From: Matthew Garrett <matthew.garrett@nebula.com>
Date: Fri, 29 Nov 2013 19:44:43 +0000 (-0500)
Subject: x86, efi: Don't use (U)EFI time services on 32 bit
X-Git-Tag: v3.13-rc4~4^2
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=04bf9ba720fcc4fa313fa122b799ae0989b6cd50;p=~emulex%2Finfiniband.git

x86, efi: Don't use (U)EFI time services on 32 bit

UEFI time services are often broken once we're in virtual mode. We were
already refusing to use them on 64-bit systems, but it turns out that
they're also broken on some 32-bit firmware, including the Dell Venue.
Disable them for now, we can revisit once we have the 1:1 mappings code
incorporated.

Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Link: http://lkml.kernel.org/r/1385754283-2464-1-git-send-email-matthew.garrett@nebula.com
Cc: <stable@vger.kernel.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 92c02344a06..cceb813044e 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -690,13 +690,6 @@ void __init efi_init(void)
 
 	set_bit(EFI_MEMMAP, &x86_efi_facility);
 
-#ifdef CONFIG_X86_32
-	if (efi_is_native()) {
-		x86_platform.get_wallclock = efi_get_time;
-		x86_platform.set_wallclock = efi_set_rtc_mmss;
-	}
-#endif
-
 #if EFI_DEBUG
 	print_efi_memmap();
 #endif