From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 2 Oct 2018 23:16:42 +0200
Subject: firmware: dcdbas: include linux/io.h
Git-commit: 2991cc22966a712706c053ca3d3b03bd1ae384ae
Patch-mainline: v4.20-rc1
References: bsc#1089350 FATE#325723

memremap() is declared in linux/io.h, not in asm/io.h, so we should
include that header to avoid build errors:

drivers/platform/x86/dcdbas.c: In function 'dcdbas_check_wsmt':
drivers/platform/x86/dcdbas.c:572:15: error: implicit declaration of function 'memremap'; did you mean 'ioremap'? [-Werror=implicit-function-declaration]
  eps_buffer = memremap(eps->smm_comm_buff_addr, remap_size, MEMREMAP_WB);
               ^~~~~~~~
               ioremap
drivers/platform/x86/dcdbas.c:572:61: error: 'MEMREMAP_WB' undeclared (first use in this function)
  eps_buffer = memremap(eps->smm_comm_buff_addr, remap_size, MEMREMAP_WB);
                                                             ^~~~~~~~~~~
drivers/platform/x86/dcdbas.c:572:61: note: each undeclared identifier is reported only once for each function it appears in
drivers/platform/x86/dcdbas.c: In function 'dcdbas_exit':
drivers/platform/x86/dcdbas.c:748:3: error: implicit declaration of function 'memunmap'; did you mean 'vm_munmap'? [-Werror=implicit-function-declaration]

Fixes: 12c956c4f32e ("firmware: dcdbas: Add support for WSMT ACPI table")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jean Delvare <jdelvare@suse.de>
---
 drivers/firmware/dcdbas.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/firmware/dcdbas.c
+++ b/drivers/firmware/dcdbas.c
@@ -27,6 +27,7 @@
 #include <linux/cpu.h>
 #include <linux/gfp.h>
 #include <linux/init.h>
+#include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/mc146818rtc.h>
 #include <linux/module.h>
@@ -37,7 +38,6 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/mutex.h>
-#include <asm/io.h>
 
 #include "dcdbas.h"