iwlegacy: remove tracing

This is not useful.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>

drivers/net/wireless/iwlegacy/Kconfig

@@ -43,23 +43,6 @@ config IWLWIFI_LEGACY_DEBUGFS
 	  is a low-impact option that allows getting insight into the
 	  driver's state at runtime.
 
-config IWLWIFI_LEGACY_DEVICE_TRACING
-	bool "iwlwifilegacy legacy device access tracing"
-	depends on IWLWIFI_LEGACY
-	depends on EVENT_TRACING
-	help
-	  Say Y here to trace all commands, including TX frames and IO
-	  accesses, sent to the device. If you say yes, iwlwifilegacy will
-	  register with the ftrace framework for event tracing and dump
-	  all this information to the ringbuffer, you may need to
-	  increase the ringbuffer size. See the ftrace documentation
-	  for more information.
-
-	  When tracing is not enabled, this option still has some
-	  (though rather small) overhead.
-
-	  If unsure, say Y so we can help you better when problems
-	  occur.
 endmenu
 
 config IWL4965

drivers/net/wireless/iwlegacy/Makefile

@@ -3,12 +3,9 @@ iwl-legacy-objs 		:= iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o
 iwl-legacy-objs 		+= iwl-rx.o iwl-tx.o iwl-sta.o
 iwl-legacy-objs 		+= iwl-scan.o iwl-led.o
 iwl-legacy-$(CONFIG_IWLWIFI_LEGACY_DEBUGFS) += iwl-debugfs.o
-iwl-legacy-$(CONFIG_IWLWIFI_LEGACY_DEVICE_TRACING) += iwl-devtrace.o
 
 iwl-legacy-objs += $(iwl-legacy-m)
 
-CFLAGS_iwl-devtrace.o := -I$(src)
-
 # 4965
 obj-$(CONFIG_IWL4965)	+= iwl4965.o
 iwl4965-objs		:= iwl-4965.o iwl4965-base.o iwl-4965-rs.o iwl-4965-led.o

drivers/net/wireless/iwlegacy/iwl-4965-tx.c

@@ -513,12 +513,6 @@ int iwl4965_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	pci_dma_sync_single_for_device(priv->pci_dev, txcmd_phys,
 				       firstlen, PCI_DMA_BIDIRECTIONAL);
 
-	trace_iwlwifi_legacy_dev_tx(priv,
-			     &((struct iwl_tfd *)txq->tfds)[txq->q.write_ptr],
-			     sizeof(struct iwl_tfd),
-			     &out_cmd->hdr, firstlen,
-			     skb->data + hdr_len, secondlen);
-
 	/* Tell device the write index *just past* this latest filled TFD */
 	q->write_ptr = iwl_legacy_queue_inc_wrap(q->write_ptr, q->n_bd);
 	iwl_legacy_txq_update_write_ptr(priv, txq);

drivers/net/wireless/iwlegacy/iwl-io.h

@@ -33,7 +33,6 @@
 
 #include "iwl-dev.h"
 #include "iwl-debug.h"
-#include "iwl-devtrace.h"
 
 /*
  * IO, register, and NIC memory access functions
@@ -65,7 +64,6 @@
 
 static inline void _iwl_legacy_write8(struct iwl_priv *priv, u32 ofs, u8 val)
 {
-	trace_iwlwifi_legacy_dev_iowrite8(priv, ofs, val);
 	iowrite8(val, priv->hw_base + ofs);
 }
 
@@ -86,7 +84,6 @@ __iwl_legacy_write8(const char *f, u32 l, struct iwl_priv *priv,
 
 static inline void _iwl_legacy_write32(struct iwl_priv *priv, u32 ofs, u32 val)
 {
-	trace_iwlwifi_legacy_dev_iowrite32(priv, ofs, val);
 	iowrite32(val, priv->hw_base + ofs);
 }
 
@@ -107,7 +104,6 @@ __iwl_legacy_write32(const char *f, u32 l, struct iwl_priv *priv,
 static inline u32 _iwl_legacy_read32(struct iwl_priv *priv, u32 ofs)
 {
 	u32 val = ioread32(priv->hw_base + ofs);
-	trace_iwlwifi_legacy_dev_ioread32(priv, ofs, val);
 	return val;
 }
 

drivers/net/wireless/iwlegacy/iwl-tx.c

@@ -539,9 +539,6 @@ int iwl_legacy_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 	dma_unmap_addr_set(out_meta, mapping, phys_addr);
 	dma_unmap_len_set(out_meta, len, fix_size);
 
-	trace_iwlwifi_legacy_dev_hcmd(priv, &out_cmd->hdr,
-						fix_size, cmd->flags);
-
 	priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
 						   phys_addr, fix_size, 1,
 						   U32_PAD(cmd->len));

drivers/net/wireless/iwlegacy/iwl3945-base.c

@@ -1246,7 +1246,6 @@ static void iwl3945_rx_handle(struct iwl_priv *priv)
 
 		len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 		len += sizeof(u32); /* account for status word */
-		trace_iwlwifi_legacy_dev_rx(priv, pkt, len);
 
 		/* Reclaim a command buffer only if this packet is a response
 		 *   to a (driver-originated) command.
@@ -1403,8 +1402,6 @@ void iwl3945_dump_nic_error_log(struct iwl_priv *priv)
 			"%-13s (0x%X) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
 			iwl3945_desc_lookup(desc), desc, time, blink1, blink2,
 			ilink1, ilink2, data1);
-		trace_iwlwifi_legacy_dev_ucode_error(priv, desc, time, data1, 0,
-					0, blink1, blink2, ilink1, ilink2);
 	}
 }
 

drivers/net/wireless/iwlegacy/iwl4965-base.c

@@ -679,7 +679,6 @@ void iwl4965_rx_handle(struct iwl_priv *priv)
 
 		len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 		len += sizeof(u32); /* account for status word */
-		trace_iwlwifi_legacy_dev_rx(priv, pkt, len);
 
 		/* Reclaim a command buffer only if this packet is a response
 		 *   to a (driver-originated) command.
@@ -1569,10 +1568,6 @@ void iwl4965_dump_nic_error_log(struct iwl_priv *priv)
 	time = iwl_legacy_read_targ_mem(priv, base + 11 * sizeof(u32));
 	hcmd = iwl_legacy_read_targ_mem(priv, base + 22 * sizeof(u32));
 
-	trace_iwlwifi_legacy_dev_ucode_error(priv, desc,
-					time, data1, data2, line,
-				      blink1, blink2, ilink1, ilink2);
-
 	IWL_ERR(priv, "Desc                                  Time       "
 		"data1      data2      line\n");
 	IWL_ERR(priv, "%-28s (0x%04X) %010u 0x%08X 0x%08X %u\n",