Messages in this thread | | | From | Dominik Brodowski <> | Subject | [PATCH 0/2] x86/entry: xorq->xorl; idtentry size reduction | Date | Wed, 14 Feb 2018 18:59:22 +0100 |
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These two patches apply on top of tip/pti.
The first one cuts the idtentry macro as suggested by Linus. I'm not sure whether this patch yet needs an explicit SOB by him though. It was previously sent as RFC / testing only patch "8/7" to the previous x86/entry-related series, cf. http://lkml.kernel.org/r/20180211104949.12992-9-linux@dominikbrodowski.net
The other one replaces the xorq-based register cleaning with an equivalent xorl-based version, which is supposed to be faster on some architectures.
Thanks, Dominik
Dominik Brodowski (2): x86/entry: reduce static footprint of idtentry x86/entry/64: use xorl for register clearing
arch/x86/entry/calling.h | 27 +++++++++++++------- arch/x86/entry/entry_64.S | 18 ++++++-------- arch/x86/entry/entry_64_compat.S | 54 ++++++++++++++++++++-------------------- 3 files changed, 53 insertions(+), 46 deletions(-)
-- 2.16.1
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