linux-stable.git/include/linux/etherdevice.h, branch v5.15.208

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

2024-05-02T14:24:49+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

ethernet: use eth_hw_addr_set() instead of ether_addr_copy()

2023-07-27T06:46:59+00:00

[ Upstream commit f3956ebb3bf06ab2266ad5ee2214aed46405810c ]

Convert Ethernet from ether_addr_copy() to eth_hw_addr_set():

  @@
  expression dev, np;
  @@
  - ether_addr_copy(dev->dev_addr, np)
  + eth_hw_addr_set(dev, np)

Signed-off-by: Jakub Kicinski 
Signed-off-by: David S. Miller 
Stable-dep-of: 1d6d537dc55d ("net: ethernet: mtk_eth_soc: handle probe deferral")
Signed-off-by: Sasha Levin

etherdevice: Adjust ether_addr* prototypes to silence -Wstringop-overead

2022-04-27T12:38:50+00:00

commit 2618a0dae09ef37728dab89ff60418cbe25ae6bd upstream.

With GCC 12, -Wstringop-overread was warning about an implicit cast from
char[6] to char[8]. However, the extra 2 bytes are always thrown away,
alignment doesn't matter, and the risk of hitting the edge of unallocated
memory has been accepted, so this prototype can just be converted to a
regular char *. Silences:

net/core/dev.c: In function ‘bpf_prog_run_generic_xdp’: net/core/dev.c:4618:21: warning: ‘ether_addr_equal_64bits’ reading 8 bytes from a region of size 6 [-Wstringop-overread]
 4618 |         orig_host = ether_addr_equal_64bits(eth->h_dest, > skb->dev->dev_addr);
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/core/dev.c:4618:21: note: referencing argument 1 of type ‘const u8[8]’ {aka ‘const unsigned char[8]’}
net/core/dev.c:4618:21: note: referencing argument 2 of type ‘const u8[8]’ {aka ‘const unsigned char[8]’}
In file included from net/core/dev.c:91: include/linux/etherdevice.h:375:20: note: in a call to function ‘ether_addr_equal_64bits’
  375 | static inline bool ether_addr_equal_64bits(const u8 addr1[6+2],
      |                    ^~~~~~~~~~~~~~~~~~~~~~~

Reported-by: Marc Kleine-Budde 
Tested-by: Marc Kleine-Budde 
Link: https://lore.kernel.org/netdev/20220212090811.uuzk6d76agw2vv73@pengutronix.de
Cc: Jakub Kicinski 
Cc: "David S. Miller" 
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook 
Signed-off-by: David S. Miller 
Cc: Khem Raj 
Signed-off-by: Greg Kroah-Hartman

etherdevice: use __dev_addr_set()

2021-10-05T11:38:39+00:00

Andrew points out that eth_hw_addr_set() replaces memcpy()
calls so we can't use ether_addr_copy() which assumes
both arguments are 2-bytes aligned.

Reported-by: Andrew Lunn 
Signed-off-by: Jakub Kicinski 
Signed-off-by: David S. Miller

net: create netdev->dev_addr assignment helpers

2021-09-05T19:58:50+00:00

Recent work on converting address list to a tree made it obvious
we need an abstraction around writing netdev->dev_addr. Without
such abstraction updating the main device address is invisible
to the core.

Introduce a number of helpers which for now just wrap memcpy()
but in the future can make necessary changes to the address
tree.

Signed-off-by: Jakub Kicinski 
Signed-off-by: David S. Miller

ethernet: constify eth_get_headlen()'s data argument

2021-03-14T21:48:02+00:00

It's used only for flow dissection, which now takes constant data
pointers.

Signed-off-by: Alexander Lobakin 
Signed-off-by: David S. Miller

linux/etherdevice.h: misc trailing whitespace cleanup

2021-03-14T21:48:02+00:00

Caught by the text editor. Fix it separately from the actual changes.

Signed-off-by: Alexander Lobakin 
Signed-off-by: David S. Miller

net: add helper eth_hw_addr_crc

2020-05-04T18:19:58+00:00

Several drivers use the same code as basis for filter hashes. Therefore
let's factor it out to a helper. This way drivers don't have to access
struct netdev_hw_addr internals.

Signed-off-by: Heiner Kallweit 
Signed-off-by: David S. Miller

net: remove eth_change_mtu

2020-01-27T10:09:31+00:00

All usage of this function was removed three years ago, and the
function was marked as deprecated:
a52ad514fdf3 ("net: deprecate eth_change_mtu, remove usage")
So I think we can remove it now.

Signed-off-by: Heiner Kallweit 
Signed-off-by: David S. Miller

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32+00:00

Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman