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Dave Thaler 20e109ea98 bpf, docs: Clarify that MOVSX is only for BPF_X not BPF_K
Per discussion on the mailing list at
https://mailarchive.ietf.org/arch/msg/bpf/uQiqhURdtxV_ZQOTgjCdm-seh74/
the MOVSX operation is only defined to support register extension.

The document didn't previously state this and incorrectly implied
that one could use an immediate value.

Signed-off-by: Dave Thaler <dthaler1968@gmail.com>
Acked-by: David Vernet <void@manifault.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20240118232954.27206-1-dthaler1968@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-01-23 15:10:08 -08:00
arch bpf: Support inlining bpf_kptr_xchg() helper 2024-01-23 14:40:21 -08:00
block
certs
crypto
Documentation bpf, docs: Clarify that MOVSX is only for BPF_X not BPF_K 2024-01-23 15:10:08 -08:00
drivers
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include bpf: Define struct bpf_tcp_req_attrs when CONFIG_SYN_COOKIES=n. 2024-01-23 15:08:03 -08:00
init
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ipc
kernel bpf: Refactor ptr alu checking rules to allow alu explicitly 2024-01-23 15:01:39 -08:00
lib
LICENSES
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net bpf: tcp: Support arbitrary SYN Cookie. 2024-01-23 14:40:24 -08:00
rust
samples
scripts
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tools selftest/bpf: Add map_in_maps with BPF_MAP_TYPE_PERF_EVENT_ARRAY values 2024-01-23 14:43:12 -08:00
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.cocciconfig
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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.