kernel/linux.git/drivers/net/team/team_mode_random.c, branch v7.1

net: team: Rename enablement functions and struct members to tx

2026-04-13T13:09:49+00:00

Add no functional changes, but rename enablement functions, variables etc. that are used in teaming driver transmit decisions. Since rx and tx enablement are still coupled, some of the variables renamed in this patch are still used for the rx path, but that will change in a follow-up patch. Reviewed-by: Jiri Pirko Signed-off-by: Marc Harvey Reviewed-by: Kuniyuki Iwashima Link: https://patch.msgid.link/20260409-teaming-driver-internal-v7-6-f47e7589685d@google.com Signed-off-by: Paolo Abeni

net: team: Annotate reads and writes for mixed lock accessed values

2026-04-13T13:09:48+00:00

The team_port's "index" and the team's "en_port_count" are read in the hot transmit path, but are only written to when holding the rtnl lock. Use READ_ONCE() for all lockless reads of these values, and use WRITE_ONCE() for all writes. Reviewed-by: Jiri Pirko Signed-off-by: Marc Harvey Reviewed-by: Kuniyuki Iwashima Link: https://patch.msgid.link/20260409-teaming-driver-internal-v7-1-f47e7589685d@google.com Signed-off-by: Paolo Abeni

treewide: use get_random_u32_below() instead of deprecated function

2022-11-18T01:15:15+00:00

This is a simple mechanical transformation done by: @@ expression E; @@ - prandom_u32_max + get_random_u32_below (E) Reviewed-by: Kees Cook Reviewed-by: Greg Kroah-Hartman Acked-by: Darrick J. Wong # for xfs Reviewed-by: SeongJae Park # for damon Reviewed-by: Jason Gunthorpe # for infiniband Reviewed-by: Russell King (Oracle) # for arm Acked-by: Ulf Hansson # for mmc Signed-off-by: Jason A. Donenfeld

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

team: add macro MODULE_ALIAS_TEAM_MODE for team mode alias

2017-06-02T14:20:49+00:00

Add a new macro MODULE_ALIAS_TEAM_MODE to unify and simplify the declaration of team mode alias. Signed-off-by: Zhang Shengju Acked-by: Jiri Pirko Signed-off-by: David S. Miller

team: fill-up LAG changeupper info struct and pass it along

2015-12-03T16:49:26+00:00

Initialize netdev_lag_upper_info structure by TX type according to current team mode and pass it along via netdev_master_upper_dev_link. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

random32: add prandom_u32_max and convert open coded users

2014-01-22T07:17:20+00:00

Many functions have open coded a function that returns a random number in range [0,N-1]. Under the assumption that we have a PRNG such as taus113 with being well distributed in [0, ~0U] space, we can implement such a function as uword t = (n*m')>>32, where m' is a random number obtained from PRNG, n the right open interval border and t our resulting random number, with n,m',t in u32 universe. Lets go with Joe and simply call it prandom_u32_max(), although technically we have an right open interval endpoint, but that we have documented. Other users can further be migrated to the new prandom_u32_max() function later on; for now, we need to make sure to migrate reciprocal_divide() users for the reciprocal_divide() follow-up fixup since their function signatures are going to change. Joint work with Hannes Frederic Sowa. Cc: Jakub Zawadzki Cc: Eric Dumazet Cc: linux-kernel@vger.kernel.org Signed-off-by: Hannes Frederic Sowa Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller

team: check return value of team_get_port_by_index_rcu() for NULL

2013-06-12T07:56:27+00:00

team_get_port_by_index_rcu() might return NULL due to race between port removal and skb tx path. Panic is easily triggeable when txing packets and adding/removing port in a loop. introduced by commit 3d249d4ca "net: introduce ethernet teaming device" and commit 753f993911b "team: introduce random mode" (for random mode) Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

drivers/net: rename random32() to prandom_u32()

2013-05-08T01:38:27+00:00

Use preferable function name which implies using a pseudo-random number generator. [akpm@linux-foundation.org: convert team_mode_random.c] Signed-off-by: Akinobu Mita Acked-by: Thomas Sailer Acked-by: Bing Zhao [mwifiex] Cc: "David S. Miller" Cc: Michael Chan Cc: Thomas Sailer Cc: Jean-Paul Roubelat Cc: Bing Zhao Cc: Brett Rudley Cc: Arend van Spriel Cc: "Franky (Zhenhui) Lin" Cc: Hante Meuleman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

team: introduce random mode

2013-03-06T19:55:20+00:00

As suggested by Eric Dumazet, allow user to select mode which chooses TX port randomly. Functionality should be more of less similar to round-robin mode with even lower overhead. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller