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Date: Sat, 19 Jul 2008 00:10:59 +0200
From: David Sterba <dsterba@...e.cz>
To: torvalds@...ux-foundation.org
Cc: linux-kernel@...r.kernel.org, dsterba@...e.cz, jkosina@...e.cz
Subject: [PATCH 01/12] ipwireless: Misc cleanups
- remove likely() and some extra () in ifs
- use unsigned in for loops
- remove useless typecasts
- remove obvious comments
- add () around ?:
Signed-off-by: David Sterba <dsterba@...e.cz>
Signed-off-by: Jiri Kosina <jkosina@...e.cz>
---
drivers/char/pcmcia/ipwireless/hardware.c | 50 ++++++++++-------------------
1 files changed, 18 insertions(+), 32 deletions(-)
diff --git a/drivers/char/pcmcia/ipwireless/hardware.c b/drivers/char/pcmcia/ipwireless/hardware.c
index 929101e..6a3e666 100644
--- a/drivers/char/pcmcia/ipwireless/hardware.c
+++ b/drivers/char/pcmcia/ipwireless/hardware.c
@@ -389,7 +389,7 @@ static void dump_data_bytes(const char *type, const unsigned char *data,
static int do_send_fragment(struct ipw_hardware *hw, const unsigned char *data,
unsigned length)
{
- int i;
+ unsigned i;
unsigned long flags;
start_timing();
@@ -414,7 +414,7 @@ static int do_send_fragment(struct ipw_hardware *hw, const unsigned char *data,
unsigned short d = data[i];
__le16 raw_data;
- if (likely(i + 1 < length))
+ if (i + 1 < length)
d |= data[i + 1] << 8;
raw_data = cpu_to_le16(d);
outw(raw_data, hw->base_port + IODWR);
@@ -428,7 +428,7 @@ static int do_send_fragment(struct ipw_hardware *hw, const unsigned char *data,
unsigned short d = data[i];
__le16 raw_data;
- if ((i + 1 < length))
+ if (i + 1 < length)
d |= data[i + 1] << 8;
raw_data = cpu_to_le16(d);
outw(raw_data, hw->base_port + IODMADPR);
@@ -549,12 +549,7 @@ static struct ipw_rx_packet *pool_allocate(struct ipw_hardware *hw,
if (!packet) {
unsigned long flags;
- /*
- * If this is the first fragment, then we will need to fetch a
- * packet to put it in.
- */
spin_lock_irqsave(&hw->spinlock, flags);
- /* If we have one in our pool, then pull it out. */
if (!list_empty(&hw->rx_pool)) {
packet = list_first_entry(&hw->rx_pool,
struct ipw_rx_packet, queue);
@@ -562,15 +557,14 @@ static struct ipw_rx_packet *pool_allocate(struct ipw_hardware *hw,
hw->rx_pool_size--;
spin_unlock_irqrestore(&hw->spinlock, flags);
} else {
- /* Otherwise allocate a new one. */
static int min_capacity = 256;
int new_capacity;
spin_unlock_irqrestore(&hw->spinlock, flags);
new_capacity =
- minimum_free_space > min_capacity
- ? minimum_free_space
- : min_capacity;
+ (minimum_free_space > min_capacity
+ ? minimum_free_space
+ : min_capacity);
packet = kmalloc(sizeof(struct ipw_rx_packet)
+ new_capacity, GFP_ATOMIC);
if (!packet)
@@ -580,10 +574,6 @@ static struct ipw_rx_packet *pool_allocate(struct ipw_hardware *hw,
packet->length = 0;
}
- /*
- * If this packet does not have sufficient capacity for the data we
- * want to add, then make it bigger.
- */
if (packet->length + minimum_free_space > packet->capacity) {
struct ipw_rx_packet *old_packet = packet;
@@ -686,7 +676,7 @@ static void queue_received_packet(struct ipw_hardware *hw,
list_add_tail(&packet->queue, &hw->rx_queue);
/* Block reception of incoming packets if queue is full. */
hw->blocking_rx =
- hw->rx_bytes_queued >= IPWIRELESS_RX_QUEUE_SIZE;
+ (hw->rx_bytes_queued >= IPWIRELESS_RX_QUEUE_SIZE);
spin_unlock_irqrestore(&hw->spinlock, flags);
schedule_work(&hw->work_rx);
@@ -850,7 +840,7 @@ static void acknowledge_data_read(struct ipw_hardware *hw)
static void do_receive_packet(struct ipw_hardware *hw)
{
unsigned len;
- unsigned int i;
+ unsigned i;
unsigned char pkt[LL_MTU_MAX];
start_timing();
@@ -916,8 +906,7 @@ static int get_current_packet_priority(struct ipw_hardware *hw)
* until setup is complete.
*/
return (hw->to_setup || hw->initializing
- ? PRIO_SETUP + 1 :
- NL_NUM_OF_PRIORITIES);
+ ? PRIO_SETUP + 1 : NL_NUM_OF_PRIORITIES);
}
/*
@@ -1128,9 +1117,8 @@ static irqreturn_t ipwireless_handle_v2_v3_interrupt(int irq,
} else {
return IRQ_NONE;
}
- } else {
+ } else
return IRQ_NONE;
- }
}
/*
@@ -1297,15 +1285,14 @@ int ipwireless_send_packet(struct ipw_hardware *hw, unsigned int channel_idx,
{
struct ipw_tx_packet *packet;
- packet = alloc_data_packet(length,
- (unsigned char) (channel_idx + 1),
- TL_PROTOCOLID_COM_DATA);
+ packet = alloc_data_packet(length, (channel_idx + 1),
+ TL_PROTOCOLID_COM_DATA);
if (!packet)
return -ENOMEM;
packet->packet_callback = callback;
packet->callback_data = callback_data;
- memcpy((unsigned char *) packet +
- sizeof(struct ipw_tx_packet), data, length);
+ memcpy((unsigned char *) packet + sizeof(struct ipw_tx_packet), data,
+ length);
send_packet(hw, PRIO_DATA, packet);
return 0;
@@ -1321,12 +1308,11 @@ static int set_control_line(struct ipw_hardware *hw, int prio,
protocolid = TL_PROTOCOLID_SETUP;
packet = alloc_ctrl_packet(sizeof(struct ipw_control_packet),
- (unsigned char) (channel_idx + 1),
- protocolid, line);
+ (channel_idx + 1), protocolid, line);
if (!packet)
return -ENOMEM;
packet->header.length = sizeof(struct ipw_control_packet_body);
- packet->body.value = (unsigned char) (state == 0 ? 0 : 1);
+ packet->body.value = (state == 0 ? 0 : 1);
send_packet(hw, prio, &packet->header);
return 0;
}
@@ -1651,8 +1637,8 @@ void ipwireless_init_hardware_v1(struct ipw_hardware *hw,
enable_irq(hw->irq);
}
hw->base_port = base_port;
- hw->hw_version = is_v2_card ? HW_VERSION_2 : HW_VERSION_1;
- hw->ll_mtu = hw->hw_version == HW_VERSION_1 ? LL_MTU_V1 : LL_MTU_V2;
+ hw->hw_version = (is_v2_card ? HW_VERSION_2 : HW_VERSION_1);
+ hw->ll_mtu = (hw->hw_version == HW_VERSION_1 ? LL_MTU_V1 : LL_MTU_V2);
hw->memregs_CCR = (struct MEMCCR __iomem *)
((unsigned short __iomem *) attr_memory + 0x200);
hw->memory_info_regs = (struct MEMINFREG __iomem *) common_memory;
--
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