linux-kernel - Re: [PATCH v4] printk: Userspace format enumeration support

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Message-ID: <YC6NaqZbNibxtS7f@chrisdown.name>
Date:   Thu, 18 Feb 2021 15:53:14 +0000
From:   Chris Down <chris@...isdown.name>
To:     Petr Mladek <pmladek@...e.com>
Cc:     linux-kernel@...r.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        John Ogness <john.ogness@...utronix.de>,
        Johannes Weiner <hannes@...xchg.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kees Cook <keescook@...omium.org>, kernel-team@...com
Subject: Re: [PATCH v4] printk: Userspace format enumeration support

Petr Mladek writes:
>On Thu 2021-02-18 12:41:39, Chris Down wrote:
>> Petr Mladek writes:
>> > > - See if it's safe to pass a printk_fmt_sec to seq_file instead of a module
>> >
>> > Also it might be needed to store the pointer to struct module.
>>
>> You mean, have a `struct module` entry for this? I somewhat suspect that
>> module.c maintainers are not likely to be happy about injecting non-generic
>> code into there if it's possible to be avoided, but maybe I'm
>> misunderstanding?
>
>Yes, I suggest to store the pointer into struct module. It includes
>many external entries. It is similar to struct task_struct.

Ah yes, now you mention it that does look fine. Thanks!

Expect v5 in the coming days, then. :-)