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-rw-r--r--drivers/net/ipa/ipa_main.c29
-rw-r--r--drivers/net/ipa/ipa_mem.c9
-rw-r--r--drivers/net/ipa/ipa_mem.h5
-rw-r--r--drivers/net/ipa/ipa_resource.c8
-rw-r--r--drivers/net/ipa/ipa_resource.h8
-rw-r--r--drivers/net/ipa/ipa_table.c26
-rw-r--r--drivers/net/ipa/ipa_table.h16
7 files changed, 24 insertions, 77 deletions
diff --git a/drivers/net/ipa/ipa_main.c b/drivers/net/ipa/ipa_main.c
index a970d10e650e..bfed151f5d6d 100644
--- a/drivers/net/ipa/ipa_main.c
+++ b/drivers/net/ipa/ipa_main.c
@@ -147,13 +147,13 @@ int ipa_setup(struct ipa *ipa)
if (ret)
goto err_endpoint_teardown;
- ret = ipa_mem_setup(ipa);
+ ret = ipa_mem_setup(ipa); /* No matching teardown required */
if (ret)
goto err_command_disable;
- ret = ipa_table_setup(ipa);
+ ret = ipa_table_setup(ipa); /* No matching teardown required */
if (ret)
- goto err_mem_teardown;
+ goto err_command_disable;
/* Enable the exception handling endpoint, and tell the hardware
* to use it by default.
@@ -161,7 +161,7 @@ int ipa_setup(struct ipa *ipa)
exception_endpoint = ipa->name_map[IPA_ENDPOINT_AP_LAN_RX];
ret = ipa_endpoint_enable_one(exception_endpoint);
if (ret)
- goto err_table_teardown;
+ goto err_command_disable;
ipa_endpoint_default_route_set(ipa, exception_endpoint->endpoint_id);
@@ -179,10 +179,6 @@ int ipa_setup(struct ipa *ipa)
err_default_route_clear:
ipa_endpoint_default_route_clear(ipa);
ipa_endpoint_disable_one(exception_endpoint);
-err_table_teardown:
- ipa_table_teardown(ipa);
-err_mem_teardown:
- ipa_mem_teardown(ipa);
err_command_disable:
ipa_endpoint_disable_one(command_endpoint);
err_endpoint_teardown:
@@ -211,8 +207,6 @@ static void ipa_teardown(struct ipa *ipa)
ipa_endpoint_default_route_clear(ipa);
exception_endpoint = ipa->name_map[IPA_ENDPOINT_AP_LAN_RX];
ipa_endpoint_disable_one(exception_endpoint);
- ipa_table_teardown(ipa);
- ipa_mem_teardown(ipa);
command_endpoint = ipa->name_map[IPA_ENDPOINT_AP_COMMAND_TX];
ipa_endpoint_disable_one(command_endpoint);
ipa_endpoint_teardown(ipa);
@@ -480,23 +474,20 @@ static int ipa_config(struct ipa *ipa, const struct ipa_data *data)
if (ret)
goto err_endpoint_deconfig;
- ipa_table_config(ipa);
+ ipa_table_config(ipa); /* No deconfig required */
- /* Assign resource limitation to each group */
+ /* Assign resource limitation to each group; no deconfig required */
ret = ipa_resource_config(ipa, data->resource_data);
if (ret)
- goto err_table_deconfig;
+ goto err_mem_deconfig;
ret = ipa_modem_config(ipa);
if (ret)
- goto err_resource_deconfig;
+ goto err_mem_deconfig;
return 0;
-err_resource_deconfig:
- ipa_resource_deconfig(ipa);
-err_table_deconfig:
- ipa_table_deconfig(ipa);
+err_mem_deconfig:
ipa_mem_deconfig(ipa);
err_endpoint_deconfig:
ipa_endpoint_deconfig(ipa);
@@ -514,8 +505,6 @@ err_hardware_deconfig:
static void ipa_deconfig(struct ipa *ipa)
{
ipa_modem_deconfig(ipa);
- ipa_resource_deconfig(ipa);
- ipa_table_deconfig(ipa);
ipa_mem_deconfig(ipa);
ipa_endpoint_deconfig(ipa);
ipa_hardware_deconfig(ipa);
diff --git a/drivers/net/ipa/ipa_mem.c b/drivers/net/ipa/ipa_mem.c
index 32907dde5dc6..c5c3b1b7e67d 100644
--- a/drivers/net/ipa/ipa_mem.c
+++ b/drivers/net/ipa/ipa_mem.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
- * Copyright (C) 2019-2020 Linaro Ltd.
+ * Copyright (C) 2019-2021 Linaro Ltd.
*/
#include <linux/types.h>
@@ -53,6 +53,8 @@ ipa_mem_zero_region_add(struct gsi_trans *trans, const struct ipa_mem *mem)
* The AP informs the modem where its portions of memory are located
* in a QMI exchange that occurs at modem startup.
*
+ * There is no need for a matching ipa_mem_teardown() function.
+ *
* Return: 0 if successful, or a negative error code
*/
int ipa_mem_setup(struct ipa *ipa)
@@ -97,11 +99,6 @@ int ipa_mem_setup(struct ipa *ipa)
return 0;
}
-void ipa_mem_teardown(struct ipa *ipa)
-{
- /* Nothing to do */
-}
-
#ifdef IPA_VALIDATE
static bool ipa_mem_valid(struct ipa *ipa, enum ipa_mem_id mem_id)
diff --git a/drivers/net/ipa/ipa_mem.h b/drivers/net/ipa/ipa_mem.h
index df61ef48df36..9ca8a47bd4af 100644
--- a/drivers/net/ipa/ipa_mem.h
+++ b/drivers/net/ipa/ipa_mem.h
@@ -1,7 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
- * Copyright (C) 2019-2020 Linaro Ltd.
+ * Copyright (C) 2019-2021 Linaro Ltd.
*/
#ifndef _IPA_MEM_H_
#define _IPA_MEM_H_
@@ -88,8 +88,7 @@ struct ipa_mem {
int ipa_mem_config(struct ipa *ipa);
void ipa_mem_deconfig(struct ipa *ipa);
-int ipa_mem_setup(struct ipa *ipa);
-void ipa_mem_teardown(struct ipa *ipa);
+int ipa_mem_setup(struct ipa *ipa); /* No ipa_mem_teardown() needed */
int ipa_mem_zero_modem(struct ipa *ipa);
diff --git a/drivers/net/ipa/ipa_resource.c b/drivers/net/ipa/ipa_resource.c
index 85f922d6f222..3b2dc216d3a6 100644
--- a/drivers/net/ipa/ipa_resource.c
+++ b/drivers/net/ipa/ipa_resource.c
@@ -158,7 +158,7 @@ static void ipa_resource_config_dst(struct ipa *ipa, u32 resource_type,
ipa_resource_config_common(ipa, offset, &resource->limits[6], ylimits);
}
-/* Configure resources */
+/* Configure resources; there is no ipa_resource_deconfig() */
int ipa_resource_config(struct ipa *ipa, const struct ipa_resource_data *data)
{
u32 i;
@@ -174,9 +174,3 @@ int ipa_resource_config(struct ipa *ipa, const struct ipa_resource_data *data)
return 0;
}
-
-/* Inverse of ipa_resource_config() */
-void ipa_resource_deconfig(struct ipa *ipa)
-{
- /* Nothing to do */
-}
diff --git a/drivers/net/ipa/ipa_resource.h b/drivers/net/ipa/ipa_resource.h
index 9f74036fb95c..ef5818bff180 100644
--- a/drivers/net/ipa/ipa_resource.h
+++ b/drivers/net/ipa/ipa_resource.h
@@ -14,14 +14,10 @@ struct ipa_resource_data;
* @ipa: IPA pointer
* @data: IPA resource configuration data
*
+ * There is no need for a matching ipa_resource_deconfig() function.
+ *
* Return: true if all regions are valid, false otherwise
*/
int ipa_resource_config(struct ipa *ipa, const struct ipa_resource_data *data);
-/**
- * ipa_resource_deconfig() - Inverse of ipa_resource_config()
- * @ipa: IPA pointer
- */
-void ipa_resource_deconfig(struct ipa *ipa);
-
#endif /* _IPA_RESOURCE_H_ */
diff --git a/drivers/net/ipa/ipa_table.c b/drivers/net/ipa/ipa_table.c
index 401b568df6a3..3168d72f4245 100644
--- a/drivers/net/ipa/ipa_table.c
+++ b/drivers/net/ipa/ipa_table.c
@@ -497,11 +497,6 @@ int ipa_table_setup(struct ipa *ipa)
return 0;
}
-void ipa_table_teardown(struct ipa *ipa)
-{
- /* Nothing to do */ /* XXX Maybe reset the tables? */
-}
-
/**
* ipa_filter_tuple_zero() - Zero an endpoint's hashed filter tuple
* @endpoint: Endpoint whose filter hash tuple should be zeroed
@@ -525,6 +520,7 @@ static void ipa_filter_tuple_zero(struct ipa_endpoint *endpoint)
iowrite32(val, endpoint->ipa->reg_virt + offset);
}
+/* Configure a hashed filter table; there is no ipa_filter_deconfig() */
static void ipa_filter_config(struct ipa *ipa, bool modem)
{
enum gsi_ee_id ee_id = modem ? GSI_EE_MODEM : GSI_EE_AP;
@@ -545,11 +541,6 @@ static void ipa_filter_config(struct ipa *ipa, bool modem)
}
}
-static void ipa_filter_deconfig(struct ipa *ipa, bool modem)
-{
- /* Nothing to do */
-}
-
static bool ipa_route_id_modem(u32 route_id)
{
return route_id >= IPA_ROUTE_MODEM_MIN &&
@@ -576,6 +567,7 @@ static void ipa_route_tuple_zero(struct ipa *ipa, u32 route_id)
iowrite32(val, ipa->reg_virt + offset);
}
+/* Configure a hashed route table; there is no ipa_route_deconfig() */
static void ipa_route_config(struct ipa *ipa, bool modem)
{
u32 route_id;
@@ -588,11 +580,7 @@ static void ipa_route_config(struct ipa *ipa, bool modem)
ipa_route_tuple_zero(ipa, route_id);
}
-static void ipa_route_deconfig(struct ipa *ipa, bool modem)
-{
- /* Nothing to do */
-}
-
+/* Configure a filter and route tables; there is no ipa_table_deconfig() */
void ipa_table_config(struct ipa *ipa)
{
ipa_filter_config(ipa, false);
@@ -601,14 +589,6 @@ void ipa_table_config(struct ipa *ipa)
ipa_route_config(ipa, true);
}
-void ipa_table_deconfig(struct ipa *ipa)
-{
- ipa_route_deconfig(ipa, true);
- ipa_route_deconfig(ipa, false);
- ipa_filter_deconfig(ipa, true);
- ipa_filter_deconfig(ipa, false);
-}
-
/*
* Initialize a coherent DMA allocation containing initialized filter and
* route table data. This is used when initializing or resetting the IPA
diff --git a/drivers/net/ipa/ipa_table.h b/drivers/net/ipa/ipa_table.h
index 018045b95aad..1e2be9fce2f8 100644
--- a/drivers/net/ipa/ipa_table.h
+++ b/drivers/net/ipa/ipa_table.h
@@ -74,28 +74,20 @@ int ipa_table_hash_flush(struct ipa *ipa);
/**
* ipa_table_setup() - Set up filter and route tables
* @ipa: IPA pointer
+ *
+ * There is no need for a matching ipa_table_teardown() function.
*/
int ipa_table_setup(struct ipa *ipa);
/**
- * ipa_table_teardown() - Inverse of ipa_table_setup()
- * @ipa: IPA pointer
- */
-void ipa_table_teardown(struct ipa *ipa);
-
-/**
* ipa_table_config() - Configure filter and route tables
* @ipa: IPA pointer
+ *
+ * There is no need for a matching ipa_table_deconfig() function.
*/
void ipa_table_config(struct ipa *ipa);
/**
- * ipa_table_deconfig() - Inverse of ipa_table_config()
- * @ipa: IPA pointer
- */
-void ipa_table_deconfig(struct ipa *ipa);
-
-/**
* ipa_table_init() - Do early initialization of filter and route tables
* @ipa: IPA pointer
*/