KVM: PPC: Book3S HV: Change to use DEFINE_SHOW_ATTRIBUTE macro

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
Signed-off-by: NYangtao Li <tiny.windzz@gmail.com>
Signed-off-by: NPaul Mackerras <paulus@ozlabs.org>

arch/powerpc/kvm/book3s_xics.c

@@ -1015,17 +1015,7 @@ static int xics_debug_show(struct seq_file *m, void *private)
 	return 0;
 }
 
-static int xics_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, xics_debug_show, inode->i_private);
-}
-
-static const struct file_operations xics_debug_fops = {
-	.open = xics_debug_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(xics_debug);
 
 static void xics_debugfs_init(struct kvmppc_xics *xics)
 {

arch/powerpc/kvm/book3s_xive.c

@@ -1968,17 +1968,7 @@ static int xive_debug_show(struct seq_file *m, void *private)
 	return 0;
 }
 
-static int xive_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, xive_debug_show, inode->i_private);
-}
-
-static const struct file_operations xive_debug_fops = {
-	.open = xive_debug_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(xive_debug);
 
 static void xive_debugfs_init(struct kvmppc_xive *xive)
 {