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RDMA/odp: Add missing cast for 32 bit 

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: 204e3e5630 ("RDMA/odp: Check for overflow when computing the umem_odp end")
Link: https://lore.kernel.org/r/20190908080726.30017-1-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Jason Gunthorpe 2019-09-08 11:07:26 +03:00
parent 3b961b4f83
commit b97b218b30
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/core/umem_odp.c
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@ -293,7 +293,7 @@ static inline int ib_init_umem_odp(struct ib_umem_odp *umem_odp,
umem_odp->interval_tree.start = umem_odp->interval_tree.start =
ALIGN_DOWN(umem_odp->umem.address, page_size); ALIGN_DOWN(umem_odp->umem.address, page_size);
if (check_add_overflow(umem_odp->umem.address, if (check_add_overflow(umem_odp->umem.address,
umem_odp->umem.length, (unsigned long)umem_odp->umem.length,
&umem_odp->interval_tree.last)) &umem_odp->interval_tree.last))
return -EOVERFLOW; return -EOVERFLOW;
umem_odp->interval_tree.last = umem_odp->interval_tree.last =