tree e2abd0f4d04594fc4204db299cb5b74be0d222f8
parent ccaf12d6215a56836472db220520cda8024d6c4f
author Hou Tao <houtao1@huawei.com> 1633340937 +0800
committer Andrii Nakryiko <andrii@kernel.org> 1633724577 -0700

bpf/selftests: Add test for writable bare tracepoint

Add a writable bare tracepoint in bpf_testmod module, and
trigger its calling when reading /sys/kernel/bpf_testmod
with a specific buffer length. The reading will return
the value in writable context if the early return flag
is enabled in writable context.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211004094857.30868-4-hotforest@gmail.com