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[ Upstream commit92afc5329a] If CONFIG_NF_CONNTRACK=m, there are no definitions of NF_NAT_MANIP_SRC and NF_NAT_MANIP_DST in vmlinux.h, build test_bpf_nf.c failed. $ make -C tools/testing/selftests/bpf/ CLNG-BPF [test_maps] test_bpf_nf.bpf.o progs/test_bpf_nf.c:160:42: error: use of undeclared identifier 'NF_NAT_MANIP_SRC' bpf_ct_set_nat_info(ct, &saddr, sport, NF_NAT_MANIP_SRC); ^ progs/test_bpf_nf.c:163:42: error: use of undeclared identifier 'NF_NAT_MANIP_DST' bpf_ct_set_nat_info(ct, &daddr, dport, NF_NAT_MANIP_DST); ^ 2 errors generated. Copy the definitions in include/net/netfilter/nf_nat.h to test_bpf_nf.c, in order to avoid redefinitions if CONFIG_NF_CONNTRACK=y, rename them with ___local suffix. This is similar with commit1058b6a78d("selftests/bpf: Do not fail build if CONFIG_NF_CONNTRACK=m/n"). Fixes:b06b45e82b("selftests/bpf: add tests for bpf_ct_set_nat_info kfunc") Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Acked-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/r/1674028604-7113-1-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> 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.