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authorArend van Spriel <arend@broadcom.com>2016-03-02 20:37:18 +0100
committerJohannes Berg <johannes.berg@intel.com>2016-04-05 10:56:34 +0200
commit38de03d2a28925b489c11546804e2f5418cc17a4 (patch)
treedd54c49467ce3993f5e916862de528df873e984b /net/wireless/core.c
parentf59374eb427fb1377fdb7b8b3691c48e0c77a3c4 (diff)
nl80211: add feature for BSS selection support
Introducing a new feature that the driver can use to indicate the driver/firmware supports configuration of BSS selection criteria upon CONNECT command. This can be useful when multiple BSS-es are found belonging to the same ESS, ie. Infra-BSS with same SSID. The criteria can then be used to offload selection of a preferred BSS. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Lei Zhang <leizh@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> [move wiphy support check into parse_bss_select()] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/core.c')
-rw-r--r--net/wireless/core.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 9f1c4aa851ef..5327e4b974fa 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -626,6 +626,13 @@ int wiphy_register(struct wiphy *wiphy)
!rdev->ops->set_mac_acl)))
return -EINVAL;
+ /* assure only valid behaviours are flagged by driver
+ * hence subtract 2 as bit 0 is invalid.
+ */
+ if (WARN_ON(wiphy->bss_select_support &&
+ (wiphy->bss_select_support & ~(BIT(__NL80211_BSS_SELECT_ATTR_AFTER_LAST) - 2))))
+ return -EINVAL;
+
if (wiphy->addresses)
memcpy(wiphy->perm_addr, wiphy->addresses[0].addr, ETH_ALEN);