[kbuild-all] drivers/remoteproc/imx_rproc.c:298:12: sparse: sparse: incorrect type in assignment (different address spaces)

Hi Peng, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 2585cf9dfaaddf00b069673f27bb3f8530e2039c commit: 2df7062002d0263bde70b453f671bb4f8493e169 remoteproc: imx_proc: enable virtio/mailbox date: 9 months ago config: arm-allyesconfig (https://download.01.org/0day-ci/archive/20211213/202112132256.jCxIHiiN-lk...) 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/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 2df7062002d0263bde70b453f671bb4f8493e169 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm SHELL=/bin/bash drivers/dma/ drivers/gpu/drm/tegra/ drivers/net/wireless/mediatek/mt76/mt7915/ drivers/remoteproc/ drivers/staging/ fs/proc/ 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_rproc.c:298:12: sparse: expected void *va drivers/remoteproc/imx_rproc.c:298:12: sparse: got void [noderef] __iomem * drivers/remoteproc/imx_rproc.c:315:20: sparse: expected void volatile [noderef] __iomem *iomem_cookie drivers/remoteproc/imx_rproc.c:315:20: sparse: got void *va vim +298 drivers/remoteproc/imx_rproc.c a0ff4aa6f01080 Oleksij Rempel 2017-08-17 290 b29b4249f8f0ca Peng Fan 2021-03-06 291 static int imx_rproc_mem_alloc(struct rproc *rproc, b29b4249f8f0ca Peng Fan 2021-03-06 292 struct rproc_mem_entry *mem) b29b4249f8f0ca Peng Fan 2021-03-06 293 { b29b4249f8f0ca Peng Fan 2021-03-06 294 struct device *dev = rproc->dev.parent; b29b4249f8f0ca Peng Fan 2021-03-06 295 void *va; b29b4249f8f0ca Peng Fan 2021-03-06 296 b29b4249f8f0ca Peng Fan 2021-03-06 297 dev_dbg(dev, "map memory: %p+%zx\n", &mem->dma, mem->len); b29b4249f8f0ca Peng Fan 2021-03-06 @298 va = ioremap_wc(mem->dma, mem->len); b29b4249f8f0ca Peng Fan 2021-03-06 299 if (IS_ERR_OR_NULL(va)) { b29b4249f8f0ca Peng Fan 2021-03-06 300 dev_err(dev, "Unable to map memory region: %p+%zx\n", b29b4249f8f0ca Peng Fan 2021-03-06 301 &mem->dma, mem->len); b29b4249f8f0ca Peng Fan 2021-03-06 302 return -ENOMEM; b29b4249f8f0ca Peng Fan 2021-03-06 303 } b29b4249f8f0ca Peng Fan 2021-03-06 304 b29b4249f8f0ca Peng Fan 2021-03-06 305 /* Update memory entry va */ b29b4249f8f0ca Peng Fan 2021-03-06 306 mem->va = va; b29b4249f8f0ca Peng Fan 2021-03-06 307 b29b4249f8f0ca Peng Fan 2021-03-06 308 return 0; b29b4249f8f0ca Peng Fan 2021-03-06 309 } b29b4249f8f0ca Peng Fan 2021-03-06 310 b29b4249f8f0ca Peng Fan 2021-03-06 311 static int imx_rproc_mem_release(struct rproc *rproc, b29b4249f8f0ca Peng Fan 2021-03-06 312 struct rproc_mem_entry *mem) b29b4249f8f0ca Peng Fan 2021-03-06 313 { b29b4249f8f0ca Peng Fan 2021-03-06 314 dev_dbg(rproc->dev.parent, "unmap memory: %pa\n", &mem->dma); b29b4249f8f0ca Peng Fan 2021-03-06 @315 iounmap(mem->va); b29b4249f8f0ca Peng Fan 2021-03-06 316 b29b4249f8f0ca Peng Fan 2021-03-06 317 return 0; b29b4249f8f0ca Peng Fan 2021-03-06 318 } b29b4249f8f0ca Peng Fan 2021-03-06 319 :::::: The code at line 298 was first introduced by commit :::::: b29b4249f8f0cad1a1787cbe59e638ff23d489ed remoteproc: imx_rproc: add i.MX specific parse fw hook :::::: TO: Peng Fan <peng.fan(a)nxp.com&gt; :::::: CC: Bjorn Andersson <bjorn.andersson(a)linaro.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org