[PATCH 04/14] xen/char: console: Use const whenever we point to literal strings

[Julien Grall <julien@xxxxxxx>]

From: Julien Grall <jgrall@xxxxxxxxxx>

literal strings are not meant to be modified. So we should use const
char * rather than char * when we want to store a pointer to them.

Signed-off-by: Julien Grall <jgrall@xxxxxxxxxx>
---
 xen/drivers/char/console.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/drivers/char/console.c b/xen/drivers/char/console.c
index 23583751709c..72a7cd1c32c1 100644
--- a/xen/drivers/char/console.c
+++ b/xen/drivers/char/console.c
@@ -168,7 +168,7 @@ static int parse_guest_loglvl(const char *s);
 static char xenlog_val[LOGLVL_VAL_SZ];
 static char xenlog_guest_val[LOGLVL_VAL_SZ];
 
-static char *lvl2opt[] = { "none", "error", "warning", "info", "all" };
+static const char *lvl2opt[] = { "none", "error", "warning", "info", "all" };
 
 static void xenlog_update_val(int lower, int upper, char *val)
 {
@@ -262,7 +262,7 @@ static int parse_guest_loglvl(const char *s)
     return ret;
 }
 
-static char *loglvl_str(int lvl)
+static const char *loglvl_str(int lvl)
 {
     switch ( lvl )
     {
-- 
2.17.1