Commit 8d8337ac authored by Wei Yongjun's avatar Wei Yongjun Committed by Zheng Zengkai
Browse files

RDMA/hns: Use GFP_ATOMIC under spin lock 

mainline inclusion
from mainline-v5.13-rc1
commit 2abb7431
category: bugfix
bugzilla: 174002
CVE:NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2abb7431736be539b2e0926388c7c2602a68a178

----------------------------------------------------------------------

A spin lock is taken here so we should use GFP_ATOMIC.

Fixes: f91696f2 ("RDMA/hns: Support congestion control type selection according to the FW")
Link: https://lore.kernel.org/r/20210407154900.3486268-1-weiyongjun1@huawei.com


Reported-by: default avatarHulk Robot <hulkci@huawei.com>
Signed-off-by: default avatarWei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Signed-off-by: default avatarwangsirong <wangsirong@huawei.com>
Reviewed-by: default avatarChunZhi Hu <huchunzhi@huawei.com>
Signed-off-by: default avatarZheng Zengkai <zhengzengkai@huawei.com>
parent afa28393

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

+1 −1
Original line number Diff line number Diff line
@@ -4623,7 +4623,7 @@ static int get_dip_ctx_idx(struct ib_qp *ibqp, const struct ib_qp_attr *attr, 
	/* If no dgid is found, a new dip and a mapping between dgid and

	 * dip_idx will be created.

	 */

	hr_dip = kzalloc(sizeof(*hr_dip), GFP_KERNEL);

	hr_dip = kzalloc(sizeof(*hr_dip), GFP_ATOMIC);

	if (!hr_dip) {

		ret = -ENOMEM;

		goto out;