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Andrii Nakryiko e00aca65e6 libbpf: Make DECLARE_LIBBPF_OPTS macro strictly a variable declaration
LIBBPF_OPTS is implemented as a mix of field declaration and memset
+ assignment. This makes it neither variable declaration nor purely
statements, which is a problem, because you can't mix it with either
other variable declarations nor other function statements, because C90
compiler mode emits warning on mixing all that together.

This patch changes LIBBPF_OPTS into a strictly declaration of variable
and solves this problem, as can be seen in case of bpftool, which
previously would emit compiler warning, if done this way (LIBBPF_OPTS as
part of function variables declaration block).

This patch also renames LIBBPF_OPTS into DECLARE_LIBBPF_OPTS to follow
kernel convention for similar macros more closely.

v1->v2:
- rename LIBBPF_OPTS into DECLARE_LIBBPF_OPTS (Jakub Sitnicki).

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/20191022172100.3281465-1-andriin@fb.com
2019-10-22 21:35:03 +02:00
arch bpf: Add support for BTF pointers to x86 JIT 2019-10-17 16:44:36 +02:00
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include bpf: Check types of arguments passed into helpers 2019-10-17 16:44:36 +02:00
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kernel bpf: Fix build error without CONFIG_NET 2019-10-18 20:57:07 +02:00
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net bpf: Check types of arguments passed into helpers 2019-10-17 16:44:36 +02:00
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scripts scripts/bpf: Print an error when known types list needs updating 2019-10-20 18:21:21 -07:00
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tools libbpf: Make DECLARE_LIBBPF_OPTS macro strictly a variable declaration 2019-10-22 21:35:03 +02:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
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In order to build the documentation, use ``make htmldocs`` or
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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
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the problems which may result by upgrading your kernel.