openwrt/target/linux/layerscape/patches-5.4/701-net-0096-sdk_dpaa-guard-against-an-out-of-bounds-queue-index.patch
Yangbo Lu cddd459140 layerscape: add patches-5.4
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2020-05-07 12:53:06 +02:00

35 lines
1.2 KiB
Diff

From 56203e34ec05e39a088036b5d9db7fde7a7af742 Mon Sep 17 00:00:00 2001
From: Camelia Groza <camelia.groza@nxp.com>
Date: Tue, 30 Oct 2018 18:18:30 +0200
Subject: [PATCH] sdk_dpaa: guard against an out of bounds queue index
Make sure the queue mapping recorded in the skb is not larger than our
egress queue count.
Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
---
drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
+++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
@@ -1035,7 +1035,7 @@ EXPORT_SYMBOL(skb_to_sg_fd);
int __hot dpa_tx(struct sk_buff *skb, struct net_device *net_dev)
{
struct dpa_priv_s *priv;
- const int queue_mapping = dpa_get_queue_mapping(skb);
+ int queue_mapping = dpa_get_queue_mapping(skb);
struct qman_fq *egress_fq, *conf_fq;
#ifdef CONFIG_FSL_DPAA_HOOKS
@@ -1053,6 +1053,9 @@ int __hot dpa_tx(struct sk_buff *skb, st
return ceetm_tx(skb, net_dev);
#endif
+ if (unlikely(queue_mapping >= DPAA_ETH_TX_QUEUES))
+ queue_mapping = queue_mapping % DPAA_ETH_TX_QUEUES;
+
egress_fq = priv->egress_fqs[queue_mapping];
conf_fq = priv->conf_fqs[queue_mapping];