tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: cf6c9d12750cf6f3f6aeffcd0bdb36b1ac993f44 commit: ec0e5549f3586d2cb99a05edd006d722ebad912c [6467/10748] remoteproc: imx_dsp_rproc: Add remoteproc driver for DSP on i.MX config: arm-allyesconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0 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-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout ec0e5549f3586d2cb99a05edd006d722ebad912c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/remoteproc/imx_dsp_rproc.c:602:49: sparse: expected void *va drivers/remoteproc/imx_dsp_rproc.c:602:49: sparse: got void [noderef] __iomem *[assigned] cpu_addr drivers/remoteproc/imx_dsp_rproc.c:638:49: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void *va @@ got void [noderef] __iomem *[assigned] cpu_addr @@ drivers/remoteproc/imx_dsp_rproc.c:638:49: sparse: expected void *va drivers/remoteproc/imx_dsp_rproc.c:638:49: sparse: got void [noderef] __iomem *[assigned] cpu_addr vim +602 drivers/remoteproc/imx_dsp_rproc.c 563 564 /** 565 * imx_dsp_rproc_add_carveout() - request mailbox channels 566 * @priv: private data pointer 567 * 568 * This function registers specified memory entry in @rproc carveouts list 569 * The carveouts can help to mapping the memory address for DSP. 570 */ 571 static int imx_dsp_rproc_add_carveout(struct imx_dsp_rproc *priv) 572 { 573 const struct imx_dsp_rproc_dcfg *dsp_dcfg = priv->dsp_dcfg; 574 const struct imx_rproc_dcfg *dcfg = dsp_dcfg->dcfg; 575 struct rproc *rproc = priv->rproc; 576 struct device *dev = rproc->dev.parent; 577 struct device_node *np = dev->of_node; 578 struct of_phandle_iterator it; 579 struct rproc_mem_entry *mem; 580 struct reserved_mem *rmem; 581 void __iomem *cpu_addr; 582 int a; 583 u64 da; 584 585 /* Remap required addresses */ 586 for (a = 0; a < dcfg->att_size; a++) { 587 const struct imx_rproc_att *att = &dcfg->att[a]; 588 589 if (!(att->flags & ATT_OWN)) 590 continue; 591 592 if (imx_dsp_rproc_sys_to_da(priv, att->sa, att->size, &da)) 593 return -EINVAL; 594 595 cpu_addr = devm_ioremap_wc(dev, att->sa, att->size); 596 if (!cpu_addr) { 597 dev_err(dev, "failed to map memory %p\n", &att->sa); 598 return -ENOMEM; 599 } 600 601 /* Register memory region */ 603 att->size, da, NULL, NULL, "dsp_mem"); 604 605 if (mem) 606 rproc_coredump_add_segment(rproc, da, att->size); 607 else 608 return -ENOMEM; 609 610 rproc_add_carveout(rproc, mem); 611 } 612 613 of_phandle_iterator_init(&it, np, "memory-region", NULL, 0); 614 while (of_phandle_iterator_next(&it) == 0) { 615 /* 616 * Ignore the first memory region which will be used vdev buffer. 617 * No need to do extra handlings, rproc_add_virtio_dev will handle it. 618 */ 619 if (!strcmp(it.node->name, "vdev0buffer")) 620 continue; 621 622 rmem = of_reserved_mem_lookup(it.node); 623 if (!rmem) { 624 dev_err(dev, "unable to acquire memory-region\n"); 625 return -EINVAL; 626 } 627 628 if (imx_dsp_rproc_sys_to_da(priv, rmem->base, rmem->size, &da)) 629 return -EINVAL; 630 631 cpu_addr = devm_ioremap_wc(dev, rmem->base, rmem->size); 632 if (!cpu_addr) { 633 dev_err(dev, "failed to map memory %p\n", &rmem->base); 634 return -ENOMEM; 635 } 636 637 /* Register memory region */ 638 mem = rproc_mem_entry_init(dev, cpu_addr, (dma_addr_t)rmem->base, 639 rmem->size, da, NULL, NULL, it.node->name); 640 641 if (mem) 642 rproc_coredump_add_segment(rproc, da, rmem->size); 643 else 644 return -ENOMEM; 645 646 rproc_add_carveout(rproc, mem); 647 } 648 649 return 0; 650 } 651 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org