[PATCH] s390: convert to DEFINE_SHOW_ATTRIBUTE

[Yangtao Li]

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.win...@gmail.com>
---
 drivers/s390/block/dasd.c     | 15 +--------------
 drivers/s390/cio/qdio_debug.c | 16 ++--------------
 2 files changed, 3 insertions(+), 28 deletions(-)

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 5e9ebdb0594c..397af07e4d88 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1192,20 +1192,7 @@ static int dasd_hosts_show(struct seq_file *m, void *v)
        return rc;
 }
 
-static int dasd_hosts_open(struct inode *inode, struct file *file)
-{
-       struct dasd_device *device = inode->i_private;
-
-       return single_open(file, dasd_hosts_show, device);
-}
-
-static const struct file_operations dasd_hosts_fops = {
-       .owner          = THIS_MODULE,
-       .open           = dasd_hosts_open,
-       .read           = seq_read,
-       .llseek         = seq_lseek,
-       .release        = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(dasd_hosts);
 
 static void dasd_hosts_exit(struct dasd_device *device)
 {
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c
index 68a82f3e2e92..040061f2bfff 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -190,19 +190,7 @@ static int qstat_show(struct seq_file *m, void *v)
        return 0;
 }
 
-static int qstat_seq_open(struct inode *inode, struct file *filp)
-{
-       return single_open(filp, qstat_show,
-                          file_inode(filp)->i_private);
-}
-
-static const struct file_operations debugfs_fops = {
-       .owner   = THIS_MODULE,
-       .open    = qstat_seq_open,
-       .read    = seq_read,
-       .llseek  = seq_lseek,
-       .release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(qstat);
 
 static char *qperf_names[] = {
        "Assumed adapter interrupts",
@@ -306,7 +294,7 @@ static void setup_debugfs_entry(struct qdio_q *q)
                 q->is_input_q ? "input" : "output",
                 q->nr);
        q->debugfs_q = debugfs_create_file(name, S_IFREG | S_IRUGO | S_IWUSR,
-                               q->irq_ptr->debugfs_dev, q, &debugfs_fops);
+                               q->irq_ptr->debugfs_dev, q, &qstat_fops);
        if (IS_ERR(q->debugfs_q))
                q->debugfs_q = NULL;
 }
-- 
2.17.0