From 5f70bcbca469a087b54ad2d934185ed69a098576 Mon Sep 17 00:00:00 2001 From: M Chetan Kumar Date: Tue, 28 Mar 2023 11:58:44 +0530 Subject: [PATCH] net: wwan: iosm: fixes 7560 modem crash ModemManger/Apps probing the wwan0xmmrpc0 port for 7560 Modem results in modem crash. 7560 Modem FW uses the MBIM interface for control command communication whereas 7360 uses Intel RPC interface so disable wwan0xmmrpc0 port for 7560. Fixes: d08b0f8f46e4 ("net: wwan: iosm: add rpc interface for xmm modems") Reported-and-tested-by: Martin Link: https://bugzilla.kernel.org/show_bug.cgi?id=217200 Signed-off-by: M Chetan Kumar Signed-off-by: Shane Parslow Signed-off-by: David S. Miller --- drivers/net/wwan/iosm/iosm_ipc_imem.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem.c b/drivers/net/wwan/iosm/iosm_ipc_imem.c index 1e6a479..c066b00 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_imem.c +++ b/drivers/net/wwan/iosm/iosm_ipc_imem.c @@ -587,6 +587,13 @@ static void ipc_imem_run_state_worker(struct work_struct *instance) while (ctrl_chl_idx < IPC_MEM_MAX_CHANNELS) { if (!ipc_chnl_cfg_get(&chnl_cfg_port, ctrl_chl_idx)) { ipc_imem->ipc_port[ctrl_chl_idx] = NULL; + + if (ipc_imem->pcie->pci->device == INTEL_CP_DEVICE_7560_ID && + chnl_cfg_port.wwan_port_type == WWAN_PORT_XMMRPC) { + ctrl_chl_idx++; + continue; + } + if (ipc_imem->pcie->pci->device == INTEL_CP_DEVICE_7360_ID && chnl_cfg_port.wwan_port_type == WWAN_PORT_MBIM) { ctrl_chl_idx++; -- 2.7.4