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Message-Id: <1405571974-23143-1-git-send-email-anish@chelsio.com>
Date: Wed, 16 Jul 2014 21:39:34 -0700
From: Anish Bhatt <anish@...lsio.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, leedom@...lsio.com, dan.carpenter@...cle.com,
Anish Bhatt <anish@...lsio.com>
Subject: [PATCH net-next] Update setapp/getapp prototypes in dcbnl_rtnl_ops to return int instead of u8
This enables them to return actual errors instead of 0.
Changed bnx2x/cxgb4/qlcnic/ixgbe as required
Signed-off-by: Anish Bhatt <anish@...lsio.com>
---
drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c | 4 ++--
drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c | 21 ++++++---------------
drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c | 6 +++---
drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c | 4 ++--
include/net/dcbnl.h | 4 ++--
net/dcb/dcbnl.c | 4 ++++
6 files changed, 19 insertions(+), 24 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
index 51a952c51cb1..fb26bc4c42a1 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
@@ -2303,8 +2303,8 @@ static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
return 0;
}
-static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
- u16 idval, u8 up)
+static int bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
+ u16 idval, u8 up)
{
struct bnx2x *bp = netdev_priv(netdev);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c
index a8b1073e6373..0d3a9df5be36 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c
@@ -648,26 +648,17 @@ static int __cxgb4_getapp(struct net_device *dev, u8 app_idtype, u16 app_id,
}
/* Return the Application User Priority Map associated with the specified
- * Application ID. Since this routine is prototyped to return "u8" we can't
- * return errors ...
+ * Application ID.
*/
-static u8 cxgb4_getapp(struct net_device *dev, u8 app_idtype, u16 app_id)
+static int cxgb4_getapp(struct net_device *dev, u8 app_idtype, u16 app_id)
{
- int result = __cxgb4_getapp(dev, app_idtype, app_id, 0);
-
- if (result < 0)
- result = 0;
-
- return result;
+ return __cxgb4_getapp(dev, app_idtype, app_id, 0);
}
-/* Write a new Application User Priority Map for the specified Application ID.
- * This routine is prototyped to return "u8" but other instantiations of the
- * DCB NetLink Operations "setapp" routines return negative errnos for errors.
- * We follow their lead.
+/* Write a new Application User Priority Map for the specified Application ID
*/
-static u8 cxgb4_setapp(struct net_device *dev, u8 app_idtype, u16 app_id,
- u8 app_prio)
+static int cxgb4_setapp(struct net_device *dev, u8 app_idtype, u16 app_id,
+ u8 app_prio)
{
struct fw_port_cmd pcmd;
struct port_info *pi = netdev2pinfo(dev);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c
index 5172b6b12c09..ea1c1ab926e2 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c
@@ -495,10 +495,10 @@ static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state)
* @id: id is either ether type or TCP/UDP port number
*
* Returns : on success, returns a non-zero 802.1p user priority bitmap
- * otherwise returns 0 as the invalid user priority bitmap to indicate an
+ * otherwise returns -EINVAL as the invalid user priority bitmap to indicate an
* error.
*/
-static u8 ixgbe_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id)
+static int ixgbe_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
struct dcb_app app = {
@@ -507,7 +507,7 @@ static u8 ixgbe_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id)
};
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
- return 0;
+ return -EINVAL;
return dcb_getapp(netdev, &app);
}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
index 561cb11ca58c..a72bcddf160a 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
@@ -926,7 +926,7 @@ static int qlcnic_dcb_get_num_tcs(struct net_device *netdev, int attr, u8 *num)
}
}
-static u8 qlcnic_dcb_get_app(struct net_device *netdev, u8 idtype, u16 id)
+static int qlcnic_dcb_get_app(struct net_device *netdev, u8 idtype, u16 id)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct dcb_app app = {
@@ -935,7 +935,7 @@ static u8 qlcnic_dcb_get_app(struct net_device *netdev, u8 idtype, u16 id)
};
if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
- return 0;
+ return -EINVAL;
return dcb_getapp(netdev, &app);
}
diff --git a/include/net/dcbnl.h b/include/net/dcbnl.h
index a975edf21b22..597b88a94332 100644
--- a/include/net/dcbnl.h
+++ b/include/net/dcbnl.h
@@ -81,8 +81,8 @@ struct dcbnl_rtnl_ops {
void (*setbcncfg)(struct net_device *, int, u32);
void (*getbcnrp)(struct net_device *, int, u8 *);
void (*setbcnrp)(struct net_device *, int, u8);
- u8 (*setapp)(struct net_device *, u8, u16, u8);
- u8 (*getapp)(struct net_device *, u8, u16);
+ int (*setapp)(struct net_device *, u8, u16, u8);
+ int (*getapp)(struct net_device *, u8, u16);
u8 (*getfeatcfg)(struct net_device *, int, u8 *);
u8 (*setfeatcfg)(struct net_device *, int, u8);
diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index f8b98d89c285..3996f1fa3de6 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -472,6 +472,8 @@ static int dcbnl_getapp(struct net_device *netdev, struct nlmsghdr *nlh,
if (netdev->dcbnl_ops->getapp) {
up = netdev->dcbnl_ops->getapp(netdev, idtype, id);
+ if (up < 0)
+ return up;
} else {
struct dcb_app app = {
.selector = idtype,
@@ -538,6 +540,8 @@ static int dcbnl_setapp(struct net_device *netdev, struct nlmsghdr *nlh,
if (netdev->dcbnl_ops->setapp) {
ret = netdev->dcbnl_ops->setapp(netdev, idtype, id, up);
+ if (ret < 0)
+ return ret;
} else {
struct dcb_app app;
app.selector = idtype;
--
2.0.1
--
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