CC: [email protected] CC: [email protected] CC: [email protected] TO: Paul Kocialkowski <[email protected]> CC: Mauro Carvalho Chehab <[email protected]> CC: [email protected] CC: Sakari Ailus <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 9ff50bf2f2ff5fab01cac26d8eed21a89308e6ef commit: e43ccb0a045f34838b786e8021dc4838b4af5c38 media: i2c: Add support for the OV5648 image sensor date: 7 months ago :::::: branch date: 18 hours ago :::::: commit date: 7 months ago config: x86_64-randconfig-c007-20210821 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d9c5613e856cf2addfbf892fc4c1ce9ef9feceaa) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e43ccb0a045f34838b786e8021dc4838b4af5c38 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout e43ccb0a045f34838b786e8021dc4838b4af5c38 # 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 >>) ^ net/socket.c:2856:9: note: Taking false branch call = array_index_nospec(call, SYS_SENDMMSG + 1); ^ include/linux/nospec.h:58:2: note: expanded from macro 'array_index_nospec' BUILD_BUG_ON(sizeof(_s) > sizeof(long)); \ ^ include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON' BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^ 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:326:2: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:314:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ include/linux/compiler_types.h:306:3: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^ net/socket.c:2856:9: note: Loop condition is false. Exiting loop call = array_index_nospec(call, SYS_SENDMMSG + 1); ^ include/linux/nospec.h:58:2: note: expanded from macro 'array_index_nospec' BUILD_BUG_ON(sizeof(_s) > sizeof(long)); \ ^ include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON' BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^ 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:326:2: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:314:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ include/linux/compiler_types.h:304:2: note: expanded from macro '__compiletime_assert' do { \ ^ net/socket.c:2859:6: note: Assuming the condition is false if (len > sizeof(a)) ^~~~~~~~~~~~~~~ net/socket.c:2859:2: note: Taking false branch if (len > sizeof(a)) ^ net/socket.c:2863:6: note: Calling 'copy_from_user' if (copy_from_user(a, args, len)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/uaccess.h:191:6: note: Assuming the condition is true if (likely(check_copy_size(to, n, false))) ^ include/linux/compiler.h:77:38: note: expanded from macro 'likely' # define likely(x) __builtin_expect(!!(x), 1) ^~~~ include/linux/uaccess.h:191:2: note: Taking false branch if (likely(check_copy_size(to, n, false))) ^ include/linux/uaccess.h:193:2: note: Returning without writing to '*to' return n; ^ include/linux/uaccess.h:193:2: note: Returning value (loaded from 'n'), which participates in a condition later return n; ^~~~~~~~ net/socket.c:2863:6: note: Returning from 'copy_from_user' if (copy_from_user(a, args, len)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/socket.c:2863:6: note: Assuming the condition is false if (copy_from_user(a, args, len)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/socket.c:2863:2: note: Taking false branch if (copy_from_user(a, args, len)) ^ net/socket.c:2866:8: note: Calling 'audit_socketcall' err = audit_socketcall(nargs[call] / sizeof(unsigned long), a); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/audit.h:611:2: note: Returning without writing to '*args' return 0; ^ include/linux/audit.h:611:2: note: Returning zero, which participates in a condition later return 0; ^~~~~~~~ net/socket.c:2866:8: note: Returning from 'audit_socketcall' err = audit_socketcall(nargs[call] / sizeof(unsigned long), a); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/socket.c:2867:6: note: 'err' is 0 if (err) ^~~ net/socket.c:2867:2: note: Taking false branch if (err) ^ net/socket.c:2870:5: note: Assigned value is garbage or undefined a0 = a[0]; ^ ~~~~ Suppressed 11 warnings (11 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. 7 warnings generated. >> drivers/media/i2c/ov5648.c:587:8: warning: Excessive padding in 'struct >> ov5648_mode' (10 padding bytes, where 2 is optimal). Optimal fields order: pll2_config, register_values, pll1_config, crop_start_x, offset_x, output_size_x, crop_end_x, hts, crop_start_y, offset_y, output_size_y, crop_end_y, vts, inc_x_odd, inc_x_even, inc_y_odd, inc_y_even, register_values_count, frame_interval, binning_x, binning_y, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding] struct ov5648_mode { ~~~~~~~^~~~~~~~~~~~~ drivers/media/i2c/ov5648.c:587:8: note: Excessive padding in 'struct ov5648_mode' (10 padding bytes, where 2 is optimal). Optimal fields order: pll2_config, register_values, pll1_config, crop_start_x, offset_x, output_size_x, crop_end_x, hts, crop_start_y, offset_y, output_size_y, crop_end_y, vts, inc_x_odd, inc_x_even, inc_y_odd, inc_y_even, register_values_count, frame_interval, binning_x, binning_y, consider reordering the fields or adding explicit padding members struct ov5648_mode { ~~~~~~~^~~~~~~~~~~~~ Suppressed 6 warnings (6 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. Suppressed 6 warnings (6 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. Suppressed 6 warnings (6 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. 7 warnings generated. drivers/media/i2c/ov5695.c:1135:3: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores] ret = ov5695_write_reg(ov5695->client, OV5695_REG_DIGI_GAIN_L, ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/ov5695.c:1135:3: note: Value stored to 'ret' is never read ret = ov5695_write_reg(ov5695->client, OV5695_REG_DIGI_GAIN_L, ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 6 warnings (6 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. Suppressed 6 warnings (6 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. 7 warnings generated. drivers/media/i2c/ov772x.c:583:21: warning: Value stored to 'client' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct i2c_client *client = v4l2_get_subdevdata(sd); ^~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/ov772x.c:583:21: note: Value stored to 'client' during its initialization is never read struct i2c_client *client = v4l2_get_subdevdata(sd); ^~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 6 warnings (6 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. Suppressed 6 warnings (6 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. Suppressed 6 warnings (6 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. 11 warnings generated. Suppressed 11 warnings (11 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. 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. 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. 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. 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. Suppressed 6 warnings (6 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. 7 warnings generated. kernel/workqueue.c:147:8: warning: Excessive padding in 'struct worker_pool' (64 padding bytes, where 0 is optimal). Optimal fields order: nr_running, cpu, watchdog_ts, manager, detach_completion, attrs, worklist, idle_list, workers, hash_node, rcu, lock, idle_timer, vim +587 drivers/media/i2c/ov5648.c e43ccb0a045f34 Paul Kocialkowski 2020-12-31 575 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 576 /* e43ccb0a045f34 Paul Kocialkowski 2020-12-31 577 * General formulas for (array-centered) mode calculation: e43ccb0a045f34 Paul Kocialkowski 2020-12-31 578 * - photo_array_width = 2624 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 579 * - crop_start_x = (photo_array_width - output_size_x) / 2 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 580 * - crop_end_x = crop_start_x + offset_x + output_size_x - 1 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 581 * e43ccb0a045f34 Paul Kocialkowski 2020-12-31 582 * - photo_array_height = 1956 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 583 * - crop_start_y = (photo_array_height - output_size_y) / 2 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 584 * - crop_end_y = crop_start_y + offset_y + output_size_y - 1 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 585 */ e43ccb0a045f34 Paul Kocialkowski 2020-12-31 586 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 @587 struct ov5648_mode { e43ccb0a045f34 Paul Kocialkowski 2020-12-31 588 unsigned int crop_start_x; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 589 unsigned int offset_x; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 590 unsigned int output_size_x; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 591 unsigned int crop_end_x; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 592 unsigned int hts; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 593 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 594 unsigned int crop_start_y; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 595 unsigned int offset_y; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 596 unsigned int output_size_y; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 597 unsigned int crop_end_y; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 598 unsigned int vts; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 599 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 600 bool binning_x; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 601 bool binning_y; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 602 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 603 unsigned int inc_x_odd; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 604 unsigned int inc_x_even; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 605 unsigned int inc_y_odd; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 606 unsigned int inc_y_even; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 607 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 608 /* 8-bit frame interval followed by 10-bit frame interval. */ e43ccb0a045f34 Paul Kocialkowski 2020-12-31 609 struct v4l2_fract frame_interval[2]; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 610 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 611 /* 8-bit config followed by 10-bit config. */ e43ccb0a045f34 Paul Kocialkowski 2020-12-31 612 const struct ov5648_pll1_config *pll1_config[2]; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 613 const struct ov5648_pll2_config *pll2_config; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 614 e43ccb0a045f34 Paul Kocialkowski 2020-12-31 615 const struct ov5648_register_value *register_values; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 616 unsigned int register_values_count; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 617 }; e43ccb0a045f34 Paul Kocialkowski 2020-12-31 618 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
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