@@ -405,11 +405,13 @@ static int __init efisubsys_init(void)
if (error)
goto err_remove_group;
- /* and the standard mountpoint for efivarfs */
- error = sysfs_create_mount_point(efi_kobj, "efivars");
- if (error) {
- pr_err("efivars: Subsystem registration failed.\n");
- goto err_remove_group;
+ if (efivars_kobject()) {
+ /* and the standard mountpoint for efivarfs */
+ error = sysfs_create_mount_point(efi_kobj, "efivars");
+ if (error) {
+ pr_err("efivars: Subsystem registration failed.\n");
+ goto err_remove_group;
+ }
}
if (efi_enabled(EFI_DBG) && efi_enabled(EFI_PRESERVE_BS_REGIONS))
This patch creates efivars mount point when active efivars abstraction be set. It is useful for userland to determine the availability of efivars filesystem. Cc: Matthias Brugger <mbrugger@suse.com> Cc: Fabian Vogt <fvogt@suse.com> Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org> Cc: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: "Lee, Chun-Yi" <jlee@suse.com> --- v2: Using efivars_kobject() helper instead of checking GetVariable or GetNextVariable EFI runtime services. Because the efivarfs code could be instantiated using a different efivars abstraction. drivers/firmware/efi/efi.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-)