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Daniel Borkmann f267f26281 xdp, bonding: Fix feature flags when there are no slave devs anymore 
Commit 9b0ed890ac ("bonding: do not report NETDEV_XDP_ACT_XSK_ZEROCOPY")
changed the driver from reporting everything as supported before a device
was bonded into having the driver report that no XDP feature is supported
until a real device is bonded as it seems to be more truthful given
eventually real underlying devices decide what XDP features are supported.

The change however did not take into account when all slave devices get
removed from the bond device. In this case after 9b0ed890ac, the driver
keeps reporting a feature mask of 0x77, that is, NETDEV_XDP_ACT_MASK &
~NETDEV_XDP_ACT_XSK_ZEROCOPY whereas it should have reported a feature
mask of 0.

Fix it by resetting XDP feature flags in the same way as if no XDP program
is attached to the bond device. This was uncovered by the XDP bond selftest
which let BPF CI fail. After adjusting the starting masks on the latter
to 0 instead of NETDEV_XDP_ACT_MASK the test passes again together with
this fix.

Fixes: 9b0ed890ac ("bonding: do not report NETDEV_XDP_ACT_XSK_ZEROCOPY")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Magnus Karlsson <magnus.karlsson@intel.com>
Cc: Prashant Batra <prbatra.mail@gmail.com>
Cc: Toke Høiland-Jørgensen <toke@redhat.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Message-ID: <20240305090829.17131-1-daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-03-05 16:19:42 -08:00
arch This push fixes a regression in lskcipher and an out-of-bound 2024-02-28 09:30:26 -08:00
block block: sed-opal: handle empty atoms when parsing response 2024-02-16 15:52:45 -07:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto crypto: lskcipher - Copy IV in lskcipher glue code always 2024-02-24 08:37:24 +08:00
Documentation dt-bindings: net: renesas,ethertsn: Document default for delays 2024-03-01 08:32:33 +00:00
drivers xdp, bonding: Fix feature flags when there are no slave devs anymore 2024-03-05 16:19:42 -08:00
fs for-6.8-rc6-tag 2024-02-26 11:00:54 -08:00
include mlx5-fixes-2024-03-01 2024-03-04 21:00:28 -08:00
init update workarounds for gcc "asm goto" issue 2024-02-15 11:14:33 -08:00
io_uring io_uring/net: fix multishot accept overflow handling 2024-02-14 18:30:19 -07:00
ipc shm: Slim down dependencies 2023-12-20 19:26:31 -05:00
kernel bpf: check bpf_func_state->callback_depth when pruning states 2024-03-05 16:15:56 -08:00
lib Including fixes from bluetooth, WiFi and netfilter. 2024-02-29 12:40:20 -08:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm 6 hotfixes. 3 are cc:stable and the remainder address post-6.7 issues 2024-02-27 16:44:15 -08:00
net net/ipv6: avoid possible UAF in ip6_route_mpath_notify() 2024-03-05 11:16:11 -08:00
rust Rust changes for v6.8 2024-01-11 13:05:41 -08:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
scripts Including fixes from bpf and netfilter. 2024-02-22 09:57:58 -08:00
security Landlock fix for v6.8-rc7 2024-02-29 12:29:23 -08:00
sound ALSA: usb-audio: More relaxed check of MIDI jack names 2024-02-15 16:56:05 +01:00
tools selftests/bpf: test case for callback_depth states pruning logic 2024-03-05 16:15:56 -08:00
usr Kbuild updates for v6.8 2024-01-18 17:57:07 -08:00
virt Generic: 2024-01-17 13:03:37 -08:00
.clang-format clang-format: Update with v6.7-rc4's for_each macro list 2023-12-08 23:54:38 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.mailmap MAINTAINERS: mailmap: update Shakeel's email address 2024-02-20 14:20:50 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: supplement of zswap maintainers update 2024-01-25 23:52:21 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: net: netsec: add myself as co-maintainer 2024-03-01 10:33:20 +00:00
Makefile Linux 6.8-rc6 2024-02-25 15:46:06 -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.