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c4f109b507
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Eric Biggers c4f109b507 FROMGIT: crypto: arm/chacha20 - add XChaCha20 support 
Add an XChaCha20 implementation that is hooked up to the ARM NEON
implementation of ChaCha20.  This is needed for use in the Adiantum
encryption mode; see the generic code patch,
"crypto: chacha20-generic - add XChaCha20 support", for more details.

We also update the NEON code to support HChaCha20 on one block, so we
can use that in XChaCha20 rather than calling the generic HChaCha20.
This required factoring the permutation out into its own macro.

Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

(cherry picked from commit d97a94309d
 https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master)
Bug: 112008522
Test: As series, see Ic61c13b53facfd2173065be715a7ee5f3af8760b
Change-Id: I84c3a019e22598f8f8eb25e7a0fefbc79c9660c9
Signed-off-by: Eric Biggers <ebiggers@google.com>
2018-12-05 09:48:15 -08:00
arch FROMGIT: crypto: arm/chacha20 - add XChaCha20 support 2018-12-05 09:48:15 -08:00
block block: Clear kernel memory before copying to user 2018-11-27 16:13:05 +01:00
certs export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR() 2018-08-22 23:21:44 +09:00
crypto FROMGIT: crypto: chacha - add XChaCha12 support 2018-12-05 09:48:14 -08:00
Documentation ANDROID: security,perf: Allow further restriction of perf_event_open 2018-12-05 09:48:13 -08:00
drivers BACKPORT, FROMGIT: crypto: chacha20-generic - refactor to allow varying number of rounds 2018-12-05 09:48:14 -08:00
firmware kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
fs ANDROID: sdcardfs: Add sdcardfs filesystem 2018-12-05 09:48:14 -08:00
include FROMGIT: crypto: chacha - add XChaCha12 support 2018-12-05 09:48:14 -08:00
init ANDROID: sched: fair/tune: Add schedtune with cgroups interface 2018-10-26 11:57:46 +01:00
ipc ANDROID: vfs: Add permission2 for filesystems with per mount permissions 2018-12-05 09:48:14 -08:00
kernel ANDROID: security,perf: Allow further restriction of perf_event_open 2018-12-05 09:48:13 -08:00
lib FROMGIT: crypto: chacha - add XChaCha12 support 2018-12-05 09:48:14 -08:00
LICENSES LICENSES: Remove CC-BY-SA-4.0 license text 2018-10-18 11:28:50 +02:00
mm ANDROID: add extra free kbytes tunable 2018-12-05 09:48:12 -08:00
net ANDROID: net: ipv6: autoconf routes into per-device tables 2018-12-05 09:48:13 -08:00
samples samples: disable CONFIG_SAMPLES for UML 2018-10-11 02:15:46 +09:00
scripts ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple 2018-12-05 09:47:58 -08:00
security ANDROID: vfs: Add permission2 for filesystems with per mount permissions 2018-12-05 09:48:14 -08:00
sound ALSA: hda/ca0132 - Call pci_iounmap() instead of iounmap() 2018-11-27 16:13:09 +01:00
tools perf tools: Do not zero sample_id_all for group members 2018-11-27 16:13:06 +01:00
usr initramfs: move gen_initramfs_list.sh from scripts/ to usr/ 2018-08-22 23:21:44 +09:00
virt KVM: arm64: Fix caching of host MDCR_EL2 value 2018-11-13 11:08:47 -08:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
build.config.cuttlefish.aarch64 ANDROID: defconfig / build config for cuttlefish 2018-12-05 09:47:58 -08:00
build.config.cuttlefish.x86_64 ANDROID: defconfig / build config for cuttlefish 2018-12-05 09:47:58 -08:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS MAINTAINERS: Add an entry for the code of conduct 2018-10-22 07:33:36 +01:00
Makefile ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple 2018-12-05 09:47:58 -08:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.