Return-path: Received: from mail-wm0-f54.google.com ([74.125.82.54]:35010 "EHLO mail-wm0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750712AbcBYAI7 (ORCPT ); Wed, 24 Feb 2016 19:08:59 -0500 Received: by mail-wm0-f54.google.com with SMTP id c200so5764346wme.0 for ; Wed, 24 Feb 2016 16:08:58 -0800 (PST) From: Andreas Fenkart To: linux-wireless@vger.kernel.org Cc: Amitkumar Karwar , Nishant Sarmukadam , Kalle Valo , Andreas Fenkart Subject: [PATCH 1/7] mwifiex: scan: simplify dereference of bss_desc fields Date: Thu, 25 Feb 2016 01:08:46 +0100 Message-Id: <1456358932-23114-2-git-send-email-afenkart@gmail.com> (sfid-20160225_010906_301606_AA8CF6E4) In-Reply-To: <1456358932-23114-1-git-send-email-afenkart@gmail.com> References: <1456358932-23114-1-git-send-email-afenkart@gmail.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: given this structure: struct foo { struct bar { int baz; } } these accesses are equivalent: (*(foo->bar)).baz foo->bar->baz Signed-off-by: Andreas Fenkart --- drivers/net/wireless/marvell/mwifiex/scan.c | 96 ++++++++++++++--------------- 1 file changed, 45 insertions(+), 51 deletions(-) diff --git a/drivers/net/wireless/marvell/mwifiex/scan.c b/drivers/net/wireless/marvell/mwifiex/scan.c index c20017c..43d7a92 100644 --- a/drivers/net/wireless/marvell/mwifiex/scan.c +++ b/drivers/net/wireless/marvell/mwifiex/scan.c @@ -121,8 +121,8 @@ mwifiex_is_rsn_oui_present(struct mwifiex_bssdescriptor *bss_desc, u32 cipher) struct ie_body *iebody; u8 ret = MWIFIEX_OUI_NOT_PRESENT; - if (((bss_desc->bcn_rsn_ie) && ((*(bss_desc->bcn_rsn_ie)). - ieee_hdr.element_id == WLAN_EID_RSN))) { + if (bss_desc->bcn_rsn_ie && + (bss_desc->bcn_rsn_ie->ieee_hdr.element_id == WLAN_EID_RSN)) { iebody = (struct ie_body *) (((u8 *) bss_desc->bcn_rsn_ie->data) + RSN_GTK_OUI_OFFSET); @@ -148,9 +148,9 @@ mwifiex_is_wpa_oui_present(struct mwifiex_bssdescriptor *bss_desc, u32 cipher) struct ie_body *iebody; u8 ret = MWIFIEX_OUI_NOT_PRESENT; - if (((bss_desc->bcn_wpa_ie) && - ((*(bss_desc->bcn_wpa_ie)).vend_hdr.element_id == - WLAN_EID_VENDOR_SPECIFIC))) { + if (bss_desc->bcn_wpa_ie && + (bss_desc->bcn_wpa_ie->vend_hdr.element_id == + WLAN_EID_VENDOR_SPECIFIC)) { iebody = (struct ie_body *) bss_desc->bcn_wpa_ie->data; oui = &mwifiex_wpa_oui[cipher][0]; ret = mwifiex_search_oui_in_ie(iebody, oui); @@ -181,8 +181,8 @@ mwifiex_is_bss_wapi(struct mwifiex_private *priv, { if (priv->sec_info.wapi_enabled && (bss_desc->bcn_wapi_ie && - ((*(bss_desc->bcn_wapi_ie)).ieee_hdr.element_id == - WLAN_EID_BSS_AC_ACCESS_DELAY))) { + (bss_desc->bcn_wapi_ie->ieee_hdr.element_id == + WLAN_EID_BSS_AC_ACCESS_DELAY))) { return true; } return false; @@ -197,12 +197,12 @@ mwifiex_is_bss_no_sec(struct mwifiex_private *priv, struct mwifiex_bssdescriptor *bss_desc) { if (!priv->sec_info.wep_enabled && !priv->sec_info.wpa_enabled && - !priv->sec_info.wpa2_enabled && ((!bss_desc->bcn_wpa_ie) || - ((*(bss_desc->bcn_wpa_ie)).vend_hdr.element_id != + !priv->sec_info.wpa2_enabled && + (!bss_desc->bcn_wpa_ie || + (bss_desc->bcn_wpa_ie->vend_hdr.element_id != WLAN_EID_VENDOR_SPECIFIC)) && - ((!bss_desc->bcn_rsn_ie) || - ((*(bss_desc->bcn_rsn_ie)).ieee_hdr.element_id != - WLAN_EID_RSN)) && + (!bss_desc->bcn_rsn_ie || + (bss_desc->bcn_rsn_ie->ieee_hdr.element_id != WLAN_EID_RSN)) && !priv->sec_info.encryption_mode && !bss_desc->privacy) { return true; } @@ -233,9 +233,10 @@ mwifiex_is_bss_wpa(struct mwifiex_private *priv, struct mwifiex_bssdescriptor *bss_desc) { if (!priv->sec_info.wep_enabled && priv->sec_info.wpa_enabled && - !priv->sec_info.wpa2_enabled && ((bss_desc->bcn_wpa_ie) && - ((*(bss_desc->bcn_wpa_ie)). - vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC)) + !priv->sec_info.wpa2_enabled && + (bss_desc->bcn_wpa_ie && + (bss_desc->bcn_wpa_ie->vend_hdr.element_id == + WLAN_EID_VENDOR_SPECIFIC)) /* * Privacy bit may NOT be set in some APs like * LinkSys WRT54G && bss_desc->privacy @@ -245,12 +246,10 @@ mwifiex_is_bss_wpa(struct mwifiex_private *priv, "info: %s: WPA:\t" "wpa_ie=%#x wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s\t" "EncMode=%#x privacy=%#x\n", __func__, - (bss_desc->bcn_wpa_ie) ? - (*bss_desc->bcn_wpa_ie). - vend_hdr.element_id : 0, - (bss_desc->bcn_rsn_ie) ? - (*bss_desc->bcn_rsn_ie). - ieee_hdr.element_id : 0, + bss_desc->bcn_wpa_ie ? + bss_desc->bcn_wpa_ie->vend_hdr.element_id : 0, + bss_desc->bcn_rsn_ie ? + bss_desc->bcn_rsn_ie->ieee_hdr.element_id : 0, (priv->sec_info.wep_enabled) ? "e" : "d", (priv->sec_info.wpa_enabled) ? "e" : "d", (priv->sec_info.wpa2_enabled) ? "e" : "d", @@ -269,11 +268,10 @@ static bool mwifiex_is_bss_wpa2(struct mwifiex_private *priv, struct mwifiex_bssdescriptor *bss_desc) { - if (!priv->sec_info.wep_enabled && - !priv->sec_info.wpa_enabled && + if (!priv->sec_info.wep_enabled && !priv->sec_info.wpa_enabled && priv->sec_info.wpa2_enabled && - ((bss_desc->bcn_rsn_ie) && - ((*(bss_desc->bcn_rsn_ie)).ieee_hdr.element_id == WLAN_EID_RSN))) { + (bss_desc->bcn_rsn_ie && + (bss_desc->bcn_rsn_ie->ieee_hdr.element_id == WLAN_EID_RSN))) { /* * Privacy bit may NOT be set in some APs like * LinkSys WRT54G && bss_desc->privacy @@ -282,12 +280,10 @@ mwifiex_is_bss_wpa2(struct mwifiex_private *priv, "info: %s: WPA2:\t" "wpa_ie=%#x wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s\t" "EncMode=%#x privacy=%#x\n", __func__, - (bss_desc->bcn_wpa_ie) ? - (*bss_desc->bcn_wpa_ie). - vend_hdr.element_id : 0, - (bss_desc->bcn_rsn_ie) ? - (*bss_desc->bcn_rsn_ie). - ieee_hdr.element_id : 0, + bss_desc->bcn_wpa_ie ? + bss_desc->bcn_wpa_ie->vend_hdr.element_id : 0, + bss_desc->bcn_rsn_ie ? + bss_desc->bcn_rsn_ie->ieee_hdr.element_id : 0, (priv->sec_info.wep_enabled) ? "e" : "d", (priv->sec_info.wpa_enabled) ? "e" : "d", (priv->sec_info.wpa2_enabled) ? "e" : "d", @@ -308,11 +304,11 @@ mwifiex_is_bss_adhoc_aes(struct mwifiex_private *priv, { if (!priv->sec_info.wep_enabled && !priv->sec_info.wpa_enabled && !priv->sec_info.wpa2_enabled && - ((!bss_desc->bcn_wpa_ie) || - ((*(bss_desc->bcn_wpa_ie)). - vend_hdr.element_id != WLAN_EID_VENDOR_SPECIFIC)) && - ((!bss_desc->bcn_rsn_ie) || - ((*(bss_desc->bcn_rsn_ie)).ieee_hdr.element_id != WLAN_EID_RSN)) && + (!bss_desc->bcn_wpa_ie || + (bss_desc->bcn_wpa_ie->vend_hdr.element_id != + WLAN_EID_VENDOR_SPECIFIC)) && + (!bss_desc->bcn_rsn_ie || + (bss_desc->bcn_rsn_ie->ieee_hdr.element_id != WLAN_EID_RSN)) && !priv->sec_info.encryption_mode && bss_desc->privacy) { return true; } @@ -329,23 +325,21 @@ mwifiex_is_bss_dynamic_wep(struct mwifiex_private *priv, { if (!priv->sec_info.wep_enabled && !priv->sec_info.wpa_enabled && !priv->sec_info.wpa2_enabled && - ((!bss_desc->bcn_wpa_ie) || - ((*(bss_desc->bcn_wpa_ie)). - vend_hdr.element_id != WLAN_EID_VENDOR_SPECIFIC)) && - ((!bss_desc->bcn_rsn_ie) || - ((*(bss_desc->bcn_rsn_ie)).ieee_hdr.element_id != WLAN_EID_RSN)) && + (!bss_desc->bcn_wpa_ie || + (bss_desc->bcn_wpa_ie->vend_hdr.element_id != + WLAN_EID_VENDOR_SPECIFIC)) && + (!bss_desc->bcn_rsn_ie || + (bss_desc->bcn_rsn_ie->ieee_hdr.element_id != WLAN_EID_RSN)) && priv->sec_info.encryption_mode && bss_desc->privacy) { mwifiex_dbg(priv->adapter, INFO, "info: %s: dynamic\t" "WEP: wpa_ie=%#x wpa2_ie=%#x\t" "EncMode=%#x privacy=%#x\n", __func__, - (bss_desc->bcn_wpa_ie) ? - (*bss_desc->bcn_wpa_ie). - vend_hdr.element_id : 0, - (bss_desc->bcn_rsn_ie) ? - (*bss_desc->bcn_rsn_ie). - ieee_hdr.element_id : 0, + bss_desc->bcn_wpa_ie ? + bss_desc->bcn_wpa_ie->vend_hdr.element_id : 0, + bss_desc->bcn_rsn_ie ? + bss_desc->bcn_rsn_ie->ieee_hdr.element_id : 0, priv->sec_info.encryption_mode, bss_desc->privacy); return true; @@ -464,10 +458,10 @@ mwifiex_is_network_compatible(struct mwifiex_private *priv, "info: %s: failed: wpa_ie=%#x wpa2_ie=%#x WEP=%s\t" "WPA=%s WPA2=%s EncMode=%#x privacy=%#x\n", __func__, - (bss_desc->bcn_wpa_ie) ? - (*bss_desc->bcn_wpa_ie).vend_hdr.element_id : 0, - (bss_desc->bcn_rsn_ie) ? - (*bss_desc->bcn_rsn_ie).ieee_hdr.element_id : 0, + bss_desc->bcn_wpa_ie ? + bss_desc->bcn_wpa_ie->vend_hdr.element_id : 0, + bss_desc->bcn_rsn_ie ? + bss_desc->bcn_rsn_ie->ieee_hdr.element_id : 0, (priv->sec_info.wep_enabled) ? "e" : "d", (priv->sec_info.wpa_enabled) ? "e" : "d", (priv->sec_info.wpa2_enabled) ? "e" : "d", -- 2.7.0