[GIT PULL] kselftest update 2 for Linux 4.18-rc1

[Shuah Khan]

Hi Linus,

Please pull the following Kselftest update 2 for 4.18-rc1

This second Kselftest update for Linux 4.18-rc1:

- fixes a signedness bug in cgroups test
- adds ppc support for kprobe args tests

diff is attached.

thanks,
-- Shuah

-----------------------------------------------------------------------------------
The following changes since commit fa32156921daa5c175228e2cac7679d50efd6c52:

  selftests: lib: fix prime_numbers module search and skip logic (2018-05-30 21:32:55 -0600)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-4.18-rc1-2

for you to fetch changes up to 53c3daf8cfeae4b1289723c7abeb9540c1630cf8:

  kselftest/cgroup: fix a signedness bug (2018-06-07 13:44:30 -0600)

----------------------------------------------------------------
linux-kselftest-4.18-rc1-2

This second Kselftest update for Linux 4.18-rc1:

- fixes a signedness bug in cgroups test
- adds ppc support for kprobe args tests

----------------------------------------------------------------
Dan Carpenter (1):
      kselftest/cgroup: fix a signedness bug

Naveen N. Rao (1):
      selftests/ftrace: Add ppc support for kprobe args tests

 tools/testing/selftests/cgroup/cgroup_util.c                      | 4 ++--
 .../testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc  | 8 ++++++++
 .../testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc  | 7 +++++++
 3 files changed, 17 insertions(+), 2 deletions(-)

-----------------------------------------------------------------------------------
diff --git a/tools/testing/selftests/cgroup/cgroup_util.c b/tools/testing/selftests/cgroup/cgroup_util.c
index b69bdeb4b9fe..1e9e3c470561 100644
--- a/tools/testing/selftests/cgroup/cgroup_util.c
+++ b/tools/testing/selftests/cgroup/cgroup_util.c
@@ -35,7 +35,7 @@ static ssize_t read_text(const char *path, char *buf, size_t max_len)
 	return len;
 }
 
-static ssize_t write_text(const char *path, char *buf, size_t len)
+static ssize_t write_text(const char *path, char *buf, ssize_t len)
 {
 	int fd;
 
@@ -140,7 +140,7 @@ long cg_read_key_long(const char *cgroup, const char *control, const char *key)
 int cg_write(const char *cgroup, const char *control, char *buf)
 {
 	char path[PATH_MAX];
-	size_t len = strlen(buf);
+	ssize_t len = strlen(buf);
 
 	snprintf(path, sizeof(path), "%s/%s", cgroup, control);
 
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc
index 5ba73035e1d9..a0002563e9ee 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc
@@ -24,6 +24,14 @@ arm*)
   ARG2=%r1
   OFFS=4
 ;;
+ppc64*)
+  ARG2=%r4
+  OFFS=8
+;;
+ppc*)
+  ARG2=%r4
+  OFFS=4
+;;
 *)
   echo "Please implement other architecture here"
   exit_untested
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc
index 231bcd2c4eb5..d026ff4e562f 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc
@@ -34,6 +34,13 @@ arm*)
   GOODREG=%r0
   BADREG=%ax
 ;;
+ppc*)
+  GOODREG=%r3
+  BADREG=%msr
+;;
+*)
+  echo "Please implement other architecture here"
+  exit_untested
 esac
 
 test_goodarg() # Good-args