linux-kernel - Re: [RFC PATCH 1/5] serial: arc: Remove _

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Date:   Tue, 18 Jul 2017 14:06:05 +0800
From:   jeffy <jeffy.chen@...k-chips.com>
To:     Greg KH <gregkh@...uxfoundation.org>
CC:     linux-kernel@...r.kernel.org, briannorris@...omium.org,
        dianders@...omium.org, peter@...leysoftware.com,
        Jiri Slaby <jslaby@...e.com>,
        Vineet Gupta <vgupta@...opsys.com>,
        linux-serial@...r.kernel.org, linux-snps-arc@...ts.infradead.org
Subject: Re: [RFC PATCH 1/5] serial: arc: Remove __init marking from early
 write

Hi Greg,

On 07/18/2017 01:08 PM, Greg KH wrote:
> On Tue, Jul 18, 2017 at 12:29:59PM +0800, Jeffy Chen wrote:
>> The earlycon would be alive outside the init code in these cases:
>> 1/ we have keep_bootcon in cmdline.
>> 2/ we don't have a real console to switch to.
>>
>> So remove the __init marking to avoid invalid memory access.
>>
>> Signed-off-by: Jeffy Chen <jeffy.chen@...k-chips.com>
>> ---
>>
>
> I can't apply "RFC" patches.  If you have tested and found this series
> to be correct, can you resend it without that on the patch?
oh, sorry, i'll resend it :)

but i'm still not sure how to fix other hang cases(mentioned in the 
cover-letter, earlycon's required clks/pm domain been disabled by ignore 
unused initcalls or serial console driver's runtime suspend).
>
> thanks,
>
> greg k-h
>
>
>