@@ -120,7 +120,7 @@ static int stm32_rproc_mem_alloc(struct rproc *rproc,
void *va;
dev_dbg(dev, "map memory: %pad+%zx\n", &mem->dma, mem->len);
- va = ioremap_wc(mem->dma, mem->len);
+ va = (__force void *)ioremap_wc(mem->dma, mem->len);
if (IS_ERR_OR_NULL(va)) {
dev_err(dev, "Unable to map memory region: %pad+0x%zx\n",
&mem->dma, mem->len);
@@ -137,7 +137,7 @@ static int stm32_rproc_mem_release(struct rproc *rproc,
struct rproc_mem_entry *mem)
{
dev_dbg(rproc->dev.parent, "unmap memory: %pa\n", &mem->dma);
- iounmap(mem->va);
+ iounmap((__force __iomem void *)mem->va);
return 0;
}
The sparse tool complains about the attribute conversion between a _iomem void * and a void *: stm32_rproc.c:122:12: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *va @@ got void [noderef] __iomem * @@ stm32_rproc.c:122:12: sparse: expected void *va stm32_rproc.c:122:12: sparse: got void [noderef] __iomem * Add '__force' to explicitly specify that the cast is intentional. This conversion is necessary to cast to virtual addresses pointer,used, by the remoteproc core. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202312150052.HCiNKlqB-lkp@intel.com/ Fixes: 13140de09cc2 ("remoteproc: stm32: add an ST stm32_rproc driver") Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com> --- drivers/remoteproc/stm32_rproc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)