[PATCH] debugfs: Add debugfs_create_blob() helper for exporting binary data
I wanted to export a binary blob via debugfs, and although it was pretty easy
it seems like it'd be easier if there was a helper for it. It's a pity we need
the wrapper struct but I can't see a cleaner way to do it.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index a5fa6a6..4b0428e 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -21,6 +21,11 @@
struct file_operations;
+struct debugfs_blob_wrapper {
+ void *data;
+ unsigned long size;
+};
+
#if defined(CONFIG_DEBUG_FS)
struct dentry *debugfs_create_file(const char *name, mode_t mode,
struct dentry *parent, void *data,
@@ -39,6 +44,9 @@
struct dentry *debugfs_create_bool(const char *name, mode_t mode,
struct dentry *parent, u32 *value);
+struct dentry *debugfs_create_blob(const char *name, mode_t mode,
+ struct dentry *parent,
+ struct debugfs_blob_wrapper *blob);
#else
#include <linux/err.h>
@@ -94,6 +102,13 @@
return ERR_PTR(-ENODEV);
}
+static inline struct dentry *debugfs_create_blob(const char *name, mode_t mode,
+ struct dentry *parent,
+ struct debugfs_blob_wrapper *blob)
+{
+ return ERR_PTR(-ENODEV);
+}
+
#endif
#endif