linux-kernel - [PATCH v5 2/3] livepatch: move transition "complete" notice into klp_complete

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 31 Aug 2017 10:53:52 -0400
From:   Joe Lawrence <joe.lawrence@...hat.com>
To:     live-patching@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Josh Poimboeuf <jpoimboe@...hat.com>, Jessica Yu <jeyu@...nel.org>,
        Jiri Kosina <jikos@...nel.org>,
        Miroslav Benes <mbenes@...e.cz>,
        Petr Mladek <pmladek@...e.com>,
        Chris J Arges <chris.j.arges@...onical.com>
Subject: [PATCH v5 2/3] livepatch: move transition "complete" notice into klp_complete_transition()

klp_complete_transition() performs a bit of housework before a
transition to KLP_PATCHED or KLP_UNPATCHED is actually completed
(including post-(un)patch callbacks).  To be consistent, move the
transition "complete" kernel log notice out of
klp_try_complete_transition() and into klp_complete_transition().

Suggested-by: Josh Poimboeuf <jpoimboe@...hat.com>
Signed-off-by: Joe Lawrence <joe.lawrence@...hat.com>
---
 kernel/livepatch/transition.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/livepatch/transition.c b/kernel/livepatch/transition.c
index 7bf55b7f3687..53887f0bca10 100644
--- a/kernel/livepatch/transition.c
+++ b/kernel/livepatch/transition.c
@@ -136,6 +136,9 @@ static void klp_complete_transition(void)
 			klp_post_unpatch_callback(obj);
 	}
 
+	pr_notice("'%s': %s complete\n", klp_transition_patch->mod->name,
+		  klp_target_state == KLP_PATCHED ? "patching" : "unpatching");
+
 	/*
 	 * See complementary comment in __klp_enable_patch() for why we
 	 * keep the module reference for immediate patches.
@@ -423,9 +426,6 @@ void klp_try_complete_transition(void)
 	}
 
 success:
-	pr_notice("'%s': %s complete\n", klp_transition_patch->mod->name,
-		  klp_target_state == KLP_PATCHED ? "patching" : "unpatching");
-
 	/* we're done, now cleanup the data structures */
 	klp_complete_transition();
 }
-- 
1.8.3.1