[HAL][ADC] Add UNUSED() macro to avoid the generation of a warning related to the unused argument 'SingleDiff'
diff --git a/Src/stm32l0xx_hal_adc_ex.c b/Src/stm32l0xx_hal_adc_ex.c
index 56a3fb7..39fcd1b 100644
--- a/Src/stm32l0xx_hal_adc_ex.c
+++ b/Src/stm32l0xx_hal_adc_ex.c
@@ -110,6 +110,9 @@
   /* Check the parameters */
   assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
 
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(SingleDiff);
+
   /* Process locked */
   __HAL_LOCK(hadc);
 
@@ -192,6 +195,9 @@
   assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
   assert_param(IS_ADC_SINGLE_DIFFERENTIAL(SingleDiff));
 
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(SingleDiff);
+
   /* Return the ADC calibration value */
   return ((hadc->Instance->CALFACT) & 0x0000007FU);
 }
@@ -214,6 +220,9 @@
   assert_param(IS_ADC_SINGLE_DIFFERENTIAL(SingleDiff));
   assert_param(IS_ADC_CALFACT(CalibrationFactor));
 
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(SingleDiff);
+
   /* Process locked */
   __HAL_LOCK(hadc);