linux-kernel - Re: [PATCH v1 2/2] mmc: core: Allows to override the timeout value for ioctl() path

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Date:   Mon, 25 Apr 2022 22:15:43 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Bean Huo <huobean@...il.com>
Cc:     ulf.hansson@...aro.org, adrian.hunter@...el.com,
        linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        beanhuo@...ron.com, stable <stable@...r.kernel.org>
Subject: Re: [PATCH v1 2/2] mmc: core: Allows to override the timeout value
 for ioctl() path

On Mon, Apr 25, 2022 at 10:02 PM Bean Huo <huobean@...il.com> wrote:

> I think the current solution is the most flexible way, if the customer
> wants to override the kernel default timeout, they know how to initiate
> the correct timeout value in ioctl() based on their specific
> hardware/software system. I don't know how to convince every maintainer
> and reviewer if we don't want to give this permission or want to
> maintain a unified timeout value in the kernel driver. Given that we
> already have eMMC ioctl() support, and we've opened the door to allow
> users to specify specific cmd_timeout_ms in struct mmc_ioc_cmd{},
> please consider my change.

The patch is fine, I'm just saying we should put another patch on
top that defines a RPMB default timeout and set it to something
high, such as a minute.

Yours,
Linus Walleij