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Subjectdrivers/dma/at_hdmac.c:240: warning: Excess struct member 'sg_len' description in 'at_desc'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c7402612e2e61b76177f22e6e7f705adcbecc6fe
commit: ac803b56860f6506c55a3c9330007837e3f4edda dmaengine: at_hdmac: Convert driver to use virt-dma
date: 1 year, 1 month ago
config: arm-defconfig (https://download.01.org/0day-ci/archive/20231215/202312150931.ptq0FuhB-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231215/202312150931.ptq0FuhB-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312150931.ptq0FuhB-lkp@intel.com/

All warnings (new ones prefixed by >>):

drivers/dma/at_hdmac.c:240: warning: Function parameter or member 'sglen' not described in 'at_desc'
drivers/dma/at_hdmac.c:240: warning: Function parameter or member 'boundary' not described in 'at_desc'
drivers/dma/at_hdmac.c:240: warning: Function parameter or member 'dst_hole' not described in 'at_desc'
drivers/dma/at_hdmac.c:240: warning: Function parameter or member 'src_hole' not described in 'at_desc'
drivers/dma/at_hdmac.c:240: warning: Function parameter or member 'memset_buffer' not described in 'at_desc'
drivers/dma/at_hdmac.c:240: warning: Function parameter or member 'memset_paddr' not described in 'at_desc'
drivers/dma/at_hdmac.c:240: warning: Function parameter or member 'memset_vaddr' not described in 'at_desc'
>> drivers/dma/at_hdmac.c:240: warning: Excess struct member 'sg_len' description in 'at_desc'
drivers/dma/at_hdmac.c:249: warning: cannot understand function prototype: 'enum atc_status '
drivers/dma/at_hdmac.c:284: warning: Function parameter or member 'cyclic' not described in 'at_dma_chan'
drivers/dma/at_hdmac.c:348: warning: Function parameter or member 'regs' not described in 'at_dma'
drivers/dma/at_hdmac.c:348: warning: Function parameter or member 'memset_pool' not described in 'at_dma'
drivers/dma/at_hdmac.c:348: warning: Excess struct member 'atdma_devtype' description in 'at_dma'
drivers/dma/at_hdmac.c:348: warning: Excess struct member 'ch_regs' description in 'at_dma'


vim +240 drivers/dma/at_hdmac.c

ac803b56860f65 Tudor Ambarus 2022-10-25 216
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 217 /**
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 218 * struct at_desc - software descriptor
ac803b56860f65 Tudor Ambarus 2022-10-25 219 * @vd: pointer to the virtual dma descriptor.
ac803b56860f65 Tudor Ambarus 2022-10-25 220 * @atchan: pointer to the atmel dma channel.
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 221 * @total_len: total transaction byte count
ac803b56860f65 Tudor Ambarus 2022-10-25 222 * @sg_len: number of sg entries.
ac803b56860f65 Tudor Ambarus 2022-10-25 223 * @sg: array of sgs.
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 224 */
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 225 struct at_desc {
ac803b56860f65 Tudor Ambarus 2022-10-25 226 struct virt_dma_desc vd;
ac803b56860f65 Tudor Ambarus 2022-10-25 227 struct at_dma_chan *atchan;
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 228 size_t total_len;
ac803b56860f65 Tudor Ambarus 2022-10-25 229 unsigned int sglen;
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 230 /* Interleaved data */
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 231 size_t boundary;
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 232 size_t dst_hole;
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 233 size_t src_hole;
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 234
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 235 /* Memset temporary buffer */
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 236 bool memset_buffer;
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 237 dma_addr_t memset_paddr;
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 238 int *memset_vaddr;
ac803b56860f65 Tudor Ambarus 2022-10-25 239 struct atdma_sg sg[];
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 @240 };
5cecadc3e2a4fb Tudor Ambarus 2022-10-25 241

:::::: The code at line 240 was first introduced by commit
:::::: 5cecadc3e2a4fb72ab37d9420df0a9e1179b8a3e dmaengine: at_hdmac: Keep register definitions and structures private to at_hdmac.c

:::::: TO: Tudor Ambarus <tudor.ambarus@microchip.com>
:::::: CC: Vinod Koul <vkoul@kernel.org>

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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