lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <ZcdUk5c0M7bTUOSv@linux.intel.com>
Date: Sat, 10 Feb 2024 11:48:51 +0100
From: Stanislaw Gruszka <stanislaw.gruszka@...ux.intel.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	Johannes Berg <johannes@...solutions.net>,
	Tony Nguyen <anthony.l.nguyen@...el.com>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Sasha Neftin <sasha.neftin@...el.com>,
	Dima Ruinskiy <dima.ruinskiy@...el.com>,
	Heiner Kallweit <hkallweit1@...il.com>,
	"Rafael J . Wysocki " <rafael@...nel.org>
Subject: Re: [PATCH] net: avoid net core runtime resume for most drivers

On Fri, Feb 09, 2024 at 12:45:36PM -0800, Jakub Kicinski wrote:
> On Wed,  7 Feb 2024 10:51:11 +0100 Stanislaw Gruszka wrote:
> > Introducing runtime resume before ndo_open and ethtool ops by commits:
> > 
> > d43c65b05b84 ("ethtool: runtime-resume netdev parent in ethnl_ops_begin")
> > bd869245a3dc ("net: core: try to runtime-resume detached device in __dev_open")
> 
> We should revisit whether core should try to help drivers with PM
> or not once the Intel drivers are fixed. Taking the global networking
> lock from device resume routine is inexcusable.

Ok, we need get rid of it in igc (and fix broken assertion in igb).

> I really don't want to
> make precedents for adjusting the core because driver code is poor
> quality :(

I see this rather as removal of special core adjustment added
by above commits. It's only needed for r8169. For all others
it is just pure harm. It could be done without the priv flag,
but then r8169 probably would need changes.

Regards
Stanislaw

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ