From: Johannes Berg <johannes@sipsolutions.net>
To: Edward Adam Davis <eadavis@qq.com>,
syzbot+064815c6cd721082a52a@syzkaller.appspotmail.com
Cc: linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org,
netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [PATCH] wifi: mac80211_hwsim: Prevent tsf from setting if beacon is disabled
Date: Wed, 23 Apr 2025 14:53:53 +0200 [thread overview]
Message-ID: <b30cc04676a031db8c36df243160992094b3848d.camel@sipsolutions.net> (raw)
In-Reply-To: <tencent_096EDEEED78C81A7D006E812E4C66E898A06@qq.com>
On Sun, 2025-04-13 at 14:11 +0800, Edward Adam Davis wrote:
>
> --- a/drivers/net/wireless/virtual/mac80211_hwsim.c
> +++ b/drivers/net/wireless/virtual/mac80211_hwsim.c
> @@ -1226,6 +1226,11 @@ static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
> {
> struct mac80211_hwsim_data *data = hw->priv;
> u64 now = mac80211_hwsim_get_tsf(hw, vif);
> + struct ieee80211_bss_conf *conf = link_conf_dereference_protected(vif,
> + data->link_data[0].link_id);
> +
> + if (conf && !conf->enable_beacon)
> + return;
> /* MLD not supported here */
> u32 bcn_int = data->link_data[0].beacon_int;
> u64 delta = abs(tsf - now);
Please keep kernel coding style - the line break there is awful (but
with "conf = ..." on a line by itself it can be just one line), and you
shouldn't have code before variable declarations.
The comment should probably also move because it's relevant for your new
[0] as well.
johannes
next prev parent reply other threads:[~2025-04-23 12:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-12 20:14 [syzbot] [wireless?] divide error in mac80211_hwsim_set_tsf syzbot
2025-04-13 5:35 ` Edward Adam Davis
2025-04-13 5:54 ` syzbot
2025-04-13 6:11 ` [PATCH] wifi: mac80211_hwsim: Prevent tsf from setting if beacon is disabled Edward Adam Davis
2025-04-23 12:53 ` Johannes Berg [this message]
2025-04-23 13:56 ` Edward Adam Davis
2025-04-23 14:04 ` Johannes Berg
2025-04-23 14:10 ` Edward Adam Davis
2025-04-23 14:15 ` [PATCH V2] " Edward Adam Davis
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