From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757338AbaFTVcO (ORCPT ); Fri, 20 Jun 2014 17:32:14 -0400 Received: from mail-lb0-f174.google.com ([209.85.217.174]:35782 "EHLO mail-lb0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754961AbaFTVcM (ORCPT ); Fri, 20 Jun 2014 17:32:12 -0400 From: Rasmus Villemoes To: Brett Rudley , Arend van Spriel Cc: linux-wireless@vger.kernel.org, brcm80211-dev-list@broadcom.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Rasmus Villemoes Subject: [PATCH] net/wireless/brcm80211/brcmfmac: Make return type reflect actual semantics Date: Fri, 20 Jun 2014 23:32:03 +0200 Message-Id: <1403299923-21533-1-git-send-email-linux@rasmusvillemoes.dk> X-Mailer: git-send-email 1.7.10.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Applying ++ to a bool is equivalent to setting it true, regardless of its initial value (bools are not uint1_t). Hence the function wl_get_vif_state_all can only ever return true/false. The only in-tree caller uses its return value as a boolean. So update its return type, and since the list traversal and bit testing have no side effects, just return true immediately. Signed-off-by: Rasmus Villemoes --- Notes: Alternatively, if the function is supposed to return a count, the one-line fix would be - bool result = 0; + u32 result = 0; drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 7 +++---- drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h | 2 +- 2 files changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index d8fa276..ec5f8c5 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -5625,16 +5625,15 @@ enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp) return wdev->iftype; } -u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state) +bool wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state) { struct brcmf_cfg80211_vif *vif; - bool result = 0; list_for_each_entry(vif, &cfg->vif_list, list) { if (test_bit(state, &vif->sme_state)) - result++; + return true; } - return result; + return false; } static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event, diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h index 283c525..c702e4e 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h @@ -477,7 +477,7 @@ const struct brcmf_tlv * brcmf_parse_tlvs(const void *buf, int buflen, uint key); u16 channel_to_chanspec(struct brcmu_d11inf *d11inf, struct ieee80211_channel *ch); -u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state); +bool wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state); void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg, struct brcmf_cfg80211_vif *vif); bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg); -- 1.9.2