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authorAlex Maftei <alex.maftei@amd.com>2023-06-15 10:34:04 +0200
committerJakub Kicinski <kuba@kernel.org>2023-06-16 00:07:23 +0200
commit76a4c8b82938bc5020b67663db41f451684bf327 (patch)
tree4de7c5f8e0e22308729b1d77773927c3b6e920c7 /tools/testing
parentnet: ethernet: stmicro: stmmac: fix possible memory leak in __stmmac_open (diff)
downloadlinux-76a4c8b82938bc5020b67663db41f451684bf327.tar.xz
linux-76a4c8b82938bc5020b67663db41f451684bf327.zip
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>
Diffstat (limited to 'tools/testing')
-rw-r--r--tools/testing/selftests/ptp/testptp.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/testing/selftests/ptp/testptp.c b/tools/testing/selftests/ptp/testptp.c
index 198ad5f32187..cfa9562f3cd8 100644
--- a/tools/testing/selftests/ptp/testptp.c
+++ b/tools/testing/selftests/ptp/testptp.c
@@ -502,11 +502,11 @@ int main(int argc, char *argv[])
interval = t2 - t1;
offset = (t2 + t1) / 2 - tp;
- printf("system time: %lld.%u\n",
+ printf("system time: %lld.%09u\n",
(pct+2*i)->sec, (pct+2*i)->nsec);
- printf("phc time: %lld.%u\n",
+ printf("phc time: %lld.%09u\n",
(pct+2*i+1)->sec, (pct+2*i+1)->nsec);
- printf("system time: %lld.%u\n",
+ printf("system time: %lld.%09u\n",
(pct+2*i+2)->sec, (pct+2*i+2)->nsec);
printf("system/phc clock time offset is %" PRId64 " ns\n"
"system clock time delay is %" PRId64 " ns\n",