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authorJohannes Berg <johannes.berg@intel.com>2015-01-15 16:14:02 +0100
committerJohannes Berg <johannes.berg@intel.com>2015-01-15 22:41:32 +0100
commitb51f3beecfbbfc946749a91fb444cb8917cf444f (patch)
tree68ecd024ca26b392b48599dc3725e4416d053d1f /net/wireless/nl80211.c
parent97d910d0aaa619ca530d08e2b1125b8014ccb030 (diff)
cfg80211: change bandwidth reporting to explicit field
For some reason, we made the bandwidth separate flags, which is rather confusing - a single rate cannot have different bandwidths at the same time. Change this to no longer be flags but use a separate field for the bandwidth ('bw') instead. While at it, add support for 5 and 10 MHz rates - these are reported as regular legacy rates with their real bitrate, but tagged as 5/10 now to make it easier to distinguish them. In the nl80211 API, the flags are preserved, but the code now can also clearly only set a single one of the flags. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/nl80211.c')
-rw-r--r--net/wireless/nl80211.c40
1 files changed, 28 insertions, 12 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 8998484ea970..8e56eeb583aa 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3578,6 +3578,7 @@ static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
struct nlattr *rate;
u32 bitrate;
u16 bitrate_compat;
+ enum nl80211_attrs rate_flg;
rate = nla_nest_start(msg, attr);
if (!rate)
@@ -3594,12 +3595,36 @@ static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
return false;
+ switch (info->bw) {
+ case RATE_INFO_BW_5:
+ rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
+ break;
+ case RATE_INFO_BW_10:
+ rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
+ break;
+ default:
+ WARN_ON(1);
+ /* fall through */
+ case RATE_INFO_BW_20:
+ rate_flg = 0;
+ break;
+ case RATE_INFO_BW_40:
+ rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
+ break;
+ case RATE_INFO_BW_80:
+ rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
+ break;
+ case RATE_INFO_BW_160:
+ rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
+ break;
+ }
+
+ if (rate_flg && nla_put_flag(msg, rate_flg))
+ return false;
+
if (info->flags & RATE_INFO_FLAGS_MCS) {
if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
return false;
- if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
- nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
- return false;
if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
return false;
@@ -3608,15 +3633,6 @@ static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
return false;
if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
return false;
- if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
- nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
- return false;
- if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
- nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
- return false;
- if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
- nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
- return false;
if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
return false;