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Wojtek Wasko bef3a83a9a testptp: Add option to open PHC in readonly mode 
[ Upstream commit 76868642e4 ]

PTP Hardware Clocks no longer require WRITE permission to perform
readonly operations, such as listing device capabilities or listening to
EXTTS events once they have been enabled by a process with WRITE
permissions.

Add '-r' option to testptp to open the PHC in readonly mode instead of
the default read-write mode. Skip enabling EXTTS if readonly mode is
requested.

Acked-by: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: Wojtek Wasko <wwasko@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-02-06 16:41:52 +01:00
..
fault-injection docs: fault-injection: convert docs to ReST and rename to *.rst 2019-06-14 14:21:07 -06:00
ktest ktest.pl: Fix uninitialized var in config-bisect.pl 2026-01-19 13:09:49 +01:00
kunit kunit: tool: Import missing importlib.abc 2022-02-23 12:03:04 +01:00
nvdimm tools/testing/nvdimm: Use per-DIMM device handle 2026-01-19 13:09:52 +01:00
radix-tree idr: fix idr_alloc() returning an ID out of range 2026-01-19 13:10:02 +01:00
scatterlist Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
selftests testptp: Add option to open PHC in readonly mode 2026-02-06 16:41:52 +01:00
vsock vsock/test: add a final full barrier after run all tests 2026-02-06 16:41:46 +01:00