[PATCH 0/6] nfit/ars: Improve polling and short-ARS execution

From: Dan Williams
Date: Thu Feb 14 2019 - 15:22:45 EST

Here is a small pile of updates to better coordinate the Linux ARS state
machine with platform-BIOS implementations. Specifically, take advantage
of opportunities to run short-ARS whenever the ARS interface is found to
be idle at init, always run short-ARS even if no_init_ars is specified,
allow root to reset the exponential backoff polling interval for ARS
completion, and protect the kernel against the consumption of stale ARS


Dan Williams (6):
nfit/ars: Attempt a short-ARS whenever the ARS state is idle at boot
nfit/ars: Attempt short-ARS even in the no_init_ars case
nfit/ars: Allow root to busy-poll the ARS state machine
nfit/ars: Remove ars_start_flags
nfit/ars: Introduce scrub_flags
nfit/ars: Avoid stale ARS results

drivers/acpi/nfit/core.c | 67 ++++++++++++++++++++++++++++++++--------------
drivers/acpi/nfit/nfit.h | 10 +++++--
2 files changed, 53 insertions(+), 24 deletions(-)