From: Gabor Juhos <juhosg@openwrt.org>
Date: Sun, 26 May 2013 10:11:28 +0000 (+0200)
Subject: block: constify sect_buf argument of ide_write_data
X-Git-Tag: v2013.10-rc1~63^2~10
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c575180bae9b6baa8aa06e832f81ff41264f5707;p=platform%2Fkernel%2Fu-boot.git

block: constify sect_buf argument of ide_write_data

Add a const keyword to the sect_buf argument of
ide_write_data to fix the following warning:

  cmd_ide.c: In function '__ide_output_data':
  cmd_ide.c:548: warning: passing argument 2 of 'ide_write_data' discards qualifiers from pointer target type
  /devel/u-boot.git/include/ide.h:76: note: expected 'ulong *' but argument is of type 'const ulong *'

Also modify the driver-model documentation to
match with the new prototype.

Compile tested only.

Cc: Macpaul Lin <macpaul@andestech.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---

diff --git a/doc/driver-model/UDM-block.txt b/doc/driver-model/UDM-block.txt
index 5d5c776..b42ec69 100644
--- a/doc/driver-model/UDM-block.txt
+++ b/doc/driver-model/UDM-block.txt
@@ -93,7 +93,7 @@ I) Overview
       uchar ide_read_register(int dev, unsigned int port);
       void  ide_write_register(int dev, unsigned int port, unsigned char val);
       void  ide_read_data(int dev, ulong *sect_buf, int words);
-      void  ide_write_data(int dev, ulong *sect_buf, int words);
+      void  ide_write_data(int dev, const ulong *sect_buf, int words);
 
     The first two functions are called from ide_inb()/ide_outb(), and will
     default to direct memory access if CONFIG_IDE_AHB is not set, or
diff --git a/drivers/block/ftide020.c b/drivers/block/ftide020.c
index ad8fdad..61900ba 100644
--- a/drivers/block/ftide020.c
+++ b/drivers/block/ftide020.c
@@ -81,7 +81,7 @@ void ide_write_register(int dev, unsigned int port, unsigned char val)
 		IDE_REG_DA_WRITE(port) | val);
 }
 
-void ide_write_data(int dev, ulong *sect_buf, int words)
+void ide_write_data(int dev, const ulong *sect_buf, int words)
 {
 	static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE;
 
diff --git a/include/ide.h b/include/ide.h
index 59ea975..0269d51 100644
--- a/include/ide.h
+++ b/include/ide.h
@@ -76,7 +76,7 @@ int ide_device_present(int dev);
 unsigned char ide_read_register(int dev, unsigned int port);
 void ide_write_register(int dev, unsigned int port, unsigned char val);
 void ide_read_data(int dev, ulong *sect_buf, int words);
-void ide_write_data(int dev, ulong *sect_buf, int words);
+void ide_write_data(int dev, const ulong *sect_buf, int words);
 #endif
 
 /*