Commit 6bb3703a authored by Masahisa Kojima's avatar Masahisa Kojima Committed by Ard Biesheuvel
Browse files

efi: expose efivar generic ops register function 



This is a preparation for supporting efivar operations provided by other
than efi subsystem.  Both register and unregister functions are exposed
so that non-efi subsystem can revert the efi generic operation.

Acked-by: default avatarSumit Garg <sumit.garg@linaro.org>
Co-developed-by: default avatarIlias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: default avatarIlias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: default avatarMasahisa Kojima <masahisa.kojima@linaro.org>
Signed-off-by: default avatarArd Biesheuvel <ardb@kernel.org>
parent cdb46a8a

drivers/firmware/efi/efi.c

+12 −0
Original line number Diff line number Diff line
@@ -231,6 +231,18 @@ static void generic_ops_unregister(void) 
	efivars_unregister(&generic_efivars);

}



void efivars_generic_ops_register(void)

{

	generic_ops_register();

}

EXPORT_SYMBOL_GPL(efivars_generic_ops_register);



void efivars_generic_ops_unregister(void)

{

	generic_ops_unregister();

}

EXPORT_SYMBOL_GPL(efivars_generic_ops_unregister);



#ifdef CONFIG_EFI_CUSTOM_SSDT_OVERLAYS

#define EFIVAR_SSDT_NAME_MAX	16UL

static char efivar_ssdt[EFIVAR_SSDT_NAME_MAX] __initdata;

include/linux/efi.h

+3 −0
Original line number Diff line number Diff line
@@ -1348,4 +1348,7 @@ bool efi_config_table_is_usable(const efi_guid_t *guid, unsigned long table) 


umode_t efi_attr_is_visible(struct kobject *kobj, struct attribute *attr, int n);



void efivars_generic_ops_register(void);

void efivars_generic_ops_unregister(void);



#endif /* _LINUX_EFI_H */