KVM: arm64: vgic-debug: Convert to use DEFINE_SEQ_ATTRIBUTE macro

Use DEFINE_SEQ_ATTRIBUTE macro to simplify the code.

Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200916025023.3992679-1-liushixin2@huawei.com

diff --git a/arch/arm64/kvm/vgic/vgic-debug.c b/arch/arm64/kvm/vgic/vgic-debug.c
index b13a9e3..f38c40a 100644 (file)
--- a/arch/arm64/kvm/vgic/vgic-debug.c
+++ b/arch/arm64/kvm/vgic/vgic-debug.c
@@ -260,34 +260,14 @@ static int vgic_debug_show(struct seq_file *s, void *v)
        return 0;
 }
 
-static const struct seq_operations vgic_debug_seq_ops = {
+static const struct seq_operations vgic_debug_sops = {
        .start = vgic_debug_start,
        .next  = vgic_debug_next,
        .stop  = vgic_debug_stop,
        .show  = vgic_debug_show
 };
 
-static int debug_open(struct inode *inode, struct file *file)
-{
-       int ret;
-       ret = seq_open(file, &vgic_debug_seq_ops);
-       if (!ret) {
-               struct seq_file *seq;
-               /* seq_open will have modified file->private_data */
-               seq = file->private_data;
-               seq->private = inode->i_private;
-       }
-
-       return ret;
-};
-
-static const struct file_operations vgic_debug_fops = {
-       .owner   = THIS_MODULE,
-       .open    = debug_open,
-       .read    = seq_read,
-       .llseek  = seq_lseek,
-       .release = seq_release
-};
+DEFINE_SEQ_ATTRIBUTE(vgic_debug);
 
 void vgic_debug_init(struct kvm *kvm)
 {