This is a note to let you know that I've just added the patch titled
tg3: Expand 4g_overflow_test workaround to skb fragments of any size.
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tg3-expand-4g_overflow_test-workaround-to-skb-fragments-of-any-size.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 375679104ab3ccfd18dcbd7ba503734fb9a2c63a Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@xxxxxxxxxxxx>
Date: Thu, 19 Dec 2013 17:44:11 -0800
Subject: tg3: Expand 4g_overflow_test workaround to skb fragments of any size.
From: Nithin Sujir <nsujir@xxxxxxxxxxxx>
commit 375679104ab3ccfd18dcbd7ba503734fb9a2c63a upstream.
The current driver assumes that an skb fragment can only be upto jumbo
size. Presumably this was a fast-path optimization. This assumption is
no longer true as fragments can be upto 32k.
v2: Remove unnecessary parantheses per Eric Dumazet.
Signed-off-by: Nithin Nayak Sujir <nsujir@xxxxxxxxxxxx>
Signed-off-by: Michael Chan <mchan@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/broadcom/tg3.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -6619,7 +6619,7 @@ static inline int tg3_4g_overflow_test(d
{
u32 base = (u32) mapping & 0xffffffff;
- return (base > 0xffffdcc0) && (base + len + 8 < base);
+ return base + len + 8 < base;
}
/* Test for DMA addresses > 40-bit */
Patches currently in stable-queue which might be from nsujir@xxxxxxxxxxxx are
queue-3.4/tg3-expand-4g_overflow_test-workaround-to-skb-fragments-of-any-size.patch
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