fix:[STM32][drv_can] Suppress unused variable warning in send error path

wdfk-prog · Rbb666 · commit 836eecc2f92b · 2025-11-22T10:11:38.000+08:00
diff --git a/bsp/stm32/libraries/HAL_Drivers/drivers/drv_can.c b/bsp/stm32/libraries/HAL_Drivers/drivers/drv_can.c
@@ -551,6 +551,7 @@ static rt_ssize_t _can_sendmsg(struct rt_can_device *can, const void *buf, rt_ui
 
         if (HAL_IS_BIT_SET(hcan->Instance->TSR, tme_flag) != SET)
         {
+            RT_UNUSED(mailbox_mask);
             return -RT_ERROR;
         }
 

Original file line number	Diff line number	Diff line change
`@@ -551,6 +551,7 @@ static rt_ssize_t _can_sendmsg(struct rt_can_device can, const void buf, rt_ui`
`551`	`551`
`552`	`552`	`if (HAL_IS_BIT_SET(hcan->Instance->TSR, tme_flag) != SET)`
`553`	`553`	`{`
	`554`	`+ RT_UNUSED(mailbox_mask);`
`554`	`555`	`return -RT_ERROR;`
`555`	`556`	`}`
`556`	`557`