[PATCH v2] selftests/kvm/x86: fix spelling error in xapic_ipi_test comment

[Wang Yan]

Fix typo "usefull" -> "useful" in xAPIC IPI test comment.

Signed-off-by: Wang Yan <wangyan01@xxxxxxxxxx>
---
 tools/testing/selftests/kvm/x86/xapic_ipi_test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kvm/x86/xapic_ipi_test.c b/tools/testing/selftests/kvm/x86/xapic_ipi_test.c
index 39ce9a9369f5..3a326c5e74ca 100644
--- a/tools/testing/selftests/kvm/x86/xapic_ipi_test.c
+++ b/tools/testing/selftests/kvm/x86/xapic_ipi_test.c
@@ -17,7 +17,7 @@
  * amongst the available numa nodes on the machine.
  *
  * Migration is a command line option. When used on non-numa machines will 
- * exit with error. Test is still usefull on non-numa for testing IPIs.
+ * exit with error. Test is still useful on non-numa for testing IPIs.
  */
 #include <getopt.h>
 #include <pthread.h>
-- 
2.25.1