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author	Edward Cree <ecree@solarflare.com>
	Tue, 27 Mar 2018 16:44:36 +0000 (17:44 +0100)
committer	David S. Miller <davem@davemloft.net>
	Tue, 27 Mar 2018 17:33:20 +0000 (13:33 -0400)
commit	e0a65e3c5e3b7b11ec9320524b8fcc210f2026e9
tree	e82d5fb1d37ef7bff0c1d75a2cbe1f7f0ede3e57	tree \| snapshot
parent	31b842955211f427a099f78a6a63d18a6bbc8d55	commit \| diff

sfc: protect list of RSS contexts under a mutex

Otherwise races are possible between ethtool ops and
efx_ef10_rx_restore_rss_contexts().
Also, don't try to perform the restore on every reset, only after an MC
reboot, otherwise we'll leak RSS contexts on the NIC.

Fixes: 42356d9a137b ("sfc: support RSS spreading of ethtool ntuple filters")
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

John Crispins staging tree

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drivers/net/ethernet/sfc/ef10.c		diff \| blob \| history
drivers/net/ethernet/sfc/efx.c		diff \| blob \| history
drivers/net/ethernet/sfc/efx.h		diff \| blob \| history
drivers/net/ethernet/sfc/ethtool.c		diff \| blob \| history
drivers/net/ethernet/sfc/net_driver.h		diff \| blob \| history
drivers/net/ethernet/sfc/nic.h		diff \| blob \| history