From: Xie Yongji xieyongji@bytedance.com
[ Upstream commit b9d102dafec6af1c07b610faf0a6d4e8aee14ae0 ]
This fixes the following smatch warnings:
drivers/vdpa/vdpa_user/iova_domain.c:305 vduse_domain_alloc_iova() warn: should 'iova_pfn << shift' be a 64 bit type?
Fixes: 8c773d53fb7b ("vduse: Implement an MMU-based software IOTLB") Reported-by: kernel test robot lkp@intel.com Reported-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Xie Yongji xieyongji@bytedance.com Link: https://lore.kernel.org/r/20220121083940.102-1-xieyongji@bytedance.com Signed-off-by: Michael S. Tsirkin mst@redhat.com Acked-by: Jason Wang jasowang@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/vdpa/vdpa_user/iova_domain.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/vdpa/vdpa_user/iova_domain.c b/drivers/vdpa/vdpa_user/iova_domain.c index 1daae2608860..0678c2514197 100644 --- a/drivers/vdpa/vdpa_user/iova_domain.c +++ b/drivers/vdpa/vdpa_user/iova_domain.c @@ -302,7 +302,7 @@ vduse_domain_alloc_iova(struct iova_domain *iovad, iova_len = roundup_pow_of_two(iova_len); iova_pfn = alloc_iova_fast(iovad, iova_len, limit >> shift, true);
- return iova_pfn << shift; + return (dma_addr_t)iova_pfn << shift; }
static void vduse_domain_free_iova(struct iova_domain *iovad,