[PATCH v2 1/2] selftests: lib: Skip tests on missing test modules

[Sumit Semwal <sumit.semwal@linaro.org>]

With older kernels, printf.sh and bitmap.sh fail because they can't find
the respective test modules they are looking for.

Add the skip portion on missing the respective test_XXX module. Error out
with the same error code as prime_numbers.sh.

v2: Per Shuah's review, search for the module rather than do modprobe.

Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
---
 tools/testing/selftests/lib/bitmap.sh | 6 ++++++
 tools/testing/selftests/lib/printf.sh | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/tools/testing/selftests/lib/bitmap.sh b/tools/testing/selftests/lib/bitmap.sh
index 2da187b6ddad..b893046d511f 100755
--- a/tools/testing/selftests/lib/bitmap.sh
+++ b/tools/testing/selftests/lib/bitmap.sh
@@ -1,6 +1,12 @@
 #!/bin/sh
 # Runs bitmap infrastructure tests using test_bitmap kernel module
 
+if ! find /lib/modules/$(uname -r) -type f -name test_bitmap.ko | grep -q .;
+then
+	echo "bitmap: test_bitmap.ko not found [SKIP]"
+	exit 77
+fi
+
 if /sbin/modprobe -q test_bitmap; then
 	/sbin/modprobe -q -r test_bitmap
 	echo "bitmap: ok"
diff --git a/tools/testing/selftests/lib/printf.sh b/tools/testing/selftests/lib/printf.sh
index 4fdc70fe6980..804b7e75acc0 100755
--- a/tools/testing/selftests/lib/printf.sh
+++ b/tools/testing/selftests/lib/printf.sh
@@ -1,6 +1,12 @@
 #!/bin/sh
 # Runs printf infrastructure using test_printf kernel module
 
+if ! find /lib/modules/$(uname -r) -type f -name test_printf.ko | grep -q .;
+then
+        echo "printf: test_printf.ko not found [SKIP]"
+        exit 77
+fi
+
 if /sbin/modprobe -q test_printf; then
 	/sbin/modprobe -q -r test_printf
 	echo "printf: ok"
-- 
2.7.4