From dc8f7777870741d6dbdc1c2d66c1f8346bc8b58a Mon Sep 17 00:00:00 2001
From: Conrad Meyer <cem@FreeBSD.org>
Date: Thu, 23 May 2019 20:18:46 +0000
Subject: [PATCH] uart_cpu_acpi: Fix GCC build break from r348195

extern declarations are redundant with those in uart_cpu.h, which this file
includes.

X-MFC-with:	r348195
---
 sys/dev/uart/uart_cpu_acpi.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/sys/dev/uart/uart_cpu_acpi.c b/sys/dev/uart/uart_cpu_acpi.c
index e91bdb22b77..13b7aa47e78 100644
--- a/sys/dev/uart/uart_cpu_acpi.c
+++ b/sys/dev/uart/uart_cpu_acpi.c
@@ -45,9 +45,6 @@ __FBSDID("$FreeBSD$");
 #include <contrib/dev/acpica/include/accommon.h>
 #include <contrib/dev/acpica/include/actables.h>
 
-extern bus_space_tag_t uart_bus_space_io;
-extern bus_space_tag_t uart_bus_space_mem;
-
 static struct acpi_uart_compat_data *
 uart_cpu_acpi_scan(uint8_t interface_type)
 {