3 files changed, 7 insertions, 55 deletions

diff --git a/drivers/scsi/bfa/bfad_debugfs.c b/drivers/scsi/bfa/bfad_debugfs.c
index b63d534192e3..8e83d0474fe7 100644
--- a/drivers/scsi/bfa/bfad_debugfs.c
+++ b/drivers/scsi/bfa/bfad_debugfs.c
@@ -173,31 +173,9 @@ bfad_debugfs_open_reg(struct inode *inode, struct file *file)
 static loff_t
 bfad_debugfs_lseek(struct file *file, loff_t offset, int orig)
 {
-	struct bfad_debug_info *debug;
-	loff_t pos = file->f_pos;
-
-	debug = file->private_data;
-
-	switch (orig) {
-	case 0:
-		file->f_pos = offset;
-		break;
-	case 1:
-		file->f_pos += offset;
-		break;
-	case 2:
-		file->f_pos = debug->buffer_len + offset;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	if (file->f_pos < 0 || file->f_pos > debug->buffer_len) {
-		file->f_pos = pos;
-		return -EINVAL;
-	}
-
-	return file->f_pos;
+	struct bfad_debug_info *debug = file->private_data;
+	return fixed_size_llseek(file, offset, orig,
+				debug->buffer_len);
 }
 
 static ssize_t
diff --git a/drivers/scsi/fnic/fnic_debugfs.c b/drivers/scsi/fnic/fnic_debugfs.c
index 85e1ffd0e5c5..cbcb0121c84d 100644
--- a/drivers/scsi/fnic/fnic_debugfs.c
+++ b/drivers/scsi/fnic/fnic_debugfs.c
@@ -164,20 +164,8 @@ static loff_t fnic_trace_debugfs_lseek(struct file *file,
 					int howto)
 {
 	fnic_dbgfs_t *fnic_dbg_prt = file->private_data;
-	loff_t pos = -1;
-
-	switch (howto) {
-	case 0:
-		pos = offset;
-		break;
-	case 1:
-		pos = file->f_pos + offset;
-		break;
-	case 2:
-		pos = fnic_dbg_prt->buffer_len + offset;
-	}
-	return (pos < 0 || pos > fnic_dbg_prt->buffer_len) ?
-			  -EINVAL : (file->f_pos = pos);
+	return fixed_size_llseek(file, offset, howto,
+				fnic_dbg_prt->buffer_len);
 }
 
 /*
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index f525ecb7a9c6..60084e6ad2f2 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -1165,22 +1165,8 @@ out:
 static loff_t
 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence)
 {
-	struct lpfc_debug *debug;
-	loff_t pos = -1;
-
-	debug = file->private_data;
-
-	switch (whence) {
-	case 0:
-		pos = off;
-		break;
-	case 1:
-		pos = file->f_pos + off;
-		break;
-	case 2:
-		pos = debug->len + off;
-	}
-	return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos);
+	struct lpfc_debug *debug = file->private_data;
+	return fixed_size_llseek(file, off, whence, debug->len);
 }
 
 /**