CC: kbuild-...@lists.01.org BCC: l...@intel.com TO: Wolfram Sang <wsa-...@sang-engineering.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-mergewindow head: 8b6d8d00a46a12a4baa08d547d4231e50a558254 commit: d8703554f4dea9775417525b22b3d65ed1c6b16e [42/58] i2c: qcom-geni: Add support for GPI DMA :::::: branch date: 3 days ago :::::: commit date: 13 days ago config: arm-randconfig-c002-20220313 (https://download.01.org/0day-ci/archive/20220314/202203141801.swjcpicw-...@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0467eb2cb7654c15ae366967ef35093c5724c416) 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/wsa/linux.git/commit/?id=d8703554f4dea9775417525b22b3d65ed1c6b16e git remote add wsa https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git git fetch --no-tags wsa i2c/for-mergewindow git checkout d8703554f4dea9775417525b22b3d65ed1c6b16e # 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 <l...@intel.com> clang-analyzer warnings: (new ones prefixed by >>) ^~~~~~~~~~~ drivers/i2c/busses/i2c-qcom-geni.c:592:3: note: Taking false branch if (i < num - 1) ^ drivers/i2c/busses/i2c-qcom-geni.c:597:7: note: Assuming the condition is false if (msgs[i].flags & I2C_M_RD) { ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/i2c/busses/i2c-qcom-geni.c:597:3: note: Taking false branch if (msgs[i].flags & I2C_M_RD) { ^ drivers/i2c/busses/i2c-qcom-geni.c:604:10: note: Calling 'geni_i2c_gpi' ret = geni_i2c_gpi(gi2c, &msgs[i], &config, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/i2c/busses/i2c-qcom-geni.c:512:6: note: Assuming 'dma_buf' is non-null if (!dma_buf) ^~~~~~~~ drivers/i2c/busses/i2c-qcom-geni.c:512:2: note: Taking false branch if (!dma_buf) ^ drivers/i2c/busses/i2c-qcom-geni.c:515:6: note: 'op' is equal to I2C_WRITE if (op == I2C_WRITE) ^~ drivers/i2c/busses/i2c-qcom-geni.c:515:2: note: Taking true branch if (op == I2C_WRITE) ^ drivers/i2c/busses/i2c-qcom-geni.c:521:2: note: Taking false branch if (dma_mapping_error(gi2c->se.dev->parent, addr)) { ^ drivers/i2c/busses/i2c-qcom-geni.c:531:6: note: Assuming 'ret' is 0 if (ret) { ^~~ drivers/i2c/busses/i2c-qcom-geni.c:531:2: note: Taking false branch if (ret) { ^ drivers/i2c/busses/i2c-qcom-geni.c:540:6: note: 'op' is equal to I2C_WRITE if (op == I2C_WRITE) ^~ drivers/i2c/busses/i2c-qcom-geni.c:540:2: note: Taking true branch if (op == I2C_WRITE) ^ drivers/i2c/busses/i2c-qcom-geni.c:546:6: note: Assuming 'desc' is non-null if (!desc) { ^~~~~ drivers/i2c/busses/i2c-qcom-geni.c:546:2: note: Taking false branch if (!desc) { ^ drivers/i2c/busses/i2c-qcom-geni.c:558:2: note: Returning zero, which participates in a condition later return 0; ^~~~~~~~ drivers/i2c/busses/i2c-qcom-geni.c:604:10: note: Returning from 'geni_i2c_gpi' ret = geni_i2c_gpi(gi2c, &msgs[i], &config, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/i2c/busses/i2c-qcom-geni.c:606:7: note: 'ret' is 0 if (ret) ^~~ drivers/i2c/busses/i2c-qcom-geni.c:606:3: note: Taking false branch if (ret) ^ drivers/i2c/busses/i2c-qcom-geni.c:609:7: note: Assuming the condition is false if (msgs[i].flags & I2C_M_RD) ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/i2c/busses/i2c-qcom-geni.c:609:3: note: Taking false branch if (msgs[i].flags & I2C_M_RD) ^ drivers/i2c/busses/i2c-qcom-geni.c:614:7: note: Assuming 'timeout' is not equal to 0 if (!timeout) { ^~~~~~~~ drivers/i2c/busses/i2c-qcom-geni.c:614:3: note: Taking false branch if (!timeout) { ^ drivers/i2c/busses/i2c-qcom-geni.c:621:7: note: Assuming field 'err' is not equal to 0 if (gi2c->err) { ^~~~~~~~~ drivers/i2c/busses/i2c-qcom-geni.c:621:3: note: Taking true branch if (gi2c->err) { ^ drivers/i2c/busses/i2c-qcom-geni.c:623:4: note: Control jumps to line 632 goto err; ^ drivers/i2c/busses/i2c-qcom-geni.c:632:2: note: Loop condition is false. Exiting loop dev_err(gi2c->se.dev, "GPI transfer failed: %d\n", ret); ^ include/linux/dev_printk.h:144:2: note: expanded from macro 'dev_err' dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__) ^ include/linux/dev_printk.h:109:3: note: expanded from macro 'dev_printk_index_wrap' dev_printk_index_emit(level, fmt); \ ^ include/linux/dev_printk.h:105:2: note: expanded from macro 'dev_printk_index_emit' printk_index_subsys_emit("%s %s: ", level, fmt) ^ include/linux/printk.h:413:2: note: expanded from macro 'printk_index_subsys_emit' __printk_index_emit(fmt, level, subsys_fmt_prefix) ^ include/linux/printk.h:392:34: note: expanded from macro '__printk_index_emit' #define __printk_index_emit(...) do {} while (0) ^ drivers/i2c/busses/i2c-qcom-geni.c:635:2: note: 6th function call argument is an uninitialized value geni_i2c_gpi_unmap(gi2c, &msgs[i], tx_buf, tx_addr, rx_buf, rx_addr); ^ ~~~~~~~ >> drivers/i2c/busses/i2c-qcom-geni.c:683:3: warning: Value stored to 'ret' is >> never read [clang-analyzer-deadcode.DeadStores] ret = geni_i2c_gpi_xfer(gi2c, msgs, num); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/i2c/busses/i2c-qcom-geni.c:683:3: note: Value stored to 'ret' is never read ret = geni_i2c_gpi_xfer(gi2c, msgs, num); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/i2c/busses/i2c-qcom-geni.c:685:3: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores] ret = geni_i2c_fifo_xfer(gi2c, msgs, num); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/i2c/busses/i2c-qcom-geni.c:685:3: note: Value stored to 'ret' is never read ret = geni_i2c_fifo_xfer(gi2c, msgs, num); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. drivers/clocksource/sh_mtu2.c:364:26: warning: The right operand of '+' is a garbage value due to array index out of bounds [clang-analyzer-core.UndefinedBinaryOperatorResult] ch->base = mtu->mapbase + sh_mtu2_channel_offsets[index]; ^ drivers/clocksource/sh_mtu2.c:455:2: note: Taking true branch if (!is_sh_early_platform_device(pdev)) { ^ drivers/clocksource/sh_mtu2.c:460:6: note: Assuming 'mtu' is null if (mtu) { ^~~ drivers/clocksource/sh_mtu2.c:460:2: note: Taking false branch if (mtu) { ^ drivers/clocksource/sh_mtu2.c:466:6: note: Assuming 'mtu' is not equal to NULL if (mtu == NULL) ^~~~~~~~~~~ drivers/clocksource/sh_mtu2.c:466:2: note: Taking false branch if (mtu == NULL) ^ drivers/clocksource/sh_mtu2.c:469:8: note: Calling 'sh_mtu2_setup' ret = sh_mtu2_setup(mtu, pdev); ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/clocksource/sh_mtu2.c:395:2: note: Loop condition is false. Exiting loop raw_spin_lock_init(&mtu->lock); ^ include/linux/spinlock.h:102:39: note: expanded from macro 'raw_spin_lock_init' # define raw_spin_lock_init(lock) \ ^ drivers/clocksource/sh_mtu2.c:399:6: note: Calling 'IS_ERR' if (IS_ERR(mtu->clk)) { ^~~~~~~~~~~~~~~~ include/linux/err.h:36:9: note: Assuming the condition is false return IS_ERR_VALUE((unsigned long)ptr); ^ include/linux/err.h:22:34: note: expanded from macro 'IS_ERR_VALUE' #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:78:42: note: expanded from macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ include/linux/err.h:36:2: note: Returning zero, which participates in a condition later return IS_ERR_VALUE((unsigned long)ptr); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/clocksource/sh_mtu2.c:399:6: note: Returning from 'IS_ERR' if (IS_ERR(mtu->clk)) { ^~~~~~~~~~~~~~~~ drivers/clocksource/sh_mtu2.c:399:2: note: Taking false branch if (IS_ERR(mtu->clk)) { ^ drivers/clocksource/sh_mtu2.c:405:6: note: Assuming 'ret' is >= 0 if (ret < 0) ^~~~~~~ drivers/clocksource/sh_mtu2.c:405:2: note: Taking false branch if (ret < 0) ^ drivers/clocksource/sh_mtu2.c:410:6: note: 'ret' is >= 0 if (ret < 0) { ^~~ drivers/clocksource/sh_mtu2.c:410:2: note: Taking false branch if (ret < 0) { ^ drivers/clocksource/sh_mtu2.c:417:6: note: Assuming 'ret' is >= 0 if (ret < 0) ^~~~~~~ drivers/clocksource/sh_mtu2.c:417:2: note: Taking false branch if (ret < 0) ^ drivers/clocksource/sh_mtu2.c:420:22: note: Assuming '__UNIQUE_ID___x179' is >= '__UNIQUE_ID___y180' mtu->num_channels = min_t(unsigned int, ret, ^ include/linux/minmax.h:104:27: note: expanded from macro 'min_t' #define min_t(type, x, y) __careful_cmp((type)(x), (type)(y), <) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:38:3: note: expanded from macro '__careful_cmp' __cmp_once(x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y), op)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:33:3: note: expanded from macro '__cmp_once' __cmp(unique_x, unique_y, op); }) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:28:26: note: expanded from macro '__cmp' #define __cmp(x, y, op) ((x) op (y) ? (x) : (y)) ^~~~~~~~~~ drivers/clocksource/sh_mtu2.c:420:22: note: '?' condition is false mtu->num_channels = min_t(unsigned int, ret, ^ include/linux/minmax.h:104:27: note: expanded from macro 'min_t' #define min_t(type, x, y) __careful_cmp((type)(x), (type)(y), <) vim +/ret +683 drivers/i2c/busses/i2c-qcom-geni.c d8703554f4dea9 Vinod Koul 2022-02-21 661 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 662 static int geni_i2c_xfer(struct i2c_adapter *adap, 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 663 struct i2c_msg msgs[], 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 664 int num) 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 665 { 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 666 struct geni_i2c_dev *gi2c = i2c_get_adapdata(adap); d8703554f4dea9 Vinod Koul 2022-02-21 667 int ret; 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 668 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 669 gi2c->err = 0; 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 670 reinit_completion(&gi2c->done); 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 671 ret = pm_runtime_get_sync(gi2c->se.dev); 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 672 if (ret < 0) { 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 673 dev_err(gi2c->se.dev, "error turning SE resources:%d\n", ret); 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 674 pm_runtime_put_noidle(gi2c->se.dev); 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 675 /* Set device in suspended since resume failed */ 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 676 pm_runtime_set_suspended(gi2c->se.dev); 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 677 return ret; 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 678 } 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 679 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 680 qcom_geni_i2c_conf(gi2c); 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 681 d8703554f4dea9 Vinod Koul 2022-02-21 682 if (gi2c->gpi_mode) d8703554f4dea9 Vinod Koul 2022-02-21 @683 ret = geni_i2c_gpi_xfer(gi2c, msgs, num); 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 684 else d8703554f4dea9 Vinod Koul 2022-02-21 685 ret = geni_i2c_fifo_xfer(gi2c, msgs, num); 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 686 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 687 pm_runtime_mark_last_busy(gi2c->se.dev); 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 688 pm_runtime_put_autosuspend(gi2c->se.dev); 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 689 gi2c->cur = NULL; 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 690 gi2c->err = 0; d8703554f4dea9 Vinod Koul 2022-02-21 691 return num; 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 692 } 37692de5d52353 Karthikeyan Ramasubramanian 2018-07-30 693 --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
