From: Jakub Kicinski <kuba@kernel.org>
To: Lukasz Majewski <lukma@denx.de>
Cc: netdev@vger.kernel.org, Paolo Abeni <pabeni@redhat.com>,
Casper Andersson <casper.casan@gmail.com>,
Andrew Lunn <andrew@lunn.ch>, Eric Dumazet <edumazet@google.com>,
Vladimir Oltean <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Oleksij Rempel <o.rempel@pengutronix.de>,
Tristram.Ha@microchip.com,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Ravi Gunasekaran <r-gunasekaran@ti.com>,
Simon Horman <horms@kernel.org>,
Nikita Zhandarovich <n.zhandarovich@fintech.ru>,
Murali Karicheri <m-karicheri2@ti.com>,
Jiri Pirko <jiri@resnulli.us>,
Dan Carpenter <dan.carpenter@linaro.org>,
Ziyang Xuan <william.xuanziyang@huawei.com>,
Shigeru Yoshida <syoshida@redhat.com>,
"Ricardo B. Marliere" <ricardo@marliere.net>,
linux-kernel@vger.kernel.org
Subject: Re: [net-next PATCH] hsr: Simplify code for announcing HSR nodes timer setup
Date: Mon, 29 Apr 2024 10:40:26 -0700 [thread overview]
Message-ID: <20240429104026.0fe3de0f@kernel.org> (raw)
In-Reply-To: <20240429120904.2ab5248c@wsk>
On Mon, 29 Apr 2024 12:09:04 +0200 Lukasz Majewski wrote:
> > if the
> > timer is already running we'll mess with the spacing of the frames,
> > no?
>
> When NETDEV_CHANGE is trigger for reason different than carrier (or
> port state) change and the netif_oper_up() returns true, the period for
> HSR supervisory frames (i.e. HSR_ANNOUNCE_INTEVAL) would be violated.
>
> What are here the potential threads?
Practically speaking I'm not sure if anyone uses any of the weird IFF_*
flags, but they are defined in uAPI (enum net_device_flags) and I don't
see much validation so presumably it's possible to flip them.
next prev parent reply other threads:[~2024-04-29 17:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-25 15:39 [net-next PATCH] hsr: Simplify code for announcing HSR nodes timer setup Lukasz Majewski
2024-04-27 0:33 ` Jakub Kicinski
2024-04-29 10:09 ` Lukasz Majewski
2024-04-29 17:40 ` Jakub Kicinski [this message]
2024-04-30 12:52 ` Lukasz Majewski
2024-04-30 14:42 ` Jakub Kicinski
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