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From: Andrew Morton <akpm@linux-foundation•org>
To: Jiri Kosina <jkosina@suse•cz>
Cc: Stephen Rothwell <sfr@canb•auug.org.au>,
	Josh Poimboeuf <jpoimboe@redhat•com>,
	Christoph Hellwig <hch@infradead•org>,
	linux-kernel@vger•kernel.org, live-patching@vger•kernel.org,
	linux-next@vger•kernel.org, Steven Rostedt <rostedt@goodmis•org>,
	Masami Hiramatsu <masami.hiramatsu.pt@hitachi•com>
Subject: Re: livepatching tree for linux-next
Date: Wed, 7 Jan 2015 15:57:01 -0800	[thread overview]
Message-ID: <20150107155701.4839545f63701412003edd88@linux-foundation.org> (raw)
In-Reply-To: <alpine.LNX.2.00.1501080037030.15299@pobox.suse.cz>

On Thu, 8 Jan 2015 00:49:49 +0100 (CET) Jiri Kosina <jkosina@suse•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

  reply	other threads:[~2015-01-07 23:57 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-22 19:52 livepatching tree for linux-next Jiri Kosina
2014-12-23  9:46 ` Christoph Hellwig
2014-12-23 15:10   ` Josh Poimboeuf
2014-12-26  4:56     ` Stephen Rothwell
2015-01-07 22:43       ` Andrew Morton
2015-01-07 23:01         ` Jiri Kosina
2015-01-07 23:30           ` Andrew Morton
2015-01-07 23:49             ` Jiri Kosina
2015-01-07 23:57               ` Andrew Morton [this message]
2015-01-08  0:11                 ` Jiri Kosina
2015-01-08  0:33                   ` Andrew Morton
2015-01-08  2:22                     ` Jingoo Han
2015-01-12 12:45                   ` Masami Hiramatsu
2015-01-13 22:47                     ` [PATCH] ftrace: don't allow IPMODIFY without proper compiler support (was Re: Re: livepatching tree for linux-next) Jiri Kosina
2015-01-14  2:12                       ` Steven Rostedt
2015-01-14  8:47                         ` [PATCH 1/2 v2] ftrace: don't allow IPMODIFY without proper compiler support Jiri Kosina
2015-01-14  8:48                           ` [PATCH 2/2] kprobes: compile out IPMODIFY support if ftrace doesn't support it Jiri Kosina
2015-01-15  3:04                             ` Masami Hiramatsu
2015-01-15  3:34                           ` [PATCH 1/2 v2] ftrace: don't allow IPMODIFY without proper compiler support Masami Hiramatsu
2015-01-15  9:34                             ` Jiri Kosina
2015-01-15  9:50                           ` [PATCH 1/2 v3] " Jiri Kosina
2015-01-15  9:50                             ` [PATCH 2/2 v3] kprobes: compile out IPMODIFY support if ftrace doesn't support it Jiri Kosina
2015-01-16 16:35                             ` [PATCH 1/2 v3] ftrace: don't allow IPMODIFY without proper compiler support Steven Rostedt
2015-01-16 16:41                               ` Jiri Kosina
2015-01-16 16:53                                 ` Steven Rostedt
2015-01-14  2:34                       ` [PATCH] ftrace: don't allow IPMODIFY without proper compiler support (was Re: Re: livepatching tree for linux-next) Masami Hiramatsu
2015-01-14  8:34                         ` Jiri Kosina
2015-01-09 10:03                 ` livepatching tree for linux-next Jiri Kosina

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