linux-kernel - Re: [PATCH v3 0/2] Improve handling of the __klp

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Message-ID: <qe6bxwov3hkii7dzwqjgs26m3pt6zbmoevw72voxry7ialaivv@q7mwkdjpnhpz>
Date: Fri, 30 Jan 2026 15:46:24 -0500
From: Aaron Tomlin <atomlin@...mlin.com>
To: Petr Pavlu <petr.pavlu@...e.com>
Cc: Josh Poimboeuf <jpoimboe@...nel.org>, Jiri Kosina <jikos@...nel.org>, 
	Miroslav Benes <mbenes@...e.cz>, Petr Mladek <pmladek@...e.com>, 
	Joe Lawrence <joe.lawrence@...hat.com>, Luis Chamberlain <mcgrof@...nel.org>, 
	Daniel Gomez <da.gomez@...nel.org>, Sami Tolvanen <samitolvanen@...gle.com>, 
	Peter Zijlstra <peterz@...radead.org>, live-patching@...r.kernel.org, linux-modules@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/2] Improve handling of the __klp_{objects,funcs}
 sections in modules

On Fri, Jan 23, 2026 at 11:26:55AM +0100, Petr Pavlu wrote:
> Changes since v2 [1]:
> - Generalize the helper function that locates __klp_objects in a module
>   to allow it to find any data in other sections as well.
> 
> Changes since v1 [2]:
> - Generalize the helper function that locates __klp_objects in a module
>   to allow it to find objects in other sections as well.
> 
> [1] https://lore.kernel.org/linux-modules/20260121082842.3050453-1-petr.pavlu@suse.com/
> [2] https://lore.kernel.org/linux-modules/20260114123056.2045816-1-petr.pavlu@suse.com/
> 
> Petr Pavlu (2):
>   livepatch: Fix having __klp_objects relics in non-livepatch modules
>   livepatch: Free klp_{object,func}_ext data after initialization
> 
>  include/linux/livepatch.h           |  3 +++
>  kernel/livepatch/core.c             | 19 +++++++++++++++++++
>  scripts/livepatch/init.c            | 20 +++++++++-----------
>  scripts/module.lds.S                |  9 ++-------
>  tools/objtool/check.c               |  2 +-
>  tools/objtool/include/objtool/klp.h | 10 +++++-----
>  tools/objtool/klp-diff.c            |  2 +-
>  7 files changed, 40 insertions(+), 25 deletions(-)
> 
> 
> base-commit: 0f61b1860cc3f52aef9036d7235ed1f017632193
> -- 
> 2.52.0
> 

Reviewed-by: Aaron Tomlin <atomlin@...mlin.com>

-- 
Aaron Tomlin

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