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sfc: Fix byte order warnings for ethtool RX filter interface 

sparse has got a bit more picky since I last ran it over this.  Add
forced casts for use of ~0 as a big-endian value.  Undo the pointless
optimisation of parameter validation with '|'; using '||' avoids these
warnings.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
This commit is contained in:
Ben Hutchings 2012-09-06 02:11:04 +01:00
parent bb728820fe
commit 0e0c3408a5
1 changed files with 14 additions and 11 deletions
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25
drivers/net/ethernet/sfc/ethtool.c
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@ -816,6 +816,9 @@ static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
/* MAC address mask including only MC flag */
static const u8 mac_addr_mc_mask[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
#define IP4_ADDR_FULL_MASK ((__force __be32)~0)
#define PORT_FULL_MASK ((__force __be16)~0)
static int efx_ethtool_get_class_rule(struct efx_nic *efx,
struct ethtool_rx_flow_spec *rule)
{
@ -865,12 +868,12 @@ static int efx_ethtool_get_class_rule(struct efx_nic *efx,
&spec, &proto, &ip_entry->ip4dst, &ip_entry->pdst,
&ip_entry->ip4src, &ip_entry->psrc);
EFX_WARN_ON_PARANOID(rc);
ip_mask->ip4src = ~0;
ip_mask->psrc = ~0;
ip_mask->ip4src = IP4_ADDR_FULL_MASK;
ip_mask->psrc = PORT_FULL_MASK;
}
rule->flow_type = (proto == IPPROTO_TCP) ? TCP_V4_FLOW : UDP_V4_FLOW;
ip_mask->ip4dst = ~0;
ip_mask->pdst = ~0;
ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
ip_mask->pdst = PORT_FULL_MASK;
return rc;
}
@ -971,7 +974,7 @@ static int efx_ethtool_set_class_rule(struct efx_nic *efx,
/* Check for unsupported extensions */
if ((rule->flow_type & FLOW_EXT) &&
(rule->m_ext.vlan_etype | rule->m_ext.data[0] |
(rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
rule->m_ext.data[1]))
return -EINVAL;
@ -986,16 +989,16 @@ static int efx_ethtool_set_class_rule(struct efx_nic *efx,
IPPROTO_TCP : IPPROTO_UDP);
/* Must match all of destination, */
if ((__force u32)~ip_mask->ip4dst |
(__force u16)~ip_mask->pdst)
if (!(ip_mask->ip4dst == IP4_ADDR_FULL_MASK &&
ip_mask->pdst == PORT_FULL_MASK))
return -EINVAL;
/* all or none of source, */
if ((ip_mask->ip4src | ip_mask->psrc) &&
((__force u32)~ip_mask->ip4src |
(__force u16)~ip_mask->psrc))
if ((ip_mask->ip4src || ip_mask->psrc) &&
!(ip_mask->ip4src == IP4_ADDR_FULL_MASK &&
ip_mask->psrc == PORT_FULL_MASK))
return -EINVAL;
/* and nothing else */
if (ip_mask->tos | rule->m_ext.vlan_tci)
if (ip_mask->tos || rule->m_ext.vlan_tci)
return -EINVAL;
if (ip_mask->ip4src)