netdev - [RFC PATCH bpf-next v2 2/3] tools/bpf: sync bpf uapi header bpf.h

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Date:   Thu, 2 May 2019 17:08:08 -0700
From:   Yonghong Song <yhs@...com>
To:     <bpf@...r.kernel.org>, <netdev@...r.kernel.org>
CC:     Alexei Starovoitov <ast@...com>,
        Daniel Borkmann <daniel@...earbox.net>, <kernel-team@...com>,
        Peter Zijlstra <peterz@...radead.org>,
        Yonghong Song <yhs@...com>
Subject: [RFC PATCH bpf-next v2 2/3] tools/bpf: sync bpf uapi header bpf.h

sync bpf uapi header bpf.h to tools directory.

Signed-off-by: Yonghong Song <yhs@...com>
---
 tools/include/uapi/linux/bpf.h | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 72336bac7573..e3e824848335 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -2667,6 +2667,18 @@ union bpf_attr {
  *		0 on success.
  *
  *		**-ENOENT** if the bpf-local-storage cannot be found.
+ *
+ * int bpf_send_signal(u32 pid, u32 sig)
+ *	Description
+ *		Send signal *sig* to *pid*.
+ *	Return
+ *		0 on success or successfully queued.
+ *
+ *		**-ENOENT** if *pid* cannot be found.
+ *
+ *		**-EBUSY** if work queue under nmi is full.
+ *
+ * 		Other negative values for actual signal sending errors.
  */
 #define __BPF_FUNC_MAPPER(FN)		\
 	FN(unspec),			\
@@ -2777,7 +2789,8 @@ union bpf_attr {
 	FN(strtol),			\
 	FN(strtoul),			\
 	FN(sk_storage_get),		\
-	FN(sk_storage_delete),
+	FN(sk_storage_delete),		\
+	FN(send_signal),
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
  * function eBPF program intends to call
-- 
2.17.1