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Wed, 23 Apr 2025 00:17:20 -0700 (PDT) Received: from localhost ([196.207.164.177]) by smtp.gmail.com with UTF8SMTPSA id ffacd0b85a97d-39efa43314fsm18163398f8f.39.2025.04.23.00.17.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Apr 2025 00:17:20 -0700 (PDT) Date: Wed, 23 Apr 2025 10:17:16 +0300 From: Dan Carpenter To: Joel Fernandes Cc: rcu@vger.kernel.org Subject: [bug report] rcutorture: Perform more frequent testing of ->gpwrap Message-ID: Precedence: bulk X-Mailing-List: rcu@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hello Joel Fernandes, Commit bd57ec707441 ("rcutorture: Perform more frequent testing of ->gpwrap") from Feb 16, 2025 (linux-next), leads to the following Smatch static checker warning: kernel/rcu/rcutorture.c:4586 rcu_torture_init() warn: missing error code 'firsterr' kernel/rcu/rcutorture.c 4576 if (torture_init_error(firsterr)) 4577 goto unwind; 4578 } 4579 if (object_debug) 4580 rcu_test_debug_objects(); 4581 torture_init_end(); 4582 if (cur_ops->gp_slow_register && !WARN_ON_ONCE(!cur_ops->gp_slow_unregister)) 4583 cur_ops->gp_slow_register(&rcu_fwd_cb_nodelay); 4584 4585 if (cur_ops->set_gpwrap_lag && rcu_gpwrap_lag_init()) --> 4586 goto unwind; set an error code? 4587 4588 return 0; 4589 4590 unwind: 4591 torture_init_end(); 4592 rcu_torture_cleanup(); 4593 if (shutdown_secs) { 4594 WARN_ON(!IS_MODULE(CONFIG_RCU_TORTURE_TEST)); 4595 kernel_power_off(); 4596 } 4597 return firsterr; 4598 } regards, dan carpenter