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From: Miroslav Benes <mbenes@suse.cz>
To: Chris J Arges <chris.j.arges@canonical.com>
Cc: live-patching@vger.kernel.org, jeyu@redhat.com,
	Petr Mladek <pmladek@suse.com>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	Seth Jennings <sjenning@redhat.com>,
	Jiri Kosina <jikos@kernel.org>, Vojtech Pavlik <vojtech@suse.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/4 v5] livepatch: Simplify code for relocated external symbols
Date: Fri, 13 Nov 2015 11:24:33 +0100 (CET)	[thread overview]
Message-ID: <alpine.LNX.2.00.1511131119330.5093@pobox.suse.cz> (raw)
In-Reply-To: <1447347595-30728-3-git-send-email-chris.j.arges@canonical.com>

On Thu, 12 Nov 2015, Chris J Arges wrote:

> From: Petr Mladek <pmladek@suse.com>
> 
> The livepatch module might be linked from several .o files.
> All symbols that need to be shared between these .o files
> should be exported. This is a normal programming practice.
> I do not see any reason to access static symbols between
> these .o files.
> 
> This patch removes the search for the static symbols within
> the livepatch module. It makes it easier to understand
> the meaning of the external flag and klp_find_external_symbol()
> function.
> 
> Signed-off-by: Petr Mladek <pmladek@suse.com>
> Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>

I'd remove this patch from the patch set, because

1. Josh needs to confirm that it is possible for kpatch to live without 
external or that we can modify it. This could postpone this patch set as a 
whole.

2. I think the issue is quite independent of the problem this patch set 
solves.

3. I can even imagine that we could get rid of 'external' in klp_func and 
its special handling completely if kpatch allows.

So let's solve it separately. Does anyone have a different opinion?

Miroslav

  reply	other threads:[~2015-11-13 10:24 UTC|newest]

Thread overview: 104+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-02 17:58 [PATCH] livepatch: old_name.number scheme in livepatch sysfs directory Chris J Arges
2015-11-02 17:58 ` Chris J Arges
2015-11-02 19:15 ` Jessica Yu
2015-11-02 19:52 ` [PATCH] " Josh Poimboeuf
2015-11-02 19:52   ` Josh Poimboeuf
2015-11-02 20:16   ` Chris J Arges
2015-11-02 20:32     ` Josh Poimboeuf
2015-11-02 22:59       ` [PATCH v2] " Chris J Arges
2015-11-02 22:59         ` Chris J Arges
2015-11-03  9:50         ` Miroslav Benes
2015-11-03 15:03           ` Josh Poimboeuf
2015-11-03 10:52         ` Miroslav Benes
2015-11-03 10:52           ` Miroslav Benes
2015-11-03 12:44           ` Petr Mladek
2015-11-03 12:44             ` Petr Mladek
2015-11-03 15:03             ` Josh Poimboeuf
2015-11-03 15:03               ` Josh Poimboeuf
2015-11-03 19:57             ` Jiri Kosina
2015-11-03 19:57               ` Jiri Kosina
2015-11-03 20:06               ` Josh Poimboeuf
2015-11-03 20:06                 ` Josh Poimboeuf
     [not found]                 ` <1447259366-7055-1-git-send-email-chris.j.arges@canonical.com>
2015-11-11 16:28                   ` [PATCH 1/3 v4] livepatch: add old_sympos as disambiguator field to klp_func Chris J Arges
2015-11-11 17:43                     ` Josh Poimboeuf
2015-11-12 10:22                     ` Miroslav Benes
2015-11-11 16:29                   ` [PATCH 2/3 v4] livepatch: add old_sympos as disambiguator field to klp_reloc Chris J Arges
2015-11-11 16:39                     ` Chris J Arges
2015-11-11 17:57                     ` Josh Poimboeuf
2015-11-12 14:31                       ` Petr Mladek
2015-11-12 19:19                         ` Josh Poimboeuf
2015-11-13 13:54                           ` Petr Mladek
2015-11-13 16:59                             ` Josh Poimboeuf
2015-11-16 12:11                               ` Petr Mladek
2015-11-12 10:23                     ` Miroslav Benes
2015-11-11 16:29                   ` [PATCH 3/3 v4] livepatch: old_name,number scheme in livepatch sysfs directory Chris J Arges
2015-11-11 18:01                     ` Josh Poimboeuf
2015-11-11 18:01                       ` Josh Poimboeuf
     [not found]                   ` <1447347595-30728-1-git-send-email-chris.j.arges@canonical.com>
2015-11-12 16:59                     ` [PATCH 1/4 v5] livepatch: add old_sympos as disambiguator field to klp_func Chris J Arges
2015-11-12 19:45                       ` Josh Poimboeuf
2015-11-13  9:56                       ` Jiri Kosina
2015-11-13 10:14                       ` Miroslav Benes
2015-11-13 16:27                       ` Petr Mladek
2015-11-12 16:59                     ` [PATCH 2/4 v5] livepatch: Simplify code for relocated external symbols Chris J Arges
2015-11-13 10:24                       ` Miroslav Benes [this message]
2015-11-13 13:55                         ` Petr Mladek
2015-11-12 16:59                     ` [PATCH 3/4 v5] livepatch: add sympos as disambiguator field to klp_reloc Chris J Arges
2015-11-12 19:50                       ` Josh Poimboeuf
2015-11-13 16:42                       ` Petr Mladek
2015-11-12 16:59                     ` [PATCH 4/4 v5] livepatch: function,sympos scheme in livepatch sysfs directory Chris J Arges
     [not found]                     ` <1447431804-18786-1-git-send-email-chris.j.arges@canonical.com>
2015-11-13 16:23                       ` [PATCH 1/3 v6] livepatch: add old_sympos as disambiguator field to klp_func Chris J Arges
2015-11-13 16:23                       ` [PATCH 2/3 v6] livepatch: add sympos as disambiguator field to klp_reloc Chris J Arges
2015-11-13 16:23                       ` [PATCH 3/3 v6] livepatch: function,sympos scheme in livepatch sysfs directory Chris J Arges
     [not found]                       ` <1447693391-10065-1-git-send-email-chris.j.arges@canonical.com>
2015-11-16 17:03                         ` [PATCH 1/3 v7] livepatch: add old_sympos as disambiguator field to klp_func Chris J Arges
2015-11-16 21:59                           ` Jiri Kosina
2015-11-17 14:29                             ` Chris J Arges
2015-11-19 10:02                               ` Jiri Kosina
2015-11-16 17:03                         ` [PATCH 2/3 v7] livepatch: add sympos as disambiguator field to klp_reloc Chris J Arges
2015-11-18  9:56                           ` Miroslav Benes
2015-11-18 14:01                             ` Josh Poimboeuf
2015-11-18 16:47                               ` Petr Mladek
2015-11-18 16:37                           ` Petr Mladek
2015-11-18 16:39                             ` Chris J Arges
2015-11-18 16:55                               ` Petr Mladek
2015-11-18 20:34                                 ` Jiri Kosina
2015-11-16 17:03                         ` [PATCH 3/3 v7] livepatch: function,sympos scheme in livepatch sysfs directory Chris J Arges
2015-11-20 17:25                         ` [PATCH 0/3 v8] livepatch: disambiguate symbols with the same name Chris J Arges
2015-11-20 17:25                           ` [PATCH 1/3 v8] livepatch: add old_sympos as disambiguator field to klp_func Chris J Arges
2015-11-23  9:47                             ` Miroslav Benes
2015-11-20 17:25                           ` [PATCH 2/3 v8] livepatch: add sympos as disambiguator field to klp_reloc Chris J Arges
2015-11-23  9:52                             ` Miroslav Benes
2015-11-30 20:46                               ` Chris J Arges
2015-12-01  1:17                                 ` Josh Poimboeuf
2015-11-20 17:25                           ` [PATCH 3/3 v8] livepatch: function,sympos scheme in livepatch sysfs directory Chris J Arges
2015-11-23  9:47                             ` Miroslav Benes
2015-12-02  2:40                           ` [PATCH 0/3 v9] livepatch: disambiguate symbols with the same name Chris J Arges
2015-12-02  2:40                             ` [PATCH 1/3 v9] livepatch: add old_sympos as disambiguator field to klp_func Chris J Arges
2015-12-02  2:40                             ` [PATCH 2/3 v9] livepatch: add sympos as disambiguator field to klp_reloc Chris J Arges
2015-12-14 12:45                               ` Miroslav Benes
2015-12-02  2:40                             ` [PATCH 3/3 v9] livepatch: function,sympos scheme in livepatch sysfs directory Chris J Arges
2015-12-02 15:28                             ` [PATCH 0/3 v9] livepatch: disambiguate symbols with the same name Petr Mladek
2015-12-03 17:59                             ` Josh Poimboeuf
2015-12-03 22:04                             ` Jiri Kosina
2015-11-03 14:58           ` [PATCH v2] livepatch: old_name.number scheme in livepatch sysfs directory Josh Poimboeuf
2015-11-03 16:09             ` Miroslav Benes
2015-11-03 16:50               ` Josh Poimboeuf
2015-11-03 20:42                 ` Chris J Arges
2015-11-03 20:42                   ` Chris J Arges
2015-11-04  9:52                 ` Miroslav Benes
2015-11-04  9:52                   ` Miroslav Benes
2015-11-04 16:03                   ` Josh Poimboeuf
2015-11-04 16:17                     ` Chris J Arges
2015-11-04 16:17                       ` Chris J Arges
2015-11-05 15:18                     ` Miroslav Benes
2015-11-05 15:56                       ` Josh Poimboeuf
2015-11-05 16:07                         ` Chris J Arges
2015-11-09 16:16                         ` [PATCH v3] livepatch: old_name,number " Chris J Arges
2015-11-09 16:16                           ` Chris J Arges
2015-11-09 20:56                           ` Josh Poimboeuf
2015-11-09 23:01                             ` Chris J Arges
2015-11-09 23:01                               ` Chris J Arges
2015-11-10  4:54                               ` Josh Poimboeuf
2015-11-10  8:49                                 ` Miroslav Benes
2015-11-10 13:40                                   ` Josh Poimboeuf
2015-11-10 13:40                                     ` Josh Poimboeuf
2015-11-10  9:02                           ` Miroslav Benes

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