selftests/powerpc: Create a new SKIP_IF macro

This patch creates a new macro that skips a test and prints a message to
stderr. This is useful to give an idea why the tests is being skipped,
other than just skipping the test blindly.

Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/tools/testing/selftests/powerpc/include/utils.h b/tools/testing/selftests/powerpc/include/utils.h
index 4962182..ae43a61 100644 (file)
--- a/tools/testing/selftests/powerpc/include/utils.h
+++ b/tools/testing/selftests/powerpc/include/utils.h
@@ -82,6 +82,16 @@ do {                                                         \
        }                                                       \
 } while (0)
 
+#define SKIP_IF_MSG(x, msg)                                    \
+do {                                                           \
+       if ((x)) {                                              \
+               fprintf(stderr,                                 \
+               "[SKIP] Test skipped on line %d: %s\n",         \
+                __LINE__, msg);                                \
+               return MAGIC_SKIP_RETURN_VALUE;                 \
+       }                                                       \
+} while (0)
+
 #define _str(s) #s
 #define str(s) _str(s)