devtmpfs: convert to pr_fmt

Use the pr_fmt() macro to prefix all the output with "devtmpfs: ".
while at it, convert printk(<LEVEL>) to pr_<level>().

Signed-off-by: Longlong Xia <xialonglong1@huawei.com>
Link: https://lore.kernel.org/r/20230202033203.1239239-2-xialonglong1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index e4bffeabf344eece30caa8c7fbef990535773303..95ebc18ded5099e04ce8a7ba543d986800ef5a9d 100644 (file)
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -13,6 +13,8 @@
  * overwrite the default setting if needed.
  */
 
+#define pr_fmt(fmt) "devtmpfs: " fmt
+
 #include <linux/kernel.h>
 #include <linux/syscalls.h>
 #include <linux/mount.h>
@@ -376,9 +378,9 @@ int __init devtmpfs_mount(void)
 
        err = init_mount("devtmpfs", "dev", "devtmpfs", DEVTMPFS_MFLAGS, NULL);
        if (err)
-               printk(KERN_INFO "devtmpfs: error mounting %i\n", err);
+               pr_info("error mounting %d\n", err);
        else
-               printk(KERN_INFO "devtmpfs: mounted\n");
+               pr_info("mounted\n");
        return err;
 }
 
@@ -460,14 +462,12 @@ int __init devtmpfs_init(void)
 
        mnt = vfs_kern_mount(&internal_fs_type, 0, "devtmpfs", opts);
        if (IS_ERR(mnt)) {
-               printk(KERN_ERR "devtmpfs: unable to create devtmpfs %ld\n",
-                               PTR_ERR(mnt));
+               pr_err("unable to create devtmpfs %ld\n", PTR_ERR(mnt));
                return PTR_ERR(mnt);
        }
        err = register_filesystem(&dev_fs_type);
        if (err) {
-               printk(KERN_ERR "devtmpfs: unable to register devtmpfs "
-                      "type %i\n", err);
+               pr_err("unable to register devtmpfs type %d\n", err);
                return err;
        }
 
@@ -480,12 +480,12 @@ int __init devtmpfs_init(void)
        }
 
        if (err) {
-               printk(KERN_ERR "devtmpfs: unable to create devtmpfs %i\n", err);
+               pr_err("unable to create devtmpfs %d\n", err);
                unregister_filesystem(&dev_fs_type);
                thread = NULL;
                return err;
        }
 
-       printk(KERN_INFO "devtmpfs: initialized\n");
+       pr_info("initialized\n");
        return 0;
 }