From: "Marek Behún" <kabel@kernel.org>
To: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: netdev@vger.kernel.org, linux-leds@vger.kernel.org,
Pavel Machek <pavel@ucw.cz>, Dan Murphy <dmurphy@ti.com>,
Russell King <linux@armlinux.org.uk>,
Andrew Lunn <andrew@lunn.ch>,
Matthias Schiffer <matthias.schiffer@ew.tq-group.com>,
"David S. Miller" <davem@davemloft.net>,
Ben Whitten <ben.whitten@gmail.com>
Subject: Re: [PATCH RFC leds + net-next 2/7] leds: trigger: netdev: simplify the driver by using bit field members
Date: Sat, 31 Oct 2020 00:45:56 +0100 [thread overview]
Message-ID: <20201031004556.32c61a9d@kernel.org> (raw)
In-Reply-To: <64419e33-ffcd-4082-01bd-3370dae86b4b@gmail.com>
On Fri, 30 Oct 2020 23:37:52 +0100
Jacek Anaszewski <jacek.anaszewski@gmail.com> wrote:
> Hi Marek,
>
> Bitops are guaranteed to be atomic and this was done for a reason.
Hmm okay...
Sooo, netdev_trig_work cannot be executed at the same time as the
link/linkup/rx/tx changing stuff from netdev_trig_notify,
interval_store or netdev_led_attr_store, because all these functions
ensure cancelation of netdev_trig_work by calling
cancel_delayed_work_sync. Doesn't this somehow prevent the need for
memory barriers provided by atomic bitops?
BTW Jacek what do you think about the other patches?
Marek
next prev parent reply other threads:[~2020-10-30 23:46 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-30 11:44 [PATCH RFC leds + net-next 0/7] netdev trigger offloading and LEDs on Marvell PHYs Marek Behún
2020-10-30 11:44 ` [PATCH RFC leds + net-next 1/7] leds: trigger: netdev: don't explicitly zero kzalloced data Marek Behún
2020-11-25 12:34 ` Pavel Machek
2020-10-30 11:44 ` [PATCH RFC leds + net-next 2/7] leds: trigger: netdev: simplify the driver by using bit field members Marek Behún
2020-10-30 22:37 ` Jacek Anaszewski
2020-10-30 23:45 ` Marek Behún [this message]
2020-11-01 16:40 ` Jacek Anaszewski
2021-03-01 10:30 ` Pavel Machek
2020-10-30 11:44 ` [PATCH RFC leds + net-next 3/7] leds: trigger: add API for HW offloading of triggers Marek Behún
2021-03-01 10:38 ` Pavel Machek
2020-10-30 11:44 ` [PATCH RFC leds + net-next 4/7] leds: trigger: netdev: support HW offloading Marek Behún
2020-11-05 14:44 ` Marek Behún
2021-03-01 10:44 ` Pavel Machek
2020-10-30 11:44 ` [PATCH RFC leds + net-next 5/7] net: phy: add simple incrementing phyindex member to phy_device struct Marek Behún
2021-03-01 10:46 ` Pavel Machek
2020-10-30 11:44 ` [PATCH RFC leds + net-next 6/7] net: phy: add support for LEDs connected to ethernet PHYs Marek Behún
2021-03-01 10:52 ` Pavel Machek
2020-10-30 11:44 ` [PATCH RFC leds + net-next 7/7] net: phy: marvell: support LEDs connected on Marvell PHYs Marek Behún
2020-11-25 12:38 ` Pavel Machek
2021-03-01 11:05 ` Pavel Machek
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