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From: Petr Mladek <pmladek@suse.com>
To: Chris Down <chris@chrisdown.name>
Cc: linux-kernel@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Sergey Senozhatsky <senozhatsky@chromium.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	John Ogness <john.ogness@linutronix.de>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	kernel-team@fb.com
Subject: Re: [PATCH v3 1/2] printk: console: Create console= parser that supports named options
Date: Tue, 18 Apr 2023 15:43:58 +0200	[thread overview]
Message-ID: <ZD6envPT9YHVEaAx@alley> (raw)
In-Reply-To: <ZD1g2zidSD80OyJO@chrisdown.name>

On Mon 2023-04-17 16:08:11, Chris Down wrote:
> Chris Down writes:
> > Any thoughts on something simple like this that takes advantage of
> > memmove()? This should overcome the mmio/io concerns, and it's fairly
> > simple.
> 
> (although coming to think of it, this can just use memcpy(), but the same
> idea applies)

I think that we have to use memmove() because the locations might be
overlaping. The to-be-moved options might be longer than the replaced
option.

Best Regards,
Petr

  reply	other threads:[~2023-04-18 13:44 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-20 17:48 [PATCH v3 0/2] printk: console: Per-console loglevels Chris Down
2022-07-20 17:48 ` [PATCH v3 1/2] printk: console: Create console= parser that supports named options Chris Down
2022-08-31 10:13   ` Petr Mladek
2022-09-05 14:43     ` Chris Down
2022-09-05 14:45       ` Chris Down
2022-09-22 15:17       ` Petr Mladek
2023-04-17 15:04     ` Chris Down
2023-04-17 15:08       ` Chris Down
2023-04-18 13:43         ` Petr Mladek [this message]
2023-04-18 13:41       ` Petr Mladek
2023-04-19  0:31         ` Chris Down
2022-07-20 17:48 ` [PATCH v3 2/2] printk: console: Support console-specific loglevels Chris Down
2022-07-21  9:50   ` kernel test robot
2022-07-21 16:20     ` Chris Down
2022-07-21 16:16   ` kernel test robot
2022-07-21 16:29     ` Chris Down
2022-09-01  9:35   ` Petr Mladek
2022-09-05 14:07     ` Chris Down
2022-09-05 15:12       ` Petr Mladek
2022-07-20 18:22 ` [PATCH v3 0/2] printk: console: Per-console loglevels John Ogness
2022-07-20 18:29   ` Chris Down

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