linux-kernel - Re: [PATCH 03/11] cxl/core: Remove cxl_device

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Message-ID: <20220309182217.00006bf5@Huawei.com>
Date:   Wed, 9 Mar 2022 18:22:17 +0000
From:   Jonathan Cameron <Jonathan.Cameron@...wei.com>
To:     Dan Williams <dan.j.williams@...el.com>
CC:     <gregkh@...uxfoundation.org>, <rafael.j.wysocki@...el.com>,
        "Alison Schofield" <alison.schofield@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Ben Widawsky <ben.widawsky@...el.com>,
        <linux-kernel@...r.kernel.org>, <linux-cxl@...r.kernel.org>,
        <nvdimm@...ts.linux.dev>
Subject: Re: [PATCH 03/11] cxl/core: Remove cxl_device_lock()

On Mon, 28 Feb 2022 18:49:06 -0800
Dan Williams <dan.j.williams@...el.com> wrote:

> In preparation for moving lockdep_mutex nested lock acquisition into the
> core, remove the cxl_device_lock() wrapper, but preserve
> cxl_lock_class() that will be used to inform the core of the subsystem's
> lock ordering rules.
> 
> Cc: Alison Schofield <alison.schofield@...el.com>
> Cc: Vishal Verma <vishal.l.verma@...el.com>
> Cc: Ira Weiny <ira.weiny@...el.com>
> Cc: Ben Widawsky <ben.widawsky@...el.com>
> Signed-off-by: Dan Williams <dan.j.williams@...el.com>

Makes sense, but perhaps the description should call out that after
this patch it's not just a wrapper remove, but rather the lock
checking is totally gone for now?

Otherwise this looks fine to me. FWIW
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>