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Re: [PATCH v3] Revert "tty: serial: pl011: add ttyAMA for matching pl011 console"

Started bySudeep Holla <sudeep.holla@arm.com>
First post2017-03-14 17:20 +0100
Last post2017-03-17 06:10 +0100
Articles 4 — 4 participants

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  Re: [PATCH v3] Revert "tty: serial: pl011: add ttyAMA for matching  pl011 console" Sudeep Holla <sudeep.holla@arm.com> - 2017-03-14 17:20 +0100
    Re: [PATCH v3] Revert "tty: serial: pl011: add ttyAMA for matching  pl011 console" "Jayachandran C." <c.jayachandran@gmail.com> - 2017-03-16 08:20 +0100
      Re: [PATCH v3] Revert "tty: serial: pl011: add ttyAMA for matching  pl011 console" Aleksey Makarov <amakarov.linux@gmail.com> - 2017-03-16 10:40 +0100
        Re: [PATCH v3] Revert "tty: serial: pl011: add ttyAMA for matching  pl011 console" Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-03-17 06:10 +0100

#1600659 — Re: [PATCH v3] Revert "tty: serial: pl011: add ttyAMA for matching pl011 console"

FromSudeep Holla <sudeep.holla@arm.com>
Date2017-03-14 17:20 +0100
SubjectRe: [PATCH v3] Revert "tty: serial: pl011: add ttyAMA for matching pl011 console"
Message-ID<tkXl0-2CM-27@gated-at.bofh.it>

On 01/03/17 15:23, Aleksey Makarov wrote:
> The original patch makes the condition always true, so it is wrong.
> 
> It masks (but not fixes) the bug described in the commit message
> but introduces a regression (no console is selected by SPCR)
> in regular (no 'console=ttyAMA') case.
> 
> s/||/&&/ would not fix the problem as the root cause was identified
> incorrectly.
> 
> This reverts commit aea9a80ba98a0c9b4de88850260e9fbdcc98360b.
> 

Sorry for that, I will test your patches and respond to that. For this
patch:

Acked-by: Sudeep Holla <sudeep.holla@arm.com>

-- 
Regards,
Sudeep

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#1602013

From"Jayachandran C." <c.jayachandran@gmail.com>
Date2017-03-16 08:20 +0100
Message-ID<tlxRw-3e8-5@gated-at.bofh.it>
In reply to#1600659
Hi Greg,

On Tue, Mar 14, 2017 at 9:44 PM, Sudeep Holla <sudeep.holla@arm.com> wrote:
>
>
> On 01/03/17 15:23, Aleksey Makarov wrote:
>> The original patch makes the condition always true, so it is wrong.
>>
>> It masks (but not fixes) the bug described in the commit message
>> but introduces a regression (no console is selected by SPCR)
>> in regular (no 'console=ttyAMA') case.
>>
>> s/||/&&/ would not fix the problem as the root cause was identified
>> incorrectly.
>>
>> This reverts commit aea9a80ba98a0c9b4de88850260e9fbdcc98360b.
>>
>
> Sorry for that, I will test your patches and respond to that. For this
> patch:
>
> Acked-by: Sudeep Holla <sudeep.holla@arm.com>
>

This fixes a regression I see in v4.11-rc2

Tested-by: Jayachandran C <jnair@caviumnetworks.com>

I don't see it in the tty/serial tree yet

JC.

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#1602134

FromAleksey Makarov <amakarov.linux@gmail.com>
Date2017-03-16 10:40 +0100
Message-ID<tlA2Z-4H0-7@gated-at.bofh.it>
In reply to#1602013

On 03/16/2017 10:11 AM, Jayachandran C. wrote:
> Hi Greg,
> 
> On Tue, Mar 14, 2017 at 9:44 PM, Sudeep Holla <sudeep.holla@arm.com> wrote:
>>
>>
>> On 01/03/17 15:23, Aleksey Makarov wrote:
>>> The original patch makes the condition always true, so it is wrong.
>>>
>>> It masks (but not fixes) the bug described in the commit message
>>> but introduces a regression (no console is selected by SPCR)
>>> in regular (no 'console=ttyAMA') case.
>>>
>>> s/||/&&/ would not fix the problem as the root cause was identified
>>> incorrectly.
>>>
>>> This reverts commit aea9a80ba98a0c9b4de88850260e9fbdcc98360b.
>>>
>>
>> Sorry for that, I will test your patches and respond to that. For this
>> patch:
>>
>> Acked-by: Sudeep Holla <sudeep.holla@arm.com>
>>
> 
> This fixes a regression I see in v4.11-rc2
> 
> Tested-by: Jayachandran C <jnair@caviumnetworks.com>
> 
> I don't see it in the tty/serial tree yet

It's commit 713b93f1b849 from tty-next branch of 
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git

So it looks like it is scheduled for 4.12

Greg, this is a fix for regression.  Can it be applied to 4.11-rcX?

Thank you
Aleksey Makarov

> 
> JC.
> --
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#1603042

FromGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Date2017-03-17 06:10 +0100
Message-ID<tlSjg-10u-7@gated-at.bofh.it>
In reply to#1602134
On Thu, Mar 16, 2017 at 12:31:53PM +0300, Aleksey Makarov wrote:
> 
> 
> On 03/16/2017 10:11 AM, Jayachandran C. wrote:
> > Hi Greg,
> > 
> > On Tue, Mar 14, 2017 at 9:44 PM, Sudeep Holla <sudeep.holla@arm.com> wrote:
> >>
> >>
> >> On 01/03/17 15:23, Aleksey Makarov wrote:
> >>> The original patch makes the condition always true, so it is wrong.
> >>>
> >>> It masks (but not fixes) the bug described in the commit message
> >>> but introduces a regression (no console is selected by SPCR)
> >>> in regular (no 'console=ttyAMA') case.
> >>>
> >>> s/||/&&/ would not fix the problem as the root cause was identified
> >>> incorrectly.
> >>>
> >>> This reverts commit aea9a80ba98a0c9b4de88850260e9fbdcc98360b.
> >>>
> >>
> >> Sorry for that, I will test your patches and respond to that. For this
> >> patch:
> >>
> >> Acked-by: Sudeep Holla <sudeep.holla@arm.com>
> >>
> > 
> > This fixes a regression I see in v4.11-rc2
> > 
> > Tested-by: Jayachandran C <jnair@caviumnetworks.com>
> > 
> > I don't see it in the tty/serial tree yet
> 
> It's commit 713b93f1b849 from tty-next branch of 
> https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
> 
> So it looks like it is scheduled for 4.12
> 
> Greg, this is a fix for regression.  Can it be applied to 4.11-rcX?

Yes, will do that now, thanks.

greg k-h

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