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 5.16-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-5.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ee83f5e9b98b48bf2e2ff7384595b3fb93ddccd2
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,
