linux-kernel - Re: [PATCH 6/6] cxl/memdev: Register for and process CPER events

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Date:   Mon, 11 Dec 2023 11:16:10 -0800
From:   Dan Williams <dan.j.williams@...el.com>
To:     Ira Weiny <ira.weiny@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Jonathan Cameron <jonathan.cameron@...wei.com>,
        Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>,
        Shiju Jose <shiju.jose@...wei.com>
CC:     Yazen Ghannam <yazen.ghannam@....com>,
        Davidlohr Bueso <dave@...olabs.net>,
        Dave Jiang <dave.jiang@...el.com>,
        Alison Schofield <alison.schofield@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        "Ard Biesheuvel" <ardb@...nel.org>, <linux-efi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-cxl@...r.kernel.org>,
        Ira Weiny <ira.weiny@...el.com>
Subject: Re: [PATCH 6/6] cxl/memdev: Register for and process CPER events

Ira Weiny wrote:
> Dan Williams wrote:
> > Ira Weiny wrote:
> > > Dan Williams wrote:
> > > > Ira Weiny wrote:
> > > 
> > 
> 
> [snip]
> 
> > 
> > > #define CXL_EVENT_HDR_FLAGS_REC_SEVERITY GENMASK(1, 0)
> > > static void cxl_cper_event_call(struct cxl_cper_notifier_data *nd)
> > 
> > Is struct cxl_cper_notifier_data needed anymore, just pass the record
> > reference?
> 
> I think so because the type of record is ID'ed by the GUID which is not
> part of the common record.  So the notifier data adds the cxl_event_type
> enum.

Ah, yup, but then I wonder if CPER can just do the GUID to type enum
lookup and keep the CXL side GUID-free? I.e. just pass the type as a
separate argument.