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gro: use min_t() in skb_gro_reset_offset()

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[ Upstream commit 7cfd5fd5a9813f1430290d20c0fead9b4582a307 ]

On 32bit arches, (skb->end - skb->data) is not 'unsigned int',
so we shall use min_t() instead of min() to avoid a compiler error.

Fixes: 1272ce87fa01 ("gro: Enter slow-path if there is no tailroom")
Reported-by: kernel test robot <fengguang.wu@intel.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Eric Dumazet 2017-01-10 19:52:43 -08:00 • committed by Greg Kroah-Hartman
parent 5169043e97
commit db7119eaac
1 changed files with 3 additions and 2 deletions
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5
net/core/dev.c
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@ -4187,8 +4187,9 @@ static void skb_gro_reset_offset(struct sk_buff *skb)
pinfo->nr_frags &&
!PageHighMem(skb_frag_page(frag0))) {
NAPI_GRO_CB(skb)->frag0 = skb_frag_address(frag0);
NAPI_GRO_CB(skb)->frag0_len = min(skb_frag_size(frag0),
skb->end - skb->tail);
NAPI_GRO_CB(skb)->frag0_len = min_t(unsigned int,
skb_frag_size(frag0),
skb->end - skb->tail);
}
}