mac80211: enable easier manipulation of VHT beamforming caps

Introduce shift and mask defines for beamformee STS cap and number
of sounding dimensions cap as these can take any 3 bit value.
While at it also cleanup an unrequired parenthesis.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 8c3b26a..776cbb8 100644 (file)
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1411,8 +1411,12 @@ struct ieee80211_vht_operation {
 #define IEEE80211_VHT_CAP_RXSTBC_MASK                          0x00000700
 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                        0x00000800
 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                        0x00001000
-#define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MAX                   0x0000e000
-#define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX              0x00070000
+#define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
+#define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK                  \
+               (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
+#define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT            16
+#define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK             \
+               (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                        0x00080000
 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                        0x00100000
 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                          0x00200000

diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index de01127..d75f35c 100644 (file)
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -182,16 +182,15 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
                         IEEE80211_VHT_CAP_SHORT_GI_160);
 
        /* remaining ones */
-       if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE) {
+       if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)
                vht_cap->cap |= cap_info &
                                (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
-                                IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX);
-       }
+                                IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK);
 
        if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
                vht_cap->cap |= cap_info &
                                (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
-                                IEEE80211_VHT_CAP_BEAMFORMEE_STS_MAX);
+                                IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK);
 
        if (own_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
                vht_cap->cap |= cap_info &