[PATCH -next v2] scsi: hisi_sas: Convert to DEFINE_SHOW_ATTRIBUTE

[Qinglang Miao]

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Qinglang Miao <miaoqinglang@xxxxxxxxxx>
---
v2: based on linux-next(20200917), and can be applied to
    mainline cleanly now.

 drivers/scsi/hisi_sas/hisi_sas_main.c | 137 ++------------------------
 1 file changed, 10 insertions(+), 127 deletions(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index afc7ba892..11ad710cb 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -2870,19 +2870,7 @@ static int hisi_sas_debugfs_global_show(struct seq_file *s, void *p)
 	return 0;
 }
 
-static int hisi_sas_debugfs_global_open(struct inode *inode, struct file *filp)
-{
-	return single_open(filp, hisi_sas_debugfs_global_show,
-			   inode->i_private);
-}
-
-static const struct file_operations hisi_sas_debugfs_global_fops = {
-	.open = hisi_sas_debugfs_global_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_ATTRIBUTE(hisi_sas_debugfs_global);
 
 static int hisi_sas_debugfs_axi_show(struct seq_file *s, void *p)
 {
@@ -2897,19 +2885,7 @@ static int hisi_sas_debugfs_axi_show(struct seq_file *s, void *p)
 	return 0;
 }
 
-static int hisi_sas_debugfs_axi_open(struct inode *inode, struct file *filp)
-{
-	return single_open(filp, hisi_sas_debugfs_axi_show,
-			   inode->i_private);
-}
-
-static const struct file_operations hisi_sas_debugfs_axi_fops = {
-	.open = hisi_sas_debugfs_axi_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_ATTRIBUTE(hisi_sas_debugfs_axi);
 
 static int hisi_sas_debugfs_ras_show(struct seq_file *s, void *p)
 {
@@ -2924,19 +2900,7 @@ static int hisi_sas_debugfs_ras_show(struct seq_file *s, void *p)
 	return 0;
 }
 
-static int hisi_sas_debugfs_ras_open(struct inode *inode, struct file *filp)
-{
-	return single_open(filp, hisi_sas_debugfs_ras_show,
-			   inode->i_private);
-}
-
-static const struct file_operations hisi_sas_debugfs_ras_fops = {
-	.open = hisi_sas_debugfs_ras_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_ATTRIBUTE(hisi_sas_debugfs_ras);
 
 static int hisi_sas_debugfs_port_show(struct seq_file *s, void *p)
 {
@@ -2951,18 +2915,7 @@ static int hisi_sas_debugfs_port_show(struct seq_file *s, void *p)
 	return 0;
 }
 
-static int hisi_sas_debugfs_port_open(struct inode *inode, struct file *filp)
-{
-	return single_open(filp, hisi_sas_debugfs_port_show, inode->i_private);
-}
-
-static const struct file_operations hisi_sas_debugfs_port_fops = {
-	.open = hisi_sas_debugfs_port_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_ATTRIBUTE(hisi_sas_debugfs_port);
 
 static void hisi_sas_show_row_64(struct seq_file *s, int index,
 				 int sz, __le64 *ptr)
@@ -3019,18 +2972,7 @@ static int hisi_sas_debugfs_cq_show(struct seq_file *s, void *p)
 	return 0;
 }
 
-static int hisi_sas_debugfs_cq_open(struct inode *inode, struct file *filp)
-{
-	return single_open(filp, hisi_sas_debugfs_cq_show, inode->i_private);
-}
-
-static const struct file_operations hisi_sas_debugfs_cq_fops = {
-	.open = hisi_sas_debugfs_cq_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_ATTRIBUTE(hisi_sas_debugfs_cq);
 
 static void hisi_sas_dq_show_slot(struct seq_file *s, int slot, void *dq_ptr)
 {
@@ -3052,18 +2994,7 @@ static int hisi_sas_debugfs_dq_show(struct seq_file *s, void *p)
 	return 0;
 }
 
-static int hisi_sas_debugfs_dq_open(struct inode *inode, struct file *filp)
-{
-	return single_open(filp, hisi_sas_debugfs_dq_show, inode->i_private);
-}
-
-static const struct file_operations hisi_sas_debugfs_dq_fops = {
-	.open = hisi_sas_debugfs_dq_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_ATTRIBUTE(hisi_sas_debugfs_dq);
 
 static int hisi_sas_debugfs_iost_show(struct seq_file *s, void *p)
 {
@@ -3080,18 +3011,7 @@ static int hisi_sas_debugfs_iost_show(struct seq_file *s, void *p)
 	return 0;
 }
 
-static int hisi_sas_debugfs_iost_open(struct inode *inode, struct file *filp)
-{
-	return single_open(filp, hisi_sas_debugfs_iost_show, inode->i_private);
-}
-
-static const struct file_operations hisi_sas_debugfs_iost_fops = {
-	.open = hisi_sas_debugfs_iost_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_ATTRIBUTE(hisi_sas_debugfs_iost);
 
 static int hisi_sas_debugfs_iost_cache_show(struct seq_file *s, void *p)
 {
@@ -3117,20 +3037,7 @@ static int hisi_sas_debugfs_iost_cache_show(struct seq_file *s, void *p)
 	return 0;
 }
 
-static int hisi_sas_debugfs_iost_cache_open(struct inode *inode,
-					    struct file *filp)
-{
-	return single_open(filp, hisi_sas_debugfs_iost_cache_show,
-			   inode->i_private);
-}
-
-static const struct file_operations hisi_sas_debugfs_iost_cache_fops = {
-	.open = hisi_sas_debugfs_iost_cache_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_ATTRIBUTE(hisi_sas_debugfs_iost_cache);
 
 static int hisi_sas_debugfs_itct_show(struct seq_file *s, void *p)
 {
@@ -3147,18 +3054,7 @@ static int hisi_sas_debugfs_itct_show(struct seq_file *s, void *p)
 	return 0;
 }
 
-static int hisi_sas_debugfs_itct_open(struct inode *inode, struct file *filp)
-{
-	return single_open(filp, hisi_sas_debugfs_itct_show, inode->i_private);
-}
-
-static const struct file_operations hisi_sas_debugfs_itct_fops = {
-	.open = hisi_sas_debugfs_itct_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_ATTRIBUTE(hisi_sas_debugfs_itct);
 
 static int hisi_sas_debugfs_itct_cache_show(struct seq_file *s, void *p)
 {
@@ -3184,20 +3080,7 @@ static int hisi_sas_debugfs_itct_cache_show(struct seq_file *s, void *p)
 	return 0;
 }
 
-static int hisi_sas_debugfs_itct_cache_open(struct inode *inode,
-					    struct file *filp)
-{
-	return single_open(filp, hisi_sas_debugfs_itct_cache_show,
-			   inode->i_private);
-}
-
-static const struct file_operations hisi_sas_debugfs_itct_cache_fops = {
-	.open = hisi_sas_debugfs_itct_cache_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
+DEFINE_SHOW_ATTRIBUTE(hisi_sas_debugfs_itct_cache);
 
 static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
 {
-- 
2.23.0