From 60d6e6f0b9e422dd01aeda39257ee0428e5e2a3f Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Sun, 1 Apr 2018 10:26:30 -0700
Subject: [PATCH] net: bgmac: Fix endian access in bgmac_dma_tx_ring_free()
Git-commit: 60d6e6f0b9e422dd01aeda39257ee0428e5e2a3f
Patch-mainline: v4.17-rc1
References: bsc#1051510
bgmac_dma_tx_ring_free() assigns the ctl1 word which is a litle endian
32-bit word without using proper accessors, fix this, and because a
length cannot be negative, use unsigned int while at it.
Fixes: 9cde94506eac ("bgmac: implement scatter/gather support")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/ethernet/broadcom/bgmac.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 2326cc219c46..e6ea8e61f96d 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -533,7 +533,8 @@ static void bgmac_dma_tx_ring_free(struct bgmac *bgmac,
int i;
for (i = 0; i < BGMAC_TX_RING_SLOTS; i++) {
- int len = dma_desc[i].ctl1 & BGMAC_DESC_CTL1_LEN;
+ u32 ctl1 = le32_to_cpu(dma_desc[i].ctl1);
+ unsigned int len = ctl1 & BGMAC_DESC_CTL1_LEN;
slot = &ring->slots[i];
dev_kfree_skb(slot->skb);
--
2.19.2