From mboxrd@z Thu Jan 1 00:00:00 1970 From: mark.rutland@arm.com (Mark Rutland) Date: Wed, 3 May 2017 16:09:32 +0100 Subject: [PATCH 0/6] arm64: inline assembly fixes + cleanup Message-ID: <1493824178-7399-1-git-send-email-mark.rutland@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Recent attempts to make our inline assembly more clang-friendly [1,2] made it clear that we have some latent problems. I've reviewed all the inline assembly under arch/arm64/, and this series fixes the issues that I noted. The series is based on the arm64 for-next/core branch. I've built the series with a Linaro 15,08 GCC 5.1.1 toolchain. I see no new warnings, and the result boots happily on Juno R1. The first four patches address latent bugs, with the final two patches improving consistency and compatibility with clang. I believe that this supersedes [2], with the GIC accessor having been fixed up by the recent sysreg rework. Thanks, Mark. [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2017-April/503535.html [2] http://lists.infradead.org/pipermail/linux-arm-kernel/2017-May/504072.html Mark Rutland (6): arm64: xchg: hazard against entire exchange variable arm64: ensure extension of smp_store_release value arm64: uaccess: ensure extension of access_ok() addr arm64: armv8_deprecated: ensure extension of addr arm64: atomic_lse: match asm register sizes arm64: uaccess: suppress spurious clang warning arch/arm64/include/asm/atomic_lse.h | 4 ++-- arch/arm64/include/asm/barrier.h | 20 +++++++++++++++----- arch/arm64/include/asm/cmpxchg.h | 2 +- arch/arm64/include/asm/uaccess.h | 7 ++++--- arch/arm64/kernel/armv8_deprecated.c | 3 ++- 5 files changed, 24 insertions(+), 12 deletions(-) -- 1.9.1