debugfs: Add support to print u32 array in debugfs

Move the code from Xen to debugfs to make the code common
for other users as well.

Accked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Signed-off-by: Suzuki Poulose <suzuki@in.ibm.com>
[v1: Fixed rebase issues]
[v2: Fixed PPC compile issues]
Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index ae36b72c22f3..66c434f5dd1e 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -93,6 +93,10 @@ struct dentry *debugfs_create_regset32(const char *name, umode_t mode,
 int debugfs_print_regs32(struct seq_file *s, const struct debugfs_reg32 *regs,
                          int nregs, void __iomem *base, char *prefix);
 
+struct dentry *debugfs_create_u32_array(const char *name, umode_t mode,
+                                        struct dentry *parent,
+                                        u32 *array, u32 elements);
+
 bool debugfs_initialized(void);
 
 #else
@@ -219,6 +223,13 @@ static inline bool debugfs_initialized(void)
         return false;
 }
 
+static inline struct dentry *debugfs_create_u32_array(const char *name, umode_t mode,
+                                        struct dentry *parent,
+                                        u32 *array, u32 elements)
+{
+        return ERR_PTR(-ENODEV);
+}
+
 #endif
 
 #endif