CC: [email protected] CC: [email protected] CC: Linux Memory Management List <[email protected]> TO: Jonathan Lemon <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 7999516e20bd9bb5d1f7351cbd05ca529a3a8d60 commit: 773bda96492153e11d21eb63ac814669b51fc701 [4907/6030] ptp: ocp: Expose various resources on the timecard. :::::: branch date: 2 days ago :::::: commit date: 4 days ago config: x86_64-randconfig-c001-20210807 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 41a6b50c25961addc04438b567ee1f4ef9e40f98) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=773bda96492153e11d21eb63ac814669b51fc701 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 773bda96492153e11d21eb63ac814669b51fc701 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 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 >>) 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. 3 warnings generated. drivers/thermal/devfreq_cooling.c:87:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = df->dev.parent; ^~~ ~~~~~~~~~~~~~~ drivers/thermal/devfreq_cooling.c:87:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = df->dev.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. 3 warnings generated. Suppressed 3 warnings (3 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. Suppressed 3 warnings (3 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. Suppressed 3 warnings (3 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. Suppressed 3 warnings (3 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. 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. 4 warnings generated. 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. 4 warnings generated. 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. 4 warnings generated. 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. 4 warnings generated. 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. 4 warnings generated. 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. 4 warnings generated. 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. 4 warnings generated. 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. 4 warnings generated. 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. 4 warnings generated. 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. 5 warnings generated. Suppressed 5 warnings (5 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. 5 warnings generated. drivers/media/i2c/ov5640.c:1005:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores] ret = ov5640_mod_reg(sensor, OV5640_REG_SC_PLL_CTRL0, ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/ov5640.c:1005:2: note: Value stored to 'ret' is never read ret = ov5640_mod_reg(sensor, OV5640_REG_SC_PLL_CTRL0, ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. 4 warnings generated. 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. Suppressed 3 warnings (3 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. 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. 4 warnings generated. 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. Suppressed 3 warnings (3 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. Suppressed 3 warnings (3 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. 3 warnings generated. Suppressed 3 warnings (3 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. Suppressed 3 warnings (3 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. Suppressed 3 warnings (3 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/ptp/ptp_ocp.c:830:2: warning: Undefined or garbage value returned to >> caller [clang-analyzer-core.uninitialized.UndefReturn] return err; ^ drivers/ptp/ptp_ocp.c:844:7: note: 'dev' is non-null if (!dev) { ^~~ drivers/ptp/ptp_ocp.c:844:2: note: Taking false branch if (!dev) { ^ drivers/ptp/ptp_ocp.c:852:8: note: Calling 'ptp_ocp_devlink_flash' err = ptp_ocp_devlink_flash(devlink, dev, params->fw); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/ptp/ptp_ocp.c:803:2: note: 'err' declared without an initial value int err; ^~~~~~~ drivers/ptp/ptp_ocp.c:810:2: note: Loop condition is false. Execution continues on line 830 while (resid) { ^ drivers/ptp/ptp_ocp.c:830:2: note: Undefined or garbage value returned to caller return err; ^ ~~~ Suppressed 5 warnings (5 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. include/linux/list.h:135:13: warning: Use of memory after it is freed [clang-analyzer-unix.Malloc] __list_del(entry->prev, entry->next); ^ drivers/media/cec/core/cec-api.c:637:29: note: Left side of '&&' is false struct cec_adapter *adap = to_cec_adapter(devnode); ^ drivers/media/cec/core/cec-priv.h:21:30: note: expanded from macro 'to_cec_adapter' #define to_cec_adapter(node) container_of(node, struct cec_adapter, devnode) ^ include/linux/kernel.h:495:61: note: expanded from macro 'container_of' BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \ ^ drivers/media/cec/core/cec-api.c:637:29: note: Taking false branch struct cec_adapter *adap = to_cec_adapter(devnode); ^ drivers/media/cec/core/cec-priv.h:21:30: note: expanded from macro 'to_cec_adapter' #define to_cec_adapter(node) container_of(node, struct cec_adapter, devnode) ^ include/linux/kernel.h:495:2: note: expanded from macro 'container_of' BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \ ^ include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ include/linux/compiler_types.h:328:2: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:316:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ include/linux/compiler_types.h:308:3: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^ drivers/media/cec/core/cec-api.c:637:29: note: Loop condition is false. Exiting loop struct cec_adapter *adap = to_cec_adapter(devnode); ^ drivers/media/cec/core/cec-priv.h:21:30: note: expanded from macro 'to_cec_adapter' #define to_cec_adapter(node) container_of(node, struct cec_adapter, devnode) ^ include/linux/kernel.h:495:2: note: expanded from macro 'container_of' BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \ ^ include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ include/linux/compiler_types.h:328:2: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:316:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ include/linux/compiler_types.h:306:2: note: expanded from macro '__compiletime_assert' do { \ ^ drivers/media/cec/core/cec-api.c:642:6: note: Assuming 'fh' is equal to field 'cec_initiator' if (adap->cec_initiator == fh) ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/cec/core/cec-api.c:642:2: note: Taking true branch if (adap->cec_initiator == fh) ^ drivers/media/cec/core/cec-api.c:644:6: note: Assuming 'fh' is equal to field 'cec_follower' if (adap->cec_follower == fh) { ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/cec/core/cec-api.c:644:2: note: Taking true branch if (adap->cec_follower == fh) { ^ drivers/media/cec/core/cec-api.c:648:6: note: Assuming the condition is false if (fh->mode_follower == CEC_MODE_FOLLOWER) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/cec/core/cec-api.c:648:2: note: Taking false branch if (fh->mode_follower == CEC_MODE_FOLLOWER) ^ drivers/media/cec/core/cec-api.c:650:6: note: Assuming the condition is true if (fh->mode_follower == CEC_MODE_MONITOR_PIN) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/cec/core/cec-api.c:650:2: note: Taking true branch if (fh->mode_follower == CEC_MODE_MONITOR_PIN) vim +830 drivers/ptp/ptp_ocp.c 773bda96492153 Jonathan Lemon 2021-08-03 793 773bda96492153 Jonathan Lemon 2021-08-03 794 static int 773bda96492153 Jonathan Lemon 2021-08-03 795 ptp_ocp_devlink_flash(struct devlink *devlink, struct device *dev, 773bda96492153 Jonathan Lemon 2021-08-03 796 const struct firmware *fw) 773bda96492153 Jonathan Lemon 2021-08-03 797 { 773bda96492153 Jonathan Lemon 2021-08-03 798 struct mtd_info *mtd = dev_get_drvdata(dev); 773bda96492153 Jonathan Lemon 2021-08-03 799 struct ptp_ocp *bp = devlink_priv(devlink); 773bda96492153 Jonathan Lemon 2021-08-03 800 size_t off, len, resid, wrote; 773bda96492153 Jonathan Lemon 2021-08-03 801 struct erase_info erase; 773bda96492153 Jonathan Lemon 2021-08-03 802 size_t base, blksz; 773bda96492153 Jonathan Lemon 2021-08-03 803 int err; 773bda96492153 Jonathan Lemon 2021-08-03 804 773bda96492153 Jonathan Lemon 2021-08-03 805 off = 0; 773bda96492153 Jonathan Lemon 2021-08-03 806 base = bp->flash_start; 773bda96492153 Jonathan Lemon 2021-08-03 807 blksz = 4096; 773bda96492153 Jonathan Lemon 2021-08-03 808 resid = fw->size; 773bda96492153 Jonathan Lemon 2021-08-03 809 773bda96492153 Jonathan Lemon 2021-08-03 810 while (resid) { 773bda96492153 Jonathan Lemon 2021-08-03 811 devlink_flash_update_status_notify(devlink, "Flashing", 773bda96492153 Jonathan Lemon 2021-08-03 812 NULL, off, fw->size); 773bda96492153 Jonathan Lemon 2021-08-03 813 773bda96492153 Jonathan Lemon 2021-08-03 814 len = min_t(size_t, resid, blksz); 773bda96492153 Jonathan Lemon 2021-08-03 815 erase.addr = base + off; 773bda96492153 Jonathan Lemon 2021-08-03 816 erase.len = blksz; a7e1abad13f3f0 Jonathan Lemon 2020-12-03 817 773bda96492153 Jonathan Lemon 2021-08-03 818 err = mtd_erase(mtd, &erase); a7e1abad13f3f0 Jonathan Lemon 2020-12-03 819 if (err) a7e1abad13f3f0 Jonathan Lemon 2020-12-03 820 goto out; a7e1abad13f3f0 Jonathan Lemon 2020-12-03 821 773bda96492153 Jonathan Lemon 2021-08-03 822 err = mtd_write(mtd, base + off, len, &wrote, &fw->data[off]); 773bda96492153 Jonathan Lemon 2021-08-03 823 if (err) a7e1abad13f3f0 Jonathan Lemon 2020-12-03 824 goto out; 773bda96492153 Jonathan Lemon 2021-08-03 825 773bda96492153 Jonathan Lemon 2021-08-03 826 off += blksz; 773bda96492153 Jonathan Lemon 2021-08-03 827 resid -= len; 773bda96492153 Jonathan Lemon 2021-08-03 828 } 773bda96492153 Jonathan Lemon 2021-08-03 829 out: 773bda96492153 Jonathan Lemon 2021-08-03 @830 return err; a7e1abad13f3f0 Jonathan Lemon 2020-12-03 831 } a7e1abad13f3f0 Jonathan Lemon 2020-12-03 832 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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