xen/drivers: address violations of MISRA C:2012 Rule 8.2

Add missing parameter names. No functional change.

Signed-off-by: Federico Serafini <federico.serafini@bugseng.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

xen/drivers/char/ehci-dbgp.c

@@ -341,7 +341,7 @@ struct ehci_dbgp {
     struct ehci_caps __iomem *ehci_caps;
 };
 
-static int ehci_dbgp_external_startup(struct ehci_dbgp *);
+static int ehci_dbgp_external_startup(struct ehci_dbgp *dbgp);
 
 static void ehci_dbgp_status(struct ehci_dbgp *dbgp, const char *str)
 {
@@ -997,7 +997,7 @@ err:
     return -ENODEV;
 }
 
-typedef void (*set_debug_port_t)(struct ehci_dbgp *, unsigned int);
+typedef void (*set_debug_port_t)(struct ehci_dbgp *dbgp, unsigned int port);
 
 static void cf_check default_set_debug_port(
     struct ehci_dbgp *dbgp, unsigned int port)

xen/drivers/video/vga.c

@@ -21,7 +21,7 @@ static unsigned char *video;
 
 static void cf_check vga_text_puts(const char *s, size_t nr);
 static void cf_check vga_noop_puts(const char *s, size_t nr) {}
-void (*video_puts)(const char *, size_t nr) = vga_noop_puts;
+void (*video_puts)(const char *s, size_t nr) = vga_noop_puts;
 
 /*
  * 'vga=<mode-specifier>[,keep]' where <mode-specifier> is one of:

xen/include/xen/video.h

@@ -13,7 +13,7 @@
 
 #ifdef CONFIG_VIDEO
 void video_init(void);
-extern void (*video_puts)(const char *, size_t nr);
+extern void (*video_puts)(const char *s, size_t nr);
 void video_endboot(void);
 #else
 #define video_init()    ((void)0)