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Zijian Zhang d3f5763b30 bpf, sockmap: Several fixes to bpf_msg_pop_data
[ Upstream commit 5d609ba262475db450ba69b8e8a557bd768ac07a ]

Several fixes to bpf_msg_pop_data,
1. In sk_msg_shift_left, we should put_page
2. if (len == 0), return early is better
3. pop the entire sk_msg (last == msg->sg.size) should be supported
4. Fix for the value of variable "a"
5. In sk_msg_shift_left, after shifting, i has already pointed to the next
element. Addtional sk_msg_iter_var_next may result in BUG.

Fixes: 7246d8ed4d ("bpf: helper to pop data from messages")
Signed-off-by: Zijian Zhang <zijianzhang@bytedance.com>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/20241106222520.527076-8-zijianzhang@bytedance.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-12-14 19:44:27 +01:00
arch ARM: dts: cubieboard4: Fix DCDC5 regulator constraints 2024-12-14 19:44:24 +01:00
block
certs
crypto
Documentation dt-bindings: vendor-prefixes: Add NeoFidelity, Inc 2024-12-14 19:44:25 +01:00
drivers drm/etnaviv: hold GPU lock across perfmon sampling 2024-12-14 19:44:27 +01:00
fs
include time: Fix references to _msecs_to_jiffies() handling of values 2024-12-14 19:44:23 +01:00
init
ipc
kernel time: Fix references to _msecs_to_jiffies() handling of values 2024-12-14 19:44:23 +01:00
lib
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mm
net bpf, sockmap: Several fixes to bpf_msg_pop_data 2024-12-14 19:44:27 +01:00
samples bpf: Fix the xdp_adjust_tail sample prog issue 2024-12-14 19:44:26 +01:00
scripts
security
sound ASoC: fsl_micfil: fix regmap_write_bits usage 2024-12-14 19:44:26 +01:00
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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.