From: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
length is a size_t which is unsigned int on 32 bit:
../drivers/infiniband/core/umem_odp.c: In function 'ib_init_umem_odp':
../include/linux/overflow.h:59:15: warning: comparison of distinct pointer types lacks a cast
59 | (void) (&__a == &__b); \
| ^~
../drivers/infiniband/core/umem_odp.c:220:7: note: in expansion of macro 'check_add_overflow'
Fixes: 204e3e5630c5 ("RDMA/odp: Check for overflow when computing the umem_odp end")
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
drivers/infiniband/core/umem_odp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c
index 32fb0b579dec..bd01c77aeef0 100644
--- a/drivers/infiniband/core/umem_odp.c
+++ b/drivers/infiniband/core/umem_odp.c
@@ -293,7 +293,7 @@ static inline int ib_init_umem_odp(struct ib_umem_odp *umem_odp,
umem_odp->interval_tree.start =
ALIGN_DOWN(umem_odp->umem.address, page_size);
if (check_add_overflow(umem_odp->umem.address,
- umem_odp->umem.length,
+ (unsigned long)umem_odp->umem.length,
&umem_odp->interval_tree.last))
return -EOVERFLOW;
umem_odp->interval_tree.last =
--
2.20.1
