From 40be0dda0725886b623d67868db3219a2e74683b Mon Sep 17 00:00:00 2001 From: Rafał Miłecki Date: Sat, 28 Jan 2017 15:15:42 +0100 Subject: net: add devm version of alloc_etherdev_mqs function MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch adds devm_alloc_etherdev_mqs function and devm_alloc_etherdev macro. These can be used for simpler netdev allocation without having to care about calling free_netdev. Thanks to this change drivers, their error paths and removal paths may get simpler by a bit. Signed-off-by: Rafał Miłecki Signed-off-by: David S. Miller --- net/ethernet/eth.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'net/ethernet') diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index 8c5a479681ca..efdaaab735fc 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -392,6 +392,34 @@ struct net_device *alloc_etherdev_mqs(int sizeof_priv, unsigned int txqs, } EXPORT_SYMBOL(alloc_etherdev_mqs); +static void devm_free_netdev(struct device *dev, void *res) +{ + free_netdev(*(struct net_device **)res); +} + +struct net_device *devm_alloc_etherdev_mqs(struct device *dev, int sizeof_priv, + unsigned int txqs, unsigned int rxqs) +{ + struct net_device **dr; + struct net_device *netdev; + + dr = devres_alloc(devm_free_netdev, sizeof(*dr), GFP_KERNEL); + if (!dr) + return NULL; + + netdev = alloc_etherdev_mqs(sizeof_priv, txqs, rxqs); + if (!netdev) { + devres_free(dr); + return NULL; + } + + *dr = netdev; + devres_add(dev, dr); + + return netdev; +} +EXPORT_SYMBOL(devm_alloc_etherdev_mqs); + ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len) { return scnprintf(buf, PAGE_SIZE, "%*phC\n", len, addr); -- cgit v1.2.3-59-g8ed1b