diff options
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_file_ops.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index 1af1f3a907c6..ceab52c09cdb 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -223,8 +223,13 @@ static int ipath_get_base_info(struct file *fp, (unsigned long long) kinfo->spi_subport_rcvhdr_base); } - kinfo->spi_pioindex = (kinfo->spi_piobufbase - dd->ipath_piobufbase) / - dd->ipath_palign; + /* + * All user buffers are 2KB buffers. If we ever support + * giving 4KB buffers to user processes, this will need some + * work. + */ + kinfo->spi_pioindex = (kinfo->spi_piobufbase - + (dd->ipath_piobufbase & 0xffffffff)) / dd->ipath_palign; kinfo->spi_pioalign = dd->ipath_palign; kinfo->spi_qpair = IPATH_KD_QP; |