efi: Get rid of the EFI_SYSTEM_TABLES status bit

The EFI_SYSTEM_TABLES status bit is set by all EFI supporting architectures
upon discovery of the EFI system table, but the bit is never tested in any
code we have in the tree. So remove it.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Luck, Tony <tony.luck@intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1461614832-17633-2-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index 300dac3702f11a13460d1954843bfcbd1ddc2034..bf0865cd438a4a25b2c516274ffed969a1dc64b3 100644 (file)
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -531,8 +531,6 @@ efi_init (void)
               efi.systab->hdr.revision >> 16,
               efi.systab->hdr.revision & 0xffff, vendor);
 
-       set_bit(EFI_SYSTEM_TABLES, &efi.flags);
-
        palo_phys      = EFI_INVALID_TABLE_ADDR;
 
        if (efi_config_init(arch_tables) != 0)

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 994a7df84a7bc713aa4913f04fc7c85992840183..df393eab0e509bd63da08b1da6a3ec8f435b91a8 100644 (file)
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -352,8 +352,6 @@ static int __init efi_systab_init(void *phys)
                       efi.systab->hdr.revision >> 16,
                       efi.systab->hdr.revision & 0xffff);
 
-       set_bit(EFI_SYSTEM_TABLES, &efi.flags);
-
        return 0;
 }
 

diff --git a/drivers/firmware/efi/arm-runtime.c b/drivers/firmware/efi/arm-runtime.c
index 6ae21e41a429402d132d8d5be215d5adde64d08c..16c7d2a711566df27cf2216685376240ec4f2d3c 100644 (file)
--- a/drivers/firmware/efi/arm-runtime.c
+++ b/drivers/firmware/efi/arm-runtime.c
@@ -105,7 +105,6 @@ static int __init arm_enable_runtime_services(void)
                pr_err("Failed to remap EFI System Table\n");
                return -ENOMEM;
        }
-       set_bit(EFI_SYSTEM_TABLES, &efi.flags);
 
        if (!efi_virtmap_init()) {
                pr_err("No UEFI virtual mapping was installed -- runtime services will not be available\n");

diff --git a/include/linux/efi.h b/include/linux/efi.h
index 1626474567ac503d26802fcefbd9f147605e4449..1545098b056530b5dfd64bc11a48f880a10d8c4f 100644 (file)
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1000,7 +1000,6 @@ extern int __init efi_setup_pcdp_console(char *);
  * possible, remove EFI-related code altogether.
  */
 #define EFI_BOOT               0       /* Were we booted from EFI? */
-#define EFI_SYSTEM_TABLES      1       /* Can we use EFI system tables? */
 #define EFI_CONFIG_TABLES      2       /* Can we use EFI config tables? */
 #define EFI_RUNTIME_SERVICES   3       /* Can we use runtime services? */
 #define EFI_MEMMAP             4       /* Can we use EFI memory map? */