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net: refactor netdev_rx_queue_restart() to use local qops

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Shorten the lines by storing dev->queue_mgmt_ops in a temp variable.

Reviewed-by: Mina Almasry <almasrymina@google.com>
Link: https://patch.msgid.link/20250206225638.1387810-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2025-02-06 14:56:35 -08:00
parent 6a0ca73e51
commit 1eb824d69f
1 changed files with 12 additions and 13 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

25
net/core/netdev_rx_queue.c
View file

@ -10,28 +10,27 @@
int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq_idx) int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq_idx)
{ {
struct netdev_rx_queue *rxq = __netif_get_rx_queue(dev, rxq_idx); struct netdev_rx_queue *rxq = __netif_get_rx_queue(dev, rxq_idx);
const struct netdev_queue_mgmt_ops *qops = dev->queue_mgmt_ops;
void *new_mem, *old_mem; void *new_mem, *old_mem;
int err; int err;
if (!dev->queue_mgmt_ops || !dev->queue_mgmt_ops->ndo_queue_stop || if (!qops || !qops->ndo_queue_stop || !qops->ndo_queue_mem_free ||
!dev->queue_mgmt_ops->ndo_queue_mem_free || !qops->ndo_queue_mem_alloc || !qops->ndo_queue_start)
!dev->queue_mgmt_ops->ndo_queue_mem_alloc ||
!dev->queue_mgmt_ops->ndo_queue_start)
return -EOPNOTSUPP; return -EOPNOTSUPP;
ASSERT_RTNL(); ASSERT_RTNL();
new_mem = kvzalloc(dev->queue_mgmt_ops->ndo_queue_mem_size, GFP_KERNEL); new_mem = kvzalloc(qops->ndo_queue_mem_size, GFP_KERNEL);
if (!new_mem) if (!new_mem)
return -ENOMEM; return -ENOMEM;
old_mem = kvzalloc(dev->queue_mgmt_ops->ndo_queue_mem_size, GFP_KERNEL); old_mem = kvzalloc(qops->ndo_queue_mem_size, GFP_KERNEL);
if (!old_mem) { if (!old_mem) {
err = -ENOMEM; err = -ENOMEM;
goto err_free_new_mem; goto err_free_new_mem;
} }
err = dev->queue_mgmt_ops->ndo_queue_mem_alloc(dev, new_mem, rxq_idx); err = qops->ndo_queue_mem_alloc(dev, new_mem, rxq_idx);
if (err) if (err)
goto err_free_old_mem; goto err_free_old_mem;
@ -39,15 +38,15 @@ int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq_idx)
if (err) if (err)
goto err_free_new_queue_mem; goto err_free_new_queue_mem;
err = dev->queue_mgmt_ops->ndo_queue_stop(dev, old_mem, rxq_idx); err = qops->ndo_queue_stop(dev, old_mem, rxq_idx);
if (err) if (err)
goto err_free_new_queue_mem; goto err_free_new_queue_mem;
err = dev->queue_mgmt_ops->ndo_queue_start(dev, new_mem, rxq_idx); err = qops->ndo_queue_start(dev, new_mem, rxq_idx);
if (err) if (err)
goto err_start_queue; goto err_start_queue;
dev->queue_mgmt_ops->ndo_queue_mem_free(dev, old_mem); qops->ndo_queue_mem_free(dev, old_mem);
kvfree(old_mem); kvfree(old_mem);
kvfree(new_mem); kvfree(new_mem);
@ -62,15 +61,15 @@ int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq_idx)
* WARN if we fail to recover the old rx queue, and at least free * WARN if we fail to recover the old rx queue, and at least free
* old_mem so we don't also leak that. * old_mem so we don't also leak that.
*/ */
if (dev->queue_mgmt_ops->ndo_queue_start(dev, old_mem, rxq_idx)) { if (qops->ndo_queue_start(dev, old_mem, rxq_idx)) {
WARN(1, WARN(1,
"Failed to restart old queue in error path. RX queue %d may be unhealthy.", "Failed to restart old queue in error path. RX queue %d may be unhealthy.",
rxq_idx); rxq_idx);
dev->queue_mgmt_ops->ndo_queue_mem_free(dev, old_mem); qops->ndo_queue_mem_free(dev, old_mem);
} }
err_free_new_queue_mem: err_free_new_queue_mem:
dev->queue_mgmt_ops->ndo_queue_mem_free(dev, new_mem); qops->ndo_queue_mem_free(dev, new_mem);
err_free_old_mem: err_free_old_mem:
kvfree(old_mem); kvfree(old_mem);