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Commit a7ddb047 authored by xypron.glpk@gmx.de's avatar xypron.glpk@gmx.de Committed by Greg Kroah-Hartman
Browse files

net: thunderx: avoid exposing kernel stack 



[ Upstream commit 161de2caf68c549c266e571ffba8e2163886fb10 ]

Reserved fields should be set to zero to avoid exposing
bits from the kernel stack.

Signed-off-by: default avatarHeinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 83857201

drivers/net/ethernet/cavium/thunder/nicvf_queues.c

+4 −0
Original line number Diff line number Diff line
@@ -550,6 +550,7 @@ static void nicvf_rcv_queue_config(struct nicvf *nic, struct queue_set *qs, 
		nicvf_config_vlan_stripping(nic, nic->netdev->features);



	/* Enable Receive queue */

	memset(&rq_cfg, 0, sizeof(struct rq_cfg));

	rq_cfg.ena = 1;

	rq_cfg.tcp_ena = 0;

	nicvf_queue_reg_write(nic, NIC_QSET_RQ_0_7_CFG, qidx, *(u64 *)&rq_cfg);
@@ -582,6 +583,7 @@ void nicvf_cmp_queue_config(struct nicvf *nic, struct queue_set *qs, 
			      qidx, (u64)(cq->dmem.phys_base));



	/* Enable Completion queue */

	memset(&cq_cfg, 0, sizeof(struct cq_cfg));

	cq_cfg.ena = 1;

	cq_cfg.reset = 0;

	cq_cfg.caching = 0;
@@ -630,6 +632,7 @@ static void nicvf_snd_queue_config(struct nicvf *nic, struct queue_set *qs, 
			      qidx, (u64)(sq->dmem.phys_base));



	/* Enable send queue  & set queue size */

	memset(&sq_cfg, 0, sizeof(struct sq_cfg));

	sq_cfg.ena = 1;

	sq_cfg.reset = 0;

	sq_cfg.ldwb = 0;
@@ -666,6 +669,7 @@ static void nicvf_rbdr_config(struct nicvf *nic, struct queue_set *qs, 


	/* Enable RBDR  & set queue size */

	/* Buffer size should be in multiples of 128 bytes */

	memset(&rbdr_cfg, 0, sizeof(struct rbdr_cfg));

	rbdr_cfg.ena = 1;

	rbdr_cfg.reset = 0;

	rbdr_cfg.ldwb = 0;