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Use (void) casts to prevent unused argument warnings when the macro is disa= bled. Signed-off-by: Emre Cecanpunar --- 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_ps= 2.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 =20 enum ps2_subcmds { --=20 2.50.0