Messages in this thread | | | Subject | Re: [PATCH v2 44/63] mac80211: Use memset_after() to clear tx status | From | Johannes Berg <> | Date | Wed, 18 Aug 2021 09:08:52 +0200 |
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On Tue, 2021-08-17 at 23:05 -0700, Kees Cook wrote: > > @@ -275,12 +275,11 @@ static void carl9170_tx_release(struct kref *ref) > if (WARN_ON_ONCE(!ar)) > return; > > > > > - BUILD_BUG_ON( > - offsetof(struct ieee80211_tx_info, status.ack_signal) != 20); > - > - memset(&txinfo->status.ack_signal, 0, > - sizeof(struct ieee80211_tx_info) - > - offsetof(struct ieee80211_tx_info, status.ack_signal)); > + /* > + * Should this call ieee80211_tx_info_clear_status() instead of clearing > + * manually? txinfo->status.rates do not seem to be used here. > + */
Since you insist, I went digging :)
It should not, carl9170_tx_fill_rateinfo() has filled the rate information before we get to this point.
johannes
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