From ae0c8eeb66045ea2e327b23d21788622ca510627 Mon Sep 17 00:00:00 2001 From: Andreas Born Date: Thu, 10 Aug 2017 06:41:44 +0200 Subject: bonding: require speed/duplex only for 802.3ad, alb and tlb commit ad729bc9acfb7c47112964b4877ef5404578ed13 upstream. The patch c4adfc822bf5 ("bonding: make speed, duplex setting consistent with link state") puts the link state to down if bond_update_speed_duplex() cannot retrieve speed and duplex settings. Assumably the patch was written with 802.3ad mode in mind which relies on link speed/duplex settings. For other modes like active-backup these settings are not required. Thus, only for these other modes, this patch reintroduces support for slaves that do not support reporting speed or duplex such as wireless devices. This fixes the regression reported in bug 196547 (https://bugzilla.kernel.org/show_bug.cgi?id=196547). Fixes: c4adfc822bf5 ("bonding: make speed, duplex setting consistent with link state") Signed-off-by: Andreas Born Acked-by: Mahesh Bandewar Signed-off-by: David S. Miller Cc: Nate Clark Signed-off-by: Greg Kroah-Hartman --- include/net/bonding.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/net/bonding.h b/include/net/bonding.h index 7734cc9c7d29..714428c54c68 100644 --- a/include/net/bonding.h +++ b/include/net/bonding.h @@ -277,6 +277,11 @@ static inline bool bond_is_lb(const struct bonding *bond) BOND_MODE(bond) == BOND_MODE_ALB; } +static inline bool bond_needs_speed_duplex(const struct bonding *bond) +{ + return BOND_MODE(bond) == BOND_MODE_8023AD || bond_is_lb(bond); +} + static inline bool bond_is_nondyn_tlb(const struct bonding *bond) { return (BOND_MODE(bond) == BOND_MODE_TLB) && -- cgit v1.2.3