From: Gertjan van Wingerde Date: Fri, 4 Dec 2009 22:47:07 +0000 (+0100) Subject: rt2x00: Fix trimming of L2 padded frames. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e54be4e7356c0612b48407d3b0647a29cb82e254;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git rt2x00: Fix trimming of L2 padded frames. Ensure that frames without payload are properly trimmed in rt2x00queue_insert_l2pad. This should fix the bug reported by Benoit Papillault in: http://marc.info/?l=linux-wireless&m=125974773006734&w=2 Signed-off-by: Gertjan van Wingerde Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c index 7452fa850a0f..3d8fb684b4eb 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c @@ -180,7 +180,7 @@ void rt2x00queue_insert_l2pad(struct sk_buff *skb, unsigned int header_length) unsigned int payload_length = skb->len - header_length; unsigned int header_align = ALIGN_SIZE(skb, 0); unsigned int payload_align = ALIGN_SIZE(skb, header_length); - unsigned int l2pad = L2PAD_SIZE(header_length); + unsigned int l2pad = payload_length ? L2PAD_SIZE(header_length) : 0; /* * Adjust the header alignment if the payload needs to be moved more