kernel/linux.git/net/ethernet, branch v6.6.131

ethernet: Extend device_get_mac_address() to use NVMEM

2025-11-24T09:29:39+00:00

[ Upstream commit d2d3f529e7b6ff2aa432b16a2317126621c28058 ] A lot of modern SoC have the ability to store MAC addresses in their NVMEM. So extend the generic function device_get_mac_address() to obtain the MAC address from an nvmem cell named 'mac-address' in case there is no firmware node which contains the MAC address directly. Signed-off-by: Stefan Wahren Reviewed-by: Andrew Lunn Link: https://patch.msgid.link/20250912140332.35395-3-wahrenst@gmx.net Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

ethernet: Add helper for assigning packet type when dest address does not match device address

2024-05-02T14:32:46+00:00

commit 6e159fd653d7ebf6290358e0330a0cb8a75cf73b upstream. Enable reuse of logic in eth_type_trans for determining packet type. Suggested-by: Sabrina Dubroca Cc: stable@vger.kernel.org Signed-off-by: Rahul Rameshbabu Reviewed-by: Sabrina Dubroca Link: https://lore.kernel.org/r/20240423181319.115860-3-rrameshbabu@nvidia.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman

net: ethernet: use sysfs_emit() to instead of scnprintf()

2022-12-08T04:02:44+00:00

Follow the advice of the Documentation/filesystems/sysfs.rst and show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: ye xingchen Reviewed-by: Leon Romanovsky Link: https://lore.kernel.org/r/202212051918564721658@zte.com.cn Signed-off-by: Jakub Kicinski

net: gro: skb_gro_header helper function

2022-08-25T08:33:21+00:00

Introduce a simple helper function to replace a common pattern. When accessing the GRO header, we fetch the pointer from frag0, then test its validity and fetch it from the skb when necessary. This leads to the pattern skb_gro_header_fast -> skb_gro_header_hard -> skb_gro_header_slow recurring many times throughout GRO code. This patch replaces these patterns with a single inlined function call, improving code readability. Signed-off-by: Richard Gobert Reviewed-by: Eric Dumazet Link: https://lore.kernel.org/r/20220823071034.GA56142@debian Signed-off-by: Paolo Abeni

net: ethernet: set default assignment identifier to NET_NAME_ENUM

2022-04-08T04:04:03+00:00

As noted in the original commit 685343fc3ba6 ("net: add name_assign_type netdev attribute") ... when the kernel has given the interface a name using global device enumeration based on order of discovery (ethX, wlanY, etc) ... are labelled NET_NAME_ENUM. That describes this case, so set the default for the devices here to NET_NAME_ENUM. Current popular network setup tools like systemd use this only to warn if you're setting static settings on interfaces that might change, so it is expected this only leads to better user information, but not changing of interfaces, etc. Signed-off-by: Ian Wienand Link: https://lore.kernel.org/r/20220406093635.1601506-1-iwienand@redhat.com Signed-off-by: Jakub Kicinski

gro: remove rcu_read_lock/rcu_read_unlock from gro_complete handlers

2021-11-25T01:21:42+00:00

All gro_complete() handlers are called from napi_gro_complete() while rcu_read_lock() has been called. There is no point stacking more rcu_read_lock() Signed-off-by: Eric Dumazet Signed-off-by: Jakub Kicinski

gro: remove rcu_read_lock/rcu_read_unlock from gro_receive handlers

2021-11-25T01:21:42+00:00

All gro_receive() handlers are called from dev_gro_receive() while rcu_read_lock() has been called. There is no point stacking more rcu_read_lock() Signed-off-by: Eric Dumazet Signed-off-by: Jakub Kicinski

eth: platform: add a helper for loading netdev->dev_addr

2021-10-08T13:54:33+00:00

Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. There is a handful of drivers which pass netdev->dev_addr as the destination buffer to eth_platform_get_mac_address(). Add a helper which takes a dev pointer instead, so it can call an appropriate helper. Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller

ethernet: un-export nvmem_get_mac_address()

2021-10-08T13:54:33+00:00

nvmem_get_mac_address() is only called from of_net.c we don't need the export. Signed-off-by: Jakub Kicinski Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

eth: fwnode: add a helper for loading netdev->dev_addr

2021-10-07T12:39:51+00:00

Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. There is a handful of drivers which pass netdev->dev_addr as the destination buffer to device_get_mac_address(). Add a helper which takes a dev pointer instead, so it can call an appropriate helper. Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller