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| author | Ard Biesheuvel <ardb@kernel.org> | 2022-09-26 22:14:23 +0300 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2022-11-18 11:14:08 +0300 |
| commit | a61962d8e7d3f11f68cbaebd477fbd8e1f7b9f6d (patch) | |
| tree | 5d7ba2dd59bde17a475e7688f5969f472b9f316f /drivers/firmware/efi/libstub | |
| parent | 70912985545adc81716164271401c9ffb0acdd0f (diff) | |
| download | linux-a61962d8e7d3f11f68cbaebd477fbd8e1f7b9f6d.tar.xz | |
efi: libstub: Permit mixed mode return types other than efi_status_t
Rework the EFI stub macro wrappers around protocol method calls and
other indirect calls in order to allow return types other than
efi_status_t. This means the widening should be conditional on whether
or not the return type is efi_status_t, and should be omitted otherwise.
Also, switch to _Generic() to implement the type based compile time
conditionals, which is more concise, and distinguishes between
efi_status_t and u64 properly.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'drivers/firmware/efi/libstub')
| -rw-r--r-- | drivers/firmware/efi/libstub/efistub.h | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h index 1fde9cbe6899..8bb11fb309c3 100644 --- a/drivers/firmware/efi/libstub/efistub.h +++ b/drivers/firmware/efi/libstub/efistub.h @@ -44,15 +44,23 @@ efi_status_t __efiapi efi_pe_entry(efi_handle_t handle, #ifndef ARCH_HAS_EFISTUB_WRAPPERS -#define efi_is_native() (true) -#define efi_bs_call(func, ...) efi_system_table->boottime->func(__VA_ARGS__) -#define efi_rt_call(func, ...) efi_system_table->runtime->func(__VA_ARGS__) -#define efi_dxe_call(func, ...) efi_dxe_table->func(__VA_ARGS__) -#define efi_table_attr(inst, attr) (inst->attr) -#define efi_call_proto(inst, func, ...) inst->func(inst, ##__VA_ARGS__) +#define efi_is_native() (true) +#define efi_table_attr(inst, attr) (inst)->attr +#define efi_fn_call(inst, func, ...) (inst)->func(__VA_ARGS__) #endif +#define efi_call_proto(inst, func, ...) ({ \ + __typeof__(inst) __inst = (inst); \ + efi_fn_call(__inst, func, __inst, ##__VA_ARGS__); \ +}) +#define efi_bs_call(func, ...) \ + efi_fn_call(efi_table_attr(efi_system_table, boottime), func, ##__VA_ARGS__) +#define efi_rt_call(func, ...) \ + efi_fn_call(efi_table_attr(efi_system_table, runtime), func, ##__VA_ARGS__) +#define efi_dxe_call(func, ...) \ + efi_fn_call(efi_dxe_table, func, ##__VA_ARGS__) + #define efi_info(fmt, ...) \ efi_printk(KERN_INFO fmt, ##__VA_ARGS__) #define efi_warn(fmt, ...) \ |