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[2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id s15-20020a5d510f000000b00304adbeeabbsm1856170wrt.99.2023.07.06.06.25.17 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Jul 2023 06:25:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1688649917; x=1691241917; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=eZRfw+Y+qoCHkLPcJJixub5r6MA4gHrUcY1/kPyyLV8=; b=vQL2mmkt0V9P85K07yJe+oAEm/uVBF0ilHYfXzS5msprzOnQIFCq7Kn9hKbxu5OfH0 oi5l8pZ7Z7LHb5LpgrkO6ZO2gOr9/nv+Z5k0WjnvR57isukE23F5kX4MNXvrE7XuvH6N HhIW+oxHm3Bh9pmX5givrrBG8FgnSW9DNJd1ttLC4dmYLw5N68+bpP2pSJhIPX9Rhia3 e8BNTo9KmVEanzJ4ZYIFrqpG2UE9SlkBa59Ik2nQSYfBrgXD4mYADn2gMb3vq5LP/TR2 FbxkNI0w7hCuBOOOPYy837NczgBB3r9SdLu85DHG+xln4ElxsYs8P3VCZRoG+h14QdJa ECHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688649917; x=1691241917; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=eZRfw+Y+qoCHkLPcJJixub5r6MA4gHrUcY1/kPyyLV8=; b=OdQ+pq43FbheGghqhj6+UwLJaGb5s9JAbSKpYi+VIzS07ue8d/gY9vb5q1xTWNdMeo vOVMzr2r7BFy8ZfQl7nl8HhF3B0gfbcLebz/3RV8zzOh5cLaelJV+3rVXzMge6v6Wvof ufPcHPcIiZqUog94WiVXsBtgXXPogA+kIoIk91XCfzAQIDOjyYgF/qzMagrmCFaNXHY3 gniJsjnfa9ExRdbMXEeFG7QihPW/cdCCdAodo6yQDG4N5LVqbMzCneJ3/E5AVm8dtobM bngdUqI+uQX8wsgcTO4/YLEVygxrrq2vy/sfv9Bh8dQk5b0e6G/SrCPoSSznCrvJyS2U ioWA== X-Gm-Message-State: ABy/qLY6ZN69L2opyb5oUqPitNVAP8yIrG+M4R+q93K+viIBOtfXpmfb XmvJH8P6eG2wBgqSTBc53k3HZbExMsuwu8Pcj3w= X-Google-Smtp-Source: APBJJlFHmPtmIG6av4MOGR47m1B2s6Q6ria5/WgQW4l7IypLDh9v/tdiwwPT/DGoGiL2I2UrPqpP+A== X-Received: by 2002:a1c:ed14:0:b0:3fb:4149:b816 with SMTP id l20-20020a1ced14000000b003fb4149b816mr1409609wmh.8.1688649917730; Thu, 06 Jul 2023 06:25:17 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 08/14] tests/qtest: xlnx-canfd-test: Fix code coverity issues Date: Thu, 6 Jul 2023 14:25:06 +0100 Message-Id: <20230706132512.3534397-9-peter.maydell@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230706132512.3534397-1-peter.maydell@linaro.org> References: <20230706132512.3534397-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::32f; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x32f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1688649964141100001 Content-Type: text/plain; charset="utf-8" From: Vikram Garhwal Following are done to fix the coverity issues: 1. Change read_data to fix the CID 1512899: Out-of-bounds access (OVERRUN) 2. Fix match_rx_tx_data to fix CID 1512900: Logically dead code (DEADCODE) 3. Replace rand() in generate_random_data() with g_rand_int() Signed-off-by: Vikram Garhwal Message-id: 20230628202758.16398-1-vikram.garhwal@amd.com Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- tests/qtest/xlnx-canfd-test.c | 33 +++++++++++---------------------- 1 file changed, 11 insertions(+), 22 deletions(-) diff --git a/tests/qtest/xlnx-canfd-test.c b/tests/qtest/xlnx-canfd-test.c index 76ee106d4f4..78ec9ef2a76 100644 --- a/tests/qtest/xlnx-canfd-test.c +++ b/tests/qtest/xlnx-canfd-test.c @@ -170,23 +170,23 @@ static void generate_random_data(uint32_t *buf_tx, bo= ol is_canfd_frame) /* Generate random TX data for CANFD frame. */ if (is_canfd_frame) { for (int i =3D 0; i < CANFD_FRAME_SIZE - 2; i++) { - buf_tx[2 + i] =3D rand(); + buf_tx[2 + i] =3D g_random_int(); } } else { /* Generate random TX data for CAN frame. */ for (int i =3D 0; i < CAN_FRAME_SIZE - 2; i++) { - buf_tx[2 + i] =3D rand(); + buf_tx[2 + i] =3D g_random_int(); } } } =20 -static void read_data(QTestState *qts, uint64_t can_base_addr, uint32_t *b= uf_rx) +static void read_data(QTestState *qts, uint64_t can_base_addr, uint32_t *b= uf_rx, + uint32_t frame_size) { uint32_t int_status; uint32_t fifo_status_reg_value; /* At which RX FIFO the received data is stored. */ uint8_t store_ind =3D 0; - bool is_canfd_frame =3D false; =20 /* Read the interrupt on CANFD rx. */ int_status =3D qtest_readl(qts, can_base_addr + R_ISR_OFFSET) & ISR_RX= OK; @@ -207,16 +207,9 @@ static void read_data(QTestState *qts, uint64_t can_ba= se_addr, uint32_t *buf_rx) buf_rx[0] =3D qtest_readl(qts, can_base_addr + R_RX0_ID_OFFSET); buf_rx[1] =3D qtest_readl(qts, can_base_addr + R_RX0_DLC_OFFSET); =20 - is_canfd_frame =3D (buf_rx[1] >> DLC_FD_BIT_SHIFT) & 1; - - if (is_canfd_frame) { - for (int i =3D 0; i < CANFD_FRAME_SIZE - 2; i++) { - buf_rx[i + 2] =3D qtest_readl(qts, - can_base_addr + R_RX0_DATA1_OFFSET + 4= * i); - } - } else { - buf_rx[2] =3D qtest_readl(qts, can_base_addr + R_RX0_DATA1_OFFSET); - buf_rx[3] =3D qtest_readl(qts, can_base_addr + R_RX0_DATA2_OFFSET); + for (int i =3D 0; i < frame_size - 2; i++) { + buf_rx[i + 2] =3D qtest_readl(qts, + can_base_addr + R_RX0_DATA1_OFFSET + 4 * i= ); } =20 /* Clear the RX interrupt. */ @@ -272,10 +265,6 @@ static void match_rx_tx_data(const uint32_t *buf_tx, c= onst uint32_t *buf_rx, g_assert_cmpint((buf_rx[size] & DLC_FD_BIT_MASK), =3D=3D, (buf_tx[size] & DLC_FD_BIT_MASK)); } else { - if (!is_canfd_frame && size =3D=3D 4) { - break; - } - g_assert_cmpint(buf_rx[size], =3D=3D, buf_tx[size]); } =20 @@ -318,7 +307,7 @@ static void test_can_data_transfer(void) write_data(qts, CANFD0_BASE_ADDR, buf_tx, false); =20 send_data(qts, CANFD0_BASE_ADDR); - read_data(qts, CANFD1_BASE_ADDR, buf_rx); + read_data(qts, CANFD1_BASE_ADDR, buf_rx, CAN_FRAME_SIZE); match_rx_tx_data(buf_tx, buf_rx, false); =20 qtest_quit(qts); @@ -358,7 +347,7 @@ static void test_canfd_data_transfer(void) write_data(qts, CANFD0_BASE_ADDR, buf_tx, true); =20 send_data(qts, CANFD0_BASE_ADDR); - read_data(qts, CANFD1_BASE_ADDR, buf_rx); + read_data(qts, CANFD1_BASE_ADDR, buf_rx, CANFD_FRAME_SIZE); match_rx_tx_data(buf_tx, buf_rx, true); =20 qtest_quit(qts); @@ -397,7 +386,7 @@ static void test_can_loopback(void) write_data(qts, CANFD0_BASE_ADDR, buf_tx, true); =20 send_data(qts, CANFD0_BASE_ADDR); - read_data(qts, CANFD0_BASE_ADDR, buf_rx); + read_data(qts, CANFD0_BASE_ADDR, buf_rx, CANFD_FRAME_SIZE); match_rx_tx_data(buf_tx, buf_rx, true); =20 generate_random_data(buf_tx, true); @@ -405,7 +394,7 @@ static void test_can_loopback(void) write_data(qts, CANFD1_BASE_ADDR, buf_tx, true); =20 send_data(qts, CANFD1_BASE_ADDR); - read_data(qts, CANFD1_BASE_ADDR, buf_rx); + read_data(qts, CANFD1_BASE_ADDR, buf_rx, CANFD_FRAME_SIZE); match_rx_tx_data(buf_tx, buf_rx, true); =20 qtest_quit(qts); --=20 2.34.1