diff mbox series

backports: debugfs: add unsigned long helpers

Message ID 20200214122925.cf82be1a01b9.I8721de5b950a581febb54720dfdc6253389df021@changeid (mailing list archive)
State New, archived
Headers show
Series backports: debugfs: add unsigned long helpers | expand

Commit Message

Johannes Berg Feb. 14, 2020, 11:29 a.m. UTC 
From: Johannes Berg <johannes.berg@intel.com>

debugfs_create_ulong and debugfs_create_xul.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 backport/backport-include/linux/debugfs.h | 26 +++++++++++++++++++++++
 1 file changed, 26 insertions(+)
diff mbox series

Patch

diff --git a/backport/backport-include/linux/debugfs.h b/backport/backport-include/linux/debugfs.h
index fb50c4f5750e..973c545cf0e0 100644
--- a/backport/backport-include/linux/debugfs.h
+++ b/backport/backport-include/linux/debugfs.h
@@ -60,4 +60,30 @@  debugfs_real_fops(const struct file *filp)
 	debugfs_create_file(name, mode, parent, data, fops)
 #endif
 
+#if LINUX_VERSION_IS_LESS(4,4,0)
+static inline struct dentry *
+debugfs_create_ulong(const char *name, umode_t mode,
+		     struct dentry *parent, unsigned long *value)
+{
+	if (sizeof(unsigned long) == sizeof(u64))
+		return debugfs_create_u64(name, mode, parent, (u64 *)value);
+	if (sizeof(unsigned long) == sizeof(u32))
+		return debugfs_create_u32(name, mode, parent, (u32 *)value);
+	WARN_ON(1);
+	return ERR_PTR(-EINVAL);
+}
+#endif
+
+#if LINUX_VERSION_IS_LESS(5,5,0)
+static inline void debugfs_create_xul(const char *name, umode_t mode,
+				      struct dentry *parent,
+				      unsigned long *value)
+{
+	if (sizeof(*value) == sizeof(u32))
+		debugfs_create_x32(name, mode, parent, (u32 *)value);
+	else
+		debugfs_create_x64(name, mode, parent, (u64 *)value);
+}
+#endif
+
 #endif /* __BACKPORT_DEBUGFS_H_ */