From: Jiri Olsa <olsajiri@gmail.com> To: Daniel Xu <dxu@dxuuu.xyz> Cc: linux-input@vger.kernel.org, coreteam@netfilter.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, netfilter-devel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-trace-kernel@vger.kernel.org, fsverity@lists.linux.dev, bpf@vger.kernel.org, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, cgroups@vger.kernel.org, alexei.starovoitov@gmail.com, olsajiri@gmail.com, quentin@isovalent.com, alan.maguire@oracle.com, memxor@gmail.com Subject: Re: [PATCH bpf-next v3 0/3] Annotate kfuncs in .BTF_ids section Date: Fri, 12 Jan 2024 17:20:39 +0100 [thread overview] Message-ID: <ZaFm13GyXUukcnkm@krava> (raw) In-Reply-To: <cover.1704565248.git.dxu@dxuuu.xyz> On Sat, Jan 06, 2024 at 11:24:07AM -0700, Daniel Xu wrote: > === Description === > > This is a bpf-treewide change that annotates all kfuncs as such inside > .BTF_ids. This annotation eventually allows us to automatically generate > kfunc prototypes from bpftool. > > We store this metadata inside a yet-unused flags field inside struct > btf_id_set8 (thanks Kumar!). pahole will be taught where to look. > > More details about the full chain of events are available in commit 3's > description. > > The accompanying pahole changes (still needs some cleanup) can be viewed > here on this "frozen" branch [0]. so the plan is to have bpftool support to generate header file with detected kfuncs? jirka > > [0]: https://github.com/danobi/pahole/tree/kfunc_btf-mailed > > === Changelog === > > Changes from v2: > * Only WARN() for vmlinux kfuncs > > Changes from v1: > * Move WARN_ON() up a call level > * Also return error when kfunc set is not properly tagged > * Use BTF_KFUNCS_START/END instead of flags > * Rename BTF_SET8_KFUNC to BTF_SET8_KFUNCS > > Daniel Xu (3): > bpf: btf: Support flags for BTF_SET8 sets > bpf: btf: Add BTF_KFUNCS_START/END macro pair > bpf: treewide: Annotate BPF kfuncs in BTF > > drivers/hid/bpf/hid_bpf_dispatch.c | 8 +++---- > fs/verity/measure.c | 4 ++-- > include/linux/btf_ids.h | 21 +++++++++++++++---- > kernel/bpf/btf.c | 8 +++++++ > kernel/bpf/cpumask.c | 4 ++-- > kernel/bpf/helpers.c | 8 +++---- > kernel/bpf/map_iter.c | 4 ++-- > kernel/cgroup/rstat.c | 4 ++-- > kernel/trace/bpf_trace.c | 8 +++---- > net/bpf/test_run.c | 8 +++---- > net/core/filter.c | 16 +++++++------- > net/core/xdp.c | 4 ++-- > net/ipv4/bpf_tcp_ca.c | 4 ++-- > net/ipv4/fou_bpf.c | 4 ++-- > net/ipv4/tcp_bbr.c | 4 ++-- > net/ipv4/tcp_cubic.c | 4 ++-- > net/ipv4/tcp_dctcp.c | 4 ++-- > net/netfilter/nf_conntrack_bpf.c | 4 ++-- > net/netfilter/nf_nat_bpf.c | 4 ++-- > net/xfrm/xfrm_interface_bpf.c | 4 ++-- > net/xfrm/xfrm_state_bpf.c | 4 ++-- > .../selftests/bpf/bpf_testmod/bpf_testmod.c | 8 +++---- > 22 files changed, 81 insertions(+), 60 deletions(-) > > -- > 2.42.1 >
WARNING: multiple messages have this Message-ID (diff)
From: Jiri Olsa <olsajiri@gmail.com> To: Daniel Xu <dxu@dxuuu.xyz> Cc: linux-input@vger.kernel.org, coreteam@netfilter.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, netfilter-devel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-trace-kernel@vger.kernel.org, fsverity@lists.linux.dev, bpf@vger.kernel.org, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, cgroups@vger.kernel.org, alexei.starovoitov@gmail.com, olsajiri@gmail.com, quentin@isovalent.com, alan.maguire@oracle.com, memxor@gmail.com Subject: Re: [PATCH bpf-next v3 0/3] Annotate kfuncs in .BTF_ids section Date: Fri, 12 Jan 2024 17:20:39 +0100 [thread overview] Message-ID: <ZaFm13GyXUukcnkm@krava> (raw) In-Reply-To: <cover.1704565248.git.dxu@dxuuu.xyz> On Sat, Jan 06, 2024 at 11:24:07AM -0700, Daniel Xu wrote: > === Description === > > This is a bpf-treewide change that annotates all kfuncs as such inside > .BTF_ids. This annotation eventually allows us to automatically generate > kfunc prototypes from bpftool. > > We store this metadata inside a yet-unused flags field inside struct > btf_id_set8 (thanks Kumar!). pahole will be taught where to look. > > More details about the full chain of events are available in commit 3's > description. > > The accompanying pahole changes (still needs some cleanup) can be viewed > here on this "frozen" branch [0]. so the plan is to have bpftool support to generate header file with detected kfuncs? jirka > > [0]: https://github.com/danobi/pahole/tree/kfunc_btf-mailed > > === Changelog === > > Changes from v2: > * Only WARN() for vmlinux kfuncs > > Changes from v1: > * Move WARN_ON() up a call level > * Also return error when kfunc set is not properly tagged > * Use BTF_KFUNCS_START/END instead of flags > * Rename BTF_SET8_KFUNC to BTF_SET8_KFUNCS > > Daniel Xu (3): > bpf: btf: Support flags for BTF_SET8 sets > bpf: btf: Add BTF_KFUNCS_START/END macro pair > bpf: treewide: Annotate BPF kfuncs in BTF > > drivers/hid/bpf/hid_bpf_dispatch.c | 8 +++---- > fs/verity/measure.c | 4 ++-- > include/linux/btf_ids.h | 21 +++++++++++++++---- > kernel/bpf/btf.c | 8 +++++++ > kernel/bpf/cpumask.c | 4 ++-- > kernel/bpf/helpers.c | 8 +++---- > kernel/bpf/map_iter.c | 4 ++-- > kernel/cgroup/rstat.c | 4 ++-- > kernel/trace/bpf_trace.c | 8 +++---- > net/bpf/test_run.c | 8 +++---- > net/core/filter.c | 16 +++++++------- > net/core/xdp.c | 4 ++-- > net/ipv4/bpf_tcp_ca.c | 4 ++-- > net/ipv4/fou_bpf.c | 4 ++-- > net/ipv4/tcp_bbr.c | 4 ++-- > net/ipv4/tcp_cubic.c | 4 ++-- > net/ipv4/tcp_dctcp.c | 4 ++-- > net/netfilter/nf_conntrack_bpf.c | 4 ++-- > net/netfilter/nf_nat_bpf.c | 4 ++-- > net/xfrm/xfrm_interface_bpf.c | 4 ++-- > net/xfrm/xfrm_state_bpf.c | 4 ++-- > .../selftests/bpf/bpf_testmod/bpf_testmod.c | 8 +++---- > 22 files changed, 81 insertions(+), 60 deletions(-) > > -- > 2.42.1 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-01-12 16:20 UTC|newest] Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-01-06 18:24 [PATCH bpf-next v3 0/3] Annotate kfuncs in .BTF_ids section Daniel Xu 2024-01-06 18:24 ` Daniel Xu 2024-01-06 18:24 ` [PATCH bpf-next v3 1/3] bpf: btf: Support flags for BTF_SET8 sets Daniel Xu 2024-01-06 18:24 ` [PATCH bpf-next v3 2/3] bpf: btf: Add BTF_KFUNCS_START/END macro pair Daniel Xu 2024-01-08 9:14 ` Lorenz Bauer 2024-01-08 17:59 ` Daniel Xu 2024-01-11 1:27 ` Daniel Xu 2024-01-06 18:24 ` [PATCH bpf-next v3 3/3] bpf: treewide: Annotate BPF kfuncs in BTF Daniel Xu 2024-01-08 9:15 ` [PATCH bpf-next v3 0/3] Annotate kfuncs in .BTF_ids section Lorenz Bauer 2024-01-08 9:15 ` Lorenz Bauer 2024-01-08 17:52 ` Daniel Xu 2024-01-08 17:52 ` Daniel Xu 2024-01-12 16:20 ` Jiri Olsa [this message] 2024-01-12 16:20 ` Jiri Olsa 2024-01-12 20:03 ` Daniel Xu 2024-01-12 20:03 ` Daniel Xu 2024-01-13 13:57 ` Jiri Olsa 2024-01-13 13:57 ` Jiri Olsa 2024-01-13 16:17 ` Daniel Xu 2024-01-13 16:17 ` Daniel Xu 2024-01-13 19:49 ` Jiri Olsa 2024-01-13 19:49 ` Jiri Olsa
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=ZaFm13GyXUukcnkm@krava \ --to=olsajiri@gmail.com \ --cc=alan.maguire@oracle.com \ --cc=alexei.starovoitov@gmail.com \ --cc=bpf@vger.kernel.org \ --cc=cgroups@vger.kernel.org \ --cc=coreteam@netfilter.org \ --cc=dxu@dxuuu.xyz \ --cc=fsverity@lists.linux.dev \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-input@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-kselftest@vger.kernel.org \ --cc=linux-stm32@st-md-mailman.stormreply.com \ --cc=linux-trace-kernel@vger.kernel.org \ --cc=memxor@gmail.com \ --cc=netdev@vger.kernel.org \ --cc=netfilter-devel@vger.kernel.org \ --cc=quentin@isovalent.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.