linux/include/net/netdev_rx_queue.h
Mina Almasry 52fa3b6532 memory-provider: fix compilation issue without SYSFS
When CONFIG_SYSFS is not set, the kernel fails to compile:

     net/core/page_pool_user.c:368:45: error: implicit declaration of function 'get_netdev_rx_queue_index' [-Werror=implicit-function-declaration]
      368 |                 if (pool->slow.queue_idx == get_netdev_rx_queue_index(rxq)) {
          |                                             ^~~~~~~~~~~~~~~~~~~~~~~~~

When CONFIG_SYSFS is not set, get_netdev_rx_queue_index() is not defined
as well.

Fix by removing the ifdef around get_netdev_rx_queue_index(). It is not
needed anymore after commit e817f85652 ("xdp: generic XDP handling of
xdp_rxq_info") removed most of the CONFIG_SYSFS ifdefs.

Fixes: 0f92140468 ("memory-provider: dmabuf devmem memory provider")
Cc: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Mina Almasry <almasrymina@google.com>
Link: https://patch.msgid.link/20240913032824.2117095-1-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-09-12 21:00:26 -07:00

61 lines
1.4 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_NETDEV_RX_QUEUE_H
#define _LINUX_NETDEV_RX_QUEUE_H
#include <linux/kobject.h>
#include <linux/netdevice.h>
#include <linux/sysfs.h>
#include <net/xdp.h>
#include <net/page_pool/types.h>
/* This structure contains an instance of an RX queue. */
struct netdev_rx_queue {
struct xdp_rxq_info xdp_rxq;
#ifdef CONFIG_RPS
struct rps_map __rcu *rps_map;
struct rps_dev_flow_table __rcu *rps_flow_table;
#endif
struct kobject kobj;
struct net_device *dev;
netdevice_tracker dev_tracker;
#ifdef CONFIG_XDP_SOCKETS
struct xsk_buff_pool *pool;
#endif
/* NAPI instance for the queue
* Readers and writers must hold RTNL
*/
struct napi_struct *napi;
struct pp_memory_provider_params mp_params;
} ____cacheline_aligned_in_smp;
/*
* RX queue sysfs structures and functions.
*/
struct rx_queue_attribute {
struct attribute attr;
ssize_t (*show)(struct netdev_rx_queue *queue, char *buf);
ssize_t (*store)(struct netdev_rx_queue *queue,
const char *buf, size_t len);
};
static inline struct netdev_rx_queue *
__netif_get_rx_queue(struct net_device *dev, unsigned int rxq)
{
return dev->_rx + rxq;
}
static inline unsigned int
get_netdev_rx_queue_index(struct netdev_rx_queue *queue)
{
struct net_device *dev = queue->dev;
int index = queue - dev->_rx;
BUG_ON(index >= dev->num_rx_queues);
return index;
}
int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq);
#endif