diff options
| author | Peter Jones <pjones@redhat.com> | 2020-06-15 23:24:08 +0300 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2020-06-16 12:01:07 +0300 |
| commit | 435d1a471598752446a72ad1201b3c980526d869 (patch) | |
| tree | 5ac4ab29974a49acf3b768f4fc83121626511084 /drivers/firmware/efi/efi.c | |
| parent | 8c0a839c2bccb756454e35e8977e44fcf2bd417e (diff) | |
| download | linux-435d1a471598752446a72ad1201b3c980526d869.tar.xz | |
efi: Make it possible to disable efivar_ssdt entirely
In most cases, such as CONFIG_ACPI_CUSTOM_DSDT and
CONFIG_ACPI_TABLE_UPGRADE, boot-time modifications to firmware tables
are tied to specific Kconfig options. Currently this is not the case
for modifying the ACPI SSDT via the efivar_ssdt kernel command line
option and associated EFI variable.
This patch adds CONFIG_EFI_CUSTOM_SSDT_OVERLAYS, which defaults
disabled, in order to allow enabling or disabling that feature during
the build.
Cc: <stable@vger.kernel.org>
Signed-off-by: Peter Jones <pjones@redhat.com>
Link: https://lore.kernel.org/r/20200615202408.2242614-1-pjones@redhat.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'drivers/firmware/efi/efi.c')
| -rw-r--r-- | drivers/firmware/efi/efi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index edc5d36caf54..5114cae4ec97 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -189,7 +189,7 @@ static void generic_ops_unregister(void) efivars_unregister(&generic_efivars); } -#if IS_ENABLED(CONFIG_ACPI) +#ifdef CONFIG_EFI_CUSTOM_SSDT_OVERLAYS #define EFIVAR_SSDT_NAME_MAX 16 static char efivar_ssdt[EFIVAR_SSDT_NAME_MAX] __initdata; static int __init efivar_ssdt_setup(char *str) |