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YiFei Zhu f10d059661 bpf: Make BPF_PROG_RUN_ARRAY return -err instead of allow boolean
Right now BPF_PROG_RUN_ARRAY and related macros return 1 or 0
for whether the prog array allows or rejects whatever is being
hooked. The caller of these macros then return -EPERM or continue
processing based on thw macro's return value. Unforunately this is
inflexible, since -EPERM is the only err that can be returned.

This patch should be a no-op; it prepares for the next patch. The
returning of the -EPERM is moved to inside the macros, so the outer
functions are directly returning what the macros returned if they
are non-zero.

Signed-off-by: YiFei Zhu <zhuyifei@google.com>
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/788abcdca55886d1f43274c918eaa9f792a9f33b.1639619851.git.zhuyifei@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-01-19 12:51:30 -08:00
arch Power management updates for 5.17-rc1 2022-01-10 20:34:00 -08:00
block block-5.16-2021-12-19 2021-12-19 12:38:53 -08:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto lib/crypto: blake2s: include as built-in 2022-01-07 00:25:25 +01:00
Documentation Device properties framework updates for 5.17-rc1 2022-01-10 20:48:19 -08:00
drivers Device properties framework updates for 5.17-rc1 2022-01-10 20:48:19 -08:00
fs Networking changes for 5.17. 2022-01-10 19:06:09 -08:00
include bpf: Make BPF_PROG_RUN_ARRAY return -err instead of allow boolean 2022-01-19 12:51:30 -08:00
init Power management updates for 5.17-rc1 2022-01-10 20:34:00 -08:00
ipc shm: extend forced shm destroy to support objects from several IPC nses 2021-11-20 10:35:54 -08:00
kernel bpf: Make BPF_PROG_RUN_ARRAY return -err instead of allow boolean 2022-01-19 12:51:30 -08:00
lib Networking changes for 5.17. 2022-01-10 19:06:09 -08:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm slab changes for 5.17 2022-01-10 11:58:12 -08:00
net bpf: Support bpf_(get|set)sockopt() in bpf unix iter. 2022-01-18 15:45:06 -08:00
samples samples/bpf: Stop using bpf_map__def() API 2022-01-12 17:01:38 -08:00
scripts bpf/scripts: Raise an exception if the correct number of sycalls are not generated 2022-01-19 10:24:50 -08:00
security bpf: Make BPF_PROG_RUN_ARRAY return -err instead of allow boolean 2022-01-19 12:51:30 -08:00
sound sound fixes for 5.16-rc7 2021-12-23 09:55:58 -08:00
tools libbpf: Improve btf__add_btf() with an additional hashmap for strings. 2022-01-19 10:57:27 -08:00
usr initramfs: Check timestamp to prevent broken cpio archive 2021-10-24 13:48:40 +09:00
virt KVM: downgrade two BUG_ONs to WARN_ON_ONCE 2021-11-26 06:43:28 -05:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.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: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap media updates for v5.17-rc1 2022-01-10 18:55:43 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
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 Device properties framework updates for 5.17-rc1 2022-01-10 20:48:19 -08:00
Makefile Linux 5.16 2022-01-09 14:55:34 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.