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authorJonathan Lemon <jonathan.lemon@gmail.com>2022-05-07 01:37:39 +0300
committerJakub Kicinski <kuba@kernel.org>2022-05-10 03:18:41 +0300
commit4bd46bb037f8e1883dbe1fc9e79896b7f885db3f (patch)
treef2ddc804838f2febde41d71db14d68568e4f242d /drivers/ptp
parent51ca86b4c9c7c75f5630fa0dbe5f8f0bd98e3c3e (diff)
downloadlinux-4bd46bb037f8e1883dbe1fc9e79896b7f885db3f.tar.xz
ptp: ocp: Use DIV64_U64_ROUND_UP for rounding.
The initial code used roundup() to round the starting time to a multiple of a period. This generated an error on 32-bit systems, so was replaced with DIV_ROUND_UP_ULL(). However, this truncates to 32-bits on a 64-bit system. Replace with DIV64_U64_ROUND_UP() instead. Fixes: b325af3cfab9 ("ptp: ocp: Add signal generators and update sysfs nodes") Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com> Link: https://lore.kernel.org/r/20220506223739.1930-2-jonathan.lemon@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/ptp')
-rw-r--r--drivers/ptp/ptp_ocp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c
index 0feaa4b45317..dd45471f6780 100644
--- a/drivers/ptp/ptp_ocp.c
+++ b/drivers/ptp/ptp_ocp.c
@@ -1557,7 +1557,7 @@ ptp_ocp_signal_set(struct ptp_ocp *bp, int gen, struct ptp_ocp_signal *s)
start_ns = ktime_set(ts.tv_sec, ts.tv_nsec) + NSEC_PER_MSEC;
if (!s->start) {
/* roundup() does not work on 32-bit systems */
- s->start = DIV_ROUND_UP_ULL(start_ns, s->period);
+ s->start = DIV64_U64_ROUND_UP(start_ns, s->period);
s->start = ktime_add(s->start, s->phase);
}