CC: [email protected] CC: [email protected] CC: [email protected] TO: Fan Fei <[email protected]> CC: Bjorn Helgaas <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 26291c54e111ff6ba87a164d85d4a4e134b7315c commit: d5a4835b5ed05b1f14a00e0db9f2c91ae7d1ede6 PCI: mediatek-gen3: Rename mtk_pcie_port to mtk_gen3_pcie date: 4 weeks ago :::::: branch date: 2 days ago :::::: commit date: 4 weeks ago config: riscv-randconfig-c006-20220131 (https://download.01.org/0day-ci/archive/20220202/[email protected]/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6b1e844b69f15bb7dffaf9365cd2b355d2eb7579) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d5a4835b5ed05b1f14a00e0db9f2c91ae7d1ede6 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout d5a4835b5ed05b1f14a00e0db9f2c91ae7d1ede6 # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv clang-analyzer If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> clang-analyzer warnings: (new ones prefixed by >>) ^ include/linux/iopoll.h:156:2: note: expanded from macro 'readl_poll_timeout' readx_poll_timeout(readl, addr, val, cond, delay_us, timeout_us) ^ include/linux/iopoll.h:121:2: note: expanded from macro 'readx_poll_timeout' read_poll_timeout(op, val, cond, sleep_us, timeout_us, false, addr) ^ include/linux/iopoll.h:47:3: note: expanded from macro 'read_poll_timeout' if (cond) \ ^ drivers/pci/controller/pcie-mediatek-gen3.c:318:8: note: Execution continues on line 318 err = readl_poll_timeout(pcie->base + PCIE_LINK_STATUS_REG, val, ^ include/linux/iopoll.h:156:2: note: expanded from macro 'readl_poll_timeout' readx_poll_timeout(readl, addr, val, cond, delay_us, timeout_us) ^ include/linux/iopoll.h:121:2: note: expanded from macro 'readx_poll_timeout' read_poll_timeout(op, val, cond, sleep_us, timeout_us, false, addr) ^ include/linux/iopoll.h:48:4: note: expanded from macro 'read_poll_timeout' break; \ ^ drivers/pci/controller/pcie-mediatek-gen3.c:318:8: note: '?' condition is true err = readl_poll_timeout(pcie->base + PCIE_LINK_STATUS_REG, val, ^ include/linux/iopoll.h:156:2: note: expanded from macro 'readl_poll_timeout' readx_poll_timeout(readl, addr, val, cond, delay_us, timeout_us) ^ include/linux/iopoll.h:121:2: note: expanded from macro 'readx_poll_timeout' read_poll_timeout(op, val, cond, sleep_us, timeout_us, false, addr) ^ include/linux/iopoll.h:57:2: note: expanded from macro 'read_poll_timeout' (cond) ? 0 : -ETIMEDOUT; \ ^ drivers/pci/controller/pcie-mediatek-gen3.c:321:6: note: 'err' is 0 if (err) { ^~~ drivers/pci/controller/pcie-mediatek-gen3.c:321:2: note: Taking false branch if (err) { ^ drivers/pci/controller/pcie-mediatek-gen3.c:330:2: note: Loop condition is true. Entering loop body resource_list_for_each_entry(entry, &host->windows) { ^ include/linux/resource_ext.h:64:2: note: expanded from macro 'resource_list_for_each_entry' list_for_each_entry((entry), (list), node) ^ include/linux/list.h:630:2: note: expanded from macro 'list_for_each_entry' for (pos = list_first_entry(head, typeof(*pos), member); \ ^ drivers/pci/controller/pcie-mediatek-gen3.c:338:7: note: Assuming 'type' is equal to IORESOURCE_IO if (type == IORESOURCE_IO) { ^~~~~~~~~~~~~~~~~~~~~ drivers/pci/controller/pcie-mediatek-gen3.c:338:3: note: Taking true branch if (type == IORESOURCE_IO) { ^ drivers/pci/controller/pcie-mediatek-gen3.c:350:9: note: Calling 'mtk_pcie_set_trans_table' err = mtk_pcie_set_trans_table(pcie, cpu_addr, pci_addr, size, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/pci/controller/pcie-mediatek-gen3.c:219:6: note: 'num' is < PCIE_MAX_TRANS_TABLES if (num >= PCIE_MAX_TRANS_TABLES) { ^~~ drivers/pci/controller/pcie-mediatek-gen3.c:219:2: note: Taking false branch if (num >= PCIE_MAX_TRANS_TABLES) { ^ drivers/pci/controller/pcie-mediatek-gen3.c:228:2: note: Loop condition is false. Exiting loop writel_relaxed(lower_32_bits(cpu_addr) | PCIE_ATR_SIZE(fls(size) - 1), ^ arch/riscv/include/asm/mmio.h:120:33: note: expanded from macro 'writel_relaxed' #define writel_relaxed(v, c) ({ __io_rbw(); writel_cpu((v), (c)); __io_raw(); }) ^ arch/riscv/include/asm/mmio.h:111:21: note: expanded from macro '__io_rbw' #define __io_rbw() do {} while (0) ^ drivers/pci/controller/pcie-mediatek-gen3.c:228:43: note: The result of the left shift is undefined because the left operand is negative writel_relaxed(lower_32_bits(cpu_addr) | PCIE_ATR_SIZE(fls(size) - 1), ^ drivers/pci/controller/pcie-mediatek-gen3.c:92:18: note: expanded from macro 'PCIE_ATR_SIZE' (((((size) - 1) << 1) & GENMASK(6, 1)) | PCIE_ATR_EN) ^ arch/riscv/include/asm/mmio.h:120:57: note: expanded from macro 'writel_relaxed' #define writel_relaxed(v, c) ({ __io_rbw(); writel_cpu((v), (c)); __io_raw(); }) ~~~~~~~~~~~~^~~~~~~~ arch/riscv/include/asm/mmio.h:93:71: note: expanded from macro 'writel_cpu' #define writel_cpu(v, c) ((void)__raw_writel((__force u32)cpu_to_le32(v), (c))) ~~~~~~~~~~~~^~ include/uapi/linux/byteorder/little_endian.h:33:51: note: expanded from macro '__cpu_to_le32' #define __cpu_to_le32(x) ((__force __le32)(__u32)(x)) ^ drivers/pci/controller/pcie-mediatek-gen3.c:340:4: warning: Value stored to 'range_type' is never read [clang-analyzer-deadcode.DeadStores] range_type = "IO"; ^ ~~~~ drivers/pci/controller/pcie-mediatek-gen3.c:340:4: note: Value stored to 'range_type' is never read range_type = "IO"; ^ ~~~~ drivers/pci/controller/pcie-mediatek-gen3.c:343:4: warning: Value stored to 'range_type' is never read [clang-analyzer-deadcode.DeadStores] range_type = "MEM"; ^ ~~~~~ drivers/pci/controller/pcie-mediatek-gen3.c:343:4: note: Value stored to 'range_type' is never read range_type = "MEM"; ^ ~~~~~ >> drivers/pci/controller/pcie-mediatek-gen3.c:399:24: warning: Value stored to >> 'pcie' during its initialization is never read >> [clang-analyzer-deadcode.DeadStores] struct mtk_gen3_pcie *pcie = data->domain->host_data; ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~ drivers/pci/controller/pcie-mediatek-gen3.c:399:24: note: Value stored to 'pcie' during its initialization is never read struct mtk_gen3_pcie *pcie = data->domain->host_data; ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. drivers/regulator/rk808-regulator.c:255:10: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign] old_sel >>= ffs(mask) - 1; ^ drivers/regulator/rk808-regulator.c:302:6: note: Assuming 'gpio' is null if (!gpio) ^~~~~ drivers/regulator/rk808-regulator.c:302:2: note: Taking true branch if (!gpio) ^ drivers/regulator/rk808-regulator.c:303:10: note: Calling 'rk808_buck1_2_i2c_set_voltage_sel' return rk808_buck1_2_i2c_set_voltage_sel(rdev, sel); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/regulator/rk808-regulator.c:250:6: note: Assuming 'ret' is equal to 0 if (ret != 0) ^~~~~~~~ drivers/regulator/rk808-regulator.c:250:2: note: Taking false branch if (ret != 0) ^ drivers/regulator/rk808-regulator.c:255:10: note: Assigned value is garbage or undefined old_sel >>= ffs(mask) - 1; ^ ~~~~~~~~~~~~~ drivers/regulator/rk808-regulator.c:274:3: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores] ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/regulator/rk808-regulator.c:274:3: note: Value stored to 'ret' is never read ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. drivers/regulator/rohm-regulator.c:48:6: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign] i <<= ffs(desc->vsel_mask) - 1; ^ drivers/regulator/rohm-regulator.c:68:14: note: 'i' is < ROHM_DVS_LEVEL_VALID_AMOUNT for (i = 0; i < ROHM_DVS_LEVEL_VALID_AMOUNT && !ret; i++) { ^ drivers/regulator/rohm-regulator.c:68:14: note: Left side of '&&' is true drivers/regulator/rohm-regulator.c:68:2: note: Loop condition is true. Entering loop body for (i = 0; i < ROHM_DVS_LEVEL_VALID_AMOUNT && !ret; i++) { ^ drivers/regulator/rohm-regulator.c:72:7: note: Assuming the condition is true if (dvs->level_map & bit) { ^~~~~~~~~~~~~~~~~~~~ drivers/regulator/rohm-regulator.c:72:3: note: Taking true branch if (dvs->level_map & bit) { ^ drivers/regulator/rohm-regulator.c:73:4: note: Control jumps to 'case 1:' at line 74 switch (bit) { ^ drivers/regulator/rohm-regulator.c:79:5: note: Execution continues on line 107 break; ^ drivers/regulator/rohm-regulator.c:107:10: note: Calling 'set_dvs_level' ret = set_dvs_level(desc, np, regmap, prop, reg, mask, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/regulator/rohm-regulator.c:19:8: note: Calling 'of_property_read_u32' ret = of_property_read_u32(np, prop, &uv); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/of.h:1257:9: note: Calling 'of_property_read_u32_array' return of_property_read_u32_array(np, propname, out_value, 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/of.h:507:6: note: Assuming 'ret' is >= 0 if (ret >= 0) ^~~~~~~~ include/linux/of.h:507:2: note: Taking true branch if (ret >= 0) ^ include/linux/of.h:508:3: note: Returning zero, which participates in a condition later return 0; ^~~~~~~~ include/linux/of.h:1257:9: note: Returning from 'of_property_read_u32_array' return of_property_read_u32_array(np, propname, out_value, 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/of.h:1257:2: note: Returning zero, which participates in a condition later return of_property_read_u32_array(np, propname, out_value, 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/regulator/rohm-regulator.c:19:8: note: Returning from 'of_property_read_u32' ret = of_property_read_u32(np, prop, &uv); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/regulator/rohm-regulator.c:20:6: note: 'ret' is 0 if (ret) { ^~~ drivers/regulator/rohm-regulator.c:20:2: note: Taking false branch if (ret) { ^ drivers/regulator/rohm-regulator.c:26:6: note: Assuming 'uv' is not equal to 0 if (uv == 0) { ^~~~~~~ drivers/regulator/rohm-regulator.c:26:2: note: Taking false branch if (uv == 0) { ^ drivers/regulator/rohm-regulator.c:31:6: note: Assuming 'mask' is not equal to 0 vim +/pcie +399 drivers/pci/controller/pcie-mediatek-gen3.c 1bdafba538be70 Jianjun Wang 2021-04-20 395 1bdafba538be70 Jianjun Wang 2021-04-20 396 static void mtk_compose_msi_msg(struct irq_data *data, struct msi_msg *msg) 1bdafba538be70 Jianjun Wang 2021-04-20 397 { 1bdafba538be70 Jianjun Wang 2021-04-20 398 struct mtk_msi_set *msi_set = irq_data_get_irq_chip_data(data); d5a4835b5ed05b Fan Fei 2021-12-22 @399 struct mtk_gen3_pcie *pcie = data->domain->host_data; 1bdafba538be70 Jianjun Wang 2021-04-20 400 unsigned long hwirq; 1bdafba538be70 Jianjun Wang 2021-04-20 401 1bdafba538be70 Jianjun Wang 2021-04-20 402 hwirq = data->hwirq % PCIE_MSI_IRQS_PER_SET; 1bdafba538be70 Jianjun Wang 2021-04-20 403 1bdafba538be70 Jianjun Wang 2021-04-20 404 msg->address_hi = upper_32_bits(msi_set->msg_addr); 1bdafba538be70 Jianjun Wang 2021-04-20 405 msg->address_lo = lower_32_bits(msi_set->msg_addr); 1bdafba538be70 Jianjun Wang 2021-04-20 406 msg->data = hwirq; d5a4835b5ed05b Fan Fei 2021-12-22 407 dev_dbg(pcie->dev, "msi#%#lx address_hi %#x address_lo %#x data %d\n", 1bdafba538be70 Jianjun Wang 2021-04-20 408 hwirq, msg->address_hi, msg->address_lo, msg->data); 1bdafba538be70 Jianjun Wang 2021-04-20 409 } 1bdafba538be70 Jianjun Wang 2021-04-20 410 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected] _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
