[arm64] Enable pstore, efi-pstore, etc. (Closes: #773309)

Enable PSTORE as built-in and EFI_VARS_PSTORE as module.

Auto-load efivars and efi-pstore:
- Replace features/all/efi-autoload-efivars.patch with the version
  that was committed upstream, which is not x86-specific.
- Add a separate patch to make efi-pstore auto-load, as this was not
  included in the upstream commit.

svn path=/dists/sid/linux/; revision=22227

debian/changelog

@@ -6,6 +6,8 @@ linux (3.16.7-ckt2-2) UNRELEASED; urgency=medium
     debian/bin/{abiupdate,buildcheck,gencontrol}.py (Closes: #773233)
   * iov: Revert unwanted ABI 'fix' in 3.16.7-ckt2-1
   * Ignore ABI changes in mm, of functions not really used by modules
+  * [arm64] Enable PSTORE as built-in and EFI_VARS_PSTORE as module;
+    ensure efivars and efi-pstore are loaded on EFI systems (Closes: #773309)
 
   [ Ian Campbell ]
   * [armhf] Enable support for support OMAP5432 uEVM by enabling:

debian/config/arm64/config

@@ -126,3 +126,8 @@ CONFIG_USB_OHCI_HCD_PLATFORM=m
 ##
 CONFIG_VIRTIO_MMIO=m
 
+##
+## file: fs/pstore/Kconfig
+##
+CONFIG_PSTORE=y
+

debian/patches/features/all/efi-autoload-efi-pstore.patch

@@ -0,0 +1,16 @@
+From: Ben Hutchings <ben@decadent.org.uk>
+Subject: x86/efi: Autoload efi-pstore
+Date: Wed, 24 Dec 2014 17:44:06 +0100
+Bug-Debian: https://bugs.debian.org/703363
+Bug-Debian: https://bugs.debian.org/773309
+Forwarded: no
+
+efi-pstore should be auto-loaded on EFI systems, same as efivars.
+
+--- a/drivers/firmware/efi/efi-pstore.c
++++ b/drivers/firmware/efi/efi-pstore.c
+@@ -400,3 +400,4 @@ module_exit(efivars_pstore_exit);
+ 
+ MODULE_DESCRIPTION("EFI variable backend for pstore");
+ MODULE_LICENSE("GPL");
++MODULE_ALIAS("platform:efivars");

debian/patches/features/all/efi-autoload-efivars.patch

@@ -1,32 +1,44 @@
-From: Ben Hutchings <ben@decadent.org.uk>
+From: "Lee, Chun-Yi" <joeyli.kernel@gmail.com>
-Subject: x86/efi: Autoload efivars
+Date: Wed, 9 Jul 2014 18:39:29 +0800
-Date: Mon, 18 Mar 2013 22:59:14 +0000
+Subject: efi: Autoload efivars
 Bug-Debian: https://bugs.debian.org/703363
-Forwarded: no
+Origin: https://git.kernel.org/linus/28d54022e6ff9c16bf4dacb5f64a97443a38caa9
+
+The original patch is from Ben Hutchings's contribution to debian
+kernel. Got Ben's permission to remove the code of efi-pstore.c and
+send to linux-efi:
+https://github.com/BlankOn/linux-debian/blob/master/debian/patches/features/all/efi-autoload-efivars.patch
 
 efivars is generally useful to have on EFI systems, and in some cases
 it may be impossible to load it after a kernel upgrade in order to
-complete a boot loader update.  efi-pstore is similarly useful though
+complete a boot loader update. At the same time we don't want to waste
-less critical.  At the same time we don't want to waste memory on
+memory on non-EFI systems by making them built-in.
-non-EFI systems by making them built-in.
 
 Instead, give them module aliases as if they are platform drivers, and
 register a corresponding platform device whenever EFI runtime services
 are available.  This should trigger udev to load them.
 
+Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
+Cc: Ben Hutchings <ben@decadent.org.uk>
+Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
+Signed-off-by: Matt Fleming <matt.fleming@intel.com>
 ---
---- a/arch/x86/platform/efi/efi.c
+ drivers/firmware/efi/efi.c     | 15 +++++++++++++++
-+++ b/arch/x86/platform/efi/efi.c
+ drivers/firmware/efi/efivars.c |  1 +
-@@ -42,6 +42,7 @@
+ 2 files changed, 16 insertions(+)
+
+--- a/drivers/firmware/efi/efi.c
++++ b/drivers/firmware/efi/efi.c
+@@ -23,6 +23,7 @@
+ #include <linux/of.h>
+ #include <linux/of_fdt.h>
  #include <linux/io.h>
- #include <linux/reboot.h>
- #include <linux/bcd.h>
 +#include <linux/platform_device.h>
  
- #include <asm/setup.h>
+ struct efi __read_mostly efi = {
- #include <asm/efi.h>
+ 	.mps        = EFI_INVALID_TABLE_ADDR,
-@@ -783,6 +784,20 @@ void __init efi_late_init(void)
+@@ -321,6 +322,20 @@ int __init efi_config_init(efi_config_ta
- 	efi_bgrt_init();
+ 	return 0;
  }
  
 +#ifdef CONFIG_EFI_VARS_MODULE
@@ -43,12 +55,12 @@ are available.  This should trigger udev to load them.
 +device_initcall(efi_load_efivars);
 +#endif
 +
- void __init efi_set_executable(efi_memory_desc_t *md, bool executable)
+ #ifdef CONFIG_EFI_PARAMS_FROM_FDT
- {
+ 
- 	u64 addr, npages;
+ #define UEFI_PARAM(name, prop, field)			   \
 --- a/drivers/firmware/efi/efivars.c
 +++ b/drivers/firmware/efi/efivars.c
-@@ -77,6 +77,7 @@ MODULE_AUTHOR("Matt Domsch <Matt_Domsch@
+@@ -78,6 +78,7 @@ MODULE_AUTHOR("Matt Domsch <Matt_Domsch@
  MODULE_DESCRIPTION("sysfs interface to EFI Variables");
  MODULE_LICENSE("GPL");
  MODULE_VERSION(EFIVARS_VERSION);
@@ -56,10 +68,3 @@ are available.  This should trigger udev to load them.
  
  LIST_HEAD(efivar_sysfs_list);
  EXPORT_SYMBOL_GPL(efivar_sysfs_list);
---- a/drivers/firmware/efi/efi-pstore.c
-+++ b/drivers/firmware/efi/efi-pstore.c
-@@ -250,3 +250,4 @@ module_exit(efivars_pstore_exit);
- 
- MODULE_DESCRIPTION("EFI variable backend for pstore");
- MODULE_LICENSE("GPL");
-+MODULE_ALIAS("platform:efivars");

debian/patches/series

@@ -176,6 +176,7 @@ features/all/kdbus/powerpc-Wire-up-sys_seccomp-sys_getrandom-and-sys_me.patch
 
 # Miscellaneous features
 features/all/efi-autoload-efivars.patch
+features/all/efi-autoload-efi-pstore.patch
 features/all/virtio-scsi-Implement-change_queue_depth-for-virtscs.patch
 debian/revert-staging-sm7xxfb-remove-driver.patch
 features/all/sfc-Adding-PCI-ID-for-Solarflare-7000-series-40G-net.patch