linux-kernel - Re: [PATCH] workqueue: make wq

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Date: Thu, 8 Feb 2024 06:54:57 -1000
From: Tejun Heo <tj@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: "Ricardo B. Marliere" <ricardo@...liere.net>,
	Lai Jiangshan <jiangshanlai@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] workqueue: make wq_subsys const

On Thu, Feb 08, 2024 at 10:10:56AM +0000, Greg Kroah-Hartman wrote:
> On Wed, Feb 07, 2024 at 06:34:27AM -1000, Tejun Heo wrote:
> > On Wed, Feb 07, 2024 at 10:12:34AM +0000, Greg Kroah-Hartman wrote:
> > > On Tue, Feb 06, 2024 at 03:05:06PM -0300, Ricardo B. Marliere wrote:
> > > > Now that the driver core can properly handle constant struct bus_type,
> > > > move the wq_subsys variable to be a constant structure as well,
> > > > placing it into read-only memory which can not be modified at runtime.
> > > > 
> > > > Suggested-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > > > Signed-off-by: Ricardo B. Marliere <ricardo@...liere.net>
> > > > ---
> > > > The maintainer asked [1] for this patch to be received through the
> > > > driver-core tree.
> > > > [1]: https://lore.kernel.org/all/ZcEeOueCbrltxr_b@slm.duckdns.org/
> > > 
> > > There is no cross-tree dependency at all, but hey, I'll take it, no
> > > worries...
> > 
> > Ah, my bad. I branched out wq/for-6.9 before rc1 and was assuming the
> > dependent commit was still in the driver core branch. I should have just
> > pulled linus#master.
> 
> The dependent changes are in 6.4, so before -rc1 would have been ok as
> well :)

Hmmm....

 > git log -1 --oneline 32f78abe59c7
 32f78abe59c7 driver core: bus: constantify subsys_register() calls
 > git describe --contains 32f78abe59c7
 v6.8-rc1~61^2~10

-- 
tejun