From: Ivo van Doorn <ivdoorn@gmail.com>
To: "John W. Linville" <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org, users@rt2x00.serialmonkey.com
Subject: [PATCH 1/7] rt2x00: Simplify Queue function arguments
Date: Mon, 11 Oct 2010 15:37:25 +0200 [thread overview]
Message-ID: <201010111537.26584.IvDoorn@gmail.com> (raw)
A lot of functions accept a struct rt2x00_dev combined with
either a struct queue_entry or struct data_queue argument.
This can be simplified by only passing on the queue/entry
argument.
In cases where rt2x00_dev and a sk_buff are send together,
we can send the queue_entry instead.
rt2x00usb_alloc_urb and rt2x00usb_free_urb have a bit
of vague naming. Instead they allocate all the data which
belongs to a rt2x00 data queue entry.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
---
drivers/net/wireless/rt2x00/rt2400pci.c | 2 +-
drivers/net/wireless/rt2x00/rt2500pci.c | 2 +-
drivers/net/wireless/rt2x00/rt2x00.h | 13 +++-----
drivers/net/wireless/rt2x00/rt2x00dev.c | 10 +++---
drivers/net/wireless/rt2x00/rt2x00lib.h | 11 ++----
drivers/net/wireless/rt2x00/rt2x00pci.c | 2 +-
drivers/net/wireless/rt2x00/rt2x00queue.c | 49 ++++++++++++++---------------
drivers/net/wireless/rt2x00/rt2x00usb.c | 18 +++++-----
8 files changed, 50 insertions(+), 57 deletions(-)
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index 4b88909..095cb69 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1104,7 +1104,7 @@ static void rt2400pci_write_beacon(struct queue_entry *entry,
rt2x00_set_field32(®, CSR14_BEACON_GEN, 0);
rt2x00pci_register_write(rt2x00dev, CSR14, reg);
- rt2x00queue_map_txskb(rt2x00dev, entry->skb);
+ rt2x00queue_map_txskb(entry);
/*
* Write the TX descriptor for the beacon.
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index 46ef692..7d85bf9 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1258,7 +1258,7 @@ static void rt2500pci_write_beacon(struct queue_entry *entry,
rt2x00_set_field32(®, CSR14_BEACON_GEN, 0);
rt2x00pci_register_write(rt2x00dev, CSR14, reg);
- rt2x00queue_map_txskb(rt2x00dev, entry->skb);
+ rt2x00queue_map_txskb(entry);
/*
* Write the TX descriptor for the beacon.
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 75ac662..2322c84 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -1036,17 +1036,15 @@ static inline bool rt2x00_is_soc(struct rt2x00_dev *rt2x00dev)
/**
* rt2x00queue_map_txskb - Map a skb into DMA for TX purposes.
- * @rt2x00dev: Pointer to &struct rt2x00_dev.
- * @skb: The skb to map.
+ * @entry: Pointer to &struct queue_entry
*/
-void rt2x00queue_map_txskb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb);
+void rt2x00queue_map_txskb(struct queue_entry *entry);
/**
* rt2x00queue_unmap_skb - Unmap a skb from DMA.
- * @rt2x00dev: Pointer to &struct rt2x00_dev.
- * @skb: The skb to unmap.
+ * @entry: Pointer to &struct queue_entry
*/
-void rt2x00queue_unmap_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb);
+void rt2x00queue_unmap_skb(struct queue_entry *entry);
/**
* rt2x00queue_get_queue - Convert queue index to queue pointer
@@ -1093,8 +1091,7 @@ void rt2x00lib_dmadone(struct queue_entry *entry);
void rt2x00lib_txdone(struct queue_entry *entry,
struct txdone_entry_desc *txdesc);
void rt2x00lib_txdone_noinfo(struct queue_entry *entry, u32 status);
-void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
- struct queue_entry *entry);
+void rt2x00lib_rxdone(struct queue_entry *entry);
/*
* mac80211 handlers.
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 6f442b0..9b745fa 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -273,7 +273,7 @@ void rt2x00lib_txdone(struct queue_entry *entry,
/*
* Unmap the skb.
*/
- rt2x00queue_unmap_skb(rt2x00dev, entry->skb);
+ rt2x00queue_unmap_skb(entry);
/*
* Remove the extra tx headroom from the skb.
@@ -465,9 +465,9 @@ static int rt2x00lib_rxdone_read_signal(struct rt2x00_dev *rt2x00dev,
return 0;
}
-void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
- struct queue_entry *entry)
+void rt2x00lib_rxdone(struct queue_entry *entry)
{
+ struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
struct rxdone_entry_desc rxdesc;
struct sk_buff *skb;
struct ieee80211_rx_status *rx_status;
@@ -481,14 +481,14 @@ void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
* Allocate a new sk_buffer. If no new buffer available, drop the
* received frame and reuse the existing buffer.
*/
- skb = rt2x00queue_alloc_rxskb(rt2x00dev, entry);
+ skb = rt2x00queue_alloc_rxskb(entry);
if (!skb)
return;
/*
* Unmap the skb.
*/
- rt2x00queue_unmap_skb(rt2x00dev, entry->skb);
+ rt2x00queue_unmap_skb(entry);
/*
* Extract the RXD details.
diff --git a/drivers/net/wireless/rt2x00/rt2x00lib.h b/drivers/net/wireless/rt2x00/rt2x00lib.h
index 70c85ac..619da23 100644
--- a/drivers/net/wireless/rt2x00/rt2x00lib.h
+++ b/drivers/net/wireless/rt2x00/rt2x00lib.h
@@ -100,18 +100,15 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
/**
* rt2x00queue_alloc_rxskb - allocate a skb for RX purposes.
- * @rt2x00dev: Pointer to &struct rt2x00_dev.
- * @queue: The queue for which the skb will be applicable.
+ * @entry: The entry for which the skb will be applicable.
*/
-struct sk_buff *rt2x00queue_alloc_rxskb(struct rt2x00_dev *rt2x00dev,
- struct queue_entry *entry);
+struct sk_buff *rt2x00queue_alloc_rxskb(struct queue_entry *entry);
/**
* rt2x00queue_free_skb - free a skb
- * @rt2x00dev: Pointer to &struct rt2x00_dev.
- * @skb: The skb to free.
+ * @entry: The entry for which the skb will be applicable.
*/
-void rt2x00queue_free_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb);
+void rt2x00queue_free_skb(struct queue_entry *entry);
/**
* rt2x00queue_align_frame - Align 802.11 frame to 4-byte boundary
diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index 63c2cc4..2449d78 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -84,7 +84,7 @@ void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev)
/*
* Send the frame to rt2x00lib for further processing.
*/
- rt2x00lib_rxdone(rt2x00dev, entry);
+ rt2x00lib_rxdone(entry);
}
}
EXPORT_SYMBOL_GPL(rt2x00pci_rxdone);
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 83630f1..7e30144 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -33,9 +33,9 @@
#include "rt2x00.h"
#include "rt2x00lib.h"
-struct sk_buff *rt2x00queue_alloc_rxskb(struct rt2x00_dev *rt2x00dev,
- struct queue_entry *entry)
+struct sk_buff *rt2x00queue_alloc_rxskb(struct queue_entry *entry)
{
+ struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
struct sk_buff *skb;
struct skb_frame_desc *skbdesc;
unsigned int frame_size;
@@ -97,39 +97,42 @@ struct sk_buff *rt2x00queue_alloc_rxskb(struct rt2x00_dev *rt2x00dev,
return skb;
}
-void rt2x00queue_map_txskb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb)
+void rt2x00queue_map_txskb(struct queue_entry *entry)
{
- struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
+ struct device *dev = entry->queue->rt2x00dev->dev;
+ struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
skbdesc->skb_dma =
- dma_map_single(rt2x00dev->dev, skb->data, skb->len, DMA_TO_DEVICE);
+ dma_map_single(dev, entry->skb->data, entry->skb->len, DMA_TO_DEVICE);
skbdesc->flags |= SKBDESC_DMA_MAPPED_TX;
}
EXPORT_SYMBOL_GPL(rt2x00queue_map_txskb);
-void rt2x00queue_unmap_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb)
+void rt2x00queue_unmap_skb(struct queue_entry *entry)
{
- struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
+ struct device *dev = entry->queue->rt2x00dev->dev;
+ struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
if (skbdesc->flags & SKBDESC_DMA_MAPPED_RX) {
- dma_unmap_single(rt2x00dev->dev, skbdesc->skb_dma, skb->len,
+ dma_unmap_single(dev, skbdesc->skb_dma, entry->skb->len,
DMA_FROM_DEVICE);
skbdesc->flags &= ~SKBDESC_DMA_MAPPED_RX;
} else if (skbdesc->flags & SKBDESC_DMA_MAPPED_TX) {
- dma_unmap_single(rt2x00dev->dev, skbdesc->skb_dma, skb->len,
+ dma_unmap_single(dev, skbdesc->skb_dma, entry->skb->len,
DMA_TO_DEVICE);
skbdesc->flags &= ~SKBDESC_DMA_MAPPED_TX;
}
}
EXPORT_SYMBOL_GPL(rt2x00queue_unmap_skb);
-void rt2x00queue_free_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb)
+void rt2x00queue_free_skb(struct queue_entry *entry)
{
- if (!skb)
+ if (!entry->skb)
return;
- rt2x00queue_unmap_skb(rt2x00dev, skb);
- dev_kfree_skb_any(skb);
+ rt2x00queue_unmap_skb(entry);
+ dev_kfree_skb_any(entry->skb);
+ entry->skb = NULL;
}
void rt2x00queue_align_frame(struct sk_buff *skb)
@@ -438,7 +441,7 @@ static int rt2x00queue_write_tx_data(struct queue_entry *entry,
* Map the skb to DMA.
*/
if (test_bit(DRIVER_REQUIRE_DMA, &rt2x00dev->flags))
- rt2x00queue_map_txskb(rt2x00dev, entry->skb);
+ rt2x00queue_map_txskb(entry);
return 0;
}
@@ -585,8 +588,7 @@ int rt2x00queue_update_beacon(struct rt2x00_dev *rt2x00dev,
/*
* Clean up the beacon skb.
*/
- rt2x00queue_free_skb(rt2x00dev, intf->beacon->skb);
- intf->beacon->skb = NULL;
+ rt2x00queue_free_skb(intf->beacon);
if (!enable_beacon) {
rt2x00dev->ops->lib->kill_tx_queue(intf->beacon->queue);
@@ -827,8 +829,7 @@ static int rt2x00queue_alloc_entries(struct data_queue *queue,
return 0;
}
-static void rt2x00queue_free_skbs(struct rt2x00_dev *rt2x00dev,
- struct data_queue *queue)
+static void rt2x00queue_free_skbs(struct data_queue *queue)
{
unsigned int i;
@@ -836,19 +837,17 @@ static void rt2x00queue_free_skbs(struct rt2x00_dev *rt2x00dev,
return;
for (i = 0; i < queue->limit; i++) {
- if (queue->entries[i].skb)
- rt2x00queue_free_skb(rt2x00dev, queue->entries[i].skb);
+ rt2x00queue_free_skb(&queue->entries[i]);
}
}
-static int rt2x00queue_alloc_rxskbs(struct rt2x00_dev *rt2x00dev,
- struct data_queue *queue)
+static int rt2x00queue_alloc_rxskbs(struct data_queue *queue)
{
unsigned int i;
struct sk_buff *skb;
for (i = 0; i < queue->limit; i++) {
- skb = rt2x00queue_alloc_rxskb(rt2x00dev, &queue->entries[i]);
+ skb = rt2x00queue_alloc_rxskb(&queue->entries[i]);
if (!skb)
return -ENOMEM;
queue->entries[i].skb = skb;
@@ -883,7 +882,7 @@ int rt2x00queue_initialize(struct rt2x00_dev *rt2x00dev)
goto exit;
}
- status = rt2x00queue_alloc_rxskbs(rt2x00dev, rt2x00dev->rx);
+ status = rt2x00queue_alloc_rxskbs(rt2x00dev->rx);
if (status)
goto exit;
@@ -901,7 +900,7 @@ void rt2x00queue_uninitialize(struct rt2x00_dev *rt2x00dev)
{
struct data_queue *queue;
- rt2x00queue_free_skbs(rt2x00dev, rt2x00dev->rx);
+ rt2x00queue_free_skbs(rt2x00dev->rx);
queue_for_each(rt2x00dev, queue) {
kfree(queue->entries);
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index 4c5ae3d..451d637 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.c
@@ -398,7 +398,7 @@ static void rt2x00usb_work_rxdone(struct work_struct *work)
/*
* Send the frame to rt2x00lib for further processing.
*/
- rt2x00lib_rxdone(rt2x00dev, entry);
+ rt2x00lib_rxdone(entry);
}
}
@@ -542,9 +542,9 @@ static int rt2x00usb_find_endpoints(struct rt2x00_dev *rt2x00dev)
return 0;
}
-static int rt2x00usb_alloc_urb(struct rt2x00_dev *rt2x00dev,
- struct data_queue *queue)
+static int rt2x00usb_alloc_entries(struct data_queue *queue)
{
+ struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
struct queue_entry_priv_usb *entry_priv;
struct queue_entry_priv_usb_bcn *bcn_priv;
unsigned int i;
@@ -561,7 +561,7 @@ static int rt2x00usb_alloc_urb(struct rt2x00_dev *rt2x00dev,
* no guardian byte was required for the beacon,
* then we are done.
*/
- if (rt2x00dev->bcn != queue ||
+ if (queue->qid != QID_BEACON ||
!test_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags))
return 0;
@@ -575,9 +575,9 @@ static int rt2x00usb_alloc_urb(struct rt2x00_dev *rt2x00dev,
return 0;
}
-static void rt2x00usb_free_urb(struct rt2x00_dev *rt2x00dev,
- struct data_queue *queue)
+static void rt2x00usb_free_entries(struct data_queue *queue)
{
+ struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
struct queue_entry_priv_usb *entry_priv;
struct queue_entry_priv_usb_bcn *bcn_priv;
unsigned int i;
@@ -596,7 +596,7 @@ static void rt2x00usb_free_urb(struct rt2x00_dev *rt2x00dev,
* no guardian byte was required for the beacon,
* then we are done.
*/
- if (rt2x00dev->bcn != queue ||
+ if (queue->qid != QID_BEACON ||
!test_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags))
return;
@@ -623,7 +623,7 @@ int rt2x00usb_initialize(struct rt2x00_dev *rt2x00dev)
* Allocate DMA
*/
queue_for_each(rt2x00dev, queue) {
- status = rt2x00usb_alloc_urb(rt2x00dev, queue);
+ status = rt2x00usb_alloc_entries(queue);
if (status)
goto exit;
}
@@ -642,7 +642,7 @@ void rt2x00usb_uninitialize(struct rt2x00_dev *rt2x00dev)
struct data_queue *queue;
queue_for_each(rt2x00dev, queue)
- rt2x00usb_free_urb(rt2x00dev, queue);
+ rt2x00usb_free_entries(queue);
}
EXPORT_SYMBOL_GPL(rt2x00usb_uninitialize);
--
1.7.2.3
next reply other threads:[~2010-10-11 13:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-11 13:37 Ivo van Doorn [this message]
2010-10-11 13:37 ` [PATCH 2/7] rt2x00: Move watchdog work to kernel work_queue Ivo van Doorn
2010-10-11 13:38 ` [PATCH 3/7] rt2x00: Validate MCS on RX path Ivo van Doorn
2010-10-11 13:38 ` [PATCH 4/7] rt2x00: Fix dead queue when skb allocation failed Ivo van Doorn
2010-10-11 13:38 ` [PATCH 5/7] rt2x00: Make queue_entry flags access atomic Ivo van Doorn
2010-10-11 13:39 ` [PATCH 6/7] rt2x00: Don't perform watchdog checks on empty queue Ivo van Doorn
2010-10-11 13:39 ` [PATCH 7/7] rt2x00: Fix URB error handling Ivo van Doorn
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=201010111537.26584.IvDoorn@gmail.com \
--to=ivdoorn@gmail.com \
--cc=linux-wireless@vger.kernel.org \
--cc=linville@tuxdriver.com \
--cc=users@rt2x00.serialmonkey.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).