diff options
| author | David S. Miller <davem@davemloft.net> | 2020-09-21 14:55:09 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-21 14:55:09 -0700 |
| commit | ae4dd9a8c21790b3a5eea81f8a56b3743c6d74cc (patch) | |
| tree | bc9d5c8d6db2ecfdfef4ae1c82d75310e789238e /net/wireless/util.c | |
| parent | 3ba6baf64b9a967d731b9c93e3dcd64bd82db83d (diff) | |
| parent | 7fba53ebb5b2d89d95b697f4c42c73c6fb7ba0c6 (diff) | |
Merge tag 'mac80211-next-for-net-next-2020-09-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
This time we have:
* some AP-side infrastructure for FILS discovery and
unsolicited probe resonses
* a major rework of the encapsulation/header conversion
offload from Felix, to fit better with e.g. AP_VLAN
interfaces
* performance fix for VHT A-MPDU size, don't limit to HT
* some initial patches for S1G (sub 1 GHz) support, more
will come in this area
* minor cleanups
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/wireless/util.c')
| -rw-r--r-- | net/wireless/util.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c index 4a9ff9ef513f..ac2bb1a80f2b 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -111,6 +111,33 @@ u32 ieee80211_channel_to_freq_khz(int chan, enum nl80211_band band) } EXPORT_SYMBOL(ieee80211_channel_to_freq_khz); +enum nl80211_chan_width +ieee80211_s1g_channel_width(const struct ieee80211_channel *chan) +{ + if (WARN_ON(!chan || chan->band != NL80211_BAND_S1GHZ)) + return NL80211_CHAN_WIDTH_20_NOHT; + + /*S1G defines a single allowed channel width per channel. + * Extract that width here. + */ + if (chan->flags & IEEE80211_CHAN_1MHZ) + return NL80211_CHAN_WIDTH_1; + else if (chan->flags & IEEE80211_CHAN_2MHZ) + return NL80211_CHAN_WIDTH_2; + else if (chan->flags & IEEE80211_CHAN_4MHZ) + return NL80211_CHAN_WIDTH_4; + else if (chan->flags & IEEE80211_CHAN_8MHZ) + return NL80211_CHAN_WIDTH_8; + else if (chan->flags & IEEE80211_CHAN_16MHZ) + return NL80211_CHAN_WIDTH_16; + + pr_err("unknown channel width for channel at %dKHz?\n", + ieee80211_channel_to_khz(chan)); + + return NL80211_CHAN_WIDTH_1; +} +EXPORT_SYMBOL(ieee80211_s1g_channel_width); + int ieee80211_freq_khz_to_channel(u32 freq) { /* TODO: just handle MHz for now */ @@ -399,6 +426,11 @@ unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc) { unsigned int hdrlen = 24; + if (ieee80211_is_ext(fc)) { + hdrlen = 4; + goto out; + } + if (ieee80211_is_data(fc)) { if (ieee80211_has_a4(fc)) hdrlen = 30; |