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diff --git a/sys/compat/lindebugfs/lindebugfs.c b/sys/compat/lindebugfs/lindebugfs.c
--- a/sys/compat/lindebugfs/lindebugfs.c
+++ b/sys/compat/lindebugfs/lindebugfs.c
@@ -70,6 +70,7 @@
#include <linux/compat.h>
#include <linux/debugfs.h>
#include <linux/fs.h>
+#include <linux/device.h>
MALLOC_DEFINE(M_DFSINT, "debugfsint", "Linux debugfs internal");
@@ -807,6 +808,47 @@
return (debugfs_create_file(name, mode & 0444, parent, value, &__fops_blob_ro));
}
+/* ---------------------------------------------------------------------------- */
+/* This should be migrated to ??? */
+
+struct debugfs_devm_seqfile {
+ struct device *dev;
+ int (*readfunc)(struct seq_file *, void *);
+};
+
+static int
+debugfs_devm_seqfile_open(struct inode *inode, struct linux_file *f)
+{
+ struct debugfs_devm_seqfile *s;
+
+ s = inode->i_private;
+ return (single_open(f, s->readfunc, s->dev));
+}
+
+static const struct file_operations debugfs_devm_seqfile_ops = {
+ .owner = THIS_MODULE,
+ .open = debugfs_devm_seqfile_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+void
+debugfs_create_devm_seqfile(struct device *dev, const char *name,
+ struct dentry *d, int (*readfunc)(struct seq_file *m, void *arg))
+{
+ struct debugfs_devm_seqfile *s;
+
+ s = devm_kzalloc(dev, sizeof(*s), GFP_KERNEL);
+ if (s == NULL)
+ return;
+
+ s->dev = dev;
+ s->readfunc = readfunc;
+
+ debugfs_create_file(name, 0444, d, s, &debugfs_devm_seqfile_ops);
+}
+/* ---------------------------------------------------------------------------- */
static int
lindebugfs_init(PFS_INIT_ARGS)
diff --git a/sys/compat/linuxkpi/common/include/linux/debugfs.h b/sys/compat/linuxkpi/common/include/linux/debugfs.h
--- a/sys/compat/linuxkpi/common/include/linux/debugfs.h
+++ b/sys/compat/linuxkpi/common/include/linux/debugfs.h
@@ -121,4 +121,9 @@
struct dentry *debugfs_create_blob(const char *name, umode_t mode,
struct dentry *parent, struct debugfs_blob_wrapper *value);
+struct device;
+struct dentry;
+void debugfs_create_devm_seqfile(struct device *, const char *, struct dentry *,
+ int (*)(struct seq_file *, void *));
+
#endif /* _LINUXKPI_LINUX_DEBUGFS_H_ */

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