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Date:	Fri, 19 Sep 2014 11:33:05 +0100
From:	Matt Fleming <>
To:	"H. Peter Anvin" <>, Ingo Molnar <>,
	Thomas Gleixner <>
	Dave Young <>
Subject: [GIT PULL] EFI urgent fix

Hi guys,

Please consider pulling the following urgent fix from Dave. It fixes an
earlyprintk=efi regression introduced in v3.16. Due to changes in the
early ACPI code we run out of early_ioremap slots when earlyprintk=efi
is specified on the command line, resulting in a hang during kernel

This patch is clearly a core x86 change, but since it is a fix for an
EFI code issue I picked it up in my urgent queue. Let me know if you'd
like to route this some other way.

The following changes since commit 0ceac9e094b065fe3fec19669740f338d3480498:

  efi/arm64: Fix fdt-related memory reservation (2014-09-09 07:51:09 +0100)

are available in the git repository at:

  git:// tags/efi-urgent

for you to fetch changes up to 3eddc69ffeba092d288c386646bfa5ec0fce25fd:

  x86 early_ioremap: Increase FIX_BTMAPS_SLOTS to 8 (2014-09-14 15:24:31 +0100)

 * Increase the number of early_ioremap slots to fix a regression with
   earlyprintk=efi after recent changes to the ACPI code - Dave Young

Dave Young (1):
      x86 early_ioremap: Increase FIX_BTMAPS_SLOTS to 8

 arch/x86/include/asm/fixmap.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Matt Fleming, Intel Open Source Technology Center
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