linux-kernel - Re: [PATCH 5.10-rt] locking/rtmutex: switch to EXPORT_SYMBOL() for ww_mutex_lock{,

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Date:   Thu, 18 Aug 2022 18:32:37 +0200
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Yajun Deng <yajun.deng@...ux.dev>,
        "Luis Claudio R. Goncalves" <lgoncalv@...hat.com>
Cc:     peterz@...radead.org, mingo@...hat.com, will@...nel.org,
        linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org
Subject: Re: [PATCH 5.10-rt] locking/rtmutex: switch to EXPORT_SYMBOL() for
 ww_mutex_lock{,_interruptible}()

On 2022-08-03 14:24:30 [+0800], Yajun Deng wrote:
> We can use EXPORT_SYMBOL() instead of EXPORT_SYMBOL_GPL() in
> ww_mutex_lock_interruptible() and ww_mutex_lock(). That match
> ww_mutex_unlock() well. And also good for 3rd kernel modules.

Not that I am fan of this but it will sync the symbols with what landed
upstream as of commit
   f8635d509d807 ("locking/ww_mutex: Implement rtmutex based ww_mutex API functions")

therefore it would be good to have.
Luis?

> Signed-off-by: Yajun Deng <yajun.deng@...ux.dev>

Sebastian