openwrt/target/linux/brcm2708/patches-4.9/950-0001-smsx95xx-fix-crimes-against-truesize.patch
Koen Vandeputte dfbf836a52 kernel: bump 4.9 to 4.9.143
Refreshed all patches.

Altered patches:
- 950-0063-Improve-__copy_to_user-and-__copy_from_user-performa.patch
- 201-extra_optimization.patch

New symbol:
- CONFIG_HARDEN_BRANCH_PREDICTOR

Compile-tested on: ar7, at91, brcm2708, ixp4xx, layerscape, orion
Runtime-tested on: none

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
[fix brcm2708/950-0149-Update-vfpmodule.c.patch]
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2018-12-10 11:48:44 +01:00

48 lines
1.7 KiB
Diff

From c01a3230d8cdd396dcec2619646f6cf2753481d8 Mon Sep 17 00:00:00 2001
From: Steve Glendinning <steve.glendinning@smsc.com>
Date: Thu, 19 Feb 2015 18:47:12 +0000
Subject: [PATCH] smsx95xx: fix crimes against truesize
smsc95xx is adjusting truesize when it shouldn't, and following a recent patch from Eric this is now triggering warnings.
This patch stops smsc95xx from changing truesize.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
---
drivers/net/usb/smsc95xx.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -82,6 +82,10 @@ static bool turbo_mode = true;
module_param(turbo_mode, bool, 0644);
MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
+static bool truesize_mode = false;
+module_param(truesize_mode, bool, 0644);
+MODULE_PARM_DESC(truesize_mode, "Report larger truesize value");
+
static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
u32 *data, int in_pm)
{
@@ -1961,7 +1965,8 @@ static int smsc95xx_rx_fixup(struct usbn
if (dev->net->features & NETIF_F_RXCSUM)
smsc95xx_rx_csum_offload(skb);
skb_trim(skb, skb->len - 4); /* remove fcs */
- skb->truesize = size + sizeof(struct sk_buff);
+ if (truesize_mode)
+ skb->truesize = size + sizeof(struct sk_buff);
return 1;
}
@@ -1979,7 +1984,8 @@ static int smsc95xx_rx_fixup(struct usbn
if (dev->net->features & NETIF_F_RXCSUM)
smsc95xx_rx_csum_offload(ax_skb);
skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */
- ax_skb->truesize = size + sizeof(struct sk_buff);
+ if (truesize_mode)
+ ax_skb->truesize = size + sizeof(struct sk_buff);
usbnet_skb_return(dev, ax_skb);
}