[PATCH -next] x86/xen: Convert to DEFINE_SHOW_ATTRIBUTE

[Qinglang Miao <miaoqinglang@xxxxxxxxxx>]

From: Chen Huang <chenhuang5@xxxxxxxxxx>

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Chen Huang <chenhuang5@xxxxxxxxxx>
---
 arch/x86/xen/p2m.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 4cf680e2e..0f4a449de 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -799,17 +799,7 @@ static int p2m_dump_show(struct seq_file *m, void *v)
        return 0;
 }
 
-static int p2m_dump_open(struct inode *inode, struct file *filp)
-{
-       return single_open(filp, p2m_dump_show, NULL);
-}
-
-static const struct file_operations p2m_dump_fops = {
-       .open           = p2m_dump_open,
-       .read_iter              = seq_read_iter,
-       .llseek         = seq_lseek,
-       .release        = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(p2m_dump);
 
 static struct dentry *d_mmu_debug;
 
-- 
2.17.1