Hi Yu, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on v6.3-rc3] [also build test WARNING on linus/master] [cannot apply to remoteproc/rproc-next next-20230324] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Yu-Zhe/remoteproc-remove-unnecessary-void-conversions/20230320-141403 patch link: https://lore.kernel.org/r/20230320061157.29660-1-yuzhe%40nfschina.com patch subject: [PATCH v2] remoteproc: remove unnecessary (void*) conversions config: arm-randconfig-s053-20230326 (https://download.01.org/0day-ci/archive/20230326/202303261950.I6rq9snr-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/38335303eda6c4de037cd00e20c9065a76f82291 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Yu-Zhe/remoteproc-remove-unnecessary-void-conversions/20230320-141403 git checkout 38335303eda6c4de037cd00e20c9065a76f82291 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm SHELL=/bin/bash drivers/remoteproc/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303261950.I6rq9snr-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) drivers/remoteproc/stm32_rproc.c:122:12: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *va @@ got void [noderef] __iomem * @@ drivers/remoteproc/stm32_rproc.c:122:12: sparse: expected void *va drivers/remoteproc/stm32_rproc.c:122:12: sparse: got void [noderef] __iomem * drivers/remoteproc/stm32_rproc.c:139:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *io_addr @@ got void *va @@ drivers/remoteproc/stm32_rproc.c:139:20: sparse: expected void volatile [noderef] __iomem *io_addr drivers/remoteproc/stm32_rproc.c:139:20: sparse: got void *va >> drivers/remoteproc/stm32_rproc.c:632:21: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected struct resource_table * @@ got void [noderef] __iomem *rsc_va @@ drivers/remoteproc/stm32_rproc.c:632:21: sparse: expected struct resource_table * drivers/remoteproc/stm32_rproc.c:632:21: sparse: got void [noderef] __iomem *rsc_va vim +632 drivers/remoteproc/stm32_rproc.c 588 589 static struct resource_table * 590 stm32_rproc_get_loaded_rsc_table(struct rproc *rproc, size_t *table_sz) 591 { 592 struct stm32_rproc *ddata = rproc->priv; 593 struct device *dev = rproc->dev.parent; 594 phys_addr_t rsc_pa; 595 u32 rsc_da; 596 int err; 597 598 /* The resource table has already been mapped, nothing to do */ 599 if (ddata->rsc_va) 600 goto done; 601 602 err = regmap_read(ddata->rsctbl.map, ddata->rsctbl.reg, &rsc_da); 603 if (err) { 604 dev_err(dev, "failed to read rsc tbl addr\n"); 605 return ERR_PTR(-EINVAL); 606 } 607 608 if (!rsc_da) 609 /* no rsc table */ 610 return ERR_PTR(-ENOENT); 611 612 err = stm32_rproc_da_to_pa(rproc, rsc_da, &rsc_pa); 613 if (err) 614 return ERR_PTR(err); 615 616 ddata->rsc_va = devm_ioremap_wc(dev, rsc_pa, RSC_TBL_SIZE); 617 if (IS_ERR_OR_NULL(ddata->rsc_va)) { 618 dev_err(dev, "Unable to map memory region: %pa+%zx\n", 619 &rsc_pa, RSC_TBL_SIZE); 620 ddata->rsc_va = NULL; 621 return ERR_PTR(-ENOMEM); 622 } 623 624 done: 625 /* 626 * Assuming the resource table fits in 1kB is fair. 627 * Notice for the detach, that this 1 kB memory area has to be reserved in the coprocessor 628 * firmware for the resource table. On detach, the remoteproc core re-initializes this 629 * entire area by overwriting it with the initial values stored in rproc->clean_table. 630 */ 631 *table_sz = RSC_TBL_SIZE; > 632 return ddata->rsc_va; 633 } 634 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
