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 v7 08/24] libbpf: add map_get_fd_by_id and map_delete_elem in light skeleton
Date: Thu, 21 Jul 2022 17:36:09 +0200 [thread overview]
Message-ID: <20220721153625.1282007-9-benjamin.tissoires@redhat.com> (raw)
In-Reply-To: <20220721153625.1282007-1-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 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 bd6f4505e7b1..bc1db60ad744 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:[~2022-07-21 15:38 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-21 15:36 [PATCH bpf-next v7 00/24] Introduce eBPF support for HID devices Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 01/24] selftests/bpf: fix config for CLS_BPF Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 02/24] bpf/verifier: allow kfunc to read user provided context Benjamin Tissoires
2022-07-21 20:15 ` Kumar Kartikeya Dwivedi
2022-07-22 8:43 ` Benjamin Tissoires
2022-07-22 8:45 ` [PATCH bpf-next v8 " Benjamin Tissoires
2022-07-22 16:16 ` Alexei Starovoitov
2022-07-25 16:36 ` Benjamin Tissoires
2022-08-24 9:57 ` Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 03/24] bpf/verifier: do not clear meta in check_mem_size Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 04/24] selftests/bpf: add test for accessing ctx from syscall program type Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 05/24] bpf/verifier: allow kfunc to return an allocated mem Benjamin Tissoires
2022-07-21 21:05 ` Kumar Kartikeya Dwivedi
2022-07-21 15:36 ` [PATCH bpf-next v7 06/24] selftests/bpf: Add tests for kfunc returning a memory pointer Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 07/24] bpf: prepare for more bpf syscall to be used from kernel and user space Benjamin Tissoires
2022-07-21 15:36 ` Benjamin Tissoires [this message]
2022-07-21 15:36 ` [PATCH bpf-next v7 09/24] HID: core: store the unique system identifier in hid_device Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 10/24] HID: export hid_report_type to uapi Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 11/24] HID: convert defines of HID class requests into a proper enum Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 12/24] HID: Kconfig: split HID support and hid-core compilation Benjamin Tissoires
2022-07-28 14:14 ` Greg KH
2022-07-21 15:36 ` [PATCH bpf-next v7 13/24] HID: initial BPF implementation Benjamin Tissoires
2022-07-28 14:15 ` Greg KH
2022-08-24 9:41 ` Benjamin Tissoires
2022-07-28 14:19 ` Greg KH
2022-08-24 9:48 ` Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 14/24] selftests/bpf: add tests for the HID-bpf initial implementation Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 15/24] HID: bpf: allocate data memory for device_event BPF programs Benjamin Tissoires
2022-07-28 15:10 ` Greg KH
2022-07-21 15:36 ` [PATCH bpf-next v7 16/24] selftests/bpf/hid: add test to change the report size Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 17/24] HID: bpf: introduce hid_hw_request() Benjamin Tissoires
2022-07-28 15:10 ` Greg KH
2022-07-21 15:36 ` [PATCH bpf-next v7 18/24] selftests/bpf: add tests for bpf_hid_hw_request Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 19/24] HID: bpf: allow to change the report descriptor Benjamin Tissoires
2022-07-28 15:10 ` Greg KH
2022-07-21 15:36 ` [PATCH bpf-next v7 20/24] selftests/bpf: add report descriptor fixup tests Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 21/24] selftests/bpf: Add a test for BPF_F_INSERT_HEAD Benjamin Tissoires
2022-07-21 15:36 ` [PATCH bpf-next v7 22/24] samples/bpf: add new hid_mouse example Benjamin Tissoires
2022-07-28 15:13 ` Greg KH
2022-07-21 15:36 ` [PATCH bpf-next v7 23/24] HID: bpf: add Surface Dial example Benjamin Tissoires
2022-07-28 15:12 ` Greg KH
2022-07-21 15:36 ` [PATCH bpf-next v7 24/24] Documentation: add HID-BPF docs Benjamin Tissoires
2022-08-25 2:52 ` Bagas Sanjaya
2022-08-30 13:30 ` Benjamin Tissoires
2022-08-03 7:41 ` [PATCH bpf-next v7 00/24] Introduce eBPF support for HID devices Tero Kristo
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