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OpenCloudOS-Kernel
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OpenCloudOS-Kernel/drivers/net
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Leesoo Ahn fb59bf28cd usbnet: optimize usbnet_bh() to reduce CPU load 
The current source pushes skb into dev-done queue by calling
skb_dequeue_tail() and then pop it by skb_dequeue() to branch to
rx_cleanup state for freeing urb/skb in usbnet_bh(). It takes extra CPU
load, 2.21% (skb_queue_tail) as follows,

-   11.58%     0.26%  swapper          [k] usbnet_bh
   - 11.32% usbnet_bh
      - 6.43% skb_dequeue
           6.34% _raw_spin_unlock_irqrestore
      - 2.21% skb_queue_tail
           2.19% _raw_spin_unlock_irqrestore
      - 1.68% consume_skb
         - 0.97% kfree_skbmem
              0.80% kmem_cache_free
           0.53% skb_release_data

To reduce the extra CPU load use return values to call helper function
usb_free_skb() to free the resources instead of calling skb_queue_tail()
and skb_dequeue() for push and pop respectively.

-    7.87%     0.25%  swapper          [k] usbnet_bh
   - 7.62% usbnet_bh
      - 4.81% skb_dequeue
           4.74% _raw_spin_unlock_irqrestore
      - 1.75% consume_skb
         - 0.98% kfree_skbmem
              0.78% kmem_cache_free
           0.58% skb_release_data
        0.53% smsc95xx_rx_fixup

Signed-off-by: Leesoo Ahn <lsahn@ooseel.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2023-01-09 07:23:54 +00:00
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appletalk
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arcnet arcnet: fix potential memory leak in com20020_probe() 2022-11-23 12:41:54 +00:00
bonding drivers/net/bonding/bond_3ad: return when there's no aggregator 2023-01-03 09:17:12 +00:00
caif
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can can: kvaser_usb: hydra: help gcc-13 to figure out cmd_len 2022-12-19 16:08:27 +01:00
dsa net: dsa: qca8k: improve mdio master read/write by using single lo/hi 2023-01-01 09:27:12 +00:00
ethernet net: ngbe: Remove structure ngbe_adapter 2023-01-06 19:37:59 -08:00
fddi net: defxx: Fix missing err handling in dfx_init() 2022-12-09 10:44:27 +00:00
fjes ACPI: make remove callback of ACPI driver void 2022-11-23 19:11:22 +01:00
hamradio hamradio: baycom_epp: Do not use x86-specific rdtsc() 2022-12-19 09:27:10 +00:00
hippi
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hyperv net: Remove the obsolte u64_stats_fetch_*_irq() users (drivers). 2022-10-28 20:13:54 -07:00
ieee802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-12-08 18:19:59 -08:00
ipa net: ipa: don't maintain IPA interrupt handler array 2023-01-05 22:03:14 -08:00
ipvlan Driver Core changes for 6.2-rc1 2022-12-16 03:54:54 -08:00
mctp mctp: serial: Fix starting value for frame check sequence 2022-12-19 12:38:45 +00:00
mdio net: mdio: fix unbalanced fwnode reference count in mdio_device_release() 2022-12-06 12:50:00 +01:00
netdevsim netdevsim: move devlink registration under the instance lock 2023-01-06 12:56:19 +00:00
pcs net: pcs: altera-tse: remove unnecessary register definitions 2022-11-29 20:29:55 -08:00
phy net: phy: micrel: Fix warn: passing zero to PTR_ERR 2023-01-09 07:21:42 +00:00
plip net: plip: don't call kfree_skb/dev_kfree_skb() under spin_lock_irq() 2022-12-07 20:10:47 -08:00
ppp Networking changes for 6.2. 2022-12-13 15:47:48 -08:00
pse-pd
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slip
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team Networking changes for 6.2. 2022-12-13 15:47:48 -08:00
usb usbnet: optimize usbnet_bh() to reduce CPU load 2023-01-09 07:23:54 +00:00
vmxnet3 vmxnet3: correctly report csum_level for encapsulated packet 2022-12-21 17:55:30 -08:00
vxlan vxlan: Fix memory leaks in error path 2023-01-02 13:37:33 +00:00
wan net: farsync: Fix kmemleak when rmmods farsync 2022-12-12 09:42:45 +00:00
wireguard wireguard: timers: cast enum limits members to int in prints 2022-12-13 19:30:45 -08:00
wireless Including fixes from bpf, wifi, and netfilter. 2023-01-05 12:40:50 -08:00
wwan Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-12-08 18:19:59 -08:00
xen-netback xen/netback: fix build warning 2022-12-07 16:03:21 +01:00
Kconfig
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LICENSE.SRC
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Makefile
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Space.c
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amt.c
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bareudp.c
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dummy.c ethtool: doc: clarify what drivers can implement in their get_drvinfo() 2022-11-17 19:26:02 -08:00
eql.c
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geneve.c rtnetlink: pass netlink message header and portid to rtnl_configure_link() 2022-10-31 18:10:21 -07:00
gtp.c
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ifb.c net: Remove the obsolte u64_stats_fetch_*_irq() users (drivers). 2022-10-28 20:13:54 -07:00
loopback.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-11-29 13:04:52 -08:00
macsec.c net: macsec: fix net device access prior to holding a lock 2022-12-13 18:58:08 -08:00
macvlan.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-11-17 18:30:39 -08:00
macvtap.c driver core: class: make namespace and get_ownership take const * 2022-11-09 15:49:32 +01:00
mdio.c
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mhi_net.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-11-17 18:30:39 -08:00
mii.c
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net_failover.c
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netconsole.c netconsole: avoid CON_ENABLED misuse to track registration 2022-12-02 11:25:02 +01:00
nlmon.c
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ntb_netdev.c ntb_netdev: Use dev_kfree_skb_any() in interrupt context 2022-12-12 12:56:37 -08:00
rionet.c
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sb1000.c
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sungem_phy.c
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tap.c driver/net/tun: Added features for USO. 2022-12-12 09:29:56 +00:00
thunderbolt.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-12-08 18:19:59 -08:00
tun.c driver/net/tun: Added features for USO. 2022-12-12 09:29:56 +00:00
veth.c veth: Fix race with AF_XDP exposing old or uninitialized descriptors 2022-12-22 15:06:10 +01:00
virtio_net.c drivers/net/virtio_net.c: Added USO support. 2022-12-12 09:29:56 +00:00
vrf.c net: vrf: determine the dst using the original ifindex for multicast 2022-12-21 17:47:37 -08:00
vsockmon.c
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xen-netfront.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-12-08 18:19:59 -08:00