Messages in this thread | | | From | Parav Pandit <> | Subject | RE: [PATCH -next] RDMA/core: Properly return the error code of rdma_set_src_addr_rcu | Date | Wed, 19 Sep 2018 13:47:09 +0000 |
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> -----Original Message----- > From: YueHaibing <yuehaibing@huawei.com> > Sent: Wednesday, September 19, 2018 7:29 AM > To: dledford@redhat.com; jgg@ziepe.ca; leon@kernel.org; Parav Pandit > <parav@mellanox.com>; Daniel Jurgens <danielj@mellanox.com> > Cc: linux-kernel@vger.kernel.org; linux-rdma@vger.kernel.org; YueHaibing > <yuehaibing@huawei.com> > Subject: [PATCH -next] RDMA/core: Properly return the error code of > rdma_set_src_addr_rcu > > rdma_set_src_addr_rcu should check copy_src_l2_addr fails, rather than > always return 0. Also copy_src_l2_addr should return 'ret' as its return value > while rdma_translate_ip fails. > > Fixes: c31d4b2ddf07 ("RDMA/core: Protect against changing dst->dev during > destination resolve") > Signed-off-by: YueHaibing <yuehaibing@huawei.com> > --- > drivers/infiniband/core/addr.c | 9 ++++++--- > 1 file changed, 6 insertions(+), 3 deletions(-) > > diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c > index 7a0356c..8a31b11 100644 > --- a/drivers/infiniband/core/addr.c > +++ b/drivers/infiniband/core/addr.c > @@ -468,7 +468,7 @@ static int addr_resolve_neigh(const struct dst_entry > *dst, > return ret; > } > > -static void copy_src_l2_addr(struct rdma_dev_addr *dev_addr, > +static int copy_src_l2_addr(struct rdma_dev_addr *dev_addr, > const struct sockaddr *dst_in, > const struct dst_entry *dst, > const struct net_device *ndev) > @@ -492,6 +492,8 @@ static void copy_src_l2_addr(struct rdma_dev_addr > *dev_addr, > RDMA_NETWORK_IPV6; > else > dev_addr->network = RDMA_NETWORK_IB; > + > + return ret; > } > > static int rdma_set_src_addr_rcu(struct rdma_dev_addr *dev_addr, @@ - > 499,6 +501,7 @@ static int rdma_set_src_addr_rcu(struct rdma_dev_addr > *dev_addr, > const struct sockaddr *dst_in, > const struct dst_entry *dst) > { > + int ret; > struct net_device *ndev = READ_ONCE(dst->dev); > > *ndev_flags = ndev->flags; > @@ -515,8 +518,8 @@ static int rdma_set_src_addr_rcu(struct > rdma_dev_addr *dev_addr, > return -ENODEV; > } > > - copy_src_l2_addr(dev_addr, dst_in, dst, ndev); > - return 0; > + ret = copy_src_l2_addr(dev_addr, dst_in, dst, ndev); > + return ret; > } > > static int set_addr_netns_by_gid_rcu(struct rdma_dev_addr *addr) > -- > 2.7.0 > Reviewed-by: Parav Pandit <parav@mellanox.com>
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