 deletions(-) diff -u -p a/drivers/staging/rt2860/sta/assoc.c b/drivers/staging/rt2860/sta/assoc.c --- a/drivers/staging/rt2860/sta/assoc.c +++ b/drivers/staging/rt2860/sta/assoc.c @@ -1596,7 +1596,6 @@ BOOLEAN StaAddMacTableEntry(struct rt_rt union iwreq_data wrqu; wext_notify_event_assoc(pAd); - memset(wrqu.ap_addr.sa_data, 0, MAC_ADDR_LEN); memcpy(wrqu.ap_addr.sa_data, pAd->MlmeAux.Bssid, MAC_ADDR_LEN); wireless_send_event(pAd->net_dev, SIOCGIWAP, &wrqu, NULL); diff -u -p a/drivers/staging/rt2860/sta_ioctl.c b/drivers/staging/rt2860/sta_ioctl.c --- a/drivers/staging/rt2860/sta_ioctl.c +++ b/drivers/staging/rt2860/sta_ioctl.c @@ -608,7 +608,6 @@ int rt_ioctl_siwap(struct net_device *de /* Prevent to connect AP again in STAMlmePeriodicExec */ pAdapter->MlmeAux.AutoReconnectSsidLen = 32; - memset(Bssid, 0, MAC_ADDR_LEN); memcpy(Bssid, ap_addr->sa_data, MAC_ADDR_LEN); MlmeEnqueue(pAdapter, MLME_CNTL_STATE_MACHINE, diff -u -p a/drivers/staging/rtl8192su/r819xU_cmdpkt.c b/drivers/staging/rtl8192su/r819xU_cmdpkt.c --- a/drivers/staging/rtl8192su/r819xU_cmdpkt.c +++ b/drivers/staging/rtl8192su/r819xU_cmdpkt.c @@ -63,7 +63,6 @@ SendTxCommandPacket( tcb_desc->bLastIniPkt = 0; skb_reserve(skb, USB_HWDESC_HEADER_LEN); ptr_buf = skb_put(skb, DataLen); - memset(ptr_buf,0,DataLen); memcpy(ptr_buf,pData,DataLen); tcb_desc->txbuf_size= (u16)DataLen; diff -u -p a/drivers/staging/rtl8192u/r819xU_cmdpkt.c b/drivers/staging/rtl8192u/r819xU_cmdpkt.c --- a/drivers/staging/rtl8192u/r819xU_cmdpkt.c +++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.c @@ -63,7 +63,6 @@ SendTxCommandPacket( tcb_desc->bLastIniPkt = 0; skb_reserve(skb, USB_HWDESC_HEADER_LEN); ptr_buf = skb_put(skb, DataLen); - memset(ptr_buf,0,DataLen); memcpy(ptr_buf,pData,DataLen); tcb_desc->txbuf_size= (u16)DataLen; diff -u -p a/drivers/staging/vt6655/iwctl.c b/drivers/staging/vt6655/iwctl.c --- a/drivers/staging/vt6655/iwctl.c +++ b/drivers/staging/vt6655/iwctl.c @@ -699,7 +699,6 @@ if (pMgmt->eScanState == WMAC_IS_SCANNI if (wrq->sa_family != ARPHRD_ETHER) rc = -EINVAL; else { - memset(pMgmt->abyDesireBSSID, 0xFF, 6); memcpy(pMgmt->abyDesireBSSID, wrq->sa_data, 6); //2008-0409-05, <Add> by Einsn Liu if((pDevice->bLinkPass == TRUE) && @@ -889,7 +888,6 @@ if (pMgmt->eScanState == WMAC_IS_SCANNI BYTE abyTmpDesireSSID[WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1]; UINT ii , uSameBssidNum=0; - memset(abyTmpDesireSSID,0,sizeof(abyTmpDesireSSID)); memcpy(abyTmpDesireSSID,pMgmt->abyDesireSSID,sizeof(abyTmpDesireSSID)); pCurr = BSSpSearchBSSList(pDevice, NULL, diff -u -p a/drivers/staging/vt6656/iwctl.c b/drivers/staging/vt6656/iwctl.c --- a/drivers/staging/vt6656/iwctl.c +++ b/drivers/staging/vt6656/iwctl.c @@ -758,7 +758,6 @@ int iwctl_siwap(struct net_device *dev, if (wrq->sa_family != ARPHRD_ETHER) rc = -EINVAL; else { - memset(pMgmt->abyDesireBSSID, 0xFF, 6); memcpy(pMgmt->abyDesireBSSID, wrq->sa_data, 6); //mike :add @@ -936,7 +935,6 @@ int iwctl_siwessid(struct net_device *de BYTE abyTmpDesireSSID[WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1]; UINT ii , uSameBssidNum=0; - memset(abyTmpDesireSSID,0,sizeof(abyTmpDesireSSID)); memcpy(abyTmpDesireSSID,pMgmt->abyDesireSSID,sizeof(abyTmpDesireSSID)); pCurr = BSSpSearchBSSList(pDevice, NULL, _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
