xen/keyhandler: address violations of MISRA C:2012 Rule 8.3 and drop bool_t

Change types in function definitions to be consistent with the
corresponding declarations.
This addresses violations of MISRA C:2012 Rule 8.3: "All declarations
of an object or function shall use the same names and type qualifiers".

No functional changes.

Signed-off-by: Federico Serafini <federico.serafini@bugseng.com>
[stefano: fix error in commit message]
Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>

xen/common/keyhandler.c

@@ -101,8 +101,8 @@ void handle_keypress(unsigned char key, struct cpu_user_regs *regs)
     }
 }
 
-void register_keyhandler(unsigned char key, keyhandler_fn_t fn,
-                         const char *desc, bool_t diagnostic)
+void register_keyhandler(unsigned char key, keyhandler_fn_t *fn,
+                         const char *desc, bool diagnostic)
 {
     BUG_ON(key >= ARRAY_SIZE(key_table)); /* Key in range? */
     ASSERT(!key_table[key].fn);           /* Clobbering something else? */
@@ -113,8 +113,8 @@ void register_keyhandler(unsigned char key, keyhandler_fn_t fn,
     key_table[key].diagnostic = diagnostic;
 }
 
-void register_irq_keyhandler(unsigned char key, irq_keyhandler_fn_t fn,
-                             const char *desc, bool_t diagnostic)
+void register_irq_keyhandler(unsigned char key, irq_keyhandler_fn_t *fn,
+                             const char *desc, bool diagnostic)
 {
     BUG_ON(key >= ARRAY_SIZE(key_table)); /* Key in range? */
     ASSERT(!key_table[key].irq_fn);       /* Clobbering something else? */

xen/include/xen/keyhandler.h

@@ -39,11 +39,11 @@ void initialize_keytable(void);
 void register_keyhandler(unsigned char key,
                          keyhandler_fn_t *fn,
                          const char *desc,
-                         bool_t diagnostic);
+                         bool diagnostic);
 void register_irq_keyhandler(unsigned char key,
                              irq_keyhandler_fn_t *fn,
                              const char *desc,
-                             bool_t diagnostic);
+                             bool diagnostic);
 
 /* Inject a keypress into the key-handling subsystem. */
 extern void handle_keypress(unsigned char key, struct cpu_user_regs *regs);