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charset=us-ascii Content-Disposition: inline Hi Peng, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: df87d843c6eb4dad31b7bf63614549dd3521fe71 commit: 40df0a91b2a5228ded8e5f75b80d28c96c6831cd remoteproc: add is_iomem to da_to_va date: 4 years ago config: arm-randconfig-c041-20230507 (https://download.01.org/0day-ci/archive/20250302/202503020637.6SBId7IR-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 12.4.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250302/202503020637.6SBId7IR-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202503020637.6SBId7IR-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/remoteproc/omap_remoteproc.c:732: warning: Function parameter or struct member 'is_iomem' not described in 'omap_rproc_da_to_va' vim +732 drivers/remoteproc/omap_remoteproc.c 34ed5a33b1218e Ohad Ben-Cohen 2011-10-20 716 530a1b57e8590f Suman Anna 2020-03-24 717 /** 530a1b57e8590f Suman Anna 2020-03-24 718 * omap_rproc_da_to_va() - internal memory translation helper 530a1b57e8590f Suman Anna 2020-03-24 719 * @rproc: remote processor to apply the address translation for 530a1b57e8590f Suman Anna 2020-03-24 720 * @da: device address to translate 530a1b57e8590f Suman Anna 2020-03-24 721 * @len: length of the memory buffer 530a1b57e8590f Suman Anna 2020-03-24 722 * 530a1b57e8590f Suman Anna 2020-03-24 723 * Custom function implementing the rproc .da_to_va ops to provide address 530a1b57e8590f Suman Anna 2020-03-24 724 * translation (device address to kernel virtual address) for internal RAMs 530a1b57e8590f Suman Anna 2020-03-24 725 * present in a DSP or IPU device). The translated addresses can be used 530a1b57e8590f Suman Anna 2020-03-24 726 * either by the remoteproc core for loading, or by any rpmsg bus drivers. 530a1b57e8590f Suman Anna 2020-03-24 727 * 530a1b57e8590f Suman Anna 2020-03-24 728 * Return: translated virtual address in kernel memory space on success, 530a1b57e8590f Suman Anna 2020-03-24 729 * or NULL on failure. 530a1b57e8590f Suman Anna 2020-03-24 730 */ 40df0a91b2a522 Peng Fan 2021-03-06 731 static void *omap_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem) 530a1b57e8590f Suman Anna 2020-03-24 @732 { 530a1b57e8590f Suman Anna 2020-03-24 733 struct omap_rproc *oproc = rproc->priv; 530a1b57e8590f Suman Anna 2020-03-24 734 int i; 530a1b57e8590f Suman Anna 2020-03-24 735 u32 offset; 530a1b57e8590f Suman Anna 2020-03-24 736 530a1b57e8590f Suman Anna 2020-03-24 737 if (len <= 0) 530a1b57e8590f Suman Anna 2020-03-24 738 return NULL; 530a1b57e8590f Suman Anna 2020-03-24 739 530a1b57e8590f Suman Anna 2020-03-24 740 if (!oproc->num_mems) 530a1b57e8590f Suman Anna 2020-03-24 741 return NULL; 530a1b57e8590f Suman Anna 2020-03-24 742 530a1b57e8590f Suman Anna 2020-03-24 743 for (i = 0; i < oproc->num_mems; i++) { 530a1b57e8590f Suman Anna 2020-03-24 744 if (da >= oproc->mem[i].dev_addr && da + len <= 530a1b57e8590f Suman Anna 2020-03-24 745 oproc->mem[i].dev_addr + oproc->mem[i].size) { 530a1b57e8590f Suman Anna 2020-03-24 746 offset = da - oproc->mem[i].dev_addr; 530a1b57e8590f Suman Anna 2020-03-24 747 /* __force to make sparse happy with type conversion */ 530a1b57e8590f Suman Anna 2020-03-24 748 return (__force void *)(oproc->mem[i].cpu_addr + 530a1b57e8590f Suman Anna 2020-03-24 749 offset); 530a1b57e8590f Suman Anna 2020-03-24 750 } 530a1b57e8590f Suman Anna 2020-03-24 751 } 530a1b57e8590f Suman Anna 2020-03-24 752 530a1b57e8590f Suman Anna 2020-03-24 753 return NULL; 530a1b57e8590f Suman Anna 2020-03-24 754 } 530a1b57e8590f Suman Anna 2020-03-24 755 :::::: The code at line 732 was first introduced by commit :::::: 530a1b57e8590f2ebbb6a35effa0efa988aabf6c remoteproc/omap: Add the rproc ops .da_to_va() implementation :::::: TO: Suman Anna :::::: CC: Bjorn Andersson -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki