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[ Upstream commitdda7596c10] insn_to_jit_off passed to bpf_prog_fill_jited_linfo() is calculated in instruction granularity instead of bytes granularity, but BPF line info requires byte offset. bpf_prog_fill_jited_linfo() will be the last user of ctx.offset before it is freed, so convert the offset into byte-offset before calling into bpf_prog_fill_jited_linfo() in order to fix the line info dump on arm64. Fixes:37ab566c17("bpf: arm64: Enable arm64 jit to provide bpf_line_info") Suggested-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20220226121906.5709-3-houtao1@huawei.com Signed-off-by: Sasha Levin <sashal@kernel.org>
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.