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Hangbin Liu 557c223b64 selftests/bpf: No need to drop the packet when there is no geneve opt 
In bpf geneve tunnel test we set geneve option on tx side. On rx side we
only call bpf_skb_get_tunnel_opt(). Since commit 9c2e14b481 ("ip_tunnels:
Set tunnel option flag when tunnel metadata is present") geneve_rx() will
not add TUNNEL_GENEVE_OPT flag if there is no geneve option, which cause
bpf_skb_get_tunnel_opt() return ENOENT and _geneve_get_tunnel() in
test_tunnel_kern.c drop the packet.

As it should be valid that bpf_skb_get_tunnel_opt() return error when
there is not tunnel option, there is no need to drop the packet and
break all geneve rx traffic. Just set opt_class to 0 in this test and
keep returning TC_ACT_OK.

Fixes: 933a741e3b ("selftests/bpf: bpf tunnel test.")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: William Tu <u9012063@gmail.com>
Link: https://lore.kernel.org/bpf/20210224081403.1425474-1-liuhangbin@gmail.com
2021-02-24 21:28:30 +01:00
arch bpf, x86: Fix BPF_FETCH atomic and/or/xor with r0 as src 2021-02-22 18:03:11 +01:00
block for-5.12/block-2021-02-17 2021-02-21 11:02:48 -08:00
certs .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
crypto X.509: Fix crash caused by NULL pointer 2021-01-20 11:33:51 -08:00
Documentation The performance event updates for v5.12 are: 2021-02-21 12:49:32 -08:00
drivers octeontx2-af: Fix an off by one in rvu_dbg_qsize_write() 2021-02-21 13:29:25 -08:00
fs These changes fix MM (soft-)dirty bit management in the procfs code & clean up the API. 2021-02-21 12:19:56 -08:00
include bpf: Remove blank line in bpf helper description comment 2021-02-24 17:20:21 +01:00
init Scheduler updates for v5.12: 2021-02-21 12:35:04 -08:00
ipc Merge branch 'akpm' (patches from Andrew) 2020-12-15 12:53:37 -08:00
kernel bpf: Drop imprecise log message 2021-02-24 16:43:39 +01:00
lib Scheduler updates for v5.12: 2021-02-21 12:35:04 -08:00
LICENSES LICENSES: Add the CC-BY-4.0 license 2020-12-08 10:33:27 -07:00
mm These changes fix MM (soft-)dirty bit management in the procfs code & clean up the API. 2021-02-21 12:19:56 -08:00
net Highlights: 2021-02-21 10:22:20 -08:00
samples samples: bpf: Remove unneeded semicolon 2021-02-02 21:37:59 -08:00
scripts These are the v5.12 updates for the locking subsystem: 2021-02-21 12:12:01 -08:00
security cap: fix conversions on getxattr 2021-01-28 10:22:48 +01:00
sound Merge branches 'acpi-misc', 'acpi-cppc', 'acpi-docs', 'acpi-config' and 'acpi-apei' 2021-02-15 17:04:40 +01:00
tools selftests/bpf: No need to drop the packet when there is no geneve opt 2021-02-24 21:28:30 +01:00
usr arch: ia64: Remove rest of perfmon support 2021-01-22 12:12:20 +05:30
virt KVM/arm64 fixes for 5.11, take #2 2021-01-25 18:52:01 -05:00
.clang-format clang-format: Update with the latest for_each macro list 2021-01-29 15:00:23 +01:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: docs: ignore sphinx_*/ directories 2020-09-10 10:44:31 -06:00
.mailmap MAINTAINERS: update Andrey Ryabinin's email address 2021-02-09 17:26:44 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: dccp: move Gerrit Renker to CREDITS 2021-01-14 10:53:49 -08:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS These are the v5.12 updates for the locking subsystem: 2021-02-21 12:12:01 -08:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2021-02-20 17:45:32 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -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.

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.