linux-kernel - Re: [PATCH] liquidio: stop using huge static buffer, save 4096k in .data

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Message-ID: <20170620205125.GA1364@felix-thinkpad.cavium.com>
Date:   Tue, 20 Jun 2017 13:51:25 -0700
From:   Felix Manlunas <felix.manlunas@...ium.com>
To:     Derek Chickles <Derek.Chickles@...ium.com>
Cc:     David Miller <davem@...emloft.net>,
        "dvlasenk@...hat.com" <dvlasenk@...hat.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "Kanneganti, Prasad" <Prasad.Kanneganti@...ium.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] liquidio: stop using huge static buffer, save 4096k in
 .data

From: Derek Chickles <Derek.Chickles@...ium.com>
Date: Tue, 20 Jun 2017 13:15:34 -0700

> > From: David Miller [mailto:davem@...emloft.net]
> > Sent: Tuesday, June 20, 2017 12:22 PM
> > 
> > From: Denys Vlasenko <dvlasenk@...hat.com>
> > Date: Mon, 19 Jun 2017 21:50:52 +0200
> > 
> > > Only compile-tested - I don't have the hardware.
> > >
> > > From code inspection, octeon_pci_write_core_mem() appears to be safe wrt
> > > unaligned source. In any case, u8 fbuf[] was not guaranteed to be aligned
> > > anyway.
> > >
> > > Signed-off-by: Denys Vlasenko <dvlasenk@...hat.com>
> > 
> > Looks good to me but I'll let one of the liquidio guys review this first
> > before I apply it.
> 
> Felix is going to try this out this week to confirm. Let's wait for his ack.

This patch works.  I tested it with a LiquidIO II adapter.

ACK