Date: Fri, 29 Apr 2016 12:26:49 -0400
From: Jessica Yu <jeyu@redhat.com>
To: Miroslav Benes <mbenes@suse.cz>
Cc: jpoimboe@redhat.com, jikos@kernel.org, pmladek@suse.com,
        live-patching@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: klp: make object/func-walking helpers more robust
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+++ Miroslav Benes [28/04/16 16:34 +0200]:
>Current object-walking helper checks the presence of obj->funcs to
>determine the end of objs array in klp_object structure. This is
>somewhat fragile because one can easily forget about funcs definition
>during livepatch creation. In such a case the livepatch module is
>successfully loaded and all objects after the incorrect one are omitted.
>This is very confusing. Let's make the helper more robust and check also
>for the other external member, name. Thus the helper correctly stops on
>an empty item of the array. We need to have a check for obj->funcs in
>klp_init_object() to make it work.
>
>The same applies to a func-walking helper.
>
>As a benefit we'll check for new_func member definition during the
>livepatch initialization. There is no such check anywhere in the code
>now.
>
>Signed-off-by: Miroslav Benes <mbenes@suse.cz>

Acked-by: Jessica Yu <jeyu@redhat.com>