diff --git a/sys/cddl/dev/kinst/kinst.h b/sys/cddl/dev/kinst/kinst.h
index 390a2d1c13bf..f0811a4a88d8 100644
--- a/sys/cddl/dev/kinst/kinst.h
+++ b/sys/cddl/dev/kinst/kinst.h
@@ -1,112 +1,112 @@
 /*
  * SPDX-License-Identifier: CDDL 1.0
  *
  * Copyright (c) 2022 Christos Margiolis <christos@FreeBSD.org>
  * Copyright (c) 2023 The FreeBSD Foundation
  *
  * Portions of this software were developed by Christos Margiolis
  * <christos@FreeBSD.org> under sponsorship from the FreeBSD Foundation.
  */
 
 #ifndef _KINST_H_
 #define _KINST_H_
 
 #include <sys/dtrace.h>
 
 typedef struct {
 	char	kpd_func[DTRACE_FUNCNAMELEN];
 	char	kpd_mod[DTRACE_MODNAMELEN];
 	int	kpd_off;
 } dtrace_kinst_probedesc_t;
 
 #define KINSTIOC_MAKEPROBE	_IOW('k', 1, dtrace_kinst_probedesc_t)
 
 #ifdef _KERNEL
 
 #include <sys/queue.h>
 
 #include "kinst_isa.h"
 
 struct kinst_probe {
 	LIST_ENTRY(kinst_probe)	kp_hashnext;
 	const char		*kp_func;
 	char			kp_name[16];
 	dtrace_id_t		kp_id;
 	kinst_patchval_t	kp_patchval;
 	kinst_patchval_t	kp_savedval;
 	kinst_patchval_t	*kp_patchpoint;
 	uint8_t			*kp_tramp;
 
 	struct kinst_probe_md	kp_md;
 };
 
 struct kinst_cpu_state {
 	/*
 	 * kinst uses a breakpoint to return from the trampoline and resume
 	 * execution. To do this safely, kinst implements a per-CPU state
 	 * machine; the state is set to KINST_PROBE_FIRED for the duration of
 	 * the trampoline execution (i.e from the time we transfer execution to
 	 * it, until we return). Upon return, the state is set to
 	 * KINST_PROBE_ARMED to indicate that a probe is not currently firing.
 	 * All CPUs have their state initialized to KINST_PROBE_ARMED when
 	 * kinst is loaded.
 	 */
 	enum {
 		KINST_PROBE_ARMED,
 		KINST_PROBE_FIRED,
 	} state;
 	/*
 	 * Points to the probe whose trampoline we're currently executing.
 	 */
-	struct kinst_probe *kp;
+	const struct kinst_probe *kp;
 	/*
 	 * Because we execute trampolines with interrupts disabled, we have to
 	 * cache the CPU's status in order to restore it when we return from
 	 * the trampoline.
 	 */
 	uint64_t status;
 };
 
 LIST_HEAD(kinst_probe_list, kinst_probe);
 
 extern struct kinst_probe_list	*kinst_probetab;
 
 #define KINST_PROBETAB_MAX	0x8000	/* 32k */
 #define KINST_ADDR2NDX(addr)	(((uintptr_t)(addr)) & (KINST_PROBETAB_MAX - 1))
 #define KINST_GETPROBE(i) 	(&kinst_probetab[KINST_ADDR2NDX(i)])
 
 struct linker_file;
 struct linker_symval;
 
 /* kinst.c */
 volatile void	*kinst_memcpy(volatile void *, volatile const void *, size_t);
 bool	kinst_excluded(const char *);
 void	kinst_probe_create(struct kinst_probe *, struct linker_file *);
 
 /* arch/kinst_isa.c */
 int	kinst_invop(uintptr_t, struct trapframe *, uintptr_t);
 void	kinst_patch_tracepoint(struct kinst_probe *, kinst_patchval_t);
 int	kinst_make_probe(struct linker_file *, int, struct linker_symval *,
 	    void *);
 int	kinst_md_init(void);
 void	kinst_md_deinit(void);
 bool	kinst_md_excluded(const char *);
 
 /* trampoline.c */
 int	kinst_trampoline_init(void);
 int	kinst_trampoline_deinit(void);
 uint8_t	*kinst_trampoline_alloc(int);
 void	kinst_trampoline_dealloc(uint8_t *);
 
 #ifdef MALLOC_DECLARE
 MALLOC_DECLARE(M_KINST);
 #endif /* MALLOC_DECLARE */
 
 #define KINST_LOG_HELPER(fmt, ...)	\
 	printf("%s:%d: " fmt "%s\n", __func__, __LINE__, __VA_ARGS__)
 #define KINST_LOG(...)			\
 	KINST_LOG_HELPER(__VA_ARGS__, "")
 
 #endif /* _KERNEL */
 
 #endif /* _KINST_H_ */