| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.9 237/757] sfc: dont double-down() filters in ef100_reset() | Date | Tue, 27 Oct 2020 14:48:07 +0100 |
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From: Edward Cree <ecree@solarflare.com>
[ Upstream commit 7dcc9d8a40f85cbd76acdebcc45ccdfe4a84337f ]
dev_close(), by way of ef100_net_stop(), already brings down the filter table, so there's no need to do it again (which just causes lots of WARN_ONs). Similarly, don't bring it up ourselves, as dev_open() -> ef100_net_open() will do it, and will fail if it's already been brought up.
Fixes: a9dc3d5612ce ("sfc_ef100: RX filter table management and related gubbins") Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/ethernet/sfc/ef100_nic.c | 12 ------------ 1 file changed, 12 deletions(-)
diff --git a/drivers/net/ethernet/sfc/ef100_nic.c b/drivers/net/ethernet/sfc/ef100_nic.c index 19fe86b3b3169..9cf5b8f8fab9a 100644 --- a/drivers/net/ethernet/sfc/ef100_nic.c +++ b/drivers/net/ethernet/sfc/ef100_nic.c @@ -428,24 +428,12 @@ static int ef100_reset(struct efx_nic *efx, enum reset_type reset_type) __clear_bit(reset_type, &efx->reset_pending); rc = dev_open(efx->net_dev, NULL); } else if (reset_type == RESET_TYPE_ALL) { - /* A RESET_TYPE_ALL will cause filters to be removed, so we remove filters - * and reprobe after reset to avoid removing filters twice - */ - down_write(&efx->filter_sem); - ef100_filter_table_down(efx); - up_write(&efx->filter_sem); rc = efx_mcdi_reset(efx, reset_type); if (rc) return rc; netif_device_attach(efx->net_dev); - down_write(&efx->filter_sem); - rc = ef100_filter_table_up(efx); - up_write(&efx->filter_sem); - if (rc) - return rc; - rc = dev_open(efx->net_dev, NULL); } else { rc = 1; /* Leave the device closed */ -- 2.25.1
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