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 dw@davidwei.uk Signed-off-by: Guenter Roeck linux@roeck-us.net --- 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);