Thanks Vaishali. I have added your patch to our local kernel git, and
will submit it within a following upstream shipment.
Regards, Ursula Braun
On Wed, 2015-06-10 at 16:22 +0530, Vaishali Thakkar wrote:
> In little endian cases, the macro htons unfolds to __swab16 which
> provides special case for constants. In big endian cases,
> __constant_htons and htons expand directly to the same expression.
> So, replace __constant_htons with htons with the goal of getting
> rid of the definition of __constant_htons completely.
>
> The semantic patch that performs this transformation is as follows:
>
> @@expression x;@@
>
> - __constant_htons(x)
> + htons(x)
>
> Signed-off-by: Vaishali Thakkar <vthakkar1994@xxxxxxxxx>
> ---
> drivers/s390/net/qeth_l2_main.c | 2 +-
> drivers/s390/net/qeth_l3_main.c | 6 +++---
> 2 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
> index 0ea0869..a124f59 100644
> --- a/drivers/s390/net/qeth_l2_main.c
> +++ b/drivers/s390/net/qeth_l2_main.c
> @@ -272,7 +272,7 @@ static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
> /* VSWITCH relies on the VLAN
> * information to be present in
> * the QDIO header */
> - if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) {
> + if (veth->h_vlan_proto == htons(ETH_P_8021Q)) {
> hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN;
> hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI);
> }
> diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
> index 04e42c6..bd6b5a9 100644
> --- a/drivers/s390/net/qeth_l3_main.c
> +++ b/drivers/s390/net/qeth_l3_main.c
> @@ -1887,13 +1887,13 @@ static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
> case QETH_CAST_MULTICAST:
> switch (prot) {
> #ifdef CONFIG_QETH_IPV6
> - case __constant_htons(ETH_P_IPV6):
> + case htons(ETH_P_IPV6):
> ndisc_mc_map((struct in6_addr *)
> skb->data + 24,
> tg_addr, card->dev, 0);
> break;
> #endif
> - case __constant_htons(ETH_P_IP):
> + case htons(ETH_P_IP):
> ip_hdr = (struct iphdr *)skb->data;
> ip_eth_mc_map(ip_hdr->daddr, tg_addr);
> break;
> @@ -3015,7 +3015,7 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
> skb_copy_to_linear_data_offset(new_skb, 8,
> new_skb->data + 12, 4);
> tag = (u16 *)(new_skb->data + 12);
> - *tag = __constant_htons(ETH_P_8021Q);
> + *tag = htons(ETH_P_8021Q);
> *(tag + 1) = htons(skb_vlan_tag_get(new_skb));
> }
> }
--
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