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authorEric Dumazet <edumazet@google.com>2012-09-10 21:22:11 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-09-10 15:58:31 -0700
commitabf02cfc179bb4bd30d05f582d61b3b8f429b813 (patch)
tree16f5eb929c54b6b8d00b82ef1288744980551f8e /drivers/staging
parent6d7d9798ad5c97ee4e911dd070dc12dc5ae55bd0 (diff)
staging: r8712u: fix bug in r8712_recv_indicatepkt()
64bit arches have a buggy r8712u driver, let's fix it. skb->tail must be set properly or network stack behavior is undefined. Addresses https://bugzilla.redhat.com/show_bug.cgi?id=847525 Addresses https://bugzilla.kernel.org/show_bug.cgi?id=45071 Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Dave Jones <davej@redhat.com> Cc: stable <stable@vger.kernel.org> [2.6.37+] Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
-rw-r--r--drivers/staging/rtl8712/recv_linux.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/staging/rtl8712/recv_linux.c b/drivers/staging/rtl8712/recv_linux.c
index 0e26d5f6cf2..495ee1205e0 100644
--- a/drivers/staging/rtl8712/recv_linux.c
+++ b/drivers/staging/rtl8712/recv_linux.c
@@ -117,13 +117,8 @@ void r8712_recv_indicatepkt(struct _adapter *padapter,
if (skb == NULL)
goto _recv_indicatepkt_drop;
skb->data = precv_frame->u.hdr.rx_data;
-#ifdef NET_SKBUFF_DATA_USES_OFFSET
- skb->tail = (sk_buff_data_t)(precv_frame->u.hdr.rx_tail -
- precv_frame->u.hdr.rx_head);
-#else
- skb->tail = (sk_buff_data_t)precv_frame->u.hdr.rx_tail;
-#endif
skb->len = precv_frame->u.hdr.len;
+ skb_set_tail_pointer(skb, skb->len);
if ((pattrib->tcpchk_valid == 1) && (pattrib->tcp_chkrpt == 1))
skb->ip_summed = CHECKSUM_UNNECESSARY;
else