Commit 2d3b2e44 authored by Bob Pearson's avatar Bob Pearson Committed by Jason Gunthorpe
Browse files

RDMA/rxe: Fix redundant skb_put_zero 

rxe_init_packet() in rxe_net.c calls skb_put_zero() to reserve space for
the payload and zero it out. All these bytes are then re-written with RoCE
headers and payload. Remove this useless extra copy.

Fixes: ecb238f6 ("IB/cxgb4: use skb_put_zero()/__skb_put_zero")
Link: https://lore.kernel.org/r/20210618045742.204195-7-rpearsonhpe@gmail.com


Signed-off-by: default avatarBob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent 3896bde9

drivers/infiniband/sw/rxe/rxe_net.c

+1 −1
Original line number Diff line number Diff line
@@ -468,7 +468,7 @@ struct sk_buff *rxe_init_packet(struct rxe_dev *rxe, struct rxe_av *av, 


	pkt->rxe	= rxe;

	pkt->port_num	= port_num;

	pkt->hdr	= skb_put_zero(skb, paylen);

	pkt->hdr	= skb_put(skb, paylen);

	pkt->mask	|= RXE_GRH_MASK;



out: