linux-kernel - Re: [PATCH 10/22] wifi: mwifiex: Use alloc_ordered

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Message-ID: <ZEgYdSOYaojJBoPP@google.com>
Date:   Tue, 25 Apr 2023 11:14:13 -0700
From:   Brian Norris <briannorris@...omium.org>
To:     Tejun Heo <tj@...nel.org>
Cc:     jiangshanlai@...il.com, linux-kernel@...r.kernel.org,
        kernel-team@...a.com, Amitkumar Karwar <amitkarwar@...il.com>,
        Ganapathi Bhat <ganapathi017@...il.com>,
        Sharvari Harisangam <sharvari.harisangam@....com>,
        Xinming Hu <huxinming820@...il.com>,
        Kalle Valo <kvalo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 10/22] wifi: mwifiex: Use alloc_ordered_workqueue() to
 create ordered workqueues

On Thu, Apr 20, 2023 at 04:50:34PM -1000, Tejun Heo wrote:
> The conversions are from
> 
>   alloc_workqueue(WQ_UNBOUND | flags, 1, args..)
> 
> to
> 
>   alloc_ordered_workqueue(flags, args...)
> 
> which don't cause any functional changes. If you know that fully ordered
> execution is not ncessary, please let me know. I'll drop the conversion and
> instead add a comment noting the fact to reduce confusion while conversion
> is in progress.
> 
> If you aren't fully sure, it's completely fine to let the conversion
> through. The behavior will stay exactly the same and we can always
> reconsider later.
> 
> As there are follow-up workqueue core changes, I'd really appreciate if the
> patch can be routed through the workqueue tree w/ your acks. Thanks.
> 
> Signed-off-by: Tejun Heo <tj@...nel.org>
> Cc: Amitkumar Karwar <amitkarwar@...il.com>
> Cc: Ganapathi Bhat <ganapathi017@...il.com>
> Cc: Sharvari Harisangam <sharvari.harisangam@....com>
> Cc: Xinming Hu <huxinming820@...il.com>
> Cc: Kalle Valo <kvalo@...nel.org>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Eric Dumazet <edumazet@...gle.com>
> Cc: Jakub Kicinski <kuba@...nel.org>
> Cc: Paolo Abeni <pabeni@...hat.com>
> Cc: linux-wireless@...r.kernel.org
> Cc: netdev@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> ---
>  .../net/wireless/marvell/mwifiex/cfg80211.c   | 13 +++++------
>  drivers/net/wireless/marvell/mwifiex/main.c   | 22 +++++++++----------
>  2 files changed, 16 insertions(+), 19 deletions(-)

These work queues only ever get a single work item on them, so
"ordering" can't really matter. This could go either way -- a comment or
the current patch; so:

Reviewed-by: Brian Norris <briannorris@...omium.org>