[U-Boot] [PATCH 2/4] mmc: sdhci: fix build warning

[Lei Wen]

If CONFIG_MMC_SDHCI_IO_ACCESSORS is defined, the following warning would
shows up:

include/sdhci.h:224: warning: 'struct sdhci_host' declared inside
parameter list
include/sdhci.h:224: warning: its scope is only this definition or
declaration, which is probably not what you want
include/sdhci.h:225: warning: 'struct sdhci_host' declared inside
parameter list
include/sdhci.h:226: warning: 'struct sdhci_host' declared inside
parameter list
include/sdhci.h:227: warning: 'struct sdhci_host' declared inside
parameter list
include/sdhci.h:228: warning: 'struct sdhci_host' declared inside
parameter list
include/sdhci.h:229: warning: 'struct sdhci_host' declared inside
parameter list

Signed-off-by: Lei Wen <leiwen at marvell.com>
---
 include/sdhci.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/include/sdhci.h b/include/sdhci.h
index 6d52ce9..6c6a8ea 100644
--- a/include/sdhci.h
+++ b/include/sdhci.h
@@ -219,6 +219,7 @@
  */
 #define SDHCI_DEFAULT_BOUNDARY_SIZE	(512 * 1024)
 #define SDHCI_DEFAULT_BOUNDARY_ARG	(7)
+struct sdhci_host;
 struct sdhci_ops {
 #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
 	u32             (*read_l)(struct sdhci_host *host, int reg);
-- 
1.7.0.4