linux-kernel - Re: [PATCH-next 3/3] serial/sysrq: Add MAGIC_SYSRQ_SERIAL

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Date:   Sat, 11 Jan 2020 06:08:58 -0800
From:   Joe Perches <joe@...ches.com>
To:     Dmitry Safonov <dima@...sta.com>, linux-kernel@...r.kernel.org
Cc:     Dmitry Safonov <0x7f454c46@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>,
        Vasiliy Khoruzhick <vasilykh@...sta.com>,
        linux-serial@...r.kernel.org
Subject: Re: [PATCH-next 3/3] serial/sysrq: Add MAGIC_SYSRQ_SERIAL_SEQUENCE

On Fri, 2020-01-10 at 22:10 +0000, Dmitry Safonov wrote:
> Hi Joe,

Hi Dmitry.

> I'm not aware of a way to put the max string length in Kconfig,

Nor am I.


>  so I did
> in the patch:
> BUILD_BUG_ON(ARRAY_SIZE(sysrq_toggle_seq) >=
> sizeof(port->sysrq_seq)*U8_MAX);
> 
> Do you have something more elegant in your mind?

No, I didn't notice this and think this is fine
so thanks for that.

It's be nice to have something like BUILD_BUG_ON_MSG.