4.9-stable review patch. If anyone has any objections, please let me know.
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From: Steve Wise swise@opengridcomputing.com
commit 7b72717a20bba8bdd01b14c0460be7d15061cd6b upstream.
The code was mistakenly using the length of the page array memory instead of the depth of the page array.
This would cause MR creation to fail in some cases.
Fixes: 8376b86de7d3 ("iw_cxgb4: Support the new memory registration API") Cc: stable@vger.kernel.org Signed-off-by: Steve Wise swise@opengridcomputing.com Signed-off-by: Jason Gunthorpe jgg@mellanox.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/infiniband/hw/cxgb4/mem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/infiniband/hw/cxgb4/mem.c +++ b/drivers/infiniband/hw/cxgb4/mem.c @@ -724,7 +724,7 @@ static int c4iw_set_page(struct ib_mr *i { struct c4iw_mr *mhp = to_c4iw_mr(ibmr);
- if (unlikely(mhp->mpl_len == mhp->max_mpl_len)) + if (unlikely(mhp->mpl_len == mhp->attr.pbl_size)) return -ENOMEM;
mhp->mpl[mhp->mpl_len++] = addr;