From 815c7db5c809ea3d5735de3131ecdf758b0e14ff Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Tue, 6 Sep 2011 13:49:12 +0000
Subject: [PATCH] ethtool: Clean up definitions of rule location arrays in RX
NFC
Correct the description of ethtool_rxnfc::rule_locs; it is an array
of currently used locations, not all possible valid locations.
Add note that drivers must not use ethtool_rxnfc::rule_locs.
The rule_locs argument to ethtool_ops::get_rxnfc is either NULL or a
pointer to an array of u32, so change the parameter type accordingly.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c | 2 +-
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 2 +-
drivers/net/ethernet/freescale/gianfar_ethtool.c | 4 ++--
drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 5 ++---
drivers/net/ethernet/sfc/ethtool.c | 2 +-
drivers/net/ethernet/sun/niu.c | 4 ++--
drivers/net/vmxnet3/vmxnet3_ethtool.c | 2 +-
include/linux/ethtool.h | 7 ++++---
8 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 767c22983c17..ce14f11c0de5 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -2241,7 +2241,7 @@ static int bnx2x_set_phys_id(struct net_device *dev,
}
static int bnx2x_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
- void *rules __always_unused)
+ u32 *rules __always_unused)
{
struct bnx2x *bp = netdev_priv(dev);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 90b4921cac9b..40b395f932cf 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -1902,7 +1902,7 @@ static int set_rss_table(struct net_device *dev,
}
static int get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
- void *rules)
+ u32 *rules)
{
const struct port_info *pi = netdev_priv(dev);
diff --git a/drivers/net/ethernet/freescale/gianfar_ethtool.c b/drivers/net/ethernet/freescale/gianfar_ethtool.c
index 25a8c2adb001..42238301c425 100644
--- a/drivers/net/ethernet/freescale/gianfar_ethtool.c
+++ b/drivers/net/ethernet/freescale/gianfar_ethtool.c
@@ -1712,7 +1712,7 @@ static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
}
static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
- void *rule_locs)
+ u32 *rule_locs)
{
struct gfar_private *priv = netdev_priv(dev);
int ret = 0;
@@ -1728,7 +1728,7 @@ static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
ret = gfar_get_cls(priv, cmd);
break;
case ETHTOOL_GRXCLSRLALL:
- ret = gfar_get_cls_all(priv, cmd, (u32 *) rule_locs);
+ ret = gfar_get_cls_all(priv, cmd, rule_locs);
break;
default:
ret = -EINVAL;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index 11e1d5cd40b9..c0003babc06b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -2287,7 +2287,7 @@ static int ixgbe_get_ethtool_fdir_all(struct ixgbe_adapter *adapter,
}
static int ixgbe_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
- void *rule_locs)
+ u32 *rule_locs)
{
struct ixgbe_adapter *adapter = netdev_priv(dev);
int ret = -EOPNOTSUPP;
@@ -2305,8 +2305,7 @@ static int ixgbe_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
ret = ixgbe_get_ethtool_fdir_entry(adapter, cmd);
break;
case ETHTOOL_GRXCLSRLALL:
- ret = ixgbe_get_ethtool_fdir_all(adapter, cmd,
- (u32 *)rule_locs);
+ ret = ixgbe_get_ethtool_fdir_all(adapter, cmd, rule_locs);
break;
default:
break;
diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c
index 93f1fb99432d..9536925f5bdd 100644
--- a/drivers/net/ethernet/sfc/ethtool.c
+++ b/drivers/net/ethernet/sfc/ethtool.c
@@ -824,7 +824,7 @@ static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
static int
efx_ethtool_get_rxnfc(struct net_device *net_dev,
- struct ethtool_rxnfc *info, void *rules __always_unused)
+ struct ethtool_rxnfc *info, u32 *rules __always_unused)
{
struct efx_nic *efx = netdev_priv(net_dev);
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index cad58f26c47c..5e1e1d2748ae 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -7303,7 +7303,7 @@ static int niu_get_ethtool_tcam_all(struct niu *np,
}
static int niu_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
- void *rule_locs)
+ u32 *rule_locs)
{
struct niu *np = netdev_priv(dev);
int ret = 0;
@@ -7322,7 +7322,7 @@ static int niu_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
ret = niu_get_ethtool_tcam_entry(np, cmd);
break;
case ETHTOOL_GRXCLSRLALL:
- ret = niu_get_ethtool_tcam_all(np, cmd, (u32 *)rule_locs);
+ ret = niu_get_ethtool_tcam_all(np, cmd, rule_locs);
break;
default:
ret = -EINVAL;
diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c
index 27400edeef55..e662cbc8bfbd 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c
@@ -558,7 +558,7 @@ out:
static int
vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
- void *rules)
+ u32 *rules)
{
struct vmxnet3_adapter *adapter = netdev_priv(netdev);
switch (info->cmd) {
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index b5d189367a02..5d4a06accd82 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -479,7 +479,7 @@ struct ethtool_rx_flow_spec {
* @data: Command-dependent value
* @fs: Flow classification rule
* @rule_cnt: Number of rules to be affected
- * @rule_locs: Array of valid rule locations
+ * @rule_locs: Array of used rule locations
*
* For %ETHTOOL_GRXFH and %ETHTOOL_SRXFH, @data is a bitmask indicating
* the fields included in the flow hash, e.g. %RXH_IP_SRC. The following
@@ -497,7 +497,8 @@ struct ethtool_rx_flow_spec {
* For %ETHTOOL_GRXCLSRLALL, @rule_cnt specifies the array size of the
* user buffer for @rule_locs on entry. On return, @data is the size
* of the rule table and @rule_locs contains the locations of the
- * defined rules.
+ * defined rules. Drivers must use the second parameter to get_rxnfc()
+ * instead of @rule_locs.
*
* For %ETHTOOL_SRXCLSRLINS, @fs specifies the rule to add or update.
* @fs.@location specifies the location to use and must not be ignored.
@@ -939,7 +940,7 @@ struct ethtool_ops {
int (*set_priv_flags)(struct net_device *, u32);
int (*get_sset_count)(struct net_device *, int);
int (*get_rxnfc)(struct net_device *,
- struct ethtool_rxnfc *, void *);
+ struct ethtool_rxnfc *, u32 *rule_locs);
int (*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *);
int (*flash_device)(struct net_device *, struct ethtool_flash *);
int (*reset)(struct net_device *, u32 *);
--
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