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Message-ID: <Y3bRBGTAKutMgfo0@aschofie-mobl2>
Date:   Thu, 17 Nov 2022 16:25:40 -0800
From:   Alison Schofield <alison.schofield@...el.com>
To:     Jonathan Cameron <Jonathan.Cameron@...wei.com>
Cc:     Dan Williams <dan.j.williams@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Ben Widawsky <bwidawsk@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>, linux-cxl@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 5/6] tools/testing/cxl: Mock the max err records field
 of Identify cmd

On Wed, Nov 16, 2022 at 12:51:45PM +0000, Jonathan Cameron wrote:
> On Thu, 10 Nov 2022 19:12:43 -0800
> alison.schofield@...el.com wrote:
> 
> > From: Alison Schofield <alison.schofield@...el.com>
> > 
> > The CXL mbox command Identify reports the maximum media error
> > records that a device will report. Mock it here for testing
> > the GET POISON LIST mbox command.
> > 
> > Signed-off-by: Alison Schofield <alison.schofield@...el.com>
> > ---
> >  tools/testing/cxl/test/mem.c | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c
> > index aa2df3a15051..f0704d090073 100644
> > --- a/tools/testing/cxl/test/mem.c
> > +++ b/tools/testing/cxl/test/mem.c
> > @@ -111,6 +111,10 @@ static int mock_id(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
> >  			cpu_to_le64(DEV_SIZE / CXL_CAPACITY_MULTIPLIER),
> >  	};
> >  
> > +	__le32 val = cpu_to_le32(SZ_64);
> > +
> > +	memcpy(id.poison_list_max_mer, &val, 3);
> As in other direction, can we do this with a buffer of the right size if
> we can't do a put_unaligned_le24() directly.
> 
Yes. Got it, thanks!

> > +
> >  	if (cmd->size_out < sizeof(id))
> >  		return -EINVAL;
> >  
> 

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