Merge tag 'driver-core-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the set of changes for the driver core for 5.17-rc1.

  Lots of little things here, including:

   - kobj_type cleanups

   - auxiliary_bus documentation updates

   - auxiliary_device conversions for some drivers (relevant subsystems
     all have provided acks for these)

   - kernfs lock contention reduction for some workloads

   - other tiny cleanups and changes.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (43 commits)
  kobject documentation: remove default_attrs information
  drivers/firmware: Add missing platform_device_put() in sysfb_create_simplefb
  debugfs: lockdown: Allow reading debugfs files that are not world readable
  driver core: Make bus notifiers in right order in really_probe()
  driver core: Move driver_sysfs_remove() after driver_sysfs_add()
  firmware: edd: remove empty default_attrs array
  firmware: dmi-sysfs: use default_groups in kobj_type
  qemu_fw_cfg: use default_groups in kobj_type
  firmware: memmap: use default_groups in kobj_type
  sh: sq: use default_groups in kobj_type
  headers/uninline: Uninline single-use function: kobject_has_children()
  devtmpfs: mount with noexec and nosuid
  driver core: Simplify async probe test code by using ktime_ms_delta()
  nilfs2: use default_groups in kobj_type
  kobject: remove kset from struct kset_uevent_ops callbacks
  driver core: make kobj_type constant.
  driver core: platform: document registration-failure requirement
  vdpa/mlx5: Use auxiliary_device driver data helpers
  net/mlx5e: Use auxiliary_device driver data helpers
  soundwire: intel: Use auxiliary_device driver data helpers
  ...

1 files changed, 8 insertions, 2 deletions

diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 8be352ab4ddb..1e2c2d3882e2 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -29,6 +29,12 @@
 #include <uapi/linux/mount.h>
 #include "base.h"
 
+#ifdef CONFIG_DEVTMPFS_SAFE
+#define DEVTMPFS_MFLAGS       (MS_SILENT | MS_NOEXEC | MS_NOSUID)
+#else
+#define DEVTMPFS_MFLAGS       (MS_SILENT)
+#endif
+
 static struct task_struct *thread;
 
 static int __initdata mount_dev = IS_ENABLED(CONFIG_DEVTMPFS_MOUNT);
@@ -363,7 +369,7 @@ int __init devtmpfs_mount(void)
 	if (!thread)
 		return 0;
 
-	err = init_mount("devtmpfs", "dev", "devtmpfs", MS_SILENT, NULL);
+	err = init_mount("devtmpfs", "dev", "devtmpfs", DEVTMPFS_MFLAGS, NULL);
 	if (err)
 		printk(KERN_INFO "devtmpfs: error mounting %i\n", err);
 	else
@@ -412,7 +418,7 @@ static noinline int __init devtmpfs_setup(void *p)
 	err = ksys_unshare(CLONE_NEWNS);
 	if (err)
 		goto out;
-	err = init_mount("devtmpfs", "/", "devtmpfs", MS_SILENT, NULL);
+	err = init_mount("devtmpfs", "/", "devtmpfs", DEVTMPFS_MFLAGS, NULL);
 	if (err)
 		goto out;
 	init_chdir("/.."); /* will traverse into overmounted root */