On 4/26/2017 10:53 AM, Kalle Valo wrote:
Arend Van Spriel <arend.vanspriel@xxxxxxxxxxxx> wrote:
An issue was found brcmfmac driver in which a skbuff in .start_xmit()
callback was actually cloned. So instead of checking for sufficient
headroom it should also be writable. Hence use skb_cow_head() to
check and expand the headroom appropriately.
Signed-off-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
Steve, would you have time to run a quick test with this?
Patch set to Deferred.
Just a hint. I tested the equivalent patch in brcmfmac by doing a
skb_clone() just before the headroom if-statement (and a kfree_skb()
afterwards obviously ;-) ).
Regards,
Arend
