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Message-ID: <20231017025358.1773598-4-Jun.Ma2@amd.com>
Date: Tue, 17 Oct 2023 10:53:52 +0800
From: Ma Jun <Jun.Ma2@....com>
To: <amd-gfx@...ts.freedesktop.org>, <lenb@...nel.org>,
<johannes@...solutions.net>, <davem@...emloft.net>,
<edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
<alexander.deucher@....com>, <Lijo.Lazar@....com>,
<mario.limonciello@....com>
CC: <majun@....com>, <netdev@...r.kernel.org>,
<linux-wireless@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-doc@...r.kernel.org>, <platform-driver-x86@...r.kernel.org>,
Evan Quan <quanliangl@...mail.com>, Ma Jun <Jun.Ma2@....com>
Subject: [PATCH v12 3/9] cfg80211: expose nl80211_chan_width_to_mhz for wide sharing
From: Evan Quan <quanliangl@...mail.com>
The newly added WBRF feature needs this interface for channel
width calculation.
Signed-off-by: Ma Jun <Jun.Ma2@....com>
Signed-off-by: Evan Quan <quanliangl@...mail.com>
--
v8->v9:
- correct typo(Mhz -> MHz) (Johnson)
---
include/net/cfg80211.h | 8 ++++++++
net/wireless/chan.c | 3 ++-
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index d6fa7c8767ad..026d91083f37 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -923,6 +923,14 @@ const struct cfg80211_chan_def *
cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1,
const struct cfg80211_chan_def *chandef2);
+/**
+ * nl80211_chan_width_to_mhz - get the channel width in MHz
+ * @chan_width: the channel width from &enum nl80211_chan_width
+ * Return: channel width in MHz if the chan_width from &enum nl80211_chan_width
+ * is valid. -1 otherwise.
+ */
+int nl80211_chan_width_to_mhz(enum nl80211_chan_width chan_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 0b7e81db383d..227db04eac42 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -141,7 +141,7 @@ static bool cfg80211_edmg_chandef_valid(const struct cfg80211_chan_def *chandef)
return true;
}
-static int nl80211_chan_width_to_mhz(enum nl80211_chan_width chan_width)
+int nl80211_chan_width_to_mhz(enum nl80211_chan_width chan_width)
{
int mhz;
@@ -190,6 +190,7 @@ static int nl80211_chan_width_to_mhz(enum nl80211_chan_width chan_width)
}
return mhz;
}
+EXPORT_SYMBOL(nl80211_chan_width_to_mhz);
static int cfg80211_chandef_get_width(const struct cfg80211_chan_def *c)
{
--
2.34.1
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