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cfg80211: treat 6 GHz channels as valid regardless of capability

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If a 6 GHz channel exists, then we can probably safely assume that
the device actually supports it, and then it should support most
bandwidths.

This will probably need to be extended to check the interface type
and then dig into the HE capabilities for that though, to have the
correct bandwidth check.

Change-Id: I77ea0ba56f4da1fa9f25baf5f44e0fe59c70e7c5
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Git-commit: ba8f6a037f790147438173029799f54c9d3065f2
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Visweswara Tanuku <vtanuku@codeaurora.org>
This commit is contained in:
Visweswara Tanuku 2020-07-15 13:03:53 +05:30 committed by Gerrit - the friendly Code Review server
parent d02dc74b58
commit 886fca85ed
1 changed files with 17 additions and 6 deletions
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23
net/wireless/chan.c
View file

@ -6,6 +6,7 @@
*
* Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright 2018-2020 Intel Corporation
*/
#include <linux/export.h>
@ -910,14 +911,18 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
width = 10;
break;
case NL80211_CHAN_WIDTH_20:
if (!ht_cap->ht_supported)
if (!ht_cap->ht_supported &&
chandef->chan->band != NL80211_BAND_6GHZ)
return false;
/* fall through */
case NL80211_CHAN_WIDTH_20_NOHT:
prohibited_flags |= IEEE80211_CHAN_NO_20MHZ;
width = 20;
break;
case NL80211_CHAN_WIDTH_40:
width = 40;
if (chandef->chan->band == NL80211_BAND_6GHZ)
break;
if (!ht_cap->ht_supported)
return false;
if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
@ -932,23 +937,29 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
break;
case NL80211_CHAN_WIDTH_80P80:
cap = vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK;
if (cap != IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ)
if (chandef->chan->band != NL80211_BAND_6GHZ &&
cap != IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ)
return false;
/* fall through */
case NL80211_CHAN_WIDTH_80:
if (!vht_cap->vht_supported)
return false;
prohibited_flags |= IEEE80211_CHAN_NO_80MHZ;
width = 80;
if (chandef->chan->band == NL80211_BAND_6GHZ)
break;
if (!vht_cap->vht_supported)
return false;
break;
case NL80211_CHAN_WIDTH_160:
prohibited_flags |= IEEE80211_CHAN_NO_160MHZ;
width = 160;
if (chandef->chan->band == NL80211_BAND_6GHZ)
break;
if (!vht_cap->vht_supported)
return false;
cap = vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK;
if (cap != IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ &&
cap != IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ)
return false;
prohibited_flags |= IEEE80211_CHAN_NO_160MHZ;
width = 160;
break;
default:
WARN_ON_ONCE(1);