From e41c11ee0cc602bcde68916be85fb97d1a484324 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Wed, 28 Apr 2010 09:01:50 +0000 Subject: [PATCH] sfc: Change falcon_probe_board() to fail for unsupported boards The driver needs specific PHY and board support code for each SFC4000 board; there is no point trying to continue if it is missing. Currently unsupported boards can trigger an 'oops'. Signed-off-by: Ben Hutchings Cc: stable@kernel.org Signed-off-by: David S. Miller --- drivers/net/sfc/falcon.c | 4 +++- drivers/net/sfc/falcon_boards.c | 13 +++---------- drivers/net/sfc/nic.h | 2 +- 3 files changed, 7 insertions(+), 12 deletions(-) diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c index d294d66fd600..08278e7302b3 100644 --- a/drivers/net/sfc/falcon.c +++ b/drivers/net/sfc/falcon.c @@ -1320,7 +1320,9 @@ static int falcon_probe_nvconfig(struct efx_nic *efx) EFX_LOG(efx, "PHY is %d phy_id %d\n", efx->phy_type, efx->mdio.prtad); - falcon_probe_board(efx, board_rev); + rc = falcon_probe_board(efx, board_rev); + if (rc) + goto fail2; kfree(nvconfig); return 0; diff --git a/drivers/net/sfc/falcon_boards.c b/drivers/net/sfc/falcon_boards.c index 5712fddd72f2..c7a933a3292e 100644 --- a/drivers/net/sfc/falcon_boards.c +++ b/drivers/net/sfc/falcon_boards.c @@ -728,15 +728,7 @@ static const struct falcon_board_type board_types[] = { }, }; -static const struct falcon_board_type falcon_dummy_board = { - .init = efx_port_dummy_op_int, - .init_phy = efx_port_dummy_op_void, - .fini = efx_port_dummy_op_void, - .set_id_led = efx_port_dummy_op_set_id_led, - .monitor = efx_port_dummy_op_int, -}; - -void falcon_probe_board(struct efx_nic *efx, u16 revision_info) +int falcon_probe_board(struct efx_nic *efx, u16 revision_info) { struct falcon_board *board = falcon_board(efx); u8 type_id = FALCON_BOARD_TYPE(revision_info); @@ -754,8 +746,9 @@ void falcon_probe_board(struct efx_nic *efx, u16 revision_info) (efx->pci_dev->subsystem_vendor == EFX_VENDID_SFC) ? board->type->ref_model : board->type->gen_type, 'A' + board->major, board->minor); + return 0; } else { EFX_ERR(efx, "unknown board type %d\n", type_id); - board->type = &falcon_dummy_board; + return -ENODEV; } } diff --git a/drivers/net/sfc/nic.h b/drivers/net/sfc/nic.h index 9351c0331a47..3166bafdfbef 100644 --- a/drivers/net/sfc/nic.h +++ b/drivers/net/sfc/nic.h @@ -156,7 +156,7 @@ extern struct efx_nic_type siena_a0_nic_type; ************************************************************************** */ -extern void falcon_probe_board(struct efx_nic *efx, u16 revision_info); +extern int falcon_probe_board(struct efx_nic *efx, u16 revision_info); /* TX data path */ extern int efx_nic_probe_tx(struct efx_tx_queue *tx_queue);