x86/efi: Implement a __efi_call_virt macro
For i386, all the EFI system runtime services functions return efi_status_t
except efi_reset_system_system. Therefore, not all functions can be covered
by the same macro in case the macro needs to do more than calling the function
(i.e., return a value). The purpose of the __efi_call_virt macro is to be used
when no return value is expected.
For x86_64, this macro would not be needed as all the runtime services return
u64. However, the same code is used for both x86_64 and i386. Thus, the macro
__efi_call_virt is also defined to not break compilation.
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Cc: Borislav Petkov <bp@suse.de>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 8f6531e..835b248 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -202,8 +202,8 @@
unsigned long data_size,
efi_char16_t *data)
{
- efi_call_virt(reset_system, reset_type, status,
- data_size, data);
+ __efi_call_virt(reset_system, reset_type, status,
+ data_size, data);
}
static efi_status_t virt_efi_update_capsule(efi_capsule_header_t **capsules,