LinuxKPI: timer KPI *_timer -> timer_*

del_timer() got renamed to timer_delete() approximately in Linux 6.2
(similar for *_sync and likely others).
Keep the old functions as compat; unclear when we can gc them.
We should also re-define them with a linuxkpi_ prefix to avoid possible
conflicts in the future if we do a full pass over this at some point.

Sponsored by:	The FreeBSD Foundation (intiially)
MFC after:	3 days
X-MFC;		preserve symbols, not inline
Reviewed by:	dumbbell
Differential Revision:	https://reviews.freebsd.org/D52074

Author: Bjoern A. Zeeb

sys/compat/linuxkpi/common/include/linux/timer.h

@@ -84,11 +84,23 @@ extern unsigned long linux_timer_hz_mask;
 extern int mod_timer(struct timer_list *, unsigned long);
 extern void add_timer(struct timer_list *);
 extern void add_timer_on(struct timer_list *, int cpu);
-extern int del_timer(struct timer_list *);
-extern int del_timer_sync(struct timer_list *);
+
+extern int timer_delete(struct timer_list *);
 extern int timer_delete_sync(struct timer_list *);
 extern int timer_shutdown_sync(struct timer_list *);
 
+static inline int
+del_timer(struct timer_list *tl)
+{
+	return (timer_delete(tl));
+}
+
+static inline int
+del_timer_sync(struct timer_list *tl)
+{
+	return (timer_delete_sync(tl));
+}
+
 #define	timer_pending(timer)	callout_pending(&(timer)->callout)
 #define	round_jiffies(j)	\
 	((unsigned long)(((j) + linux_timer_hz_mask) & ~linux_timer_hz_mask))

sys/compat/linuxkpi/common/src/linux_compat.c

@@ -2120,7 +2120,7 @@ add_timer_on(struct timer_list *timer, int cpu)
 }
 
 int
-del_timer(struct timer_list *timer)
+timer_delete(struct timer_list *timer)
 {
 
 	if (callout_stop(&(timer)->callout) == -1)
@@ -2129,21 +2129,14 @@ del_timer(struct timer_list *timer)
 }
 
 int
-del_timer_sync(struct timer_list *timer)
+timer_delete_sync(struct timer_list *timer)
 {
 
 	if (callout_drain(&(timer)->callout) == -1)
 		return (0);
 	return (1);
 }
 
-int
-timer_delete_sync(struct timer_list *timer)
-{
-
-	return (del_timer_sync(timer));
-}
-
 int
 timer_shutdown_sync(struct timer_list *timer)
 {