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authorMatthias Schiffer <mschiffer@universe-factory.net>2018-01-31 13:42:23 +0100
committerMatthias Schiffer <mschiffer@universe-factory.net>2018-01-31 13:42:23 +0100
commitbf1032d71fcb00924fa7bcd0e310725e28fb74e3 (patch)
treec5a2932267e0e174cc7cb7e5a22fe4dc7bf6cd68 /package/kernel/mac80211/patches
parent352c74fcb416b98e2dd44be3881fe5a48be0e71d (diff)
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mac80211: replace revert for 11s compatiblity with upstream fix
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Diffstat (limited to 'package/kernel/mac80211/patches')
-rw-r--r--package/kernel/mac80211/patches/324-Revert-wireless-set-correct-mandatory-rate-flags.patch60
-rw-r--r--package/kernel/mac80211/patches/324-cfg80211-use-only-1Mbps-for-basic-rates-in-mesh.patch55
2 files changed, 55 insertions, 60 deletions
diff --git a/package/kernel/mac80211/patches/324-Revert-wireless-set-correct-mandatory-rate-flags.patch b/package/kernel/mac80211/patches/324-Revert-wireless-set-correct-mandatory-rate-flags.patch
deleted file mode 100644
index 2ae9b7df01..0000000000
--- a/package/kernel/mac80211/patches/324-Revert-wireless-set-correct-mandatory-rate-flags.patch
+++ /dev/null
@@ -1,60 +0,0 @@
-From: Matthias Schiffer <mschiffer@universe-factory.net>
-Date: Fri, 26 Jan 2018 23:23:37 +0100
-Subject: [PATCH] Revert "wireless: set correct mandatory rate flags"
-
-This reverts commit 1bd773c077deeeb2d9ced1fdb6d846169b8e7e4a.
----
- net/wireless/util.c | 30 ++++++++++++++++--------------
- 1 file changed, 16 insertions(+), 14 deletions(-)
-
-diff --git a/net/wireless/util.c b/net/wireless/util.c
-index c69160694b6c..2bb37231c8fe 100644
---- a/net/wireless/util.c
-+++ b/net/wireless/util.c
-@@ -157,30 +157,32 @@ static void set_mandatory_flags_band(str
- case NL80211_BAND_2GHZ:
- want = 7;
- for (i = 0; i < sband->n_bitrates; i++) {
-- switch (sband->bitrates[i].bitrate) {
-- case 10:
-- case 20:
-- case 55:
-- case 110:
-+ if (sband->bitrates[i].bitrate == 10) {
- sband->bitrates[i].flags |=
- IEEE80211_RATE_MANDATORY_B |
- IEEE80211_RATE_MANDATORY_G;
- want--;
-- break;
-- case 60:
-- case 120:
-- case 240:
-+ }
-+
-+ if (sband->bitrates[i].bitrate == 20 ||
-+ sband->bitrates[i].bitrate == 55 ||
-+ sband->bitrates[i].bitrate == 110 ||
-+ sband->bitrates[i].bitrate == 60 ||
-+ sband->bitrates[i].bitrate == 120 ||
-+ sband->bitrates[i].bitrate == 240) {
- sband->bitrates[i].flags |=
- IEEE80211_RATE_MANDATORY_G;
- want--;
-- /* fall through */
-- default:
-+ }
-+
-+ if (sband->bitrates[i].bitrate != 10 &&
-+ sband->bitrates[i].bitrate != 20 &&
-+ sband->bitrates[i].bitrate != 55 &&
-+ sband->bitrates[i].bitrate != 110)
- sband->bitrates[i].flags |=
- IEEE80211_RATE_ERP_G;
-- break;
-- }
- }
-- WARN_ON(want != 0 && want != 3);
-+ WARN_ON(want != 0 && want != 3 && want != 6);
- break;
- case NL80211_BAND_60GHZ:
- /* check for mandatory HT MCS 1..4 */
diff --git a/package/kernel/mac80211/patches/324-cfg80211-use-only-1Mbps-for-basic-rates-in-mesh.patch b/package/kernel/mac80211/patches/324-cfg80211-use-only-1Mbps-for-basic-rates-in-mesh.patch
new file mode 100644
index 0000000000..bc4174e4c2
--- /dev/null
+++ b/package/kernel/mac80211/patches/324-cfg80211-use-only-1Mbps-for-basic-rates-in-mesh.patch
@@ -0,0 +1,55 @@
+From: Johannes Berg <johannes.berg@intel.com>
+Date: Tue, 30 Jan 2018 13:17:38 +0100
+Subject: [PATCH] cfg80211: use only 1Mbps for basic rates in mesh
+
+Mesh used to use the mandatory rates as basic rates, but we got
+the calculation of mandatory rates wrong until some time ago.
+Fix this this broke interoperability with older versions since
+now more basic rates are required, and thus the MBSS isn't the
+same and the network stops working.
+
+Fix this by simply using only 1Mbps as the basic rate in 2.4GHz.
+Since the changed mandatory rates only affected 2.4GHz, this is
+all we need to make it work again.
+
+Reported-and-tested-by: Matthias Schiffer <mschiffer@universe-factory.net>
+Fixes: 1bd773c077de ("wireless: set correct mandatory rate flags")
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+ net/wireless/mesh.c | 25 ++++++++++++++++++++++---
+ 1 file changed, 22 insertions(+), 3 deletions(-)
+
+--- a/net/wireless/mesh.c
++++ b/net/wireless/mesh.c
+@@ -169,9 +169,28 @@ int __cfg80211_join_mesh(struct cfg80211
+ enum nl80211_bss_scan_width scan_width;
+ struct ieee80211_supported_band *sband =
+ rdev->wiphy.bands[setup->chandef.chan->band];
+- scan_width = cfg80211_chandef_to_scan_width(&setup->chandef);
+- setup->basic_rates = ieee80211_mandatory_rates(sband,
+- scan_width);
++
++ if (setup->chandef.chan->band == NL80211_BAND_2GHZ) {
++ int i;
++
++ /*
++ * Older versions selected the mandatory rates for
++ * 2.4 GHz as well, but were broken in that only
++ * 1 Mbps was regarded as a mandatory rate. Keep
++ * using just 1 Mbps as the default basic rate for
++ * mesh to be interoperable with older versions.
++ */
++ for (i = 0; i < sband->n_bitrates; i++) {
++ if (sband->bitrates[i].bitrate == 10) {
++ setup->basic_rates = BIT(i);
++ break;
++ }
++ }
++ } else {
++ scan_width = cfg80211_chandef_to_scan_width(&setup->chandef);
++ setup->basic_rates = ieee80211_mandatory_rates(sband,
++ scan_width);
++ }
+ }
+
+ err = cfg80211_chandef_dfs_required(&rdev->wiphy,