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Subject[PATCH 21/25] efi/libstub: drop protocol argument from efi_call_proto() macro
Date
After refactoring the mixed mode support code, efi_call_proto()
no longer uses its protocol argument in any of its implementation,
so let's remove it altogether.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
arch/arm/include/asm/efi.h | 3 +--
arch/arm64/include/asm/efi.h | 3 +--
arch/x86/boot/compressed/eboot.c | 23 ++++++++-----------
arch/x86/include/asm/efi.h | 6 ++---
.../firmware/efi/libstub/efi-stub-helper.c | 6 ++---
drivers/firmware/efi/libstub/random.c | 8 +++----
drivers/firmware/efi/libstub/tpm.c | 11 ++++-----
7 files changed, 25 insertions(+), 35 deletions(-)

diff --git a/arch/arm/include/asm/efi.h b/arch/arm/include/asm/efi.h
index 58e5acc424a0..bdc5288cc643 100644
--- a/arch/arm/include/asm/efi.h
+++ b/arch/arm/include/asm/efi.h
@@ -57,8 +57,7 @@ void efi_virtmap_unload(void);
#define efi_table_attr(table, attr, instance) \
instance->attr

-#define efi_call_proto(protocol, f, instance, ...) \
- instance->f(instance, ##__VA_ARGS__)
+#define efi_call_proto(inst, func, ...) inst->func(inst, ##__VA_ARGS__)

struct screen_info *alloc_screen_info(void);
void free_screen_info(struct screen_info *si);
diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h
index d73693177f31..4bc1e89671ab 100644
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -100,8 +100,7 @@ static inline unsigned long efi_get_max_initrd_addr(unsigned long dram_base,
#define efi_table_attr(table, attr, instance) \
instance->attr

-#define efi_call_proto(protocol, f, instance, ...) \
- instance->f(instance, ##__VA_ARGS__)
+#define efi_call_proto(inst, func, ...) inst->func(inst, ##__VA_ARGS__)

#define alloc_screen_info(x...) &screen_info

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index ec92c4decc86..751fd5fc3367 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -69,27 +69,24 @@ preserve_pci_rom_image(efi_pci_io_protocol_t *pci, struct pci_setup_rom **__rom)
rom->pcilen = pci->romsize;
*__rom = rom;

- status = efi_call_proto(efi_pci_io_protocol, pci.read, pci,
- EfiPciIoWidthUint16, PCI_VENDOR_ID, 1,
- &rom->vendor);
+ status = efi_call_proto(pci, pci.read, EfiPciIoWidthUint16,
+ PCI_VENDOR_ID, 1, &rom->vendor);

if (status != EFI_SUCCESS) {
efi_printk("Failed to read rom->vendor\n");
goto free_struct;
}

- status = efi_call_proto(efi_pci_io_protocol, pci.read, pci,
- EfiPciIoWidthUint16, PCI_DEVICE_ID, 1,
- &rom->devid);
+ status = efi_call_proto(pci, pci.read, EfiPciIoWidthUint16,
+ PCI_DEVICE_ID, 1, &rom->devid);

if (status != EFI_SUCCESS) {
efi_printk("Failed to read rom->devid\n");
goto free_struct;
}

- status = efi_call_proto(efi_pci_io_protocol, get_location, pci,
- &rom->segment, &rom->bus, &rom->device,
- &rom->function);
+ status = efi_call_proto(pci, get_location, &rom->segment, &rom->bus,
+ &rom->device, &rom->function);

if (status != EFI_SUCCESS)
goto free_struct;
@@ -191,7 +188,7 @@ static void retrieve_apple_device_properties(struct boot_params *boot_params)
return;
}

- efi_call_proto(apple_properties_protocol, get_all, p, NULL, &size);
+ efi_call_proto(p, get_all, NULL, &size);
if (!size)
return;

@@ -204,8 +201,7 @@ static void retrieve_apple_device_properties(struct boot_params *boot_params)
return;
}

- status = efi_call_proto(apple_properties_protocol, get_all, p,
- new->data, &size);
+ status = efi_call_proto(p, get_all, new->data, &size);

if (status == EFI_BUFFER_TOO_SMALL)
efi_call_early(free_pool, new);
@@ -280,8 +276,7 @@ setup_uga(struct screen_info *si, efi_guid_t *uga_proto, unsigned long size)
pciio = NULL;
efi_call_early(handle_protocol, handle, &pciio_proto, &pciio);

- status = efi_call_proto(efi_uga_draw_protocol, get_mode, uga,
- &w, &h, &depth, &refresh);
+ status = efi_call_proto(uga, get_mode, &w, &h, &depth, &refresh);
if (status == EFI_SUCCESS && (!first_uga || pciio)) {
width = w;
height = h;
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 1817f350618e..b7cd14e3a634 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -227,10 +227,10 @@ static inline bool efi_is_native(void)
__ret; \
})

-#define efi_call_proto(protocol, f, instance, ...) \
+#define efi_call_proto(inst, func, ...) \
(efi_is_native() \
- ? instance->f(instance, ##__VA_ARGS__) \
- : efi64_thunk(instance->mixed_mode.f, instance, ##__VA_ARGS__))
+ ? inst->func(inst, ##__VA_ARGS__) \
+ : efi64_thunk(inst->mixed_mode.func, inst, ##__VA_ARGS__))

#define efi_call_early(f, ...) \
(efi_is_native() \
diff --git a/drivers/firmware/efi/libstub/efi-stub-helper.c b/drivers/firmware/efi/libstub/efi-stub-helper.c
index b715ac6a0c94..48eab7b9d066 100644
--- a/drivers/firmware/efi/libstub/efi-stub-helper.c
+++ b/drivers/firmware/efi/libstub/efi-stub-helper.c
@@ -953,9 +953,7 @@ void *get_efi_config_table(efi_guid_t guid)

void efi_char16_printk(efi_char16_t *str)
{
- efi_call_proto(efi_simple_text_output_protocol,
- output_string,
- efi_table_attr(efi_system_table, con_out,
+ efi_call_proto(efi_table_attr(efi_system_table, con_out,
efi_system_table()),
- str);
+ output_string, str);
}
diff --git a/drivers/firmware/efi/libstub/random.c b/drivers/firmware/efi/libstub/random.c
index 9b30d953d13b..fbd5b5724b19 100644
--- a/drivers/firmware/efi/libstub/random.c
+++ b/drivers/firmware/efi/libstub/random.c
@@ -37,7 +37,7 @@ efi_status_t efi_get_random_bytes(unsigned long size, u8 *out)
if (status != EFI_SUCCESS)
return status;

- return efi_call_proto(efi_rng_protocol, get_rng, rng, NULL, size, out);
+ return efi_call_proto(rng, get_rng, NULL, size, out);
}

/*
@@ -173,7 +173,7 @@ efi_status_t efi_random_get_seed(void)
if (status != EFI_SUCCESS)
return status;

- status = efi_call_proto(efi_rng_protocol, get_rng, rng, &rng_algo_raw,
+ status = efi_call_proto(rng, get_rng, &rng_algo_raw,
EFI_RANDOM_SEED_SIZE, seed->bits);

if (status == EFI_UNSUPPORTED)
@@ -181,8 +181,8 @@ efi_status_t efi_random_get_seed(void)
* Use whatever algorithm we have available if the raw algorithm
* is not implemented.
*/
- status = efi_call_proto(efi_rng_protocol, get_rng, rng, NULL,
- EFI_RANDOM_SEED_SIZE, seed->bits);
+ status = efi_call_proto(rng, get_rng, NULL,
+ EFI_RANDOM_SEED_SIZE, seed->bits);

if (status != EFI_SUCCESS)
goto err_freepool;
diff --git a/drivers/firmware/efi/libstub/tpm.c b/drivers/firmware/efi/libstub/tpm.c
index f6fa1c9de77c..4a0017a181bf 100644
--- a/drivers/firmware/efi/libstub/tpm.c
+++ b/drivers/firmware/efi/libstub/tpm.c
@@ -77,15 +77,14 @@ void efi_retrieve_tpm2_eventlog(void)
if (status != EFI_SUCCESS)
return;

- status = efi_call_proto(efi_tcg2_protocol, get_event_log,
- tcg2_protocol, version, &log_location,
- &log_last_entry, &truncated);
+ status = efi_call_proto(tcg2_protocol, get_event_log, version,
+ &log_location, &log_last_entry, &truncated);

if (status != EFI_SUCCESS || !log_location) {
version = EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2;
- status = efi_call_proto(efi_tcg2_protocol, get_event_log,
- tcg2_protocol, version, &log_location,
- &log_last_entry, &truncated);
+ status = efi_call_proto(tcg2_protocol, get_event_log, version,
+ &log_location, &log_last_entry,
+ &truncated);
if (status != EFI_SUCCESS || !log_location)
return;

--
2.20.1
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