@@ -1597,52 +1597,38 @@ static u32 applespi_notify(acpi_handle gpe_device, u32 gpe, void *context)
static int applespi_get_saved_bl_level(struct applespi_data *applespi)
{
- struct efivar_entry *efivar_entry;
+ efi_status_t sts = EFI_NOT_FOUND;
u16 efi_data = 0;
- unsigned long efi_data_len;
- int sts;
-
- efivar_entry = kmalloc(sizeof(*efivar_entry), GFP_KERNEL);
- if (!efivar_entry)
- return -ENOMEM;
-
- memcpy(efivar_entry->var.VariableName, EFI_BL_LEVEL_NAME,
- sizeof(EFI_BL_LEVEL_NAME));
- efivar_entry->var.VendorGuid = EFI_BL_LEVEL_GUID;
- efi_data_len = sizeof(efi_data);
+ unsigned long efi_data_len = sizeof(efi_data);
- sts = efivar_entry_get(efivar_entry, NULL, &efi_data_len, &efi_data);
- if (sts && sts != -ENOENT)
+ if (efi_rt_services_supported(EFI_RT_SUPPORTED_GET_VARIABLE))
+ sts = efi.get_variable(EFI_BL_LEVEL_NAME, &EFI_BL_LEVEL_GUID,
+ NULL, &efi_data_len, &efi_data);
+ if (sts != EFI_SUCCESS && sts != EFI_NOT_FOUND)
dev_warn(&applespi->spi->dev,
- "Error getting backlight level from EFI vars: %d\n",
+ "Error getting backlight level from EFI vars: 0x%lx\n",
sts);
- kfree(efivar_entry);
-
- return sts ? sts : efi_data;
+ return sts != EFI_SUCCESS ? -ENODEV : efi_data;
}
static void applespi_save_bl_level(struct applespi_data *applespi,
unsigned int level)
{
- efi_guid_t efi_guid;
+ efi_status_t sts = EFI_UNSUPPORTED;
u32 efi_attr;
- unsigned long efi_data_len;
u16 efi_data;
- int sts;
- /* Save keyboard backlight level */
- efi_guid = EFI_BL_LEVEL_GUID;
efi_data = (u16)level;
- efi_data_len = sizeof(efi_data);
efi_attr = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS |
EFI_VARIABLE_RUNTIME_ACCESS;
- sts = efivar_entry_set_safe((efi_char16_t *)EFI_BL_LEVEL_NAME, efi_guid,
- efi_attr, true, efi_data_len, &efi_data);
- if (sts)
+ if (efi_rt_services_supported(EFI_RT_SUPPORTED_SET_VARIABLE))
+ sts = efi.set_variable(EFI_BL_LEVEL_NAME, &EFI_BL_LEVEL_GUID,
+ efi_attr, sizeof(efi_data), &efi_data);
+ if (sts != EFI_SUCCESS)
dev_warn(&applespi->spi->dev,
- "Error saving backlight level to EFI vars: %d\n", sts);
+ "Error saving backlight level to EFI vars: 0x%lx\n", sts);
}
static int applespi_probe(struct spi_device *spi)
This driver abuses the efivar API, by using a few of its helpers on entries that were not instantiated by the API itself. This is a problem as future cleanup work on efivars is complicated by this. So let's just switch to the get/set variable runtime wrappers directly. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> --- drivers/input/keyboard/applespi.c | 42 +++++++------------- 1 file changed, 14 insertions(+), 28 deletions(-)