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Thu, 12 Feb 2026 06:10:13 -0800 (PST) From: Jiri Olsa X-Google-Original-From: Jiri Olsa Date: Thu, 12 Feb 2026 15:10:11 +0100 To: Andrii Nakryiko Cc: Andrii Nakryiko , bpf@vger.kernel.org, linux-kernel@vger.kernel.org, Song Liu , Yonghong Song , John Fastabend Subject: Re: [PATCHv3 bpf-next 4/5] selftests/bpf: Add test for checking correct nop of optimized usdt Message-ID: References: <20260211084858.750950-1-jolsa@kernel.org> <20260211084858.750950-5-jolsa@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Wed, Feb 11, 2026 at 01:45:24PM -0800, Andrii Nakryiko wrote: SNIP > > diff --git a/tools/testing/selftests/bpf/progs/test_usdt.c b/tools/testing/selftests/bpf/progs/test_usdt.c > > index a78c87537b07..6911868cdf67 100644 > > --- a/tools/testing/selftests/bpf/progs/test_usdt.c > > +++ b/tools/testing/selftests/bpf/progs/test_usdt.c > > @@ -138,4 +138,13 @@ int usdt_sib(struct pt_regs *ctx) > > return 0; > > } > > > > +int executed; > > + > > +SEC("usdt") > > +int usdt_executed(struct pt_regs *ctx) > > +{ > > + executed++; > > did you try capturing pt_reg's ip value and validating it? ok, it's easy to add that check jirka