selftests/ptp: Fix timestamp printf format for PTP_SYS_OFFSET
authorAlex Maftei <alex.maftei@amd.com>
Thu, 15 Jun 2023 08:34:04 +0000 (09:34 +0100)
committerJakub Kicinski <kuba@kernel.org>
Thu, 15 Jun 2023 22:07:23 +0000 (15:07 -0700)
commit76a4c8b82938bc5020b67663db41f451684bf327
tree4de7c5f8e0e22308729b1d77773927c3b6e920c7
parent30134b7c47bd28fdb4db4d12aef824e0579cfee4
selftests/ptp: Fix timestamp printf format for PTP_SYS_OFFSET

Previously, timestamps were printed using "%lld.%u" which is incorrect
for nanosecond values lower than 100,000,000 as they're fractional
digits, therefore leading zeros are meaningful.

This patch changes the format strings to "%lld.%09u" in order to add
leading zeros to the nanosecond value.

Fixes: 568ebc5985f5 ("ptp: add the PTP_SYS_OFFSET ioctl to the testptp program")
Fixes: 4ec54f95736f ("ptp: Fix compiler warnings in the testptp utility")
Fixes: 6ab0e475f1f3 ("Documentation: fix misc. warnings")
Signed-off-by: Alex Maftei <alex.maftei@amd.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Link: https://lore.kernel.org/r/20230615083404.57112-1-alex.maftei@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
tools/testing/selftests/ptp/testptp.c