linux-kernel - Re: [PATCH v6 1/2] spi: Replace -ENOTSUPP with -EOPNOTSUPP in op checking

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Message-ID: <401df72f-9255-4da3-b97e-93d3f38d352c@sirena.org.uk>
Date:   Thu, 16 Nov 2023 15:21:01 +0000
From:   Mark Brown <broonie@...nel.org>
To:     AceLan Kao <acelan.kao@...onical.com>
Cc:     Tudor Ambarus <tudor.ambarus@...aro.org>,
        Pratyush Yadav <pratyush@...nel.org>,
        Michael Walle <michael@...le.cc>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Dhruva Gole <d-gole@...com>, linux-mtd@...ts.infradead.org,
        Kamal Dasu <kamal.dasu@...adcom.com>,
        Jonathan Neuschäfer <j.neuschaefer@....net>,
        Mario Kicherer <dev@...herer.org>,
        Chuanhong Guo <gch981213@...il.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 1/2] spi: Replace -ENOTSUPP with -EOPNOTSUPP in op
 checking

On Thu, Nov 16, 2023 at 10:43:37AM +0800, AceLan Kao wrote:

> The purpose of this patch is to distinguish the "operation not support"
> error from the generic "not support", so that drivers could better
> handle different errors.

What is the intended distinction between the two?

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