From fde09ccce7c5f8657cc3a4607811671c4f48c88e Mon Sep 17 00:00:00 2001
From: Gunar Schorcht <gunar@schorcht.net>
Date: Mon, 23 Jan 2023 21:09:05 +0100
Subject: [PATCH] fixup! cpu/gd32v: add periph_gpio_irq support

---
 cpu/gd32v/periph/gpio.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/cpu/gd32v/periph/gpio.c b/cpu/gd32v/periph/gpio.c
index 29218a4e4f2e..5b53b95ee424 100644
--- a/cpu/gd32v/periph/gpio.c
+++ b/cpu/gd32v/periph/gpio.c
@@ -239,20 +239,15 @@ int gpio_init_int(gpio_t pin, gpio_mode_t mode, gpio_flank_t flank,
     /* configure pin as input */
     gpio_init(pin, mode);
 
+#ifndef NDEBUG
     /* GD32V has 16 EXTI lines for GPIO interrupts, where all ports share
      * the same EXTI line for the same pin. That means the pin PA<n> shares
      * the EXTI line with PB<n>, PC<n>, PD<n> and PE<n>. */
-    if (exti_ctx[pin_num].cb != 0) {
-#ifdef NDEBUG
-        LOG_ERROR("EXTI line for GPIO_PIN(%u, %u) is already used.\n",
-                  port_num, pin_num);
-#else
+    if ((exti_ctx[pin_num].cb != 0) && (exti_line_port[pin_num] != port_num)) {
         LOG_ERROR("EXTI line for GPIO_PIN(%u, %u) is used by GPIO_PIN(%u, %u).\n",
                   port_num, pin_num, exti_line_port[pin_num], pin_num);
-#endif
         assert(0);
     }
-#ifndef NDEBUG
     exti_line_port[pin_num] = port_num;
 #endif