The linux-5.4.y commit 8781011a302b ("bpf: Test_progs, add test to catch retval refine error handling") fails to build when libbpf headers are not installed, as it tries to include <bpf/bpf_helpers.h>: progs/test_get_stack_rawtp_err.c:4:10: fatal error: 'bpf/bpf_helpers.h' file not found For 5.4-stable (only) the new test prog needs to include "bpf_helpers.h" instead (like all the rest of progs/*.c do) because 5.4-stable does not carry commit e01a75c15969 ("libbpf: Move bpf_{helpers, helper_defs, endian, tracing}.h into libbpf"). Signed-off-by: Kamal Mostafa <kamal@canonical.com> Fixes: 8781011a302b ("bpf: Test_progs, add test to catch retval refine error handling") Cc: <stable@vger.kernel.org> # v5.4 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.
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