1 files changed, 9 insertions, 284 deletions

diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index df514507d3f1..6d836a26272f 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2005-2011 Atheros Communications Inc.
- * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -18,10 +18,8 @@
 #include <linux/module.h>
 #include <linux/debugfs.h>
 #include <linux/vmalloc.h>
-#include <linux/utsname.h>
 #include <linux/crc32.h>
 #include <linux/firmware.h>
-#include <linux/devcoredump.h>
 
 #include "core.h"
 #include "debug.h"
@@ -33,86 +31,6 @@
 
 #define ATH10K_DEBUG_CAL_DATA_LEN 12064
 
-#define ATH10K_FW_CRASH_DUMP_VERSION 1
-
-/**
- * enum ath10k_fw_crash_dump_type - types of data in the dump file
- * @ATH10K_FW_CRASH_DUMP_REGDUMP: Register crash dump in binary format
- */
-enum ath10k_fw_crash_dump_type {
-	ATH10K_FW_CRASH_DUMP_REGISTERS = 0,
-	ATH10K_FW_CRASH_DUMP_CE_DATA = 1,
-
-	ATH10K_FW_CRASH_DUMP_MAX,
-};
-
-struct ath10k_tlv_dump_data {
-	/* see ath10k_fw_crash_dump_type above */
-	__le32 type;
-
-	/* in bytes */
-	__le32 tlv_len;
-
-	/* pad to 32-bit boundaries as needed */
-	u8 tlv_data[];
-} __packed;
-
-struct ath10k_dump_file_data {
-	/* dump file information */
-
-	/* "ATH10K-FW-DUMP" */
-	char df_magic[16];
-
-	__le32 len;
-
-	/* file dump version */
-	__le32 version;
-
-	/* some info we can get from ath10k struct that might help */
-
-	guid_t guid;
-
-	__le32 chip_id;
-
-	/* 0 for now, in place for later hardware */
-	__le32 bus_type;
-
-	__le32 target_version;
-	__le32 fw_version_major;
-	__le32 fw_version_minor;
-	__le32 fw_version_release;
-	__le32 fw_version_build;
-	__le32 phy_capability;
-	__le32 hw_min_tx_power;
-	__le32 hw_max_tx_power;
-	__le32 ht_cap_info;
-	__le32 vht_cap_info;
-	__le32 num_rf_chains;
-
-	/* firmware version string */
-	char fw_ver[ETHTOOL_FWVERS_LEN];
-
-	/* Kernel related information */
-
-	/* time-of-day stamp */
-	__le64 tv_sec;
-
-	/* time-of-day stamp, nano-seconds */
-	__le64 tv_nsec;
-
-	/* LINUX_VERSION_CODE */
-	__le32 kernel_ver_code;
-
-	/* VERMAGIC_STRING */
-	char kernel_ver[64];
-
-	/* room for growth w/out changing binary format */
-	u8 unused[128];
-
-	/* struct ath10k_tlv_dump_data + more */
-	u8 data[0];
-} __packed;
-
 void ath10k_info(struct ath10k *ar, const char *fmt, ...)
 {
 	struct va_format vaf = {
@@ -711,189 +629,6 @@ static const struct file_operations fops_chip_id = {
 	.llseek = default_llseek,
 };
 
-struct ath10k_fw_crash_data *
-ath10k_debug_get_new_fw_crash_data(struct ath10k *ar)
-{
-	struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
-
-	lockdep_assert_held(&ar->data_lock);
-
-	crash_data->crashed_since_read = true;
-	guid_gen(&crash_data->guid);
-	getnstimeofday(&crash_data->timestamp);
-
-	return crash_data;
-}
-EXPORT_SYMBOL(ath10k_debug_get_new_fw_crash_data);
-
-static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar,
-							    bool mark_read)
-{
-	struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
-	struct ath10k_ce_crash_hdr *ce_hdr;
-	struct ath10k_dump_file_data *dump_data;
-	struct ath10k_tlv_dump_data *dump_tlv;
-	size_t hdr_len = sizeof(*dump_data);
-	size_t len, sofar = 0;
-	unsigned char *buf;
-
-	len = hdr_len;
-	len += sizeof(*dump_tlv) + sizeof(crash_data->registers);
-	len += sizeof(*dump_tlv) + sizeof(*ce_hdr) +
-		CE_COUNT * sizeof(ce_hdr->entries[0]);
-
-	sofar += hdr_len;
-
-	/* This is going to get big when we start dumping FW RAM and such,
-	 * so go ahead and use vmalloc.
-	 */
-	buf = vzalloc(len);
-	if (!buf)
-		return NULL;
-
-	spin_lock_bh(&ar->data_lock);
-
-	if (!crash_data->crashed_since_read) {
-		spin_unlock_bh(&ar->data_lock);
-		vfree(buf);
-		return NULL;
-	}
-
-	dump_data = (struct ath10k_dump_file_data *)(buf);
-	strlcpy(dump_data->df_magic, "ATH10K-FW-DUMP",
-		sizeof(dump_data->df_magic));
-	dump_data->len = cpu_to_le32(len);
-
-	dump_data->version = cpu_to_le32(ATH10K_FW_CRASH_DUMP_VERSION);
-
-	guid_copy(&dump_data->guid, &crash_data->guid);
-	dump_data->chip_id = cpu_to_le32(ar->chip_id);
-	dump_data->bus_type = cpu_to_le32(0);
-	dump_data->target_version = cpu_to_le32(ar->target_version);
-	dump_data->fw_version_major = cpu_to_le32(ar->fw_version_major);
-	dump_data->fw_version_minor = cpu_to_le32(ar->fw_version_minor);
-	dump_data->fw_version_release = cpu_to_le32(ar->fw_version_release);
-	dump_data->fw_version_build = cpu_to_le32(ar->fw_version_build);
-	dump_data->phy_capability = cpu_to_le32(ar->phy_capability);
-	dump_data->hw_min_tx_power = cpu_to_le32(ar->hw_min_tx_power);
-	dump_data->hw_max_tx_power = cpu_to_le32(ar->hw_max_tx_power);
-	dump_data->ht_cap_info = cpu_to_le32(ar->ht_cap_info);
-	dump_data->vht_cap_info = cpu_to_le32(ar->vht_cap_info);
-	dump_data->num_rf_chains = cpu_to_le32(ar->num_rf_chains);
-
-	strlcpy(dump_data->fw_ver, ar->hw->wiphy->fw_version,
-		sizeof(dump_data->fw_ver));
-
-	dump_data->kernel_ver_code = 0;
-	strlcpy(dump_data->kernel_ver, init_utsname()->release,
-		sizeof(dump_data->kernel_ver));
-
-	dump_data->tv_sec = cpu_to_le64(crash_data->timestamp.tv_sec);
-	dump_data->tv_nsec = cpu_to_le64(crash_data->timestamp.tv_nsec);
-
-	/* Gather crash-dump */
-	dump_tlv = (struct ath10k_tlv_dump_data *)(buf + sofar);
-	dump_tlv->type = cpu_to_le32(ATH10K_FW_CRASH_DUMP_REGISTERS);
-	dump_tlv->tlv_len = cpu_to_le32(sizeof(crash_data->registers));
-	memcpy(dump_tlv->tlv_data, &crash_data->registers,
-	       sizeof(crash_data->registers));
-	sofar += sizeof(*dump_tlv) + sizeof(crash_data->registers);
-
-	dump_tlv = (struct ath10k_tlv_dump_data *)(buf + sofar);
-	dump_tlv->type = cpu_to_le32(ATH10K_FW_CRASH_DUMP_CE_DATA);
-	dump_tlv->tlv_len = cpu_to_le32(sizeof(*ce_hdr) +
-					CE_COUNT * sizeof(ce_hdr->entries[0]));
-	ce_hdr = (struct ath10k_ce_crash_hdr *)(dump_tlv->tlv_data);
-	ce_hdr->ce_count = cpu_to_le32(CE_COUNT);
-	memset(ce_hdr->reserved, 0, sizeof(ce_hdr->reserved));
-	memcpy(ce_hdr->entries, crash_data->ce_crash_data,
-	       CE_COUNT * sizeof(ce_hdr->entries[0]));
-	sofar += sizeof(*dump_tlv) + sizeof(*ce_hdr) +
-		 CE_COUNT * sizeof(ce_hdr->entries[0]);
-
-	ar->debug.fw_crash_data->crashed_since_read = !mark_read;
-
-	spin_unlock_bh(&ar->data_lock);
-
-	return dump_data;
-}
-
-int ath10k_debug_fw_devcoredump(struct ath10k *ar)
-{
-	struct ath10k_dump_file_data *dump;
-	void *dump_ptr;
-	u32 dump_len;
-
-	/* To keep the dump file available also for debugfs don't mark the
-	 * file read, only debugfs should do that.
-	 */
-	dump = ath10k_build_dump_file(ar, false);
-	if (!dump) {
-		ath10k_warn(ar, "no crash dump data found for devcoredump");
-		return -ENODATA;
-	}
-
-	/* Make a copy of the dump file for dev_coredumpv() as during the
-	 * transition period we need to own the original file. Once
-	 * fw_crash_dump debugfs file is removed no need to have a copy
-	 * anymore.
-	 */
-	dump_len = le32_to_cpu(dump->len);
-	dump_ptr = vzalloc(dump_len);
-
-	if (!dump_ptr)
-		return -ENOMEM;
-
-	memcpy(dump_ptr, dump, dump_len);
-
-	dev_coredumpv(ar->dev, dump_ptr, dump_len, GFP_KERNEL);
-
-	return 0;
-}
-
-static int ath10k_fw_crash_dump_open(struct inode *inode, struct file *file)
-{
-	struct ath10k *ar = inode->i_private;
-	struct ath10k_dump_file_data *dump;
-
-	ath10k_warn(ar, "fw_crash_dump debugfs file is deprecated, please use /sys/class/devcoredump instead.");
-
-	dump = ath10k_build_dump_file(ar, true);
-	if (!dump)
-		return -ENODATA;
-
-	file->private_data = dump;
-
-	return 0;
-}
-
-static ssize_t ath10k_fw_crash_dump_read(struct file *file,
-					 char __user *user_buf,
-					 size_t count, loff_t *ppos)
-{
-	struct ath10k_dump_file_data *dump_file = file->private_data;
-
-	return simple_read_from_buffer(user_buf, count, ppos,
-				       dump_file,
-				       le32_to_cpu(dump_file->len));
-}
-
-static int ath10k_fw_crash_dump_release(struct inode *inode,
-					struct file *file)
-{
-	vfree(file->private_data);
-
-	return 0;
-}
-
-static const struct file_operations fops_fw_crash_dump = {
-	.open = ath10k_fw_crash_dump_open,
-	.read = ath10k_fw_crash_dump_read,
-	.release = ath10k_fw_crash_dump_release,
-	.owner = THIS_MODULE,
-	.llseek = default_llseek,
-};
-
 static ssize_t ath10k_reg_addr_read(struct file *file,
 				    char __user *user_buf,
 				    size_t count, loff_t *ppos)
@@ -1950,14 +1685,14 @@ int ath10k_debug_start(struct ath10k *ar)
 				    ret);
 	}
 
-	if (ar->debug.pktlog_filter) {
+	if (ar->pktlog_filter) {
 		ret = ath10k_wmi_pdev_pktlog_enable(ar,
-						    ar->debug.pktlog_filter);
+						    ar->pktlog_filter);
 		if (ret)
 			/* not serious */
 			ath10k_warn(ar,
 				    "failed to enable pktlog filter %x: %d\n",
-				    ar->debug.pktlog_filter, ret);
+				    ar->pktlog_filter, ret);
 	} else {
 		ret = ath10k_wmi_pdev_pktlog_disable(ar);
 		if (ret)
@@ -2097,12 +1832,12 @@ static ssize_t ath10k_write_pktlog_filter(struct file *file,
 	mutex_lock(&ar->conf_mutex);
 
 	if (ar->state != ATH10K_STATE_ON) {
-		ar->debug.pktlog_filter = filter;
+		ar->pktlog_filter = filter;
 		ret = count;
 		goto out;
 	}
 
-	if (filter == ar->debug.pktlog_filter) {
+	if (filter == ar->pktlog_filter) {
 		ret = count;
 		goto out;
 	}
@@ -2111,7 +1846,7 @@ static ssize_t ath10k_write_pktlog_filter(struct file *file,
 		ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
 		if (ret) {
 			ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
-				    ar->debug.pktlog_filter, ret);
+				    ar->pktlog_filter, ret);
 			goto out;
 		}
 	} else {
@@ -2122,7 +1857,7 @@ static ssize_t ath10k_write_pktlog_filter(struct file *file,
 		}
 	}
 
-	ar->debug.pktlog_filter = filter;
+	ar->pktlog_filter = filter;
 	ret = count;
 
 out:
@@ -2139,7 +1874,7 @@ static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
 
 	mutex_lock(&ar->conf_mutex);
 	len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
-			ar->debug.pktlog_filter);
+			ar->pktlog_filter);
 	mutex_unlock(&ar->conf_mutex);
 
 	return simple_read_from_buffer(ubuf, count, ppos, buf, len);
@@ -2402,10 +2137,6 @@ static const struct file_operations fops_fw_checksums = {
 
 int ath10k_debug_create(struct ath10k *ar)
 {
-	ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data));
-	if (!ar->debug.fw_crash_data)
-		return -ENOMEM;
-
 	ar->debug.cal_data = vzalloc(ATH10K_DEBUG_CAL_DATA_LEN);
 	if (!ar->debug.cal_data)
 		return -ENOMEM;
@@ -2420,9 +2151,6 @@ int ath10k_debug_create(struct ath10k *ar)
 
 void ath10k_debug_destroy(struct ath10k *ar)
 {
-	vfree(ar->debug.fw_crash_data);
-	ar->debug.fw_crash_data = NULL;
-
 	vfree(ar->debug.cal_data);
 	ar->debug.cal_data = NULL;
 
@@ -2460,9 +2188,6 @@ int ath10k_debug_register(struct ath10k *ar)
 	debugfs_create_file("simulate_fw_crash", 0600, ar->debug.debugfs_phy, ar,
 			    &fops_simulate_fw_crash);
 
-	debugfs_create_file("fw_crash_dump", 0400, ar->debug.debugfs_phy, ar,
-			    &fops_fw_crash_dump);
-
 	debugfs_create_file("reg_addr", 0600, ar->debug.debugfs_phy, ar,
 			    &fops_reg_addr);