diff options
| author |   Artemy Kovalyov <artemyko@mellanox.com> | 2017-11-14 14:51:59 +0200 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2017-12-18 15:37:06 -0700 |
| commit | edf1a84fe37c51290e2c88154ecaf48dadff3d27 (patch) | |
| tree | 85766506d676f9ed35d36127ad773d46f7011fec | |
| parent | IB/cm: Add debug prints to ib_cm (diff) | |
| download | linux-dev-edf1a84fe37c51290e2c88154ecaf48dadff3d27.tar.xz linux-dev-edf1a84fe37c51290e2c88154ecaf48dadff3d27.zip | |
IB/umem: Fix use of npages/nmap fields
In ib_umem structure npages holds original number of sg entries, while
nmap is number of DMA blocks returned by dma_map_sg.
Fixes: c5d76f130b28 ('IB/core: Add umem function to read data from user-space')
Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
| -rw-r--r-- | drivers/infiniband/core/umem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c index 130606c3b07c..9a4e899d94b3 100644 --- a/drivers/infiniband/core/umem.c +++ b/drivers/infiniband/core/umem.c @@ -352,7 +352,7 @@ int ib_umem_copy_from(void *dst, struct ib_umem *umem, size_t offset, return -EINVAL; } - ret = sg_pcopy_to_buffer(umem->sg_head.sgl, umem->nmap, dst, length, + ret = sg_pcopy_to_buffer(umem->sg_head.sgl, umem->npages, dst, length, offset + ib_umem_offset(umem)); if (ret < 0) |