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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Delyan Kratunov <delyank@fb.com>,
	Randy Dunlap <rdunlap@infradead.org>,
	Alexei Starovoitov <ast@kernel.org>,
	Sasha Levin <sashal@kernel.org>,
	rostedt@goodmis.org, mingo@redhat.com, bpf@vger.kernel.org
Subject: [PATCH AUTOSEL 5.18 36/93] uprobe: gate bpf call behind BPF_EVENTS
Date: Thu, 11 Aug 2022 11:41:30 -0400	[thread overview]
Message-ID: <20220811154237.1531313-36-sashal@kernel.org> (raw)
In-Reply-To: <20220811154237.1531313-1-sashal@kernel.org>

From: Delyan Kratunov <delyank@fb.com>

[ Upstream commit aca80dd95e20f1fa0daa212afc83c9fa0ad239e5 ]

The call into bpf from uprobes needs to be gated now that it doesn't use
the trace_events.h helpers.

Randy found this as a randconfig build failure on linux-next [1].

  [1]: https://lore.kernel.org/linux-next/2de99180-7d55-2fdf-134d-33198c27cc58@infradead.org/

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Delyan Kratunov <delyank@fb.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/cb8bfbbcde87ed5d811227a393ef4925f2aadb7b.camel@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/trace_uprobe.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 9711589273cd..c3937c935239 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -1343,6 +1343,7 @@ static void __uprobe_perf_func(struct trace_uprobe *tu,
 	int size, esize;
 	int rctx;
 
+#ifdef CONFIG_BPF_EVENTS
 	if (bpf_prog_array_valid(call)) {
 		u32 ret;
 
@@ -1352,6 +1353,7 @@ static void __uprobe_perf_func(struct trace_uprobe *tu,
 		if (!ret)
 			return;
 	}
+#endif /* CONFIG_BPF_EVENTS */
 
 	esize = SIZEOF_TRACE_ENTRY(is_ret_probe(tu));
 
-- 
2.35.1


  parent reply	other threads:[~2022-08-11 15:57 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20220811154237.1531313-1-sashal@kernel.org>
2022-08-11 15:41 ` [PATCH AUTOSEL 5.18 10/93] bpf, sockmap: Fix sk->sk_forward_alloc warn_on in sk_stream_kill_queues Sasha Levin
2022-08-11 15:41 ` [PATCH AUTOSEL 5.18 14/93] libbpf: Fix an error in 64bit relocation value computation Sasha Levin
2022-08-11 15:41 ` [PATCH AUTOSEL 5.18 23/93] selftests/bpf: Avoid skipping certain subtests Sasha Levin
2022-08-11 15:41 ` Sasha Levin [this message]
2022-08-11 15:41 ` [PATCH AUTOSEL 5.18 48/93] libbpf: fix up few libbpf.map problems Sasha Levin
2022-08-11 15:41 ` [PATCH AUTOSEL 5.18 60/93] libbpf: Disable SEC pragma macro on GCC Sasha Levin
2022-08-11 15:41 ` [PATCH AUTOSEL 5.18 61/93] bpf: Make non-preallocated allocation low priority Sasha Levin
2022-08-11 15:41 ` [PATCH AUTOSEL 5.18 65/93] bpf: Fix check against plain integer v 'NULL' Sasha Levin
2022-08-11 15:42 ` [PATCH AUTOSEL 5.18 69/93] bpf: Don't redirect packets with invalid pkt_len Sasha Levin
2022-08-11 15:42 ` [PATCH AUTOSEL 5.18 81/93] bpf/selftests: Fix couldn't retrieve pinned program in xdp veth test Sasha Levin

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