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[216.228.112.21]) by smtp.gmail.com with ESMTPSA id k70sm648127pje.14.2019.07.30.22.46.33 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Tue, 30 Jul 2019 22:46:33 -0700 (PDT) From: john.hubbard@gmail.com X-Google-Original-From: jhubbard@nvidia.com To: "H . Peter Anvin" Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, LKML , John Hubbard Subject: [PATCH v2 0/1] x86/boot: save fields explicitly, zero out everything else Date: Tue, 30 Jul 2019 22:46:26 -0700 Message-Id: <20190731054627.5627-1-jhubbard@nvidia.com> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: John Hubbard Hi, This uses the "save each field explicitly" approach that we discussed during the first review [1]. As in [1], this is motivated by a desire to clear the compiler warnings when building with gcc 9. This is difficult to properly test. I've done a basic boot test, but if there are actually errors in which items get zeroed or not, I don't have a good test to uncover that. [1] https://lore.kernel.org/r/alpine.DEB.2.21.1907260036500.1791@nanos.tec.linutronix.de John Hubbard (1): x86/boot: save fields explicitly, zero out everything else arch/x86/include/asm/bootparam_utils.h | 62 +++++++++++++++++++------- 1 file changed, 47 insertions(+), 15 deletions(-) -- 2.22.0