This patch fixes sparse complaining about the removal of __iomem address space when casting the return value of this function ioremap_cache(...) from `void __ioremap*` to `void*`.
I think there are two way of fixing it, first one is changing the datatype of variable `ghcb_va` from `void*` to `void __iomem*` . Second way of fixing it is using the memremap(...) which is done in this patch. Signed-off-by: Abhinav Singh <[email protected]> --- arch/x86/hyperv/hv_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c index 21556ad87f4b..c14161add274 100644 --- a/arch/x86/hyperv/hv_init.c +++ b/arch/x86/hyperv/hv_init.c @@ -70,7 +70,7 @@ static int hyperv_init_ghcb(void) /* Mask out vTOM bit. ioremap_cache() maps decrypted */ ghcb_gpa &= ~ms_hyperv.shared_gpa_boundary; - ghcb_va = (void *)ioremap_cache(ghcb_gpa, HV_HYP_PAGE_SIZE); + ghcb_va = memremap(ghcb_gpa, HV_HYP_PAGE_SIZE, MEMREMAP_WB); if (!ghcb_va) return -ENOMEM; -- 2.39.2
