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Date: Tue, 15 Oct 2013 19:45:11 +0800
From: Kefeng Wang <wangkefeng.wang@...wei.com>
To: <linux-kernel@...r.kernel.org>
CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"David S. Miller" <davem@...emloft.net>,
Pablo Neira Ayuso <pablo@...filter.org>,
"Stephen Hemminger" <stephen@...workplumber.org>,
Johannes Berg <johannes@...solutions.net>,
"John W. Linville" <linville@...driver.com>,
Stanislaw Gruszka <sgruszka@...hat.com>,
Johannes Berg <johannes.berg@...el.com>,
Francois Romieu <romieu@...zoreil.com>,
"Ben Hutchings" <bhutchings@...arflare.com>,
Chas Williams <chas@....nrl.navy.mil>,
Marc Kleine-Budde <mkl@...gutronix.de>,
Samuel Ortiz <samuel@...tiz.org>,
Paul Mackerras <paulus@...ba.org>,
Oliver Neukum <oneukum@...e.de>,
Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
"Boris Ostrovsky" <boris.ostrovsky@...cle.com>,
David Vrabel <david.vrabel@...rix.com>,
Rusty Russell <rusty@...tcorp.com.au>,
"Michael S. Tsirkin" <mst@...hat.com>, <netfilter@...r.kernel.org>,
<netdev@...r.kernel.org>, <linux-wireless@...r.kernel.org>,
<guohanjun@...wei.com>
Subject: [PATCH 15/18] net: xen: use wrapper functions of net_ratelimit() to simplify code
Wrapper functions net_ratelimited_function() and net_XXX_ratelimited()
are called to simplify code.
Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
drivers/net/xen-netback/netback.c | 21 +++++++++------------
drivers/net/xen-netfront.c | 27 +++++++++------------------
2 files changed, 18 insertions(+), 30 deletions(-)
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index f3e591c..bceb2ad 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -776,10 +776,9 @@ static int xenvif_count_requests(struct xenvif *vif,
* dropped
*/
if (!drop_err && slots >= XEN_NETBK_LEGACY_SLOTS_MAX) {
- if (net_ratelimit())
- netdev_dbg(vif->dev,
- "Too many slots (%d) exceeding limit (%d), dropping packet\n",
- slots, XEN_NETBK_LEGACY_SLOTS_MAX);
+ net_ratelimited_function(netdev_dbg, vif->dev,
+ "Too many slots (%d) exceeding limit (%d), dropping packet\n",
+ slots, XEN_NETBK_LEGACY_SLOTS_MAX);
drop_err = -E2BIG;
}
@@ -799,10 +798,9 @@ static int xenvif_count_requests(struct xenvif *vif,
* Consume all slots and drop the packet.
*/
if (!drop_err && txp->size > first->size) {
- if (net_ratelimit())
- netdev_dbg(vif->dev,
- "Invalid tx request, slot size %u > remaining size %u\n",
- txp->size, first->size);
+ net_ratelimited_function(netdev_dbg, vif->dev,
+ "Invalid tx request, slot size %u > remaining size %u\n",
+ txp->size, first->size);
drop_err = -EIO;
}
@@ -1170,10 +1168,9 @@ static int checksum_setup(struct xenvif *vif, struct sk_buff *skb)
}
break;
default:
- if (net_ratelimit())
- netdev_err(vif->dev,
- "Attempting to checksum a non-TCP/UDP packet, dropping a protocol %d packet\n",
- iph->protocol);
+ net_ratelimited_function(netdev_err, vif->dev,
+ "Attempting to checksum a non-TCP/UDP packet, dropping a protocol %d packet\n",
+ iph->protocol);
goto out;
}
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 36808bf..11eeef1 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -690,8 +690,7 @@ static int xennet_get_extras(struct netfront_info *np,
grant_ref_t ref;
if (unlikely(cons + 1 == rp)) {
- if (net_ratelimit())
- dev_warn(dev, "Missing extra info\n");
+ net_ratelimited_function(dev_warn, dev, "Missing extra info\n");
err = -EBADR;
break;
}
@@ -701,8 +700,7 @@ static int xennet_get_extras(struct netfront_info *np,
if (unlikely(!extra->type ||
extra->type >= XEN_NETIF_EXTRA_TYPE_MAX)) {
- if (net_ratelimit())
- dev_warn(dev, "Invalid extra type: %d\n",
+ net_ratelimited_function(dev_warn, dev, "Invalid extra type: %d\n",
extra->type);
err = -EINVAL;
} else {
@@ -742,8 +740,7 @@ static int xennet_get_responses(struct netfront_info *np,
for (;;) {
if (unlikely(rx->status < 0 ||
rx->offset + rx->status > PAGE_SIZE)) {
- if (net_ratelimit())
- dev_warn(dev, "rx->offset: %x, size: %u\n",
+ net_ratelimited_function(dev_warn, dev, "rx->offset: %x, size: %u\n",
rx->offset, rx->status);
xennet_move_rx_slot(np, skb, ref);
err = -EINVAL;
@@ -756,8 +753,7 @@ static int xennet_get_responses(struct netfront_info *np,
* situation to the system controller to reboot the backend.
*/
if (ref == GRANT_INVALID_REF) {
- if (net_ratelimit())
- dev_warn(dev, "Bad rx response id %d.\n",
+ net_ratelimited_function(dev_warn, dev, "Bad rx response id %d.\n",
rx->id);
err = -EINVAL;
goto next;
@@ -775,8 +771,7 @@ next:
break;
if (cons + slots == rp) {
- if (net_ratelimit())
- dev_warn(dev, "Need more slots\n");
+ net_ratelimited_function(dev_warn, dev, "Need more slots\n");
err = -ENOENT;
break;
}
@@ -788,8 +783,7 @@ next:
}
if (unlikely(slots > max)) {
- if (net_ratelimit())
- dev_warn(dev, "Too many slots\n");
+ net_ratelimited_function(dev_warn, dev, "Too many slots\n");
err = -E2BIG;
}
@@ -803,15 +797,13 @@ static int xennet_set_skb_gso(struct sk_buff *skb,
struct xen_netif_extra_info *gso)
{
if (!gso->u.gso.size) {
- if (net_ratelimit())
- pr_warn("GSO size must not be zero\n");
+ net_warn_ratelimited("GSO size must not be zero\n");
return -EINVAL;
}
/* Currently only TCPv4 S.O. is supported. */
if (gso->u.gso.type != XEN_NETIF_GSO_TYPE_TCPV4) {
- if (net_ratelimit())
- pr_warn("Bad GSO type %d\n", gso->u.gso.type);
+ net_warn_ratelimited("Bad GSO type %d\n", gso->u.gso.type);
return -EINVAL;
}
@@ -910,8 +902,7 @@ static int checksum_setup(struct net_device *dev, struct sk_buff *skb)
}
break;
default:
- if (net_ratelimit())
- pr_err("Attempting to checksum a non-TCP/UDP packet, dropping a protocol %d packet\n",
+ net_err_ratelimited("Attempting to checksum a non-TCP/UDP packet, dropping a protocol %d packet\n",
iph->protocol);
goto out;
}
--
1.8.2.1
--
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