linux-kernel - [PATCH v2 0/1] x86/boot: save fields explicitly, zero out everything else

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Message-Id: <20190731054627.5627-1-jhubbard@nvidia.com>
Date:   Tue, 30 Jul 2019 22:46:26 -0700
From:   john.hubbard@...il.com
To:     "H . Peter Anvin" <hpa@...or.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, LKML <linux-kernel@...r.kernel.org>,
        John Hubbard <jhubbard@...dia.com>
Subject: [PATCH v2 0/1] x86/boot: save fields explicitly, zero out everything else

From: John Hubbard <jhubbard@...dia.com>

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