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Commit 4cdf0c36 authored by Jiri Slaby's avatar Jiri Slaby Committed by minz1
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core, nfqueue, openvswitch: fix compilation warning



Stable commit "core, nfqueue, openvswitch: Orphan frags in
skb_zerocopy and handle errors", upstream commit
36d5fe6a000790f56039afe26834265db0a3ad4c, was not correctly backported
and missed to change a const 'from' parameter to non-const.  This
results in a new batch of warnings:

net/netfilter/nfnetlink_queue_core.c: In function ‘nfqnl_zcopy’:
net/netfilter/nfnetlink_queue_core.c:272:2: warning: passing argument 1 of ‘skb_orphan_frags’ discards ‘const’ qualifier from pointer target type [enabled by default]
  if (unlikely(skb_orphan_frags(from, GFP_ATOMIC))) {
  ^
In file included from net/netfilter/nfnetlink_queue_core.c:18:0:
include/linux/skbuff.h:1822:19: note: expected ‘struct sk_buff *’ but argument is of type ‘const struct sk_buff *’
 static inline int skb_orphan_frags(struct sk_buff *skb, gfp_t gfp_mask)
                   ^
net/netfilter/nfnetlink_queue_core.c:273:3: warning: passing argument 1 of ‘skb_tx_error’ discards ‘const’ qualifier from pointer target type [enabled by default]
   skb_tx_error(from);
   ^
In file included from net/netfilter/nfnetlink_queue_core.c:18:0:
include/linux/skbuff.h:630:13: note: expected ‘struct sk_buff *’ but argument is of type ‘const struct sk_buff *’
 extern void skb_tx_error(struct sk_buff *skb);

Remove const from the 'from' parameter, the same as in the upstream
commit.

As far as I can see, this leaked into 3.10, 3.12, and 3.13 already.

Cc: Zoltan Kiss <zoltan.kiss@citrix.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Kamal Mostafa <kamal.mostafa@canonical.com>
Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarCorinna Vinschen <xda@vinschen.de>
parent a7c4932d
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