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net: add netdev_lock() / netdev_unlock() helpers

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Add helpers for locking the netdev instance, use it in drivers
and the shaper code. This will make grepping for the lock usage
much easier, as we extend the lock to cover more fields.

Reviewed-by: Joe Damato <jdamato@fastly.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/20250115035319.559603-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski
2025-01-14 19:53:09 -08:00
parent 0b6f6593aa
commit ebda2f0bbd
4 changed files with 63 additions and 44 deletions
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4
drivers/net/netdevsim/ethtool.c
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@@ -108,10 +108,10 @@ nsim_set_channels(struct net_device *dev, struct ethtool_channels *ch)
struct netdevsim *ns = netdev_priv(dev);
int err;
mutex_lock(&dev->lock);
netdev_lock(dev);
err = netif_set_real_num_queues(dev, ch->combined_count,
ch->combined_count);
mutex_unlock(&dev->lock);
netdev_unlock(dev);
if (err)
return err;