staging: qlge: remove mpi_core_to_log which sends coredump to the kernel ring buffer

devlink health could be used to get coredump. No need to send so much
data to the kernel ring buffer.
Signed-off-by: Coiby Xu <coiby.xu@gmail.com>
Link: https://lore.kernel.org/r/20210123104613.38359-7-coiby.xu@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/qlge/TODO

@@ -18,8 +18,6 @@
   of questionable value. In particular, qlge_dbg.c has hundreds of lines of
   code bitrotting away in ifdef land (doesn't compile since commit
   18c49b91777c ("qlge: do vlan cleanup", v3.1-rc1), 8 years ago).
-* triggering an ethtool regdump will hexdump a 176k struct to dmesg depending
-  on some module parameters.
 * the flow control implementation in firmware is buggy (sends a flood of pause
   frames, resets the link, device and driver buffer queues become
   desynchronized), disable it by default

drivers/staging/qlge/qlge.h

@@ -2153,7 +2153,6 @@ struct qlge_adapter {
 	u32 port_init;
 	u32 link_status;
 	struct qlge_mpi_coredump *mpi_coredump;
-	u32 core_is_dumped;
 	u32 link_config;
 	u32 led_config;
 	u32 max_frame_size;
@@ -2166,7 +2165,6 @@ struct qlge_adapter {
 	struct delayed_work mpi_work;
 	struct delayed_work mpi_port_cfg_work;
 	struct delayed_work mpi_idc_work;
-	struct delayed_work mpi_core_to_log;
 	struct completion ide_completion;
 	const struct nic_operations *nic_ops;
 	u16 device_id;
@@ -2257,7 +2255,6 @@ int qlge_write_cfg(struct qlge_adapter *qdev, void *ptr, int size, u32 bit,
 void qlge_queue_fw_error(struct qlge_adapter *qdev);
 void qlge_mpi_work(struct work_struct *work);
 void qlge_mpi_reset_work(struct work_struct *work);
-void qlge_mpi_core_to_log(struct work_struct *work);
 int qlge_wait_reg_rdy(struct qlge_adapter *qdev, u32 reg, u32 bit, u32 ebit);
 void qlge_queue_asic_error(struct qlge_adapter *qdev);
 void qlge_set_ethtool_ops(struct net_device *ndev);

drivers/staging/qlge/qlge_dbg.c

@@ -1313,17 +1313,6 @@ void qlge_get_dump(struct qlge_adapter *qdev, void *buff)
 	}
 }
 
-/* Coredump to messages log file using separate worker thread */
-void qlge_mpi_core_to_log(struct work_struct *work)
-{
-	struct qlge_adapter *qdev =
-		container_of(work, struct qlge_adapter, mpi_core_to_log.work);
-
-	print_hex_dump(KERN_DEBUG, "Core is dumping to log file!\n",
-		       DUMP_PREFIX_OFFSET, 32, 4, qdev->mpi_coredump,
-		       sizeof(*qdev->mpi_coredump), false);
-}
-
 #ifdef QL_REG_DUMP
 static void qlge_dump_intr_states(struct qlge_adapter *qdev)
 {

drivers/staging/qlge/qlge_ethtool.c

@@ -617,7 +617,6 @@ static void qlge_get_regs(struct net_device *ndev,
 	struct qlge_adapter *qdev = netdev_to_qdev(ndev);
 
 	qlge_get_dump(qdev, p);
-	qdev->core_is_dumped = 0;
 	if (!test_bit(QL_FRC_COREDUMP, &qdev->flags))
 		regs->len = sizeof(struct qlge_mpi_coredump);
 	else

drivers/staging/qlge/qlge_main.c

@@ -3800,7 +3800,6 @@ static void qlge_cancel_all_work_sync(struct qlge_adapter *qdev)
 	cancel_delayed_work_sync(&qdev->mpi_reset_work);
 	cancel_delayed_work_sync(&qdev->mpi_work);
 	cancel_delayed_work_sync(&qdev->mpi_idc_work);
-	cancel_delayed_work_sync(&qdev->mpi_core_to_log);
 	cancel_delayed_work_sync(&qdev->mpi_port_cfg_work);
 }
 
@@ -4493,7 +4492,6 @@ static int qlge_init_device(struct pci_dev *pdev, struct qlge_adapter *qdev,
 	INIT_DELAYED_WORK(&qdev->mpi_work, qlge_mpi_work);
 	INIT_DELAYED_WORK(&qdev->mpi_port_cfg_work, qlge_mpi_port_cfg_work);
 	INIT_DELAYED_WORK(&qdev->mpi_idc_work, qlge_mpi_idc_work);
-	INIT_DELAYED_WORK(&qdev->mpi_core_to_log, qlge_mpi_core_to_log);
 	init_completion(&qdev->ide_completion);
 	mutex_init(&qdev->mpi_mutex);
 

drivers/staging/qlge/qlge_mpi.c

@@ -1269,11 +1269,5 @@ void qlge_mpi_reset_work(struct work_struct *work)
 		return;
 	}
 
-	if (qdev->mpi_coredump && !qlge_core_dump(qdev, qdev->mpi_coredump)) {
-		netif_err(qdev, drv, qdev->ndev, "Core is dumped!\n");
-		qdev->core_is_dumped = 1;
-		queue_delayed_work(qdev->workqueue,
-				   &qdev->mpi_core_to_log, 5 * HZ);
-	}
 	qlge_soft_reset_mpi_risc(qdev);
 }