diff --git a/sys/amd64/linux/linux_proto.h b/sys/amd64/linux/linux_proto.h
index 2af541f71772..0d6e204d96c3 100644
--- a/sys/amd64/linux/linux_proto.h
+++ b/sys/amd64/linux/linux_proto.h
@@ -1684,62 +1684,6 @@ int	linux_faccessat2(struct thread *, struct linux_faccessat2_args *);
 int	linux_process_madvise(struct thread *, struct linux_process_madvise_args *);
 int	linux_epoll_pwait2(struct thread *, struct linux_epoll_pwait2_args *);
 int	linux_mount_setattr(struct thread *, struct linux_mount_setattr_args *);
-
-#ifdef COMPAT_43
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_43 */
-
-
-#ifdef COMPAT_FREEBSD4
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD4 */
-
-
-#ifdef COMPAT_FREEBSD6
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD6 */
-
-
-#ifdef COMPAT_FREEBSD7
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD7 */
-
-
-#ifdef COMPAT_FREEBSD10
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD10 */
-
-
-#ifdef COMPAT_FREEBSD11
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD11 */
-
-
-#ifdef COMPAT_FREEBSD12
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD12 */
-
-
-#ifdef COMPAT_FREEBSD13
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD13 */
-
 #define	LINUX_SYS_AUE_linux_open	AUE_OPEN_RWTC
 #define	LINUX_SYS_AUE_linux_newstat	AUE_STAT
 #define	LINUX_SYS_AUE_linux_newfstat	AUE_FSTAT
diff --git a/sys/amd64/linux32/linux32_proto.h b/sys/amd64/linux32/linux32_proto.h
index 99145b357da9..d8ab90513e1d 100644
--- a/sys/amd64/linux32/linux32_proto.h
+++ b/sys/amd64/linux32/linux32_proto.h
@@ -2037,62 +2037,6 @@ int	linux_faccessat2(struct thread *, struct linux_faccessat2_args *);
 int	linux_process_madvise(struct thread *, struct linux_process_madvise_args *);
 int	linux_epoll_pwait2(struct thread *, struct linux_epoll_pwait2_args *);
 int	linux_mount_setattr(struct thread *, struct linux_mount_setattr_args *);
-
-#ifdef COMPAT_43
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_43 */
-
-
-#ifdef COMPAT_FREEBSD4
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD4 */
-
-
-#ifdef COMPAT_FREEBSD6
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD6 */
-
-
-#ifdef COMPAT_FREEBSD7
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD7 */
-
-
-#ifdef COMPAT_FREEBSD10
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD10 */
-
-
-#ifdef COMPAT_FREEBSD11
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD11 */
-
-
-#ifdef COMPAT_FREEBSD12
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD12 */
-
-
-#ifdef COMPAT_FREEBSD13
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD13 */
-
 #define	LINUX32_SYS_AUE_linux_exit	AUE_EXIT
 #define	LINUX32_SYS_AUE_linux_fork	AUE_FORK
 #define	LINUX32_SYS_AUE_linux_open	AUE_OPEN_RWTC
diff --git a/sys/arm64/linux/linux_proto.h b/sys/arm64/linux/linux_proto.h
index fcec23492466..5f664cf787c2 100644
--- a/sys/arm64/linux/linux_proto.h
+++ b/sys/arm64/linux/linux_proto.h
@@ -1445,62 +1445,6 @@ int	linux_faccessat2(struct thread *, struct linux_faccessat2_args *);
 int	linux_process_madvise(struct thread *, struct linux_process_madvise_args *);
 int	linux_epoll_pwait2(struct thread *, struct linux_epoll_pwait2_args *);
 int	linux_mount_setattr(struct thread *, struct linux_mount_setattr_args *);
-
-#ifdef COMPAT_43
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_43 */
-
-
-#ifdef COMPAT_FREEBSD4
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD4 */
-
-
-#ifdef COMPAT_FREEBSD6
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD6 */
-
-
-#ifdef COMPAT_FREEBSD7
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD7 */
-
-
-#ifdef COMPAT_FREEBSD10
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD10 */
-
-
-#ifdef COMPAT_FREEBSD11
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD11 */
-
-
-#ifdef COMPAT_FREEBSD12
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD12 */
-
-
-#ifdef COMPAT_FREEBSD13
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD13 */
-
 #define	LINUX_SYS_AUE_linux_setxattr	AUE_NULL
 #define	LINUX_SYS_AUE_linux_lsetxattr	AUE_NULL
 #define	LINUX_SYS_AUE_linux_fsetxattr	AUE_NULL
diff --git a/sys/i386/linux/linux_proto.h b/sys/i386/linux/linux_proto.h
index 15dcc75593c2..7fda65b2c8c3 100644
--- a/sys/i386/linux/linux_proto.h
+++ b/sys/i386/linux/linux_proto.h
@@ -2032,62 +2032,6 @@ int	linux_faccessat2(struct thread *, struct linux_faccessat2_args *);
 int	linux_process_madvise(struct thread *, struct linux_process_madvise_args *);
 int	linux_epoll_pwait2(struct thread *, struct linux_epoll_pwait2_args *);
 int	linux_mount_setattr(struct thread *, struct linux_mount_setattr_args *);
-
-#ifdef COMPAT_43
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_43 */
-
-
-#ifdef COMPAT_FREEBSD4
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD4 */
-
-
-#ifdef COMPAT_FREEBSD6
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD6 */
-
-
-#ifdef COMPAT_FREEBSD7
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD7 */
-
-
-#ifdef COMPAT_FREEBSD10
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD10 */
-
-
-#ifdef COMPAT_FREEBSD11
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD11 */
-
-
-#ifdef COMPAT_FREEBSD12
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD12 */
-
-
-#ifdef COMPAT_FREEBSD13
-
-#define	nosys	linux_nosys
-
-#endif /* COMPAT_FREEBSD13 */
-
 #define	LINUX_SYS_AUE_linux_exit	AUE_EXIT
 #define	LINUX_SYS_AUE_linux_fork	AUE_FORK
 #define	LINUX_SYS_AUE_linux_open	AUE_OPEN_RWTC