linux-kernel - Re: [PATCH v3 05/16] ntb: ntb_test: ensure the link is up before trying to configure the mws

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Message-ID: <20170801181620.GF4186@kudzu.us>
Date:   Tue, 1 Aug 2017 14:16:20 -0400
From:   Jon Mason <jdmason@...zu.us>
To:     Logan Gunthorpe <logang@...tatee.com>
Cc:     linux-ntb@...glegroups.com, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, Dave Jiang <dave.jiang@...el.com>,
        Allen Hubbe <Allen.Hubbe@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kurt Schwemmer <kurt.schwemmer@...rosemi.com>,
        Stephen Bates <sbates@...thlin.com>,
        Serge Semin <fancer.lancer@...il.com>
Subject: Re: [PATCH v3 05/16] ntb: ntb_test: ensure the link is up before
 trying to configure the mws

On Tue, Aug 01, 2017 at 12:09:18PM -0600, Logan Gunthorpe wrote:
> 
> On 01/08/17 12:07 PM, Jon Mason wrote:
> > On Tue, Jul 25, 2017 at 02:57:42PM -0600, Logan Gunthorpe wrote:
> >> After the link tests, there is a race on one side of the test for
> >> the link coming up. It's possible, in some cases, for the test script
> >> to write to the 'peer_trans' files before the link has come up.
> >>
> >> To fix this, we simply use the link event file to ensure both sides
> >> see the link as up before continuning.
> >>
> >> Signed-off-by: Logan Gunthorpe <logang@...tatee.com>
> > 
> > This looks like a bug fix.  Assuming this is the case, I can pull it
> > out, add a "Fixes" line, and add it to my bug fixes branch.  Is this
> > the case?
> 
> Sure, yup, if you'd like to do that I'm fine with it. Technically, I
> don't think the bug can be triggered until the patches later in the
> series are applied.

Given how trivial it is, I think closing the loop here on this would
be a good thing (and one less patch for your v4).

> 
> Thanks,
> 
> Logan
> 
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