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Aapo Vienamo 1027898b99 thunderbolt: debugfs: Fix margin debugfs node creation condition 
commit 985cfe501b upstream.

The margin debugfs node controls the "Enable Margin Test" field of the
lane margining operations. This field selects between either low or high
voltage margin values for voltage margin test or left or right timing
margin values for timing margin test.

According to the USB4 specification, whether or not the "Enable Margin
Test" control applies, depends on the values of the "Independent
High/Low Voltage Margin" or "Independent Left/Right Timing Margin"
capability fields for voltage and timing margin tests respectively. The
pre-existing condition enabled the debugfs node also in the case where
both low/high or left/right margins are returned, which is incorrect.
This change only enables the debugfs node in question, if the specific
required capability values are met.

Signed-off-by: Aapo Vienamo <aapo.vienamo@linux.intel.com>
Fixes: d0f1e0c2a6 ("thunderbolt: Add support for receiver lane margining")
Cc: stable@vger.kernel.org
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-21 14:40:13 +02:00
arch x86/cpu: Provide default cache line size if not enumerated 2024-06-21 14:40:10 +02:00
block block: stack max_user_sectors 2024-06-12 11:39:52 +02:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto crypto: ecrdsa - Fix module auto-load on add_key 2024-06-16 13:51:03 +02:00
Documentation Revert "xsk: Document ability to redirect to any socket bound to the same umem" 2024-06-16 13:51:10 +02:00
drivers thunderbolt: debugfs: Fix margin debugfs node creation condition 2024-06-21 14:40:13 +02:00
fs jfs: xattr: fix buffer overflow for invalid xattr 2024-06-21 14:40:13 +02:00
include kcov, usb: disable interrupts in kcov_remote_start_usb_softirq 2024-06-21 14:40:11 +02:00
init printk: Fix LOG_CPU_MAX_BUF_SHIFT when BASE_SMALL is enabled 2024-06-12 11:39:35 +02:00
io_uring io_uring: fix cancellation overwriting req->flags 2024-06-21 14:40:11 +02:00
ipc sysctl changes for v6.9-rc1 2024-03-18 14:59:13 -07:00
kernel bpf: Fix a potential use-after-free in bpf_link_free() 2024-06-21 14:40:04 +02:00
lib ubsan: Restore dependency on ARCH_HAS_UBSAN 2024-06-12 11:39:38 +02:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL 2024-06-16 13:51:08 +02:00
net net: ethtool: fix the error condition in ethtool_get_phy_stats_ethtool() 2024-06-21 14:40:10 +02:00
rust rust: remove params from module macro example 2024-04-25 17:34:33 +02:00
samples samples/landlock: Fix incorrect free in populate_ruleset_net 2024-05-30 09:45:01 +02:00
scripts kconfig: fix comparison to constant symbols, 'm', 'n' 2024-06-12 11:39:54 +02:00
security landlock: Fix d_parent walk 2024-06-21 14:40:12 +02:00
sound ALSA: seq: Fix incorrect UMP type for system messages 2024-06-16 13:51:15 +02:00
tools selftests/mm: compaction_test: fix bogus test success and reduce probability of OOM-killer invocation 2024-06-21 14:40:10 +02:00
usr Kbuild updates for v6.8 2024-01-18 17:57:07 -08:00
virt KVM: Drop unused @may_block param from gfn_to_pfn_cache_invalidate_start() 2024-04-11 12:58:53 -07:00
.clang-format clang-format: Update with v6.7-rc4's for_each macro list 2023-12-08 23:54:38 +01:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-21 14:40:11 +02:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: create a list of all built DTB files 2024-02-19 18:20:39 +09:00
.mailmap 18 hotfixes, 7 of which are cc:stable. 2024-05-10 14:16:03 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING
CREDITS MAINTAINERS: Drop Gustavo Pimentel as PCI DWC Maintainer 2024-03-27 13:41:02 -05:00
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 cpufreq: amd-pstate: remove global header file 2024-06-21 14:40:00 +02:00
Makefile Linux 6.9.5 2024-06-16 13:51:16 +02:00
README README: Fix spelling 2024-03-18 03:36:32 -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 reStructuredText 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.