[LTP] [PATCH v2 1/2] lib: fix kernel-bit detection on s390 platform

[Li Wang]

This correction also fix the mmapstress03 issues on the latest kernel:
  mmapstress03: errno = 25: really large mmap didn't fail
  mmapstress03    0  TINFO  :  uname.machine=s390x kernel is 32bit
  mmapstress03    1  TFAIL  :  mmapstress03.c:212: Test failed

Signed-off-by: Li Wang <liwang@redhat.com>
---
 lib/tst_kernel.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/tst_kernel.c b/lib/tst_kernel.c
index fd648b1..42d64cb 100644
--- a/lib/tst_kernel.c
+++ b/lib/tst_kernel.c
@@ -34,8 +34,10 @@ int tst_kernel_bits(void)
 	/*
 	 * ARM64 (aarch64) defines 32-bit compatibility modes as
 	 * armv8l and armv8b (little and big endian).
+	 * s390x is 64bit but not contain 64 in the words.
 	 */
-	if (!strcmp(buf.machine, "armv8l") || !strcmp(buf.machine, "armv8b"))
+	if (!strcmp(buf.machine, "armv8l") || !strcmp(buf.machine, "armv8b")
+			|| !strcmp(buf.machine, "s390x"))
 		kernel_bits = 64;
 
 	tst_resm(TINFO, "uname.machine=%s kernel is %ibit",
-- 
2.9.3