Hi Akhil, Thank you for the patch! Yet something to improve: [auto build test ERROR on robh/for-next] [also build test ERROR on vkoul-dmaengine/next arm64/for-next/core v5.14-rc7 next-20210827] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Akhil-R/dt-bindings-dmaengine-Add-doc-for-tegra-gpcdma/20210827-150504 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: arm-buildonly-randconfig-r005-20210827 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 1076082a0d97bd5c16a25ee7cf3dbb6ee4b5a9fe) 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://github.com/0day-ci/linux/commit/0cc2ab4a5b7f236155b7b7740b26589f0dac8e7c git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Akhil-R/dt-bindings-dmaengine-Add-doc-for-tegra-gpcdma/20210827-150504 git checkout 0cc2ab4a5b7f236155b7b7740b26589f0dac8e7c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All error/warnings (new ones prefixed by >>): >> drivers/dma/tegra-gpc-dma.c:543:9: error: implicit declaration of function 'FIELD_PREP' [-Werror,-Wimplicit-function-declaration] csr |= TEGRA_GPCDMA_CSR_REQ_SEL_UNUSED; ^ drivers/dma/tegra-gpc-dma.c:62:6: note: expanded from macro 'TEGRA_GPCDMA_CSR_REQ_SEL_UNUSED' FIELD_PREP(TEGRA_GPCDMA_CSR_REQ_SEL_MASK, 4) ^ drivers/dma/tegra-gpc-dma.c:671:10: error: implicit declaration of function 'FIELD_PREP' [-Werror,-Wimplicit-function-declaration] return TEGRA_GPCDMA_MMIOSEQ_BUS_WIDTH_8; ^ drivers/dma/tegra-gpc-dma.c:114:6: note: expanded from macro 'TEGRA_GPCDMA_MMIOSEQ_BUS_WIDTH_8' FIELD_PREP(TEGRA_GPCDMA_MMIOSEQ_BUS_WIDTH, 0) ^ drivers/dma/tegra-gpc-dma.c:688:9: error: implicit declaration of function 'FIELD_PREP' [-Werror,-Wimplicit-function-declaration] ret = TEGRA_GPCDMA_MMIOSEQ_BURST_1; ^ drivers/dma/tegra-gpc-dma.c:122:6: note: expanded from macro 'TEGRA_GPCDMA_MMIOSEQ_BURST_1' FIELD_PREP(TEGRA_GPCDMA_MMIOSEQ_BURST, 0) ^ drivers/dma/tegra-gpc-dma.c:726:9: error: implicit declaration of function 'FIELD_PREP' [-Werror,-Wimplicit-function-declaration] ret = TEGRA_GPCDMA_MMIOSEQ_BURST_1; ^ drivers/dma/tegra-gpc-dma.c:122:6: note: expanded from macro 'TEGRA_GPCDMA_MMIOSEQ_BURST_1' FIELD_PREP(TEGRA_GPCDMA_MMIOSEQ_BURST, 0) ^ drivers/dma/tegra-gpc-dma.c:759:10: error: implicit declaration of function 'FIELD_PREP' [-Werror,-Wimplicit-function-declaration] *csr = TEGRA_GPCDMA_CSR_DMA_MEM2IO_FC; ^ drivers/dma/tegra-gpc-dma.c:54:6: note: expanded from macro 'TEGRA_GPCDMA_CSR_DMA_MEM2IO_FC' FIELD_PREP(TEGRA_GPCDMA_CSR_DMA, 3) ^ drivers/dma/tegra-gpc-dma.c:789:8: error: implicit declaration of function 'FIELD_PREP' [-Werror,-Wimplicit-function-declaration] csr = TEGRA_GPCDMA_CSR_DMA_FIXED_PAT; ^ drivers/dma/tegra-gpc-dma.c:58:6: note: expanded from macro 'TEGRA_GPCDMA_CSR_DMA_FIXED_PAT' FIELD_PREP(TEGRA_GPCDMA_CSR_DMA, 6) ^ >> drivers/dma/tegra-gpc-dma.c:834:53: warning: shift count >= width of type [-Wshift-count-overflow] FIELD_PREP(TEGRA_GPCDMA_HIGH_ADDR_DST_PTR, (dest >> 32)); ^ ~~ drivers/dma/tegra-gpc-dma.c:859:8: error: implicit declaration of function 'FIELD_PREP' [-Werror,-Wimplicit-function-declaration] csr = TEGRA_GPCDMA_CSR_DMA_MEM2MEM; ^ drivers/dma/tegra-gpc-dma.c:56:6: note: expanded from macro 'TEGRA_GPCDMA_CSR_DMA_MEM2MEM' FIELD_PREP(TEGRA_GPCDMA_CSR_DMA, 4) ^ drivers/dma/tegra-gpc-dma.c:905:51: warning: shift count >= width of type [-Wshift-count-overflow] FIELD_PREP(TEGRA_GPCDMA_HIGH_ADDR_SRC_PTR, (src >> 32)); ^ ~~ drivers/dma/tegra-gpc-dma.c:907:52: warning: shift count >= width of type [-Wshift-count-overflow] FIELD_PREP(TEGRA_GPCDMA_HIGH_ADDR_DST_PTR, (dest >> 32)); ^ ~~ drivers/dma/tegra-gpc-dma.c:951:9: error: implicit declaration of function 'FIELD_PREP' [-Werror,-Wimplicit-function-declaration] csr |= FIELD_PREP(TEGRA_GPCDMA_CSR_REQ_SEL_MASK, tdc->slave_id); ^ drivers/dma/tegra-gpc-dma.c:1012:53: warning: shift count >= width of type [-Wshift-count-overflow] FIELD_PREP(TEGRA_GPCDMA_HIGH_ADDR_SRC_PTR, (mem >> 32)); ^ ~~ drivers/dma/tegra-gpc-dma.c:1017:53: warning: shift count >= width of type [-Wshift-count-overflow] FIELD_PREP(TEGRA_GPCDMA_HIGH_ADDR_DST_PTR, (mem >> 32)); ^ ~~ drivers/dma/tegra-gpc-dma.c:1128:13: error: implicit declaration of function 'FIELD_PREP' [-Werror,-Wimplicit-function-declaration] reg_val |= FIELD_PREP(TEGRA_GPCDMA_MCSEQ_STREAM_ID0_MASK, stream_id); ^ >> drivers/dma/tegra-gpc-dma.c:1322:21: warning: attribute declaration must precede definition [-Wignored-attributes] static const struct __maybe_unused dev_pm_ops tegra_dma_dev_pm_ops = { ^ include/linux/compiler_attributes.h:287:56: note: expanded from macro '__maybe_unused' #define __maybe_unused __attribute__((__unused__)) ^ include/linux/pm.h:277:8: note: previous definition is here struct dev_pm_ops { ^ 6 warnings and 9 errors generated. vim +/FIELD_PREP +543 drivers/dma/tegra-gpc-dma.c 537 538 static void tegra_dma_reset_client(struct tegra_dma_channel *tdc) 539 { 540 u32 csr = tdc_read(tdc, TEGRA_GPCDMA_CHAN_CSR); 541 542 csr &= ~(TEGRA_GPCDMA_CSR_REQ_SEL_MASK); > 543 csr |= TEGRA_GPCDMA_CSR_REQ_SEL_UNUSED; 544 tdc_write(tdc, TEGRA_GPCDMA_CHAN_CSR, csr); 545 } 546 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org