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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2018-03-12 11:45:00 +0300
committerIngo Molnar <mingo@kernel.org>2018-03-12 12:05:02 +0300
commit36b649760e94968e0495b73284aaf07eed0a328f (patch)
treedcd045f5cc5ab161d3b19a7bf85dff012f629d8e /drivers/firmware
parent136d5d57e35cc6985c57d23d0c823133e3508bed (diff)
downloadlinux-36b649760e94968e0495b73284aaf07eed0a328f.tar.xz
efi: Use string literals for efi_char16_t variable initializers
Now that we unambiguously build the entire kernel with -fshort-wchar, it is no longer necessary to open code efi_char16_t[] initializers as arrays of characters, and we can move to the L"xxx" notation instead. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Lukas Wunner <lukas@wunner.de> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/20180312084500.10764-6-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/firmware')
-rw-r--r--drivers/firmware/efi/libstub/Makefile2
-rw-r--r--drivers/firmware/efi/libstub/secureboot.c12
-rw-r--r--drivers/firmware/efi/libstub/tpm.c7
3 files changed, 6 insertions, 15 deletions
diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index 7b3ba40f0745..a34e9290a699 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -9,7 +9,7 @@ cflags-$(CONFIG_X86_32) := -march=i386
cflags-$(CONFIG_X86_64) := -mcmodel=small
cflags-$(CONFIG_X86) += -m$(BITS) -D__KERNEL__ -O2 \
-fPIC -fno-strict-aliasing -mno-red-zone \
- -mno-mmx -mno-sse
+ -mno-mmx -mno-sse -fshort-wchar
cflags-$(CONFIG_ARM64) := $(subst -pg,,$(KBUILD_CFLAGS)) -fpie
cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) \
diff --git a/drivers/firmware/efi/libstub/secureboot.c b/drivers/firmware/efi/libstub/secureboot.c
index 959777ec8a77..8f07eb414c00 100644
--- a/drivers/firmware/efi/libstub/secureboot.c
+++ b/drivers/firmware/efi/libstub/secureboot.c
@@ -16,18 +16,12 @@
/* BIOS variables */
static const efi_guid_t efi_variable_guid = EFI_GLOBAL_VARIABLE_GUID;
-static const efi_char16_t efi_SecureBoot_name[] = {
- 'S', 'e', 'c', 'u', 'r', 'e', 'B', 'o', 'o', 't', 0
-};
-static const efi_char16_t efi_SetupMode_name[] = {
- 'S', 'e', 't', 'u', 'p', 'M', 'o', 'd', 'e', 0
-};
+static const efi_char16_t efi_SecureBoot_name[] = L"SecureBoot";
+static const efi_char16_t efi_SetupMode_name[] = L"SetupMode";
/* SHIM variables */
static const efi_guid_t shim_guid = EFI_SHIM_LOCK_GUID;
-static efi_char16_t const shim_MokSBState_name[] = {
- 'M', 'o', 'k', 'S', 'B', 'S', 't', 'a', 't', 'e', 0
-};
+static const efi_char16_t shim_MokSBState_name[] = L"MokSBState";
#define get_efi_var(name, vendor, ...) \
efi_call_runtime(get_variable, \
diff --git a/drivers/firmware/efi/libstub/tpm.c b/drivers/firmware/efi/libstub/tpm.c
index da661bf8cb96..2298560cea72 100644
--- a/drivers/firmware/efi/libstub/tpm.c
+++ b/drivers/firmware/efi/libstub/tpm.c
@@ -16,11 +16,8 @@
#include "efistub.h"
#ifdef CONFIG_RESET_ATTACK_MITIGATION
-static const efi_char16_t efi_MemoryOverWriteRequest_name[] = {
- 'M', 'e', 'm', 'o', 'r', 'y', 'O', 'v', 'e', 'r', 'w', 'r', 'i', 't',
- 'e', 'R', 'e', 'q', 'u', 'e', 's', 't', 'C', 'o', 'n', 't', 'r', 'o',
- 'l', 0
-};
+static const efi_char16_t efi_MemoryOverWriteRequest_name[] =
+ L"MemoryOverwriteRequestControl";
#define MEMORY_ONLY_RESET_CONTROL_GUID \
EFI_GUID(0xe20939be, 0x32d4, 0x41be, 0xa1, 0x50, 0x89, 0x7f, 0x85, 0xd4, 0x98, 0x29)