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Message-Id: <20150107155701.4839545f63701412003edd88@linux-foundation.org>
Date: Wed, 7 Jan 2015 15:57:01 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Jiri Kosina <jkosina@...e.cz>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>,
Josh Poimboeuf <jpoimboe@...hat.com>,
Christoph Hellwig <hch@...radead.org>,
linux-kernel@...r.kernel.org, live-patching@...r.kernel.org,
linux-next@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Subject: Re: livepatching tree for linux-next
On Thu, 8 Jan 2015 00:49:49 +0100 (CET) Jiri Kosina <jkosina@...e.cz> wrote:
> --- a/kernel/livepatch/core.c
> +++ b/kernel/livepatch/core.c
> @@ -911,6 +911,12 @@ static int klp_init(void)
> {
> int ret;
>
> + ret = klp_check_compiler_support();
> + if (ret) {
> + pr_info("Your compiler is too old; turning off.\n");
> + return -EINVAL;
> + }
> +
Looks reasonable. It's a shame we've never figured out a way to do
this at Kconfig-time.
That second #error doing in livepatch.h is a bit odd. It errors out if
anyone includes livepatch.h when CONFIG_LIVE_PATCHING=n. Methinks it
would be saner to change it to
#error include linux/livepatch.h, not asm/livepatch.h
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