From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
To: Greg KH <gregkh@linuxfoundation.org>,
Jiri Kosina <jikos@kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
Yonghong Song <yhs@fb.com>,
Kumar Kartikeya Dwivedi <memxor@gmail.com>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>, Shuah Khan <shuah@kernel.org>,
Dave Marchevsky <davemarchevsky@fb.com>,
Joe Stringer <joe@cilium.io>, Jonathan Corbet <corbet@lwn.net>
Cc: Tero Kristo <tero.kristo@linux.intel.com>,
linux-kernel@vger.kernel.org, linux-input@vger.kernel.org,
netdev@vger.kernel.org, bpf@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-doc@vger.kernel.org,
Benjamin Tissoires <benjamin.tissoires@redhat.com>
Subject: [PATCH bpf-next v9 07/23] libbpf: add map_get_fd_by_id and map_delete_elem in light skeleton
Date: Wed, 24 Aug 2022 15:40:37 +0200 [thread overview]
Message-ID: <20220824134055.1328882-8-benjamin.tissoires@redhat.com> (raw)
In-Reply-To: <20220824134055.1328882-1-benjamin.tissoires@redhat.com>
This allows to have a better control over maps from the kernel when
preloading eBPF programs.
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
---
no changes in v9
no changes in v8
no changes in v7
no changes in v6
new in v5
---
tools/lib/bpf/skel_internal.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/tools/lib/bpf/skel_internal.h b/tools/lib/bpf/skel_internal.h
index 00c5f94b43be..1e82ab06c3eb 100644
--- a/tools/lib/bpf/skel_internal.h
+++ b/tools/lib/bpf/skel_internal.h
@@ -251,6 +251,29 @@ static inline int skel_map_update_elem(int fd, const void *key,
return skel_sys_bpf(BPF_MAP_UPDATE_ELEM, &attr, attr_sz);
}
+static inline int skel_map_delete_elem(int fd, const void *key)
+{
+ const size_t attr_sz = offsetofend(union bpf_attr, flags);
+ union bpf_attr attr;
+
+ memset(&attr, 0, attr_sz);
+ attr.map_fd = fd;
+ attr.key = (long)key;
+
+ return skel_sys_bpf(BPF_MAP_DELETE_ELEM, &attr, attr_sz);
+}
+
+static inline int skel_map_get_fd_by_id(__u32 id)
+{
+ const size_t attr_sz = offsetofend(union bpf_attr, flags);
+ union bpf_attr attr;
+
+ memset(&attr, 0, attr_sz);
+ attr.map_id = id;
+
+ return skel_sys_bpf(BPF_MAP_GET_FD_BY_ID, &attr, attr_sz);
+}
+
static inline int skel_raw_tracepoint_open(const char *name, int prog_fd)
{
const size_t attr_sz = offsetofend(union bpf_attr, raw_tracepoint.prog_fd);
--
2.36.1
next prev parent reply other threads:[~2022-08-24 13:42 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-24 13:40 [PATCH bpf-next v9 00/23] Introduce eBPF support for HID devices Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 01/23] bpf/verifier: allow all functions to read user provided context Benjamin Tissoires
2022-08-26 1:41 ` Alexei Starovoitov
2022-08-26 1:50 ` Kumar Kartikeya Dwivedi
2022-08-30 14:29 ` Benjamin Tissoires
2022-08-31 16:37 ` Alexei Starovoitov
2022-08-31 17:56 ` Benjamin Tissoires
2022-09-01 4:15 ` Alexei Starovoitov
2022-09-01 16:47 ` Benjamin Tissoires
2022-09-02 3:50 ` Kumar Kartikeya Dwivedi
2022-09-02 13:11 ` Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 02/23] bpf/verifier: do not clear meta in check_mem_size Benjamin Tissoires
2022-08-26 1:54 ` Kumar Kartikeya Dwivedi
2022-08-30 13:51 ` Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 03/23] selftests/bpf: add test for accessing ctx from syscall program type Benjamin Tissoires
2022-08-26 2:07 ` Kumar Kartikeya Dwivedi
2022-08-24 13:40 ` [PATCH bpf-next v9 04/23] bpf/verifier: allow kfunc to return an allocated mem Benjamin Tissoires
2022-08-26 1:24 ` Kumar Kartikeya Dwivedi
2022-08-31 5:50 ` Benjamin Tissoires
2022-08-31 11:06 ` Kumar Kartikeya Dwivedi
2022-08-24 13:40 ` [PATCH bpf-next v9 05/23] selftests/bpf: Add tests for kfunc returning a memory pointer Benjamin Tissoires
2022-08-26 2:26 ` Kumar Kartikeya Dwivedi
2022-08-24 13:40 ` [PATCH bpf-next v9 06/23] bpf: prepare for more bpf syscall to be used from kernel and user space Benjamin Tissoires
2022-08-24 13:40 ` Benjamin Tissoires [this message]
2022-08-24 13:40 ` [PATCH bpf-next v9 08/23] HID: core: store the unique system identifier in hid_device Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 09/23] HID: export hid_report_type to uapi Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 10/23] HID: convert defines of HID class requests into a proper enum Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 11/23] HID: Kconfig: split HID support and hid-core compilation Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 12/23] HID: initial BPF implementation Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 13/23] selftests/bpf: add tests for the HID-bpf initial implementation Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 14/23] HID: bpf: allocate data memory for device_event BPF programs Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 15/23] selftests/bpf/hid: add test to change the report size Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 16/23] HID: bpf: introduce hid_hw_request() Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 17/23] selftests/bpf: add tests for bpf_hid_hw_request Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 18/23] HID: bpf: allow to change the report descriptor Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 19/23] selftests/bpf: add report descriptor fixup tests Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 20/23] selftests/bpf: Add a test for BPF_F_INSERT_HEAD Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 21/23] samples/bpf: add new hid_mouse example Benjamin Tissoires
2022-08-24 19:30 ` Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 21/23] samples/bpf: HID: " Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 22/23] HID: bpf: add Surface Dial example Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 22/23] samples/bpf: HID: " Benjamin Tissoires
2022-08-24 13:40 ` [PATCH bpf-next v9 23/23] Documentation: add HID-BPF docs Benjamin Tissoires
2022-08-26 2:00 ` [PATCH bpf-next v9 00/23] Introduce eBPF support for HID devices patchwork-bot+netdevbpf
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