commit f1b86caff32e7f3d34fd4151f885aedc405f90dd
author Peter A. Bigot <pab@pabigot.com> Fri Sep 18 16:24:57 2020 -0500
committer Carles Cufí <carles.cufi@nordicsemi.no> Fri Oct 02 11:29:14 2020 +0200
tree 4fc5fbb8321c9bc7ecee84b52233433b350c11a2
parent 16a40815200a4ab2587df6d6986d59b108bc7770

kernel: timer: update k_timer API for const correctness

API that takes k_timer structures but doesn't change data in them is
updated to const-qualify the underlying object, allowing information
to be retrieved from contexts where the containing object is
immutable.

Signed-off-by: Peter A. Bigot <pab@pabigot.com>

include/kernel.h

diff --git a/include/kernel.h b/include/kernel.h
index eea4e62..9c353d0 100644
--- a/include/kernel.h
+++ b/include/kernel.h
@@ -2024,9 +2024,9 @@
  *
  * @return The user data.
  */
-__syscall void *k_timer_user_data_get(struct k_timer *timer);
+__syscall void *k_timer_user_data_get(const struct k_timer *timer);
 
-static inline void *z_impl_k_timer_user_data_get(struct k_timer *timer)
+static inline void *z_impl_k_timer_user_data_get(const struct k_timer *timer)
 {
 	return timer->user_data;
 }

kernel/timer.c

diff --git a/kernel/timer.c b/kernel/timer.c
index cc1c918..d338c17 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -256,7 +256,7 @@
 }
 #include <syscalls/k_timer_expires_ticks_mrsh.c>
 
-static inline void *z_vrfy_k_timer_user_data_get(struct k_timer *timer)
+static inline void *z_vrfy_k_timer_user_data_get(const struct k_timer *timer)
 {
 	Z_OOPS(Z_SYSCALL_OBJ(timer, K_OBJ_TIMER));
 	return z_impl_k_timer_user_data_get(timer);