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Thu, 04 Dec 2025 08:17:50 -0800 (PST) Sender: Guenter Roeck From: Guenter Roeck To: Shuah Khan Cc: Christian Brauner , Elizabeth Figura , Thomas Gleixner , Eric Dumazet , Jakub Kicinski , Kees Cook , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, wine-devel@winehq.org, netdev@vger.kernel.org, bpf@vger.kernel.org, Guenter Roeck , David Wei Subject: [PATCH 13/13] selftests: net: tfo: Fix build error seen with -Werror Date: Thu, 4 Dec 2025 08:17:27 -0800 Message-ID: <20251204161729.2448052-14-linux@roeck-us.net> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20251204161729.2448052-1-linux@roeck-us.net> References: <20251204161729.2448052-1-linux@roeck-us.net> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix tfo.c: In function ‘run_server’: tfo.c:84:9: error: ignoring return value of ‘read’ declared with attribute ‘warn_unused_result’ by evaluating and then ignoring the return value from the read() call. Fixes: c65b5bb2329e3 ("selftests: net: add passive TFO test binary") Cc: David Wei Signed-off-by: Guenter Roeck --- tools/testing/selftests/net/tfo.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/tfo.c b/tools/testing/selftests/net/tfo.c index eb3cac5e583c..0126e600a36b 100644 --- a/tools/testing/selftests/net/tfo.c +++ b/tools/testing/selftests/net/tfo.c @@ -81,7 +81,8 @@ static void run_server(void) if (getsockopt(connfd, SOL_SOCKET, SO_INCOMING_NAPI_ID, &opt, &len) < 0) error(1, errno, "getsockopt(SO_INCOMING_NAPI_ID)"); - read(connfd, buf, 64); + if (read(connfd, buf, 64)) + ; fprintf(outfile, "%d\n", opt); fclose(outfile); -- 2.43.0