linux-kernel - Re: [PATCH v3 1/1] cxl/feature: Update out

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Message-ID: <20250415150149.00006116@huawei.com>
Date: Tue, 15 Apr 2025 15:01:49 +0100
From: Jonathan Cameron <Jonathan.Cameron@...wei.com>
To: Li Ming <ming.li@...omail.com>
CC: <dave@...olabs.net>, <dave.jiang@...el.com>, <alison.schofield@...el.com>,
	<vishal.l.verma@...el.com>, <ira.weiny@...el.com>,
	<dan.j.williams@...el.com>, <linux-cxl@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 1/1] cxl/feature: Update out_len in set feature
 failure case

On Thu, 10 Apr 2025 10:45:21 +0800
Li Ming <ming.li@...omail.com> wrote:

> CXL subsystem supports userspace to configure features via fwctl
> interface, it will configure features by using Set Feature command.
> Whatever Set Feature succeeds or fails, CXL driver always needs to
> return a structure fwctl_rpc_cxl_out to caller, and returned size is
> updated in a out_len parameter. The out_len should be updated not only
> when the set feature succeeds, but also when the set feature fails.
> 
> Fixes: eb5dfcb9e36d ("cxl: Add support to handle user feature commands for set feature")
> Signed-off-by: Li Ming <ming.li@...omail.com>
> Reviewed-by: Dave Jiang <dave.jiang@...el.com>
> Reviewed-by: Ira Weiny <ira.weiny@...el.com>
Seems reasonable and well explained.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>