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Re: [PATCH v2] net/wireless/brcm80211/brcmfmac: Make return type and name reflect actual semantics

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On 06/22/14 00:55, Rasmus Villemoes wrote:
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. Its return value tells if any vif is up,

Now I may be really nit-picking, but the return value if any vif is *in the specified state*.

Regards,
Arend

so also rename it to brcmf_get_vif_state_any.

Reviewed-by: Arend van Spriel<arend@xxxxxxxxxxxx>
Signed-off-by: Rasmus Villemoes<linux@xxxxxxxxxxxxxxxxxx>
---

Notes:
     v2: Rename wl_get_vif_state_all =>  brcmf_get_vif_state_any as
         requested by Arend.

  drivers/net/wireless/brcm80211/brcmfmac/p2p.c         | 2 +-
  drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 7 +++----
  drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h | 2 +-
  3 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
index f3445ac..588fdbd 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
@@ -708,7 +708,7 @@ static s32 brcmf_p2p_escan(struct brcmf_p2p_info *p2p, u32 num_chans,
  		active = P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS;
  	else if (num_chans == AF_PEER_SEARCH_CNT)
  		active = P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS;
-	else if (wl_get_vif_state_all(p2p->cfg, BRCMF_VIF_STATUS_CONNECTED))
+	else if (brcmf_get_vif_state_any(p2p->cfg, BRCMF_VIF_STATUS_CONNECTED))
  		active = -1;
  	else
  		active = P2PAPI_SCAN_DWELL_TIME_MS;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index d8fa276..93b1809 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 brcmf_get_vif_state_any(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..f9fb109 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 brcmf_get_vif_state_any(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);

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