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Date:   Sun, 3 Apr 2022 10:44:46 +0200
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Subject: Re: staging: r8188eu: how to handle nested mutex under spinlock
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To:     Larry Finger <Larry.Finger@lwfinger.net>,
        Greg KH <gregkh@linuxfoundation.org>
Cc:     Phillip Potter <phil@philpotter.co.uk>,
        "open list:STAGING SUBSYSTEM" <linux-staging@lists.linux.dev>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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 <d9c7a2ba-288a-d81a-cd59-5b002489d821@lwfinger.net>
From:   Michael Straube <straube.linux@gmail.com>
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On 4/2/22 23:32, Larry Finger wrote:
> In drivers/net/wireless/realtek/rtlwifi, we had a similar problem. There 
> it was handled by putting the lps_enter() and lps_leave() operations in 
> a separate workqueue. In this case, the routines were rtl_lps_enter() 
> and rtl_lps_leave(). Each of them sets a variable to indicate whether 
> enter_ps is true or false, and schedules the workqueue. In the 
> workqueue's callback routine, the routines to start/stop ps mode are 
> called. The code is in drivers/net/wireless/realtek/rtlwifi/ps.c.
> 
> This solution is only one of many, and there may be a better one.
> 
> Larry
> 

Thank you for the explanation Larry.

Michael