[kvm-unit-tests PATCH v2 2/2] umip: fix build error

[Peter Xu <peterx@xxxxxxxxxx>]

Fix errors like:

x86/umip.c: In function ‘main’:
x86/umip.c:180:20: error: passing argument 1 of ‘test_umip_nogp’ discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
     test_umip_nogp("UMIP=0, CPL=0\n");

Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx>
Signed-off-by: Peter Xu <peterx@xxxxxxxxxx>
---
 x86/umip.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/x86/umip.c b/x86/umip.c
index c1a40d6..cda1971 100644
--- a/x86/umip.c
+++ b/x86/umip.c
@@ -71,7 +71,7 @@ static void do_movcr(void)
     GP_ASM("mov %%cr0, %%" R "ax", , "eax");
 }
 
-static void test_umip_nogp(char *msg)
+static void test_umip_nogp(const char *msg)
 {
     puts(msg);
 
@@ -91,7 +91,7 @@ static void test_umip_nogp(char *msg)
     }
 }
 
-static void test_umip_gp(char *msg)
+static void test_umip_gp(const char *msg)
 {
     puts(msg);
 
@@ -113,7 +113,7 @@ static void test_umip_gp(char *msg)
 
 /* The ugly mode switching code */
 
-int do_ring3(void (*fn)(char *), char *arg)
+int do_ring3(void (*fn)(const char *), const char *arg)
 {
     static unsigned char user_stack[4096];
     int ret;
-- 
2.17.1