linux-kernel - Re: [PATCH v2 net 6/6] net: mvneta: enable IP checksum with jumbo frames for Armada 38x on Port0

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Message-ID: <CAPv3WKcVd_85m025ew4Ev6UMTo6iRPsFf4ZGG37e2hwi4L7LKg@mail.gmail.com>
Date:	Thu, 26 Nov 2015 19:41:29 +0100
From:	Marcin Wojtas <mw@...ihalf.com>
To:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Cc:	linux-kernel@...r.kernel.org,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>, netdev@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Andrew Lunn <andrew@...n.ch>,
	Jason Cooper <jason@...edaemon.net>,
	Gregory Clément 
	<gregory.clement@...e-electrons.com>,
	Simon Guinot <simon.guinot@...uanux.org>, nadavh@...vell.com,
	Lior Amsalem <alior@...vell.com>,
	Evan Wang <xswang@...vell.com>,
	Yair Mahalalel <myair@...vell.com>, nitroshift@...oo.com,
	Grzegorz Jaszczyk <jaz@...ihalf.com>,
	Tomasz Nowicki <tn@...ihalf.com>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: Re: [PATCH v2 net 6/6] net: mvneta: enable IP checksum with jumbo
 frames for Armada 38x on Port0

Thomas,


2015-11-26 19:33 GMT+01:00 Thomas Petazzoni
<thomas.petazzoni@...e-electrons.com>:
> Marcin,
>
> On Thu, 26 Nov 2015 19:08:13 +0100, Marcin Wojtas wrote:
>> The Ethernet controller found in the Armada 38x SoC's family support
>> TCP/IP checksumming with frame sizes larger than 1600 bytes, however
>> only on port 0.
>>
>> This commit enables it by setting 'tx-csum-limit' to 9800B in
>> 'ethernet@...00' node.
>>
>> Signed-off-by: Marcin Wojtas <mw@...ihalf.com>
>> Cc: <stable@...r.kernel.org> # v3.18+
>
> This and the previous patch is not a fix, and has no business going in
> stable. It is enabling a better functionality, but it is clearly not a
> fix.
>

Ok. I thought that patches enabling tx_csum_limit were adding a sort
of regression, but I can agree to your interpretation. In such case I
will leave stable notification only for patch #4.

Thanks,
Marcin
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