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Diffstat (limited to 'tools/testing/selftests/resctrl/resctrl_val.c')
-rw-r--r--tools/testing/selftests/resctrl/resctrl_val.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/tools/testing/selftests/resctrl/resctrl_val.c b/tools/testing/selftests/resctrl/resctrl_val.c
index f0f6c5f6e98b..51963a6f2186 100644
--- a/tools/testing/selftests/resctrl/resctrl_val.c
+++ b/tools/testing/selftests/resctrl/resctrl_val.c
@@ -629,7 +629,7 @@ measure_vals(struct resctrl_val_param *param, unsigned long *bw_resc_start)
*
* Return: 0 on success. non-zero on failure.
*/
-int resctrl_val(char **benchmark_cmd, struct resctrl_val_param *param)
+int resctrl_val(const char * const *benchmark_cmd, struct resctrl_val_param *param)
{
char *resctrl_val = param->resctrl_val;
unsigned long bw_resc_start = 0;
@@ -710,7 +710,13 @@ int resctrl_val(char **benchmark_cmd, struct resctrl_val_param *param)
if (ret)
goto out;
- value.sival_ptr = benchmark_cmd;
+ /*
+ * The cast removes constness but nothing mutates benchmark_cmd within
+ * the context of this process. At the receiving process, it becomes
+ * argv, which is mutable, on exec() but that's after fork() so it
+ * doesn't matter for the process running the tests.
+ */
+ value.sival_ptr = (void *)benchmark_cmd;
/* Taskset benchmark to specified cpu */
ret = taskset_benchmark(bm_pid, param->cpu_no);