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Christophe Leroy 85682a7e3b powerpc: fix csum_ipv6_magic() on little endian platforms
On little endian platforms, csum_ipv6_magic() keeps len and proto in
CPU byte order. This generates a bad results leading to ICMPv6 packets
from other hosts being dropped by powerpc64le platforms.

In order to fix this, len and proto should be converted to network
byte order ie bigendian byte order. However checksumming 0x12345678
and 0x56341278 provide the exact same result so it is enough to
rotate the sum of len and proto by 1 byte.

PPC32 only support bigendian so the fix is needed for PPC64 only

Fixes: e9c4943a10 ("powerpc: Implement csum_ipv6_magic in assembly")
Reported-by: Jianlin Shi <jishi@redhat.com>
Reported-by: Xin Long <lucien.xin@gmail.com>
Cc: <stable@vger.kernel.org> # 4.18+
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Tested-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-09-20 21:12:28 +10:00
arch powerpc: fix csum_ipv6_magic() on little endian platforms 2018-09-20 21:12:28 +10:00
block block: bfq: swap puts in bfqg_and_blkg_put 2018-09-06 11:32:58 -06:00
certs
crypto
Documentation Fix things so the choice of whether or not to trust RDRAND to 2018-09-09 05:54:05 -07:00
drivers Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-09-09 06:49:29 -07:00
firmware
fs afs: Fix cell specification to permit an empty address list 2018-09-07 16:39:44 -07:00
include Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-09-09 06:55:27 -07:00
init
ipc ipc/shm: properly return EIDRM in shm_lock() 2018-09-04 16:45:02 -07:00
kernel Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-09-09 06:55:27 -07:00
lib lib/Kconfig.debug: fix three typos in help text 2018-09-04 16:45:02 -07:00
LICENSES
mm for-linus-20180906 2018-09-06 14:01:15 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-09-04 12:45:11 -07:00
samples
scripts Kbuild fixes for v4.19 2018-09-09 05:42:11 -07:00
security - Fix for bad debug check when converting secids to secctx 2018-09-06 09:42:14 -07:00
sound ALSA: hda: Fix several mismatch for register mask and value 2018-09-03 23:47:40 +02:00
tools KVM fixes for 4.19-rc3 2018-09-08 15:52:45 -07:00
usr
virt KVM: Remove obsolete kvm_unmap_hva notifier backend 2018-09-07 15:06:02 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
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.gitignore
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MAINTAINERS i2c: xiic: Record xilinx i2c with Zynq fragment 2018-09-07 13:04:45 +02:00
Makefile Linux 4.19-rc3 2018-09-09 17:26:43 -07:00
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.