linux-kernel - [GIT pull] efi fix for 4.19

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Message-ID: <153761963611.16056.1920566642543692525.tglx@nanos.tec.linutronix.de>
Date:   Sat, 22 Sep 2018 14:34:03 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org
Subject: [GIT pull] efi fix for 4.19

Greg,

please pull the latest efi-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git efi-urgent-for-linus

Make the EFI arm stub device tree loader default on to unbreak existing
EFI boot loaders which do not have DTB support.


Thanks,

	tglx

------------------>
Scott Branden (1):
      efi/libstub/arm: default EFI_ARMSTUB_DTB_LOADER to y


 drivers/firmware/efi/Kconfig | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig
index d8e159feb573..89110dfc7127 100644
--- a/drivers/firmware/efi/Kconfig
+++ b/drivers/firmware/efi/Kconfig
@@ -90,14 +90,17 @@ config EFI_ARMSTUB
 config EFI_ARMSTUB_DTB_LOADER
 	bool "Enable the DTB loader"
 	depends on EFI_ARMSTUB
+	default y
 	help
 	  Select this config option to add support for the dtb= command
 	  line parameter, allowing a device tree blob to be loaded into
 	  memory from the EFI System Partition by the stub.
 
-	  The device tree is typically provided by the platform or by
-	  the bootloader, so this option is mostly for development
-	  purposes only.
+	  If the device tree is provided by the platform or by
+	  the bootloader this option may not be needed.
+	  But, for various development reasons and to maintain existing
+	  functionality for bootloaders that do not have such support
+	  this option is necessary.
 
 config EFI_BOOTLOADER_CONTROL
 	tristate "EFI Bootloader Control"