[PATCH] staging: nvec: silence macro argument warnings in NVEC_PHD()

[Emre Cecanpunar]

checkpatch.pl warns that the NVEC_PHD macro defines unused arguments.
Use (void) casts to prevent unused argument warnings when the macro is disabled.

Signed-off-by: Emre Cecanpunar <emreleno@xxxxxxxxx>
---
 drivers/staging/nvec/nvec_ps2.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/nvec/nvec_ps2.c b/drivers/staging/nvec/nvec_ps2.c
index 575233fa1677..38e736b3761e 100644
--- a/drivers/staging/nvec/nvec_ps2.c
+++ b/drivers/staging/nvec/nvec_ps2.c
@@ -28,7 +28,11 @@
 	print_hex_dump(KERN_DEBUG, str, DUMP_PREFIX_NONE, \
 			16, 1, buf, len, false)
 #else
-#define NVEC_PHD(str, buf, len) do { } while (0)
+#define NVEC_PHD(str, buf, len) do { \
+	(void)(str); \
+	(void)(buf); \
+	(void)(len); \
+} while (0)
 #endif
 
 enum ps2_subcmds {
-- 
2.50.0