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| author | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2020-05-23 15:27:08 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-23 16:56:17 -0700 |
| commit | cb8a14b205699fee1053a406e1e3fce330b6bdc3 (patch) | |
| tree | 4bd7f26459aed2dd4d419af814499e32ec312880 /net | |
| parent | 7eef3d095abe11fd7f99fa86c0be7c14b8852fae (diff) | |
| download | lwn-cb8a14b205699fee1053a406e1e3fce330b6bdc3.tar.gz lwn-cb8a14b205699fee1053a406e1e3fce330b6bdc3.zip | |
net: move devres helpers into a separate source file
There's currently only a single devres helper in net/ - devm variant
of alloc_etherdev. Let's move it to net/devres.c with the intention of
assing a second one: devm_register_netdev(). This new routine will need
to know the address of the release function of devm_alloc_etherdev() so
that it can verify (using devres_find()) that the struct net_device
that's being passed to it is also resource managed.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/Makefile | 2 | ||||
| -rw-r--r-- | net/devres.c | 36 | ||||
| -rw-r--r-- | net/ethernet/eth.c | 28 |
3 files changed, 37 insertions, 29 deletions
diff --git a/net/Makefile b/net/Makefile index 07ea48160874..5744bf1997fd 100644 --- a/net/Makefile +++ b/net/Makefile @@ -6,7 +6,7 @@ # Rewritten to use lists instead of if-statements. # -obj-$(CONFIG_NET) := socket.o core/ +obj-$(CONFIG_NET) := devres.o socket.o core/ tmp-$(CONFIG_COMPAT) := compat.o obj-$(CONFIG_NET) += $(tmp-y) diff --git a/net/devres.c b/net/devres.c new file mode 100644 index 000000000000..c1465d9f9019 --- /dev/null +++ b/net/devres.c @@ -0,0 +1,36 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * This file contains all networking devres helpers. + */ + +#include <linux/device.h> +#include <linux/etherdevice.h> +#include <linux/netdevice.h> + +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); diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index c8b903302ff2..dac65180c4ef 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -400,34 +400,6 @@ 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); |