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Andrii Nakryiko 59de322c49 libbpf: Fix btf__align_of() by taking into account field offsets 
[ Upstream commit 25a4481b41 ]

btf__align_of() is supposed to be return alignment requirement of
a requested BTF type. For STRUCT/UNION it doesn't always return correct
value, because it calculates alignment only based on field types. But
for packed structs this is not enough, we need to also check field
offsets and struct size. If field offset isn't aligned according to
field type's natural alignment, then struct must be packed. Similarly,
if struct size is not a multiple of struct's natural alignment, then
struct must be packed as well.

This patch fixes this issue precisely by additionally checking these
conditions.

Fixes: 3d208f4ca1 ("libbpf: Expose btf__align_of() API")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20221212211505.558851-5-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2023-03-10 09:28:02 +01:00
arch arm64: dts: qcom: pmk8350: Use the correct PON compatible 2023-03-10 09:27:57 +01:00
block block: use proper return value from bio_failfast() 2023-03-10 09:27:58 +01:00
certs certs: Fix build error when PKCS#11 URI contains semicolon 2023-01-31 17:53:01 +09:00
crypto KEYS: asymmetric: Fix ECDSA use via keyctl uapi 2023-03-10 09:27:57 +01:00
Documentation x86: 2023-02-18 11:07:32 -08:00
drivers wifi: rtlwifi: Fix global-out-of-bounds bug in _rtl8812ae_phy_set_txpower_limit() 2023-03-10 09:28:02 +01:00
fs erofs: relinquish volume with mutex held 2023-03-10 09:27:57 +01:00
include uaccess: Add speculation barrier to copy_from_user() 2023-02-25 11:13:28 +01:00
init Kbuild fixes for v6.2 (3rd) 2023-01-21 10:56:37 -08:00
io_uring io_uring,audit: don't log IORING_OP_MADVISE 2023-03-10 09:27:56 +01:00
ipc Non-MM patches for 6.2-rc1. 2022-12-12 17:28:58 -08:00
kernel sched/rt: pick_next_rt_entity(): check list_entry 2023-03-10 09:27:56 +01:00
lib sbitmap: correct wake_batch recalculation to avoid potential IO hung 2023-03-10 09:27:53 +01:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm Six hotfixes. Five are cc:stable: four for MM, one for nilfs2. Also a 2023-02-17 17:51:40 -08:00
net bpf: bpf_fib_lookup should not return neigh in NUD_FAILED state 2023-03-03 11:56:16 +01:00
rust rust: print: avoid evaluating arguments in pr_* macros in unsafe blocks 2023-01-16 00:54:35 +01:00
samples ftrace: Export ftrace_free_filter() to modules 2023-01-24 11:20:58 -05:00
scripts scripts/tags.sh: fix incompatibility with PCRE2 2023-03-03 11:56:17 +01:00
security randstruct: disable Clang 15 support 2023-02-25 11:13:30 +01:00
sound ALSA: hda: cs35l41: Correct error condition handling 2023-03-03 11:56:16 +01:00
tools libbpf: Fix btf__align_of() by taking into account field offsets 2023-03-10 09:28:02 +01:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt VFIO fixes for v6.2-rc6 2023-01-23 11:56:07 -08:00
.clang-format iommufd for 6.2 2022-12-14 09:15:43 -08:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore *.rpm 2022-12-30 17:22:14 +09:00
.mailmap 12 hotfixes, mostly against mm/. Five of these fixes are cc:stable. 2023-02-13 14:09:20 -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: update SCTP maintainers 2023-02-02 11:35:33 -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 audit: update the mailing list in MAINTAINERS 2023-02-25 11:13:29 +01:00
Makefile Linux 6.2.2 2023-03-03 11:56:18 +01:00
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.