linux-kernel - [PATCH 1/2] MIPS: ralink: Fix build error due to missing header

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Message-ID: <1500384346-10527-1-git-send-email-harvey.hunt@imgtec.com>
Date:   Tue, 18 Jul 2017 14:25:45 +0100
From:   Harvey Hunt <harvey.hunt@...tec.com>
To:     <ralf@...ux-mips.org>
CC:     Harvey Hunt <harvey.hunt@...tec.com>,
        "#4 . 11+" <stable@...r.kernel.org>,
        John Crispin <john@...ozen.org>, <linux-mips@...ux-mips.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] MIPS: ralink: Fix build error due to missing header

Previously, <linux/module.h> was included before ralink_regs.h in all
ralink files - leading to <linux/io.h> being implicitly included.

After commit 26dd3e4ff9ac ("MIPS: Audit and remove any unnecessary
uses of module.h") removed the inclusion of module.h from multiple
places, some ralink platforms failed to build with the following error:

In file included from arch/mips/ralink/mt7620.c:17:0:
./arch/mips/include/asm/mach-ralink/ralink_regs.h: In function ‘rt_sysc_w32’:
./arch/mips/include/asm/mach-ralink/ralink_regs.h:38:2: error: implicit declaration of function ‘__raw_writel’ [-Werror=implicit-function-declaration]
  __raw_writel(val, rt_sysc_membase + reg);
  ^
./arch/mips/include/asm/mach-ralink/ralink_regs.h: In function ‘rt_sysc_r32’:
./arch/mips/include/asm/mach-ralink/ralink_regs.h:43:2: error: implicit declaration of function ‘__raw_readl’ [-Werror=implicit-function-declaration]
  return __raw_readl(rt_sysc_membase + reg);

Fix this by including <linux/io.h>.

Signed-off-by: Harvey Hunt <harvey.hunt@...tec.com>
Fixes: 26dd3e4ff9ac ("MIPS: Audit and remove any unnecessary uses of module.h")
Cc: <stable@...r.kernel.org> #4.11+
Cc: John Crispin <john@...ozen.org>
Cc: linux-mips@...ux-mips.org
Cc: linux-kernel@...r.kernel.org
---
 arch/mips/include/asm/mach-ralink/ralink_regs.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/mips/include/asm/mach-ralink/ralink_regs.h b/arch/mips/include/asm/mach-ralink/ralink_regs.h
index 9df1a53..b4e7dfa 100644
--- a/arch/mips/include/asm/mach-ralink/ralink_regs.h
+++ b/arch/mips/include/asm/mach-ralink/ralink_regs.h
@@ -13,6 +13,8 @@
 #ifndef _RALINK_REGS_H_
 #define _RALINK_REGS_H_
 
+#include <linux/io.h>
+
 enum ralink_soc_type {
 	RALINK_UNKNOWN = 0,
 	RT2880_SOC,
-- 
2.7.4