linux-kernel - RE: [PATCH] ACPI: APEI: EINJ: warn on invalid argument when explicitly indicated by platform

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Message-ID: <SJ1PR11MB6083FE558641F0E57FF1F5A4FC869@SJ1PR11MB6083.namprd11.prod.outlook.com>
Date:   Wed, 22 Mar 2023 16:07:51 +0000
From:   "Luck, Tony" <tony.luck@...el.com>
To:     Shuai Xue <xueshuai@...ux.alibaba.com>
CC:     "baolin.wang@...ux.alibaba.com" <baolin.wang@...ux.alibaba.com>,
        "benjamin.cheatham@....com" <benjamin.cheatham@....com>,
        "bp@...en8.de" <bp@...en8.de>,
        "Williams, Dan J" <dan.j.williams@...el.com>,
        "james.morse@....com" <james.morse@....com>,
        "jaylu102@....com" <jaylu102@....com>,
        "lenb@...nel.org" <lenb@...nel.org>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "rafael@...nel.org" <rafael@...nel.org>,
        "zhuo.song@...ux.alibaba.com" <zhuo.song@...ux.alibaba.com>
Subject: RE: [PATCH] ACPI: APEI: EINJ: warn on invalid argument when
 explicitly indicated by platform

> Fix to return -EINVAL in the __einj_error_inject() error handling case
> instead of -EBUSY, when explicitly indicated by the platform in the status
> of the completed operation.

Needs a bit longer description on the use case based on follow up discussion.
Key information is the EINVAL is an indicator to the user that the parameters they
supplied cannot be used for injection.

But for the code:

Reviewed-by: Tony Luck <tony.luck@...el.com>

-Tony