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x86/efi: Deduplicate efi_char16_printk()

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Eliminate the separate 32-bit and 64x- bit code paths by way of the shiny
new efi_call_proto() macro.

No functional change intended.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1485868902-20401-3-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Lukas Wunner 2017-01-31 13:21:34 +00:00 committed by Ingo Molnar
parent 2bd79f30ee
commit db4545d9a7
2 changed files with 6 additions and 28 deletions
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26
arch/x86/boot/compressed/eboot.c
View File

@ -101,30 +101,8 @@ efi_open_volume(efi_system_table_t *sys_table, void *__image, void **__fh)
void efi_char16_printk(efi_system_table_t *table, efi_char16_t *str)
{
unsigned long output_string;
size_t offset;
if (efi_early->is64) {
struct efi_simple_text_output_protocol_64 *out;
u64 *func;
offset = offsetof(typeof(*out), output_string);
output_string = efi_early->text_output + offset;
out = (typeof(out))(unsigned long)efi_early->text_output;
func = (u64 *)output_string;
efi_early->call(*func, out, str);
} else {
struct efi_simple_text_output_protocol_32 *out;
u32 *func;
offset = offsetof(typeof(*out), output_string);
output_string = efi_early->text_output + offset;
out = (typeof(out))(unsigned long)efi_early->text_output;
func = (u32 *)output_string;
efi_early->call(*func, out, str);
}
efi_call_proto(efi_simple_text_output_protocol, output_string,
efi_early->text_output, str);
}
static efi_status_t

8
include/linux/efi.h
View File

@ -1240,17 +1240,17 @@ struct efivar_entry {
bool deleting;
};
struct efi_simple_text_output_protocol_32 {
typedef struct {
u32 reset;
u32 output_string;
u32 test_string;
};
} efi_simple_text_output_protocol_32_t;
struct efi_simple_text_output_protocol_64 {
typedef struct {
u64 reset;
u64 output_string;
u64 test_string;
};
} efi_simple_text_output_protocol_64_t;
struct efi_simple_text_output_protocol {
void *reset;