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mac80211_hwsim: Use proper TX power 

In struct ieee80211_tx_info, control.vif pointer and rate_driver_data[0]
falls on the same place, depending on the union usage.
During the whole TX process, the union is referred to as a control struct,
which holds the vif that is later used in the tx flow, especially in order
to derive the used tx power.
Referring direcly to rate_driver_data[0] and assigning a value to it,
overwrites the vif pointer, hence making all later references irrelevant.
Moreover, rate_driver_data[0] isn't used later in the flow in order to
retrieve the channel that it is pointing to.

Cc: stable@vger.kernel.org
Signed-off-by: Beni Lev <beni.lev@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Beni Lev 2017-07-25 11:25:25 +03:00 committed by Johannes Berg
parent 89e9bfc4ee
commit 9de981f507
1 changed files with 0 additions and 2 deletions
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2
drivers/net/wireless/mac80211_hwsim.c
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@ -1362,8 +1362,6 @@ static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
txi->control.rates, txi->control.rates,
ARRAY_SIZE(txi->control.rates)); ARRAY_SIZE(txi->control.rates));
txi->rate_driver_data[0] = channel;
if (skb->len >= 24 + 8 && if (skb->len >= 24 + 8 &&
ieee80211_is_probe_resp(hdr->frame_control)) { ieee80211_is_probe_resp(hdr->frame_control)) {
/* fake header transmission time */ /* fake header transmission time */