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mwifiex: don't advertise IBSS features without FW support

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[ Upstream commit 6f21ab3046 ]

As it is, doing something like

  # iw phy phy0 interface add foobar type ibss

on a firmware that doesn't have ad-hoc support just yields failures of
HostCmd_CMD_SET_BSS_MODE, which happened to return a '-1' error code
(-EPERM? not really right...) and sometimes may even crash the firmware
along the way.

Let's parse the firmware capability flag while registering the wiphy, so
we don't allow attempting IBSS at all, and we get a proper -EOPNOTSUPP
from nl80211 instead.

Fixes: e267e71e68 ("mwifiex: Disable adhoc feature based on firmware capability")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Brian Norris
2019-02-14 16:31:29 -08:00
committed by Greg Kroah-Hartman
parent d323e59f58
commit 801b8d8c77
1 changed files with 7 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/wireless/marvell/mwifiex/cfg80211.c
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@@ -4282,11 +4282,13 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
wiphy->max_remain_on_channel_duration = 5000;
wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC) |
BIT(NL80211_IFTYPE_P2P_CLIENT) |
BIT(NL80211_IFTYPE_P2P_GO) |
BIT(NL80211_IFTYPE_AP);
if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
if (adapter->config_bands & BAND_A)
wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
@@ -4346,11 +4348,13 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
wiphy->features |= NL80211_FEATURE_HT_IBSS |
NL80211_FEATURE_INACTIVITY_TIMER |
wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER |
NL80211_FEATURE_LOW_PRIORITY_SCAN |
NL80211_FEATURE_NEED_OBSS_SCAN;
if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
wiphy->features |= NL80211_FEATURE_HT_IBSS;
if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info))
wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |