staging: rtl8723bs: remove memset before memcpy
authorHimanshu Jha <himanshujha199640@gmail.com>
Sun, 27 Aug 2017 20:13:31 +0000 (01:43 +0530)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 28 Aug 2017 08:16:57 +0000 (10:16 +0200)
calling memcpy immediately after memset with the same region of memory
makes memset redundant.

Build successfully.

Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/rtl8723bs/core/rtw_ioctl_set.c
drivers/staging/rtl8723bs/core/rtw_mlme.c
drivers/staging/rtl8723bs/os_dep/mlme_linux.c

index e0793f8d329d24e2a93e57ead30e845263b63930..d815a693fa648789d25c7d1b338e5a2bba503010 100644 (file)
@@ -127,7 +127,6 @@ u8 rtw_do_join(struct adapter *padapter)
 
                                pibss = padapter->registrypriv.dev_network.MacAddress;
 
-                               memset(&pdev_network->Ssid, 0, sizeof(struct ndis_802_11_ssid));
                                memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
 
                                rtw_update_registrypriv_dev_network(padapter);
index 9f44dd0204678acbdb0e8a5b6d3f77233726d644..6b778206a1a36ffc12e040a1922126007802052a 100644 (file)
@@ -922,7 +922,6 @@ void rtw_surveydone_event_callback(struct adapter   *adapter, u8 *pbuf)
 
                                        RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("switching to adhoc master\n"));
 
-                                       memset(&pdev_network->Ssid, 0, sizeof(struct ndis_802_11_ssid));
                                        memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
 
                                        rtw_update_registrypriv_dev_network(adapter);
@@ -1774,7 +1773,6 @@ void rtw_stadel_event_callback(struct adapter *adapter, u8 *pbuf)
 
                        memcpy(pdev_network, &tgt_network->network, get_wlan_bssid_ex_sz(&tgt_network->network));
 
-                       memset(&pdev_network->Ssid, 0, sizeof(struct ndis_802_11_ssid));
                        memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
 
                        rtw_update_registrypriv_dev_network(adapter);
index 46315d1a82f7ef332c824c83cebac8160f56e92c..3e29df075c847bc2ea945b361f92323a6584c074 100644 (file)
@@ -91,8 +91,6 @@ void rtw_reset_securitypriv(struct adapter *adapter)
                /*  Backup the btkip_countermeasure information. */
                /*  When the countermeasure is trigger, the driver have to disconnect with AP for 60 seconds. */
 
-               memset(&backupPMKIDList[ 0 ], 0x00, sizeof(RT_PMKID_LIST) * NUM_PMKID_CACHE);
-
                memcpy(&backupPMKIDList[ 0 ], &adapter->securitypriv.PMKIDList[ 0 ], sizeof(RT_PMKID_LIST) * NUM_PMKID_CACHE);
                backupPMKIDIndex = adapter->securitypriv.PMKIDIndex;
                backupTKIPCountermeasure = adapter->securitypriv.btkip_countermeasure;