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[ Upstream commit7244eb6693] There is currently an invalid register mapping in the s390 return address register. As the manual[1] states, the return address can be found at r14. In bpf_tracing.h, the s390 registers were named gprs(general purpose registers). This commit fixes the problem by correcting the mistyped mapping. [1]: https://uclibc.org/docs/psABI-s390x.pdf#page=14 Fixes:3cc31d7940("libbpf: Normalize PT_REGS_xxx() macro definitions") Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221224071527.2292-7-danieltimlee@gmail.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.