CC: [email protected] CC: [email protected] CC: [email protected] TO: Emil Renner Berthing <[email protected]> CC: Andy Shevchenko <[email protected]> CC: Linus Walleij <[email protected]> CC: Huan Feng <[email protected]> CC: Drew Fustini <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 88808fbbead481aedb46640a5ace69c58287f56a commit: ec648f6b7686b716424e8e73eebb4c11ae199187 pinctrl: starfive: Add pinctrl driver for StarFive SoCs date: 7 weeks ago :::::: branch date: 5 hours ago :::::: commit date: 7 weeks ago config: arm-randconfig-c002-20220201 (https://download.01.org/0day-ci/archive/20220203/[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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ec648f6b7686b716424e8e73eebb4c11ae199187 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout ec648f6b7686b716424e8e73eebb4c11ae199187 # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm 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 >>) ^ fs/ext4/extents.c:4181:6: note: Assuming the condition is false if ((flags & EXT4_GET_BLOCKS_CREATE) == 0) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/ext4/extents.c:4181:2: note: Taking false branch if ((flags & EXT4_GET_BLOCKS_CREATE) == 0) { ^ fs/ext4/extents.c:4211:6: note: Assuming 'cluster_offset' is 0 if (cluster_offset && ex && ^~~~~~~~~~~~~~ fs/ext4/extents.c:4211:21: note: Left side of '&&' is false if (cluster_offset && ex && ^ fs/ext4/extents.c:4221:6: note: 'err' is 0 if (err) ^~~ fs/ext4/extents.c:4221:2: note: Taking false branch if (err) ^ fs/ext4/extents.c:4224:8: note: Calling 'ext4_ext_search_right' err = ext4_ext_search_right(inode, path, &ar.lright, &ar.pright, &ex2); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/ext4/extents.c:1539:15: note: 'path' is not equal to null if (unlikely(path == NULL)) { ^ include/linux/compiler.h:78:42: note: expanded from macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ fs/ext4/extents.c:1539:2: note: Taking false branch if (unlikely(path == NULL)) { ^ fs/ext4/extents.c:1546:6: note: 'depth' is not equal to 0 if (depth == 0 && path->p_ext == NULL) ^~~~~ fs/ext4/extents.c:1546:17: note: Left side of '&&' is false if (depth == 0 && path->p_ext == NULL) ^ fs/ext4/extents.c:1555:2: note: Taking false branch if (*logical < le32_to_cpu(ex->ee_block)) { ^ fs/ext4/extents.c:1574:2: note: Taking false branch if (unlikely(*logical < (le32_to_cpu(ex->ee_block) + ee_len))) { ^ fs/ext4/extents.c:1581:6: note: Assuming the condition is false if (ex != EXT_LAST_EXTENT(path[depth].p_hdr)) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/ext4/extents.c:1581:2: note: Taking false branch if (ex != EXT_LAST_EXTENT(path[depth].p_hdr)) { ^ fs/ext4/extents.c:1588:2: note: Loop condition is true. Entering loop body while (--depth >= 0) { ^ fs/ext4/extents.c:1590:7: note: Assuming the condition is true if (ix != EXT_LAST_INDEX(path[depth].p_hdr)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/ext4/extents.c:1590:3: note: Taking true branch if (ix != EXT_LAST_INDEX(path[depth].p_hdr)) ^ fs/ext4/extents.c:1591:4: note: Control jumps to line 1601 goto got_index; ^ fs/ext4/extents.c:1602:2: note: Loop condition is false. Execution continues on line 1612 while (++depth < path->p_depth) { ^ fs/ext4/extents.c:1613:2: note: Taking true branch if (IS_ERR(bh)) ^ fs/ext4/extents.c:1614:3: note: Returning without writing to 'ret_ex->ee_block' return PTR_ERR(bh); ^ fs/ext4/extents.c:4224:8: note: Returning from 'ext4_ext_search_right' err = ext4_ext_search_right(inode, path, &ar.lright, &ar.pright, &ex2); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/ext4/extents.c:4225:6: note: 'err' is >= 0 if (err < 0) ^~~ fs/ext4/extents.c:4225:2: note: Taking false branch if (err < 0) ^ fs/ext4/extents.c:4230:7: note: Assuming field 's_cluster_ratio' is > 1 if ((sbi->s_cluster_ratio > 1) && err && ^~~~~~~~~~~~~~~~~~~~~~~~ fs/ext4/extents.c:4230:6: note: Left side of '&&' is true if ((sbi->s_cluster_ratio > 1) && err && ^ fs/ext4/extents.c:4230:36: note: 'err' is not equal to 0 if ((sbi->s_cluster_ratio > 1) && err && ^~~ fs/ext4/extents.c:4230:6: note: Left side of '&&' is true if ((sbi->s_cluster_ratio > 1) && err && ^ fs/ext4/extents.c:4231:6: note: Calling 'get_implied_cluster_alloc' get_implied_cluster_alloc(inode->i_sb, map, &ex2, path)) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/ext4/extents.c:4013:2: note: Assigned value is garbage or undefined ext4_lblk_t ee_block = le32_to_cpu(ex->ee_block); ^ Suppressed 4 warnings (4 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/pinctrl/pinctrl-starfive.c:640:17: warning: Value stored to 'dev' >> during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = sfp->gc.parent; ^~~ ~~~~~~~~~~~~~~ drivers/pinctrl/pinctrl-starfive.c:640:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = sfp->gc.parent; ^~~ ~~~~~~~~~~~~~~ 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. 2 warnings generated. 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. 6 warnings generated. drivers/pinctrl/pinctrl-ingenic.c:3627:15: warning: Value stored to 'idx' during its initialization is never read [clang-analyzer-deadcode.DeadStores] unsigned int idx = pin % PINS_PER_GPIO_CHIP; ^~~ ~~~~~~~~~~~~~~~~~~~~~~~~ drivers/pinctrl/pinctrl-ingenic.c:3627:15: note: Value stored to 'idx' during its initialization is never read unsigned int idx = pin % PINS_PER_GPIO_CHIP; ^~~ ~~~~~~~~~~~~~~~~~~~~~~~~ drivers/pinctrl/pinctrl-ingenic.c:3628:15: warning: Value stored to 'offt' during its initialization is never read [clang-analyzer-deadcode.DeadStores] unsigned int offt = pin / PINS_PER_GPIO_CHIP; ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~~ drivers/pinctrl/pinctrl-ingenic.c:3628:15: note: Value stored to 'offt' during its initialization is never read unsigned int offt = pin / PINS_PER_GPIO_CHIP; ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~~ drivers/pinctrl/pinctrl-ingenic.c:3696:15: warning: Value stored to 'idx' during its initialization is never read [clang-analyzer-deadcode.DeadStores] unsigned int idx = pin % PINS_PER_GPIO_CHIP; ^~~ ~~~~~~~~~~~~~~~~~~~~~~~~ drivers/pinctrl/pinctrl-ingenic.c:3696:15: note: Value stored to 'idx' during its initialization is never read unsigned int idx = pin % PINS_PER_GPIO_CHIP; ^~~ ~~~~~~~~~~~~~~~~~~~~~~~~ drivers/pinctrl/pinctrl-ingenic.c:3697:15: warning: Value stored to 'offt' during its initialization is never read [clang-analyzer-deadcode.DeadStores] unsigned int offt = pin / PINS_PER_GPIO_CHIP; ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~~ drivers/pinctrl/pinctrl-ingenic.c:3697:15: note: Value stored to 'offt' during its initialization is never read unsigned int offt = pin / PINS_PER_GPIO_CHIP; ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~~ 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. 2 warnings generated. 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. 2 warnings generated. 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. 2 warnings generated. 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. 2 warnings generated. 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. 9 warnings generated. drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:73:2: warning: Value stored to 'temp' is never read [clang-analyzer-deadcode.DeadStores] temp = RREG32(rec->mask_clk_reg); ^ drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:73:2: note: Value stored to 'temp' is never read drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:77:2: warning: Value stored to 'temp' is never read [clang-analyzer-deadcode.DeadStores] temp = RREG32(rec->mask_data_reg); ^ drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:77:2: note: Value stored to 'temp' is never read drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:92:2: warning: Value stored to 'temp' is never read [clang-analyzer-deadcode.DeadStores] temp = RREG32(rec->mask_clk_reg); ^ drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:92:2: note: Value stored to 'temp' is never read drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:96:2: warning: Value stored to 'temp' is never read [clang-analyzer-deadcode.DeadStores] temp = RREG32(rec->mask_data_reg); ^ drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:96:2: note: Value stored to 'temp' is never read drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:312:3: warning: 4th function call argument is an uninitialized value [clang-analyzer-core.CallAndMessage] DRM_DEBUG("i2c 0x%02x 0x%02x read failed\n", ^ include/drm/drm_print.h:526:2: note: expanded from macro 'DRM_DEBUG' __drm_dbg(DRM_UT_CORE, fmt, ##__VA_ARGS__) ^ drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:371:2: note: 'val' declared without an initial value u8 val; ^~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:373:6: note: Assuming field 'cd_valid' is true if (!amdgpu_connector->router.cd_valid) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:373:2: note: Taking false branch if (!amdgpu_connector->router.cd_valid) ^ drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:376:6: note: Assuming field 'router_bus' is non-null if (!amdgpu_connector->router_bus) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:376:2: note: Taking false branch if (!amdgpu_connector->router_bus) ^ drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:379:2: note: Calling 'amdgpu_i2c_get_byte' amdgpu_i2c_get_byte(amdgpu_connector->router_bus, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:308:6: note: Assuming the condition is false if (i2c_transfer(&i2c_bus->adapter, msgs, 2) == 2) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:308:2: note: Taking false branch if (i2c_transfer(&i2c_bus->adapter, msgs, 2) == 2) { ^ drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c:312:3: note: 4th function call argument is an uninitialized value DRM_DEBUG("i2c 0x%02x 0x%02x read failed\n", ^ include/drm/drm_print.h:526:2: note: expanded from macro 'DRM_DEBUG' vim +/dev +640 drivers/pinctrl/pinctrl-starfive.c ec648f6b7686b7 Emil Renner Berthing 2021-07-06 635 ec648f6b7686b7 Emil Renner Berthing 2021-07-06 636 static int starfive_set_mux(struct pinctrl_dev *pctldev, ec648f6b7686b7 Emil Renner Berthing 2021-07-06 637 unsigned int fsel, unsigned int gsel) ec648f6b7686b7 Emil Renner Berthing 2021-07-06 638 { ec648f6b7686b7 Emil Renner Berthing 2021-07-06 639 struct starfive_pinctrl *sfp = pinctrl_dev_get_drvdata(pctldev); ec648f6b7686b7 Emil Renner Berthing 2021-07-06 @640 struct device *dev = sfp->gc.parent; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 641 const struct group_desc *group; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 642 const u32 *pinmux; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 643 unsigned int i; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 644 ec648f6b7686b7 Emil Renner Berthing 2021-07-06 645 group = pinctrl_generic_get_group(pctldev, gsel); ec648f6b7686b7 Emil Renner Berthing 2021-07-06 646 if (!group) ec648f6b7686b7 Emil Renner Berthing 2021-07-06 647 return -EINVAL; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 648 ec648f6b7686b7 Emil Renner Berthing 2021-07-06 649 pinmux = group->data; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 650 for (i = 0; i < group->num_pins; i++) { ec648f6b7686b7 Emil Renner Berthing 2021-07-06 651 u32 v = pinmux[i]; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 652 unsigned int gpio = starfive_pinmux_to_gpio(v); ec648f6b7686b7 Emil Renner Berthing 2021-07-06 653 u32 dout = starfive_pinmux_to_dout(v); ec648f6b7686b7 Emil Renner Berthing 2021-07-06 654 u32 doen = starfive_pinmux_to_doen(v); ec648f6b7686b7 Emil Renner Berthing 2021-07-06 655 u32 din = starfive_pinmux_to_din(v); ec648f6b7686b7 Emil Renner Berthing 2021-07-06 656 void __iomem *reg_dout; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 657 void __iomem *reg_doen; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 658 void __iomem *reg_din; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 659 unsigned long flags; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 660 ec648f6b7686b7 Emil Renner Berthing 2021-07-06 661 dev_dbg(dev, "GPIO%u: dout=0x%x doen=0x%x din=0x%x\n", ec648f6b7686b7 Emil Renner Berthing 2021-07-06 662 gpio, dout, doen, din); ec648f6b7686b7 Emil Renner Berthing 2021-07-06 663 ec648f6b7686b7 Emil Renner Berthing 2021-07-06 664 reg_dout = sfp->base + GPON_DOUT_CFG + 8 * gpio; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 665 reg_doen = sfp->base + GPON_DOEN_CFG + 8 * gpio; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 666 if (din != GPI_NONE) ec648f6b7686b7 Emil Renner Berthing 2021-07-06 667 reg_din = sfp->base + GPI_CFG_OFFSET + 4 * din; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 668 else ec648f6b7686b7 Emil Renner Berthing 2021-07-06 669 reg_din = NULL; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 670 ec648f6b7686b7 Emil Renner Berthing 2021-07-06 671 raw_spin_lock_irqsave(&sfp->lock, flags); ec648f6b7686b7 Emil Renner Berthing 2021-07-06 672 writel_relaxed(dout, reg_dout); ec648f6b7686b7 Emil Renner Berthing 2021-07-06 673 writel_relaxed(doen, reg_doen); ec648f6b7686b7 Emil Renner Berthing 2021-07-06 674 if (reg_din) ec648f6b7686b7 Emil Renner Berthing 2021-07-06 675 writel_relaxed(gpio + 2, reg_din); ec648f6b7686b7 Emil Renner Berthing 2021-07-06 676 raw_spin_unlock_irqrestore(&sfp->lock, flags); ec648f6b7686b7 Emil Renner Berthing 2021-07-06 677 } ec648f6b7686b7 Emil Renner Berthing 2021-07-06 678 ec648f6b7686b7 Emil Renner Berthing 2021-07-06 679 return 0; ec648f6b7686b7 Emil Renner Berthing 2021-07-06 680 } ec648f6b7686b7 Emil Renner Berthing 2021-07-06 681 --- 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]
