On Tue, Sep 22, 2015 at 6:53 AM, Jiri Pirko <j...@resnulli.us> wrote:
> From: Jiri Pirko <j...@mellanox.com>
>
> Now, the memory allocation in prepare/commit state is done separatelly
> in each driver (rocker). Introduce the similar mechanism in generic
> switchdev code, in form of queue. That can be used not only for memory
> allocations, but also for different items. Commit/abort item destruction
> is handled as well.
>
> Signed-off-by: Jiri Pirko <j...@mellanox.com>
> diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
> index df5a544..55a8411 100644
> --- a/net/switchdev/switchdev.c
> +++ b/net/switchdev/switchdev.c
> @@ -1,6 +1,6 @@
> /*
> * net/switchdev/switchdev.c - Switch device API
> - * Copyright (c) 2014 Jiri Pirko <j...@resnulli.us>
> + * Copyright (c) 2014-2015 Jiri Pirko <j...@resnulli.us>
> * Copyright (c) 2014-2015 Scott Feldman <sfel...@gmail.com>
> *
> * This program is free software; you can redistribute it and/or modify
> @@ -16,9 +16,56 @@
> #include <linux/notifier.h>
> #include <linux/netdevice.h>
> #include <linux/if_bridge.h>
> +#include <linux/list.h>
> #include <net/ip_fib.h>
> #include <net/switchdev.h>
>
> +void switchdev_trans_item_enqueue(struct switchdev_trans *trans,
> + void *data, void (*destructor)(void const
> *),
> + struct switchdev_trans_item *tritem)
> +{
> + tritem->data = data;
> + tritem->destructor = destructor;
> + list_add_tail(&tritem->list, &trans->item_list);
> +}
> +EXPORT_SYMBOL_GPL(switchdev_trans_item_enqueue);
> +
> +static struct switchdev_trans_item *
> +__switchdev_trans_item_dequeue(struct switchdev_trans *trans)
> +{
> + struct switchdev_trans_item *tritem;
> +
> + if (list_empty(&trans->item_list))
> + return NULL;
> + tritem = list_first_entry(&trans->item_list,
> + struct switchdev_trans_item, list);
> + list_del(&tritem->list);
> + return tritem;
> +}
> +
> +void *switchdev_trans_item_dequeue(struct switchdev_trans *trans)
> +{
> + struct switchdev_trans_item *tritem;
> +
> + tritem = __switchdev_trans_item_dequeue(trans);
> + BUG_ON(!tritem);
> + return tritem->data;
> +}
> +EXPORT_SYMBOL_GPL(switchdev_trans_item_dequeue);
Please add header comment block for these EXPORT_SYMBOL_GPL funcs.
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