[PATCH wireless-next 1/2] wifi: cfg80211: expose cfg80211_chandef_get_width()

[Johannes Berg <johannes@xxxxxxxxxxxxxxxx>]

From: Johannes Berg <johannes.berg@xxxxxxxxx>

This can be just a trivial inline, to simplify some code.
Expose it, and also use it in util.c where it wasn't
previously available.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@xxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
 include/net/cfg80211.h | 11 +++++++++++
 net/wireless/chan.c    |  5 -----
 net/wireless/util.c    |  4 ++--
 3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 73f0e75cc814..efbd79c67be2 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1008,6 +1008,17 @@ cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1,
  */
 int nl80211_chan_width_to_mhz(enum nl80211_chan_width chan_width);
 
+/**
+ * cfg80211_chandef_get_width - return chandef width in MHz
+ * @c: chandef to return bandwidth for
+ * Return: channel width in MHz for the given chandef; note that it returns
+ *	80 for 80+80 configurations
+ */
+static inline int cfg80211_chandef_get_width(const struct cfg80211_chan_def *c)
+{
+	return nl80211_chan_width_to_mhz(c->width);
+}
+
 /**
  * cfg80211_chandef_valid - check if a channel definition is valid
  * @chandef: the channel definition to check
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 4cdb74a3f38c..193734b7f9dc 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -55,11 +55,6 @@ void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
 }
 EXPORT_SYMBOL(cfg80211_chandef_create);
 
-static int cfg80211_chandef_get_width(const struct cfg80211_chan_def *c)
-{
-	return nl80211_chan_width_to_mhz(c->width);
-}
-
 static u32 cfg80211_get_start_freq(const struct cfg80211_chan_def *chandef,
 				   u32 cf)
 {
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 60157943d351..ed868c0f7ca8 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -5,7 +5,7 @@
  * Copyright 2007-2009	Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
  * Copyright 2017	Intel Deutschland GmbH
- * Copyright (C) 2018-2023 Intel Corporation
+ * Copyright (C) 2018-2023, 2025 Intel Corporation
  */
 #include <linux/export.h>
 #include <linux/bitops.h>
@@ -2908,7 +2908,7 @@ bool cfg80211_radio_chandef_valid(const struct wiphy_radio *radio,
 	u32 freq, width;
 
 	freq = ieee80211_chandef_to_khz(chandef);
-	width = nl80211_chan_width_to_mhz(chandef->width);
+	width = cfg80211_chandef_get_width(chandef);
 	if (!ieee80211_radio_freq_range_valid(radio, freq, width))
 		return false;
 
-- 
2.48.1