linux-kernel - Re: [PATCH v2 1/1] cxl/mem: Fix for the index of Clear Event Record Handle

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Date: Mon, 18 Mar 2024 17:38:31 -0700
From: Dan Williams <dan.j.williams@...el.com>
To: Jonathan Cameron <Jonathan.Cameron@...wei.com>, Yuquan Wang
	<wangyuquan1236@...tium.com.cn>
CC: <ira.weiny@...el.com>, <dan.j.williams@...el.com>,
	<linux-cxl@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<qemu-devel@...gnu.org>, <chenbaozi@...tium.com.cn>
Subject: Re: [PATCH v2 1/1] cxl/mem: Fix for the index of Clear Event Record
 Handle

Jonathan Cameron wrote:
> On Mon, 18 Mar 2024 10:29:28 +0800
> Yuquan Wang <wangyuquan1236@...tium.com.cn> wrote:
> 
> > The dev_dbg info for Clear Event Records mailbox command would report
> > the handle of the next record to clear not the current one.
> > 
> > This was because the index 'i' had incremented before printing the
> > current handle value.
> > 
> > Signed-off-by: Yuquan Wang <wangyuquan1236@...tium.com.cn>
> > ---
> >  drivers/cxl/core/mbox.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c
> > index 9adda4795eb7..b810a6aa3010 100644
> > --- a/drivers/cxl/core/mbox.c
> > +++ b/drivers/cxl/core/mbox.c
> > @@ -915,7 +915,7 @@ static int cxl_clear_event_record(struct cxl_memdev_state *mds,
> >  
> >  		payload->handles[i++] = gen->hdr.handle;
> >  		dev_dbg(mds->cxlds.dev, "Event log '%d': Clearing %u\n", log,
> > -			le16_to_cpu(payload->handles[i]));
> > +			le16_to_cpu(payload->handles[i-1]));
> Trivial but needs spaces around the -. e.g.  [i - 1] 
> 
> Maybe Dan can fix up whilst applying.
> 
> Otherwise
> 
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>

I have enlisted Dave to start wrangling CXL kernel patches upstream, and
I will fall back to just reviewing.

Dave, you can add my:

Reviewed-by: Dan Williams <dan.j.williams@...el.com>

..with the same caveat as above.