Djam/u-boot
1
0
Fork 0
mirror of https://github.com/u-boot/u-boot.git synced 2025-05-08 10:39:08 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

efi_loader: allow return value in EFI_CALL

Browse source 
Macro EFI_CALL was introduced to call an UEFI function.
Unfortunately it does not support return values.
Most UEFI functions have a return value.

So let's rename EFI_CALL to EFI_CALL_VOID and introduce a
new EFI_CALL macro that supports return values.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt 2017-09-15 10:06:10 +02:00 • committed by Alexander Graf
parent 29f1a3670e
commit ea630ce9ea
2 changed files with 17 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

17
include/efi_loader.h
View file

@ -42,9 +42,22 @@ const char *__efi_nesting_dec(void);
})
/*
* Callback into UEFI world from u-boot:
* Call non-void UEFI function from u-boot and retrieve return value:
*/
#define EFI_CALL(exp) do { \
#define EFI_CALL(exp) ({ \
debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \
assert(__efi_exit_check()); \
typeof(exp) _r = exp; \
assert(__efi_entry_check()); \
debug("%sEFI: %lu returned by %s\n", __efi_nesting_dec(), \
(unsigned long)((uintptr_t)_r & ~EFI_ERROR_MASK), #exp); \
_r; \
})
/*
* Call void UEFI function from u-boot:
*/
#define EFI_CALL_VOID(exp) do { \
debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \
assert(__efi_exit_check()); \
exp; \