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Sat, 28 Feb 2026 03:48:25 -0800 (PST) Received: from localhost ([196.207.164.177]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-483bd765604sm241547315e9.15.2026.02.28.03.48.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Feb 2026 03:48:24 -0800 (PST) Date: Sat, 28 Feb 2026 14:48:21 +0300 From: Dan Carpenter To: Pasha Tatashin Cc: Pratyush Yadav , kernel-janitors@vger.kernel.org Subject: [bug report] tests/liveupdate: add in-kernel liveupdate test Message-ID: Precedence: bulk X-Mailing-List: kernel-janitors@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline [ Smatch checking is paused while we raise funding. #SadFace https://lore.kernel.org/all/aTaiGSbWZ9DJaGo7@stanley.mountain/ -dan ] Hello Pasha Tatashin, Commit f653ff7af969 ("tests/liveupdate: add in-kernel liveupdate test") from Dec 18, 2025 (linux-next), leads to the following Smatch static checker warning: lib/tests/liveupdate.c:130 liveupdate_test_register() warn: passing zero to 'ERR_PTR' lib/tests/liveupdate.c 112 void liveupdate_test_register(struct liveupdate_file_handler *fh) 113 { 114 int err, i; 115 116 liveupdate_test_init(); 117 118 for (i = 0; i < TEST_NFLBS; i++) { 119 struct liveupdate_flb *flb = &test_flbs[i]; 120 121 err = liveupdate_register_flb(fh, flb); 122 if (err) { 123 pr_err("Failed to register %s %pe\n", 124 flb->compatible, ERR_PTR(err)); 125 } 126 } 127 128 err = liveupdate_register_flb(fh, &test_flbs[0]); 129 if (!err || err != -EEXIST) { ^^ || vs && bug. This error messages will always be printed. --> 130 pr_err("Failed: %s should be already registered, but got err: %pe\n", 131 test_flbs[0].compatible, ERR_PTR(err)); 132 } 133 134 pr_info("Registered %d FLBs with file handler: [%s]\n", 135 TEST_NFLBS, fh->compatible); 136 } regards, dan carpenter