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authorGuenter Roeck <linux@roeck-us.net>2025-12-05 09:10:07 -0800
committerJakub Kicinski <kuba@kernel.org>2025-12-10 01:11:12 -0800
commit91dc09a609d9443e6b34bdb355a18d579a95e132 (patch)
treef256628ee60a9f1eea61659361edf259fd25853a
parent59546e874403c1dd0cbc42df06fdf8c113f72022 (diff)
downloadnet-91dc09a609d9443e6b34bdb355a18d579a95e132.tar.gz
selftests: net: tfo: Fix build warning
Fix tfo.c: In function ‘run_server’: tfo.c:84:9: warning: ignoring return value of ‘read’ declared with attribute ‘warn_unused_result’ by evaluating the return value from read() and displaying an error message if it reports an error. Fixes: c65b5bb2329e3 ("selftests: net: add passive TFO test binary") Cc: David Wei <dw@davidwei.uk> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Link: https://patch.msgid.link/20251205171010.515236-14-linux@roeck-us.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--tools/testing/selftests/net/tfo.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/testing/selftests/net/tfo.c b/tools/testing/selftests/net/tfo.c
index eb3cac5e583c9d..8d82140f0f7679 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) < 0)
+ perror("read()");
fprintf(outfile, "%d\n", opt);
fclose(outfile);