6 files changed, 12 insertions, 0 deletions
diff --git a/os/hal/ports/STM32/LLD/GPIOv1/hal_pal_lld.c b/os/hal/ports/STM32/LLD/GPIOv1/hal_pal_lld.c
index 6c12b97b5..99106bce7 100644
--- a/os/hal/ports/STM32/LLD/GPIOv1/hal_pal_lld.c
+++ b/os/hal/ports/STM32/LLD/GPIOv1/hal_pal_lld.c
@@ -49,10 +49,12 @@
 /* Driver exported variables.                                                */
 /*===========================================================================*/
 
+#if (PAL_USE_WAIT == TRUE) || (PAL_USE_CALLBACKS == TRUE) || defined(__DOXYGEN__)
 /**
  * @brief   Event records for the 16 GPIO EXTI channels.
  */
 palevent_t _pal_events[16];
+#endif
 
 /*===========================================================================*/
 /* Driver local variables and types.                                         */
diff --git a/os/hal/ports/STM32/LLD/GPIOv1/hal_pal_lld.h b/os/hal/ports/STM32/LLD/GPIOv1/hal_pal_lld.h
index d7d26942e..63bc006d4 100644
--- a/os/hal/ports/STM32/LLD/GPIOv1/hal_pal_lld.h
+++ b/os/hal/ports/STM32/LLD/GPIOv1/hal_pal_lld.h
@@ -430,8 +430,10 @@ typedef uint32_t iopadid_t;
 
 #if !defined(__DOXYGEN__)
 extern const PALConfig pal_default_config;
+#if (PAL_USE_WAIT == TRUE) || (PAL_USE_CALLBACKS == TRUE)
 extern palevent_t _pal_events[16];
 #endif
+#endif
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.c b/os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.c
index 574d3c164..a8ce78f87 100644
--- a/os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.c
+++ b/os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.c
@@ -34,10 +34,12 @@
 /* Driver exported variables.                                                */
 /*===========================================================================*/
 
+#if (PAL_USE_WAIT == TRUE) || (PAL_USE_CALLBACKS == TRUE) || defined(__DOXYGEN__)
 /**
  * @brief   Event records for the 16 GPIO EXTI channels.
  */
 palevent_t _pal_events[16];
+#endif
 
 /*===========================================================================*/
 /* Driver local variables and types.                                         */
diff --git a/os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.h b/os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.h
index d6dd4df72..ce981ecb6 100644
--- a/os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.h
+++ b/os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.h
@@ -487,8 +487,10 @@ typedef uint32_t iopadid_t;
   (bool)((EXTI->IMR & (1U << (uint32_t)pad)) != 0U)
 
 #if !defined(__DOXYGEN__)
+#if (PAL_USE_WAIT == TRUE) || (PAL_USE_CALLBACKS == TRUE)
 extern palevent_t _pal_events[16];
 #endif
+#endif
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/os/hal/ports/STM32/LLD/GPIOv3/hal_pal_lld.c b/os/hal/ports/STM32/LLD/GPIOv3/hal_pal_lld.c
index e1f63d3fd..9ca51f5b9 100644
--- a/os/hal/ports/STM32/LLD/GPIOv3/hal_pal_lld.c
+++ b/os/hal/ports/STM32/LLD/GPIOv3/hal_pal_lld.c
@@ -43,10 +43,12 @@
 /* Driver exported variables.                                                */
 /*===========================================================================*/
 
+#if (PAL_USE_WAIT == TRUE) || (PAL_USE_CALLBACKS == TRUE) || defined(__DOXYGEN__)
 /**
  * @brief   Event records for the 16 GPIO EXTI channels.
  */
 palevent_t _pal_events[16];
+#endif
 
 /*===========================================================================*/
 /* Driver local variables and types.                                         */
diff --git a/os/hal/ports/STM32/LLD/GPIOv3/hal_pal_lld.h b/os/hal/ports/STM32/LLD/GPIOv3/hal_pal_lld.h
index 0348744a0..d1a5f1235 100644
--- a/os/hal/ports/STM32/LLD/GPIOv3/hal_pal_lld.h
+++ b/os/hal/ports/STM32/LLD/GPIOv3/hal_pal_lld.h
@@ -527,8 +527,10 @@ typedef uint32_t iopadid_t;
   (bool)((EXTI->IMR & (1U << (uint32_t)pad)) != 0U)
 
 #if !defined(__DOXYGEN__)
+#if (PAL_USE_WAIT == TRUE) || (PAL_USE_CALLBACKS == TRUE)
 extern palevent_t _pal_events[16];
 #endif
+#endif
 
 #ifdef __cplusplus
 extern "C" {