diff options
author | Alex Shi <alex.shi@linaro.org> | 2016-04-21 14:08:44 +0800 |
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committer | Alex Shi <alex.shi@linaro.org> | 2016-04-21 14:08:44 +0800 |
commit | bab15641824ad77e5f3af9cc4b84308cba32aa7d (patch) | |
tree | 6a7333fc6f30e08a7142daa5dbc1dd2bf5d08dca /drivers/net/macvtap.c | |
parent | 08562bfcb85748c69e5824fc6d1d77d5725787e4 (diff) | |
parent | 2bf7955152a0544342fcaed28930748cc68392ae (diff) |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-androidlsk-v4.4-16.04-android
Conflicts:
d_canonical_path in include/linux/dcache.h
Diffstat (limited to 'drivers/net/macvtap.c')
-rw-r--r-- | drivers/net/macvtap.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index 0fc521941c71..159a68782bec 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -760,6 +760,8 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m, macvtap16_to_cpu(q, vnet_hdr.hdr_len) : GOODCOPY_LEN; if (copylen > good_linear) copylen = good_linear; + else if (copylen < ETH_HLEN) + copylen = ETH_HLEN; linear = copylen; i = *from; iov_iter_advance(&i, copylen); @@ -769,10 +771,11 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m, if (!zerocopy) { copylen = len; - if (macvtap16_to_cpu(q, vnet_hdr.hdr_len) > good_linear) + linear = macvtap16_to_cpu(q, vnet_hdr.hdr_len); + if (linear > good_linear) linear = good_linear; - else - linear = macvtap16_to_cpu(q, vnet_hdr.hdr_len); + else if (linear < ETH_HLEN) + linear = ETH_HLEN; } skb = macvtap_alloc_skb(&q->sk, MACVTAP_RESERVE, copylen, |