debugobjects: Convert to DEFINE_SHOW_ATTRIBUTE

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

[ tglx: Distangled it from the mess in -next ]

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: hch@lst.de
Link: https://lkml.kernel.org/r/20200716084747.8034-1-miaoqinglang@huawei.com

diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index 48054db..fe45579 100644 (file)
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -1022,18 +1022,7 @@ static int debug_stats_show(struct seq_file *m, void *v)
        seq_printf(m, "objs_freed    :%d\n", debug_objects_freed);
        return 0;
 }
-
-static int debug_stats_open(struct inode *inode, struct file *filp)
-{
-       return single_open(filp, debug_stats_show, NULL);
-}
-
-static const struct file_operations debug_stats_fops = {
-       .open           = debug_stats_open,
-       .read           = seq_read,
-       .llseek         = seq_lseek,
-       .release        = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(debug_stats);
 
 static int __init debug_objects_init_debugfs(void)
 {