Use proper prototypes in struct boot_module_t

With clang 4.0.0, we are getting the following warnings about struct
boot_module_t in efi's boot_module.h:

In file included from sys/boot/efi/boot1/ufs_module.c:41:
sys/boot/efi/boot1/boot_module.h:67:14: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes]
        void (*init)();
                    ^
                     void
sys/boot/efi/boot1/boot_module.h:92:16: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes]
        void (*status)();
                      ^
                       void
sys/boot/efi/boot1/boot_module.h:95:24: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes]
        dev_info_t *(*devices)();
                              ^
                               void
3 errors generated.

Fix this by adding 'void' to the parameter lists.  No functional change.

Reviewed by:	emaste, imp, smh
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D9144

1 files changed, 3 insertions, 3 deletions

diff --git a/sys/boot/efi/boot1/boot_module.h b/sys/boot/efi/boot1/boot_module.h
index 296d5a67a10b..3a6b8270a5cc 100644
--- a/sys/boot/efi/boot1/boot_module.h
+++ b/sys/boot/efi/boot1/boot_module.h
@@ -64,7 +64,7 @@ typedef struct boot_module_t
 	const char *name;
 
 	/* init is the optional initialiser for the module. */
-	void (*init)();
+	void (*init)(void);
 
 	/*
 	 * probe checks to see if the module can handle dev.
@@ -89,10 +89,10 @@ typedef struct boot_module_t
 	    void **buf, size_t *bufsize);
 
 	/* status outputs information about the probed devices. */
-	void (*status)();
+	void (*status)(void);
 
 	/* valid devices as found by probe. */
-	dev_info_t *(*devices)();
+	dev_info_t *(*devices)(void);
 } boot_module_t;
 
 /* Standard boot modules. */