kernel/linux.git/drivers/net/ifb.c, branch v5.15.208

ifb: fix building without CONFIG_NET_CLS_ACT

2021-11-18T18:16:04+00:00

commit 7444d706be31753f65052c7f6325fc8470cc1789 upstream. The driver no longer depends on this option, but it fails to build if it's disabled because the skb->tc_skip_classify is hidden behind an #ifdef: drivers/net/ifb.c:81:8: error: no member named 'tc_skip_classify' in 'struct sk_buff' skb->tc_skip_classify = 1; Use the same #ifdef around the assignment. Fixes: 046178e726c2 ("ifb: Depend on netfilter alternatively to tc") Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

ifb: remove leading spaces before tabs

2021-05-20T22:10:57+00:00

There are a few leading spaces before tabs and remove it by running the following commard: $ find . -name '*.[ch]' | xargs sed -r -i 's/^[ ]+\t/\t/' Signed-off-by: Hui Tang Signed-off-by: David S. Miller

ifb: use new tasklet API

2021-02-02T23:51:18+00:00

This converts the driver to use the new tasklet API introduced in commit 12cc923f1ccc ("tasklet: Introduce new initialization API") Signed-off-by: Emil Renner Berthing Signed-off-by: Jakub Kicinski

net: bonding, dummy, ifb, team: advertise NETIF_F_GSO_SOFTWARE

2020-11-04T00:53:55+00:00

Virtual netdevs should use NETIF_F_GSO_SOFTWARE to forward GSO skbs as-is and let the final drivers deal with them when supported. Also remove NETIF_F_GSO_UDP_L4 from bonding and team drivers as it's now included in the "software" list. Suggested-by: Willem de Bruijn Signed-off-by: Alexander Lobakin Acked-by: Willem de Bruijn Signed-off-by: Jakub Kicinski

net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} build

2020-03-25T19:24:33+00:00

net/netfilter/nft_fwd_netdev.c: In function ‘nft_fwd_netdev_eval’: net/netfilter/nft_fwd_netdev.c:32:10: error: ‘struct sk_buff’ has no member named ‘tc_redirected’ pkt->skb->tc_redirected = 1; ^~ net/netfilter/nft_fwd_netdev.c:33:10: error: ‘struct sk_buff’ has no member named ‘tc_from_ingress’ pkt->skb->tc_from_ingress = 1; ^~ To avoid a direct dependency with tc actions from netfilter, wrap the redirect bits around CONFIG_NET_REDIRECT and move helpers to include/linux/skbuff.h. Turn on this toggle from the ifb driver, the only existing client of these bits in the tree. This patch adds skb_set_redirected() that sets on the redirected bit on the skbuff, it specifies if the packet was redirect from ingress and resets the timestamp (timestamp reset was originally missing in the netfilter bugfix). Fixes: bcfabee1afd99484 ("netfilter: nft_fwd_netdev: allow to redirect to ifb via ingress") Reported-by: noreply@ellerman.id.au Reported-by: Geert Uytterhoeven Signed-off-by: Pablo Neira Ayuso 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

ifb: fix packets checksum

2018-05-29T03:02:22+00:00

Fixup the checksum for CHECKSUM_COMPLETE when pulling skbs on RX path. Otherwise we get splats when tc mirred is used to redirect packets to ifb. Before fix: nic: hw csum failure Signed-off-by: Jon Maxwell Signed-off-by: David S. Miller

net: Do not take net_rwsem in __rtnl_link_unregister()

2018-04-01T02:24:58+00:00

This function calls call_netdevice_notifier(), which also may take net_rwsem. So, we can't use net_rwsem here. This patch makes callers of this functions take pernet_ops_rwsem, like register_netdevice_notifier() does. This will protect the modifications of net_namespace_list, and allows notifiers to take it (they won't have to care about context). Since __rtnl_link_unregister() is used on module load and unload (which are not frequent operations), this looks for me better, than make all call_netdevice_notifier() always executing in "protected net_namespace_list" context. Also, this fixes the problem we had a deal in 328fbe747ad4 "Close race between {un, }register_netdevice_notifier and ...", and guarantees __rtnl_link_unregister() does not skip exitting net. Signed-off-by: Kirill Tkhai Signed-off-by: David S. Miller

net: remove MTU limits for dummy and ifb device

2017-09-25T23:26:09+00:00

These two drivers (dummy and ifb) call ether_setup(), after commit 61e84623ace3 ("net: centralize net_device min/max MTU checking"), the range of mtu is [min_mtu, max_mtu], which is [68, 1500] by default. These two devices should not have limits on MTU. This patch set their min_mtu/max_mtu to 0. So that dev_set_mtu() will not check the mtu range, and can be set with any value. CC: Eric Dumazet CC: Sabrina Dubroca Signed-off-by: Zhang Shengju Signed-off-by: David S. Miller

net: add netlink_ext_ack argument to rtnl_link_ops.validate

2017-06-27T03:13:22+00:00

Add support for extended error reporting. Signed-off-by: Matthias Schiffer Acked-by: David Ahern Signed-off-by: David S. Miller