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Message-ID: <20240209203428.307351-10-edumazet@google.com>
Date: Fri, 9 Feb 2024 20:34:24 +0000
From: Eric Dumazet <edumazet@...gle.com>
To: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, eric.dumazet@...il.com,
Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH v3 net-next 09/13] net: remove stale mentions of dev_base_lock
in comments
Change comments incorrectly mentioning dev_base_lock.
Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
Documentation/networking/netdevices.rst | 4 ++--
drivers/net/ethernet/cisco/enic/enic_main.c | 2 +-
drivers/net/ethernet/nvidia/forcedeth.c | 4 ++--
drivers/net/ethernet/sfc/efx_common.c | 2 +-
drivers/net/ethernet/sfc/falcon/efx.c | 2 +-
drivers/net/ethernet/sfc/siena/efx_common.c | 2 +-
6 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/Documentation/networking/netdevices.rst b/Documentation/networking/netdevices.rst
index 9e4cccb90b8700aea49bb586ca0da79f2fe185b9..c2476917a6c37d9b87e8b5d59f2e00fa0a30e26a 100644
--- a/Documentation/networking/netdevices.rst
+++ b/Documentation/networking/netdevices.rst
@@ -252,8 +252,8 @@ ndo_eth_ioctl:
Context: process
ndo_get_stats:
- Synchronization: rtnl_lock() semaphore, dev_base_lock rwlock, or RCU.
- Context: atomic (can't sleep under rwlock or RCU)
+ Synchronization: rtnl_lock() semaphore, or RCU.
+ Context: atomic (can't sleep under RCU)
ndo_start_xmit:
Synchronization: __netif_tx_lock spinlock.
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 37bd38d772e80967e50342f8b87dfa331192c5a0..d266a87297a5e3a5281acda9243a024fc2f7d742 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -872,7 +872,7 @@ static netdev_tx_t enic_hard_start_xmit(struct sk_buff *skb,
return NETDEV_TX_OK;
}
-/* dev_base_lock rwlock held, nominally process context */
+/* rcu_read_lock potentially held, nominally process context */
static void enic_get_stats(struct net_device *netdev,
struct rtnl_link_stats64 *net_stats)
{
diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index 7a549b834e970a5ac40330513e3220466d78acef..31f896c4aa266032cbabdd3c0086eae5969d203a 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -1761,7 +1761,7 @@ static void nv_get_stats(int cpu, struct fe_priv *np,
/*
* nv_get_stats64: dev->ndo_get_stats64 function
* Get latest stats value from the nic.
- * Called with read_lock(&dev_base_lock) held for read -
+ * Called with rcu_read_lock() held -
* only synchronized against unregister_netdevice.
*/
static void
@@ -3090,7 +3090,7 @@ static void set_bufsize(struct net_device *dev)
/*
* nv_change_mtu: dev->change_mtu function
- * Called with dev_base_lock held for read.
+ * Called with RTNL held for read.
*/
static int nv_change_mtu(struct net_device *dev, int new_mtu)
{
diff --git a/drivers/net/ethernet/sfc/efx_common.c b/drivers/net/ethernet/sfc/efx_common.c
index 175bd9cdfdac3ac8183e52f2e76b99839b9c2ed7..551f890db90a609319dca95af9b464bddb252121 100644
--- a/drivers/net/ethernet/sfc/efx_common.c
+++ b/drivers/net/ethernet/sfc/efx_common.c
@@ -595,7 +595,7 @@ void efx_stop_all(struct efx_nic *efx)
efx_stop_datapath(efx);
}
-/* Context: process, dev_base_lock or RTNL held, non-blocking. */
+/* Context: process, rcu_read_lock or RTNL held, non-blocking. */
void efx_net_stats(struct net_device *net_dev, struct rtnl_link_stats64 *stats)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
diff --git a/drivers/net/ethernet/sfc/falcon/efx.c b/drivers/net/ethernet/sfc/falcon/efx.c
index e001f27085c6614374a0e5e1493b215d6c55e9db..1cb32aedd89c7393c7881efb11963cf334bca3ae 100644
--- a/drivers/net/ethernet/sfc/falcon/efx.c
+++ b/drivers/net/ethernet/sfc/falcon/efx.c
@@ -2085,7 +2085,7 @@ int ef4_net_stop(struct net_device *net_dev)
return 0;
}
-/* Context: process, dev_base_lock or RTNL held, non-blocking. */
+/* Context: process, rcu_read_lock or RTNL held, non-blocking. */
static void ef4_net_stats(struct net_device *net_dev,
struct rtnl_link_stats64 *stats)
{
diff --git a/drivers/net/ethernet/sfc/siena/efx_common.c b/drivers/net/ethernet/sfc/siena/efx_common.c
index e4b294b8e9acb15f68b6597047d493add699196f..88e5bc347a44cea66e36dcc6afe10ef10c1383fa 100644
--- a/drivers/net/ethernet/sfc/siena/efx_common.c
+++ b/drivers/net/ethernet/sfc/siena/efx_common.c
@@ -605,7 +605,7 @@ static size_t efx_siena_update_stats_atomic(struct efx_nic *efx, u64 *full_stats
return efx->type->update_stats(efx, full_stats, core_stats);
}
-/* Context: process, dev_base_lock or RTNL held, non-blocking. */
+/* Context: process, rcu_read_lock or RTNL held, non-blocking. */
void efx_siena_net_stats(struct net_device *net_dev,
struct rtnl_link_stats64 *stats)
{
--
2.43.0.687.g38aa6559b0-goog
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