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Code Issues Releases Wiki Activity

um: vector: remove vp->lock

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This lock is useless, all the places that are using
it for some locking will already hold the RTNL. Just
remove it.

Link: https://patch.msgid.link/20240703184606.19aa35b14959.I9cf5f2c4e35abd06cc89bf2e990fa755eb8e5f0f@changeid
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2024-07-03 18:46:07 +02:00
parent 86abcd6eeb
commit a0470a9f69
2 changed files with 1 additions and 16 deletions
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16
arch/um/drivers/vector_kern.c
View file

@ -1115,7 +1115,6 @@ static int irq_rr;
static int vector_net_close(struct net_device *dev)
{
struct vector_private *vp = netdev_priv(dev);
unsigned long flags;
netif_stop_queue(dev);
del_timer(&vp->tl);
@ -1158,10 +1157,8 @@ static int vector_net_close(struct net_device *dev)
destroy_queue(vp->tx_queue);
kfree(vp->fds);
vp->fds = NULL;
spin_lock_irqsave(&vp->lock, flags);
vp->opened = false;
vp->in_error = false;
spin_unlock_irqrestore(&vp->lock, flags);
return 0;
}
@ -1203,17 +1200,12 @@ static void vector_reset_tx(struct work_struct *work)
static int vector_net_open(struct net_device *dev)
{
struct vector_private *vp = netdev_priv(dev);
unsigned long flags;
int err = -EINVAL;
struct vector_device *vdevice;
spin_lock_irqsave(&vp->lock, flags);
if (vp->opened) {
spin_unlock_irqrestore(&vp->lock, flags);
if (vp->opened)
return -ENXIO;
}
vp->opened = true;
spin_unlock_irqrestore(&vp->lock, flags);
vp->bpf = uml_vector_user_bpf(get_bpf_file(vp->parsed));
@ -1387,8 +1379,6 @@ static int vector_net_load_bpf_flash(struct net_device *dev,
return -1;
}
spin_lock(&vp->lock);
if (vp->bpf != NULL) {
if (vp->opened)
uml_vector_detach_bpf(vp->fds->rx_fd, vp->bpf);
@ -1417,15 +1407,12 @@ static int vector_net_load_bpf_flash(struct net_device *dev,
if (vp->opened)
result = uml_vector_attach_bpf(vp->fds->rx_fd, vp->bpf);
spin_unlock(&vp->lock);
return result;
free_buffer:
release_firmware(fw);
flash_fail:
spin_unlock(&vp->lock);
if (vp->bpf != NULL)
kfree(vp->bpf->filter);
kfree(vp->bpf);
@ -1631,7 +1618,6 @@ static void vector_eth_configure(
INIT_WORK(&vp->reset_tx, vector_reset_tx);
timer_setup(&vp->tl, vector_timer_expire, 0);
spin_lock_init(&vp->lock);
/* FIXME */
dev->netdev_ops = &vector_netdev_ops;

1
arch/um/drivers/vector_kern.h
View file

@ -71,7 +71,6 @@ struct vector_estats {
struct vector_private {
struct list_head list;
spinlock_t lock;
struct net_device *dev;
struct napi_struct napi ____cacheline_aligned;