2021-03-04 22:03:07

by Marc Kleine-Budde

Subject: [PATCH] time: timecounter_cyc2time(): mark 1st argument (struct timecounter) as const

As the timecounter is not modified in this function, mark it as const.

Signed-off-by: Marc Kleine-Budde <[email protected]>
---
include/linux/timecounter.h | 2 +-
kernel/time/timecounter.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/timecounter.h b/include/linux/timecounter.h
index 754b74a2167f..c6540ceea143 100644
--- a/include/linux/timecounter.h
+++ b/include/linux/timecounter.h
@@ -124,7 +124,7 @@ extern u64 timecounter_read(struct timecounter *tc);
* This allows conversion of cycle counter values which were generated
* in the past.
*/
-extern u64 timecounter_cyc2time(struct timecounter *tc,
+extern u64 timecounter_cyc2time(const struct timecounter *tc,
u64 cycle_tstamp);

#endif
diff --git a/kernel/time/timecounter.c b/kernel/time/timecounter.c
index 85b98e727306..e6285288d765 100644
--- a/kernel/time/timecounter.c
+++ b/kernel/time/timecounter.c
@@ -76,7 +76,7 @@ static u64 cc_cyc2ns_backwards(const struct cyclecounter *cc,
return ns;
}

-u64 timecounter_cyc2time(struct timecounter *tc,
+u64 timecounter_cyc2time(const struct timecounter *tc,
u64 cycle_tstamp)
{
u64 delta = (cycle_tstamp - tc->cycle_last) & tc->cc->mask;
--
2.30.1

2021-04-16 19:41:44

by tip-bot2 for Alexey Makhalov

Subject: [tip: timers/core] time/timecounter: Mark 1st argument of timecounter_cyc2time() as const

The following commit has been merged into the timers/core branch of tip:

Commit-ID: 07ff4aed015c564d03fd518d2fb54e5e6948903c
Gitweb: https://git.kernel.org/tip/07ff4aed015c564d03fd518d2fb54e5e6948903c
Author: Marc Kleine-Budde <[email protected]>
AuthorDate: Wed, 03 Mar 2021 11:35:44 +01:00
Committer: Thomas Gleixner <[email protected]>
CommitterDate: Fri, 16 Apr 2021 21:03:50 +02:00

time/timecounter: Mark 1st argument of timecounter_cyc2time() as const

The timecounter is not modified in this function. Mark it as const.

Signed-off-by: Marc Kleine-Budde <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

---
include/linux/timecounter.h | 2 +-
kernel/time/timecounter.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/timecounter.h b/include/linux/timecounter.h
index 754b74a..c6540ce 100644
--- a/include/linux/timecounter.h
+++ b/include/linux/timecounter.h
@@ -124,7 +124,7 @@ extern u64 timecounter_read(struct timecounter *tc);
* This allows conversion of cycle counter values which were generated
* in the past.
*/
-extern u64 timecounter_cyc2time(struct timecounter *tc,
+extern u64 timecounter_cyc2time(const struct timecounter *tc,
u64 cycle_tstamp);

#endif
diff --git a/kernel/time/timecounter.c b/kernel/time/timecounter.c
index 85b98e7..e628528 100644
--- a/kernel/time/timecounter.c
+++ b/kernel/time/timecounter.c
@@ -76,7 +76,7 @@ static u64 cc_cyc2ns_backwards(const struct cyclecounter *cc,
return ns;
}

-u64 timecounter_cyc2time(struct timecounter *tc,
+u64 timecounter_cyc2time(const struct timecounter *tc,
u64 cycle_tstamp)
{
u64 delta = (cycle_tstamp - tc->cycle_last) & tc->cc->mask;