1 files changed, 8 insertions, 42 deletions

diff --git a/arch/mips/cavium-octeon/oct_ilm.c b/arch/mips/cavium-octeon/oct_ilm.c
index 2d68a39f1443..dc05262e85ff 100644
--- a/arch/mips/cavium-octeon/oct_ilm.c
+++ b/arch/mips/cavium-octeon/oct_ilm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <linux/fs.h>
 #include <linux/interrupt.h>
 #include <asm/octeon/octeon.h>
@@ -27,7 +28,7 @@ struct latency_info {
 static struct latency_info li;
 static struct dentry *dir;
 
-static int show_latency(struct seq_file *m, void *v)
+static int oct_ilm_show(struct seq_file *m, void *v)
 {
 	u64 cpuclk, avg, max, min;
 	struct latency_info curr_li = li;
@@ -42,18 +43,7 @@ static int show_latency(struct seq_file *m, void *v)
 		   curr_li.interrupt_cnt, avg, max, min);
 	return 0;
 }
-
-static int oct_ilm_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, show_latency, NULL);
-}
-
-static const struct file_operations oct_ilm_ops = {
-	.open = oct_ilm_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(oct_ilm);
 
 static int reset_statistics(void *data, u64 value)
 {
@@ -61,33 +51,13 @@ static int reset_statistics(void *data, u64 value)
 	return 0;
 }
 
-DEFINE_SIMPLE_ATTRIBUTE(reset_statistics_ops, NULL, reset_statistics, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(reset_statistics_ops, NULL, reset_statistics, "%llu\n");
 
-static int init_debufs(void)
+static void init_debugfs(void)
 {
-	struct dentry *show_dentry;
 	dir = debugfs_create_dir("oct_ilm", 0);
-	if (!dir) {
-		pr_err("oct_ilm: failed to create debugfs entry oct_ilm\n");
-		return -1;
-	}
-
-	show_dentry = debugfs_create_file("statistics", 0222, dir, NULL,
-					  &oct_ilm_ops);
-	if (!show_dentry) {
-		pr_err("oct_ilm: failed to create debugfs entry oct_ilm/statistics\n");
-		return -1;
-	}
-
-	show_dentry = debugfs_create_file("reset", 0222, dir, NULL,
-					  &reset_statistics_ops);
-	if (!show_dentry) {
-		pr_err("oct_ilm: failed to create debugfs entry oct_ilm/reset\n");
-		return -1;
-	}
-
-	return 0;
-
+	debugfs_create_file("statistics", 0222, dir, NULL, &oct_ilm_fops);
+	debugfs_create_file("reset", 0222, dir, NULL, &reset_statistics_ops);
 }
 
 static void init_latency_info(struct latency_info *li, int startup)
@@ -169,11 +139,7 @@ static __init int oct_ilm_module_init(void)
 	int rc;
 	int irq = OCTEON_IRQ_TIMER0 + TIMER_NUM;
 
-	rc = init_debufs();
-	if (rc) {
-		WARN(1, "Could not create debugfs entries");
-		return rc;
-	}
+	init_debugfs();
 
 	rc = request_irq(irq, cvm_oct_ciu_timer_interrupt, IRQF_NO_THREAD,
 			 "oct_ilm", 0);