diff options
| author | Ard Biesheuvel <ardb@kernel.org> | 2020-01-22 14:40:57 +0100 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2020-02-23 21:59:42 +0100 |
| commit | 06c0bd93434c5b9b284773f90bb054aff591d5be (patch) | |
| tree | e92fb1e0a3943601561e065816450a6a5c916c6f /arch | |
| parent | efi: Make efi_config_init() x86 only (diff) | |
| download | linux-06c0bd93434c5b9b284773f90bb054aff591d5be.tar.xz linux-06c0bd93434c5b9b284773f90bb054aff591d5be.zip | |
efi: Clean up config_parse_tables()
config_parse_tables() is a jumble of pointer arithmetic, due to the
fact that on x86, we may be dealing with firmware whose native word
size differs from the kernel's.
This is not a concern on other architectures, and doesn't quite
justify the state of the code, so let's clean it up by adding a
non-x86 code path, constifying statically allocated tables and
replacing preprocessor conditionals with IS_ENABLED() checks.
Tested-by: Tony Luck <tony.luck@intel.com> # arch/ia64
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ia64/kernel/efi.c | 3 | ||||
| -rw-r--r-- | arch/x86/platform/efi/efi.c | 6 |
2 files changed, 4 insertions, 5 deletions
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index 3b5cf551489c..f69f3fe0532e 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -56,7 +56,7 @@ unsigned long __initdata esi_phys = EFI_INVALID_TABLE_ADDR; unsigned long hcdp_phys = EFI_INVALID_TABLE_ADDR; unsigned long sal_systab_phys = EFI_INVALID_TABLE_ADDR; -static __initdata efi_config_table_type_t arch_tables[] = { +static const efi_config_table_type_t arch_tables[] __initconst = { {ESI_TABLE_GUID, "ESI", &esi_phys}, {HCDP_TABLE_GUID, "HCDP", &hcdp_phys}, {MPS_TABLE_GUID, "MPS", &mps_phys}, @@ -533,7 +533,6 @@ efi_init (void) if (efi_config_parse_tables(__va(efi_systab->tables), efi_systab->nr_tables, - sizeof(efi_config_table_t), arch_tables) != 0) return; diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index f1033f7f9e39..47367f4d82d0 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -60,7 +60,7 @@ static u64 efi_systab_phys __initdata; static unsigned long prop_phys = EFI_INVALID_TABLE_ADDR; static unsigned long uga_phys = EFI_INVALID_TABLE_ADDR; -static efi_config_table_type_t arch_tables[] __initdata = { +static const efi_config_table_type_t arch_tables[] __initconst = { {EFI_PROPERTIES_TABLE_GUID, "PROP", &prop_phys}, {UGA_IO_PROTOCOL_GUID, "UGA", &uga_phys}, #ifdef CONFIG_X86_UV @@ -431,7 +431,7 @@ static int __init efi_systab_init(u64 phys) return 0; } -static int __init efi_config_init(efi_config_table_type_t *arch_tables) +static int __init efi_config_init(const efi_config_table_type_t *arch_tables) { void *config_tables; int sz, ret; @@ -454,7 +454,7 @@ static int __init efi_config_init(efi_config_table_type_t *arch_tables) return -ENOMEM; } - ret = efi_config_parse_tables(config_tables, efi.systab->nr_tables, sz, + ret = efi_config_parse_tables(config_tables, efi.systab->nr_tables, arch_tables); early_memunmap(config_tables, efi.systab->nr_tables * sz); |