linux-kernel - [PATCH 0/2] powerpc: Fix livepatch module re-patching issue

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Message-Id: <cover.1674617130.git.jpoimboe@kernel.org>
Date:   Tue, 24 Jan 2023 19:38:03 -0800
From:   Josh Poimboeuf <jpoimboe@...nel.org>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     live-patching@...r.kernel.org, Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Song Liu <song@...nel.org>
Subject: [PATCH 0/2] powerpc: Fix livepatch module re-patching issue

Fix a livepatch bug seen when reloading a patched module.

This is the powerpc counterpart to Song Liu's fix for a similar issue on
x86:

  https://lkml.kernel.org/lkml/20230121004945.697003-2-song@kernel.org

Josh Poimboeuf (2):
  powerpc/module_64: Improve restore_r2() return semantics
  powerpc/module_64: Fix "expected nop" error on module re-patching

 arch/powerpc/kernel/module_64.c | 29 ++++++++++++++++++-----------
 1 file changed, 18 insertions(+), 11 deletions(-)

-- 
2.39.0