commit 5e78a264f8b366ab133e249ffbb6a5c8cb5bd8b9
author Chen Gang <gang.chen.5i5j@gmail.com> Tue Nov 26 12:07:40 2013 +0800
committer Richard Kuo <rkuo@codeaurora.org> Fri Apr 04 18:20:00 2014 -0500
tree b5a3c35e516b5f11ab7dbb2891d2c69080562990
parent e6d19042176344f22f8de6ea6aa2a84d3f8f8d17

arch: hexagon: include: asm: add generic macro 'mmiowb' in "io.h"

Need dumy mmiowb(), or can not pass compiling, the related error with
allmodconfig:

    CC [M]  drivers/mmc/host/sdhci.o
  drivers/mmc/host/sdhci.c: In function 'sdhci_request':
  drivers/mmc/host/sdhci.c:1409:2: error: implicit declaration of function 'mmiowb' [-Werror=implicit-function-declaration]

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>

arch/hexagon/include/asm/io.h

diff --git a/arch/hexagon/include/asm/io.h b/arch/hexagon/include/asm/io.h
index 1b7698e..7029899 100644
--- a/arch/hexagon/include/asm/io.h
+++ b/arch/hexagon/include/asm/io.h
@@ -189,6 +189,8 @@
 #define writew_relaxed __raw_writew
 #define writel_relaxed __raw_writel
 
+#define mmiowb()
+
 /*
  * Need an mtype somewhere in here, for cache type deals?
  * This is probably too long for an inline.