Return-path: Received: from mail-lf0-f68.google.com ([209.85.215.68]:36826 "EHLO mail-lf0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754498AbcFGTKi (ORCPT ); Tue, 7 Jun 2016 15:10:38 -0400 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= To: Kalle Valo Cc: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= , Brett Rudley , Arend van Spriel , "Franky (Zhenhui) Lin" , Hante Meuleman , Pieter-Paul Giesberts , linux-wireless@vger.kernel.org (open list:BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER), brcm80211-dev-list@broadcom.com (open list:BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER), netdev@vger.kernel.org (open list:NETWORKING DRIVERS), linux-kernel@vger.kernel.org (open list) Subject: [PATCH] brcmfmac: slightly simplify building interface combinations Date: Tue, 7 Jun 2016 21:10:18 +0200 Message-Id: <1465326626-365-1-git-send-email-zajec5@gmail.com> (sfid-20160607_211059_133911_8D14D3EE) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: This change reorders some operations in brcmf_setup_ifmodes in hope to make it simpler: 1) It allocates arrays right before filling them. This way it's easier to follow requested array length as it's immediately followed by code filling it. It's easier to check e.g. why we need 4 entries for P2P. Other than that it deduplicates some checks (e.g. for P2P). 2) It reorders code to first prepare limits and then define a new combo. Previously this was mixed (e.g. we were setting num of channels before preparing limits). 3) It modifies mbss code to use i variable just like other combos do. Signed-off-by: Rafał Miłecki --- .../broadcom/brcm80211/brcmfmac/cfg80211.c | 37 ++++++++++------------ 1 file changed, 16 insertions(+), 21 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index 4894eb7..33e682e 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -6300,29 +6300,15 @@ static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp) if (!combo) goto err; - c0_limits = kcalloc(p2p ? 3 : 2, sizeof(*c0_limits), GFP_KERNEL); - if (!c0_limits) - goto err; - - if (p2p) { - p2p_limits = kcalloc(4, sizeof(*p2p_limits), GFP_KERNEL); - if (!p2p_limits) - goto err; - } - - if (mbss) { - mbss_limits = kcalloc(1, sizeof(*mbss_limits), GFP_KERNEL); - if (!mbss_limits) - goto err; - } - wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP); c = 0; i = 0; - combo[c].num_different_channels = 1; + c0_limits = kcalloc(p2p ? 3 : 2, sizeof(*c0_limits), GFP_KERNEL); + if (!c0_limits) + goto err; c0_limits[i].max = 1; c0_limits[i++].types = BIT(NL80211_IFTYPE_STATION); if (p2p) { @@ -6340,6 +6326,7 @@ static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp) c0_limits[i].max = 1; c0_limits[i++].types = BIT(NL80211_IFTYPE_AP); } + combo[c].num_different_channels = 1; combo[c].max_interfaces = i; combo[c].n_limits = i; combo[c].limits = c0_limits; @@ -6347,7 +6334,9 @@ static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp) if (p2p) { c++; i = 0; - combo[c].num_different_channels = 1; + p2p_limits = kcalloc(4, sizeof(*p2p_limits), GFP_KERNEL); + if (!p2p_limits) + goto err; p2p_limits[i].max = 1; p2p_limits[i++].types = BIT(NL80211_IFTYPE_STATION); p2p_limits[i].max = 1; @@ -6356,6 +6345,7 @@ static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp) p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT); p2p_limits[i].max = 1; p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE); + combo[c].num_different_channels = 1; combo[c].max_interfaces = i; combo[c].n_limits = i; combo[c].limits = p2p_limits; @@ -6363,14 +6353,19 @@ static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp) if (mbss) { c++; + i = 0; + mbss_limits = kcalloc(1, sizeof(*mbss_limits), GFP_KERNEL); + if (!mbss_limits) + goto err; + mbss_limits[i].max = 4; + mbss_limits[i++].types = BIT(NL80211_IFTYPE_AP); combo[c].beacon_int_infra_match = true; combo[c].num_different_channels = 1; - mbss_limits[0].max = 4; - mbss_limits[0].types = BIT(NL80211_IFTYPE_AP); combo[c].max_interfaces = 4; - combo[c].n_limits = 1; + combo[c].n_limits = i; combo[c].limits = mbss_limits; } + wiphy->n_iface_combinations = n_combos; wiphy->iface_combinations = combo; return 0; -- 1.8.4.5