Re: [PATCH v9 4/4] Documentation: document the preferred tag checking mode feature

On Tue, Jul 13, 2021 at 10:53 AM Will Deacon [off-list ref] wrote:

On Fri, Jul 02, 2021 at 12:41:10PM -0700, Peter Collingbourne wrote:

quoted

Document the functionality added in the previous patches.

Link: https://linux-review.googlesource.com/id/I48217cc3e8b8da33abc08cbaddc11cf4360a1b86
Signed-off-by: Peter Collingbourne <redacted>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
---
v9:
- add documentation for sysfs node under Documentation/ABI

 .../ABI/testing/sysfs-devices-system-cpu      | 16 +++++++
 .../arm64/memory-tagging-extension.rst        | 48 ++++++++++++++++---
 2 files changed, 57 insertions(+), 7 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index fe13baa53c59..195587b7c7ec 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu

@@ -640,3 +640,19 @@ Description:     SPURR ticks for cpuX when it was idle.

              This sysfs interface exposes the number of SPURR ticks
              for cpuX when it was idle.
+
+What:                /sys/devices/system/cpu/cpuX/mte_tcf_preferred
+Date:                Jul 2021

nit: Seems like the other entries here spell out the full name of the month.

FWIW, it seems to vary based on which part of the file you're looking
at (e.g. some entries near the end abbreviate it, so I followed that
pattern since my addition was at the end). But it looks like it isn't
abbreviated in the majority of entries, so I changed it.

With that fixed:

Acked-by: Will Deacon <will@kernel.org>

Thanks.

Peter

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