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Subject[PATCH] IB/ipoib: optimized the function ipoib_mcast_alloc
Date
ipoib_mcast_alloc is called only in atomic context,
hence removing the extra check.

Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
---
Hi,
Even if in future, if there are some functions expected to call it in normal context(not atomic),
we can pass the GFP_KERNEL or GFP_ATOMIC directly to function call instead of passing 0 and 1,
which later again need to be compared in order to change it to GFP_KERNEL and GFP_ATOMIC.
Please let me know if there are better ways to improve it.

drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index d750a86..15d35be 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -132,12 +132,11 @@ void ipoib_mcast_free(struct ipoib_mcast *mcast)
kfree(mcast);
}

-static struct ipoib_mcast *ipoib_mcast_alloc(struct net_device *dev,
- int can_sleep)
+static struct ipoib_mcast *ipoib_mcast_alloc(struct net_device *dev)
{
struct ipoib_mcast *mcast;

- mcast = kzalloc(sizeof *mcast, can_sleep ? GFP_KERNEL : GFP_ATOMIC);
+ mcast = kzalloc(sizeof *mcast, GFP_ATOMIC);
if (!mcast)
return NULL;

@@ -573,7 +572,7 @@ void ipoib_mcast_join_task(struct work_struct *work)
if (!priv->broadcast) {
struct ipoib_mcast *broadcast;

- broadcast = ipoib_mcast_alloc(dev, 0);
+ broadcast = ipoib_mcast_alloc(dev);
if (!broadcast) {
ipoib_warn(priv, "failed to allocate broadcast group\n");
/*
@@ -728,7 +727,7 @@ void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb)
ipoib_dbg_mcast(priv, "setting up send only multicast group for %pI6\n",
mgid);

- mcast = ipoib_mcast_alloc(dev, 0);
+ mcast = ipoib_mcast_alloc(dev);
if (!mcast) {
ipoib_warn(priv, "unable to allocate memory "
"for multicast structure\n");
@@ -886,7 +885,7 @@ void ipoib_mcast_restart_task(struct work_struct *work)
ipoib_dbg_mcast(priv, "adding multicast entry for mgid %pI6\n",
mgid.raw);

- nmcast = ipoib_mcast_alloc(dev, 0);
+ nmcast = ipoib_mcast_alloc(dev);
if (!nmcast) {
ipoib_warn(priv, "unable to allocate memory for multicast structure\n");
continue;
--
1.9.1


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