debugfs: bugfix: include <linux/io.h> in file.c

The regs32 machinery uses readl. I forgot the mandatory include
and the code was not compiling on all archs.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index fc98ec9e1d832ecbdc0d18ae0d5b51faaa181cd7..e0a3a59a67449514a06df6a249f662ebb283ed3f 100644 (file)
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -19,6 +19,7 @@
 #include <linux/pagemap.h>
 #include <linux/namei.h>
 #include <linux/debugfs.h>
+#include <linux/io.h>
 
 static ssize_t default_read_file(struct file *file, char __user *buf,
                                 size_t count, loff_t *ppos)