From c59df9a54cb7ea680cbae9a57f3a665802c9c739 Mon Sep 17 00:00:00 2001
From: Joel Challis <git@zvecr.com>
Date: Thu, 6 Oct 2022 00:36:48 +0100
Subject: Fix some rp2040 hardware ID errors (#18617)

---
 platforms/chibios/hardware_id.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/platforms/chibios/hardware_id.c b/platforms/chibios/hardware_id.c
index 7705bc7fd6..1097db5966 100644
--- a/platforms/chibios/hardware_id.c
+++ b/platforms/chibios/hardware_id.c
@@ -7,6 +7,9 @@
 hardware_id_t get_hardware_id(void) {
     hardware_id_t id = {0};
 #if defined(RP2040)
+    // Forward declare as including "hardware/flash.h" here causes more issues...
+    void flash_get_unique_id(uint8_t *);
+
     flash_get_unique_id((uint8_t *)&id);
 #elif defined(UID_BASE)
     id.data[0] = (uint32_t)(*((uint32_t *)UID_BASE));
-- 
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