git: 6fde066264e5 - main - Mark usage function as __dead2 in programs where it does not return

The branch main has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=6fde066264e5cb784470e05c0ab6acbb16057bbc

commit 6fde066264e5cb784470e05c0ab6acbb16057bbc
Author:     Alfonso Gregory <gfunni234@gmail.com>
AuthorDate: 2023-07-07 16:39:23 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2023-07-07 16:45:17 +0000

    Mark usage function as __dead2 in programs where it does not return
    
    In most cases, usage does not return, so mark them as __dead2. For the
    cases where they do return, they have not been marked __dead2.
    
    Reviewed by: imp
    Pull Request: https://github.com/freebsd/freebsd-src/pull/735
---
 tests/sys/cddl/zfs/bin/file_write.c | 2 +-
 tests/sys/netinet/libalias/perf.c   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/sys/cddl/zfs/bin/file_write.c b/tests/sys/cddl/zfs/bin/file_write.c
index b1ef836879e6..07ba6503dff8 100644
--- a/tests/sys/cddl/zfs/bin/file_write.c
+++ b/tests/sys/cddl/zfs/bin/file_write.c
@@ -38,7 +38,7 @@ static unsigned char bigbuffer[BIGBUFFERSIZE];
  * See header file for defaults.
  */
 
-static void usage(void);
+static void usage(void) __dead2;
 static char *execname;
 
 int
diff --git a/tests/sys/netinet/libalias/perf.c b/tests/sys/netinet/libalias/perf.c
index f238846bdb16..07e73612a6dd 100644
--- a/tests/sys/netinet/libalias/perf.c
+++ b/tests/sys/netinet/libalias/perf.c
@@ -38,7 +38,7 @@
 #include "util.h"
 #include <alias.h>
 
-static void usage(void);
+static void usage(void) __dead2;
 
 #define	timevalcmp(tv, uv, cmp)			\
 	(((tv).tv_sec == (uv).tv_sec)		\