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From e69b8feebe4d7d54f4bb422f94e5c6315f1389d2 Mon Sep 17 00:00:00 2001
From: Sasha Levin <sashal@kernel.org>
Date: Tue, 25 Mar 2025 14:31:23 -0700
Subject: wifi: mac80211: Add link iteration macro for link data
From: Muna Sinada <muna.sinada@oss.qualcomm.com>
[ Upstream commit f61c7b3d442bef91dd432d468d08f72eadcc3209 ]
Currently before iterating through valid links we are utilizing
open-coding when checking if vif valid_links is a non-zero value.
Add new macro, for_each_link_data(), which iterates through link_id
and checks if it is set on vif valid_links. If it is a valid link then
access link data for that link id.
Signed-off-by: Muna Sinada <muna.sinada@oss.qualcomm.com>
Link: https://patch.msgid.link/20250325213125.1509362-2-muna.sinada@oss.qualcomm.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Stable-dep-of: d87c3ca0f8f1 ("wifi: mac80211: finish link init before RCU publish")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/mac80211/ieee80211_i.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index bfe0514efca37..41e69e066b386 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1209,6 +1209,15 @@ struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
if ((_link = wiphy_dereference((local)->hw.wiphy, \
___sdata->link[___link_id])))
+#define for_each_link_data(sdata, __link) \
+ struct ieee80211_sub_if_data *__sdata = sdata; \
+ for (int __link_id = 0; \
+ __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \
+ if ((!(__sdata)->vif.valid_links || \
+ (__sdata)->vif.valid_links & BIT(__link_id)) && \
+ ((__link) = sdata_dereference((__sdata)->link[__link_id], \
+ (__sdata))))
+
static inline int
ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems,
struct cfg80211_rnr_elems *rnr_elems,
--
2.39.5
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