ARM64: dump: Convert to use DEFINE_SHOW_ATTRIBUTE macro

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Peng Donglin <dolinux.peng@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

diff --git a/arch/arm64/mm/ptdump_debugfs.c b/arch/arm64/mm/ptdump_debugfs.c
index 02b18f8..24d786f 100644 (file)
--- a/arch/arm64/mm/ptdump_debugfs.c
+++ b/arch/arm64/mm/ptdump_debugfs.c
@@ -10,18 +10,7 @@ static int ptdump_show(struct seq_file *m, void *v)
        ptdump_walk_pgd(m, info);
        return 0;
 }
-
-static int ptdump_open(struct inode *inode, struct file *file)
-{
-       return single_open(file, ptdump_show, inode->i_private);
-}
-
-static const struct file_operations ptdump_fops = {
-       .open           = ptdump_open,
-       .read           = seq_read,
-       .llseek         = seq_lseek,
-       .release        = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(ptdump);
 
 int ptdump_debugfs_register(struct ptdump_info *info, const char *name)
 {