This is a note to let you know that I've just added the patch titled vduse: Fix returning wrong type in vduse_domain_alloc_iova() to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: vduse-fix-returning-wrong-type-in-vduse_domain_alloc.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 375aff0e79c31c7b0571ac8eab0df4de3b8331ec Author: Xie Yongji <xieyongji@xxxxxxxxxxxxx> Date: Fri Jan 21 16:39:39 2022 +0800 vduse: Fix returning wrong type in vduse_domain_alloc_iova() [ 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@xxxxxxxxx> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Signed-off-by: Xie Yongji <xieyongji@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220121083940.102-1-xieyongji@xxxxxxxxxxxxx Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx> Acked-by: Jason Wang <jasowang@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> 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,