diff options
| author | Arend van Spriel <arend@broadcom.com> | 2015-08-20 22:06:05 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2015-08-25 15:32:28 +0300 |
| commit | 39504a2d21adde4748b5ce8c057e09edf3fe17bb (patch) | |
| tree | d72e56c7c3977c59974d8ff2ae27f4d2f9d1161a /drivers/net/wireless | |
| parent | 2bb66a8183d6396babde51e558b1ab35733f275f (diff) | |
brcmfmac: make use of cfg80211_check_combinations()
Use cfg80211_check_combinations() so we can bail out early when an
interface add or change results in an invalid combination.
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c index 26e1fe8c132c..a293275c1b0b 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c @@ -469,6 +469,36 @@ brcmf_find_wpsie(const u8 *parse, u32 len) return NULL; } +static int brcmf_vif_change_validate(struct brcmf_cfg80211_info *cfg, + struct brcmf_cfg80211_vif *vif, + enum nl80211_iftype new_type) +{ + int iftype_num[NUM_NL80211_IFTYPES]; + struct brcmf_cfg80211_vif *pos; + + memset(&iftype_num[0], 0, sizeof(iftype_num)); + list_for_each_entry(pos, &cfg->vif_list, list) + if (pos == vif) + iftype_num[new_type]++; + else + iftype_num[pos->wdev.iftype]++; + + return cfg80211_check_combinations(cfg->wiphy, 1, 0, iftype_num); +} + +static int brcmf_vif_add_validate(struct brcmf_cfg80211_info *cfg, + enum nl80211_iftype new_type) +{ + int iftype_num[NUM_NL80211_IFTYPES]; + struct brcmf_cfg80211_vif *pos; + + memset(&iftype_num[0], 0, sizeof(iftype_num)); + list_for_each_entry(pos, &cfg->vif_list, list) + iftype_num[pos->wdev.iftype]++; + + iftype_num[new_type]++; + return cfg80211_check_combinations(cfg->wiphy, 1, 0, iftype_num); +} static void convert_key_from_CPU(struct brcmf_wsec_key *key, struct brcmf_wsec_key_le *key_le) @@ -663,8 +693,14 @@ static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy, struct vif_params *params) { struct wireless_dev *wdev; + int err; brcmf_dbg(TRACE, "enter: %s type %d\n", name, type); + err = brcmf_vif_add_validate(wiphy_to_cfg(wiphy), type); + if (err) { + brcmf_err("iface validation failed: err=%d\n", err); + return ERR_PTR(err); + } switch (type) { case NL80211_IFTYPE_ADHOC: case NL80211_IFTYPE_STATION: @@ -823,8 +859,12 @@ brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev, s32 ap = 0; s32 err = 0; - brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type); - + brcmf_dbg(TRACE, "Enter, idx=%d, type=%d\n", ifp->bssidx, type); + err = brcmf_vif_change_validate(wiphy_to_cfg(wiphy), vif, type); + if (err) { + brcmf_err("iface validation failed: err=%d\n", err); + return err; + } switch (type) { case NL80211_IFTYPE_MONITOR: case NL80211_IFTYPE_WDS: |