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staging: dgnc: Replace non-standard spinlock's macros

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This patch replaces non-standard spinlock's macros.
It is done using coccinelle and the following semantic patch:

@@
expression x;
@@

- DGNC_SPINLOCK_INIT(x)
+ spin_lock_init(&x)

@@
expression x, y;
@@

- DGNC_LOCK(x, y)
+ spin_lock_irqsave(&x, y)

@@
expression x, y;
@@

- DGNC_UNLOCK(x, y)
+ spin_unlock_irqrestore(&x, y)

@used_by_lock exists@
typedef ulong;
symbol lock_flags;
position p1, p2;
@@

(
 ulong lock_flags@p1;
|
 unsigned long lock_flags@p2;
)
...
(
 spin_lock_irqsave(..., lock_flags)
|
 spin_unlock_irqrestore(..., lock_flags)
)

@@
position used_by_lock.p1, used_by_lock.p2;
@@

(
- ulong lock_flags@p1;
+ unsigned long flags;
|
- unsigned long lock_flags@p2;
+ unsigned long flags;
)
<...
- lock_flags
+ flags
...>

Signed-off-by: Roberta Dobrescu <roberta.dobrescu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Roberta Dobrescu 2014-09-23 01:55:55 +03:00 committed by Greg Kroah-Hartman
parent 8f3a2e04e3
commit 707505b58e
1 changed files with 33 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
drivers/staging/dgnc/dgnc_cls.c
View File

@ -367,16 +367,16 @@ static inline void cls_set_no_input_flow_control(struct channel_t *ch)
*/
static inline void cls_clear_break(struct channel_t *ch, int force)
{
ulong lock_flags;
unsigned long flags;
if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
return;
DGNC_LOCK(ch->ch_lock, lock_flags);
spin_lock_irqsave(&ch->ch_lock, flags);
/* Bail if we aren't currently sending a break. */
if (!ch->ch_stop_sending_break) {
DGNC_UNLOCK(ch->ch_lock, lock_flags);
spin_unlock_irqrestore(&ch->ch_lock, flags);
return;
}
@ -390,7 +390,7 @@ static inline void cls_clear_break(struct channel_t *ch, int force)
ch->ch_stop_sending_break = 0;
}
}
DGNC_UNLOCK(ch->ch_lock, lock_flags);
spin_unlock_irqrestore(&ch->ch_lock, flags);
}
@ -399,7 +399,7 @@ static inline void cls_parse_isr(struct dgnc_board *brd, uint port)
{
struct channel_t *ch;
uchar isr = 0;
ulong lock_flags;
unsigned long flags;
/*
* No need to verify board pointer, it was already
@ -434,11 +434,11 @@ static inline void cls_parse_isr(struct dgnc_board *brd, uint port)
/* Transmit Hold register empty pending */
if (isr & UART_IIR_THRI) {
/* Transfer data (if any) from Write Queue -> UART. */
DGNC_LOCK(ch->ch_lock, lock_flags);
spin_lock_irqsave(&ch->ch_lock, flags);
ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
brd->intr_tx++;
ch->ch_intr_tx++;
DGNC_UNLOCK(ch->ch_lock, lock_flags);
spin_unlock_irqrestore(&ch->ch_lock, flags);
cls_copy_data_from_queue_to_uart(ch);
}
@ -719,7 +719,7 @@ static void cls_tasklet(unsigned long data)
{
struct dgnc_board *bd = (struct dgnc_board *) data;
struct channel_t *ch;
ulong lock_flags;
unsigned long flags;
int i;
int state = 0;
int ports = 0;
@ -730,16 +730,16 @@ static void cls_tasklet(unsigned long data)
}
/* Cache a couple board values */
DGNC_LOCK(bd->bd_lock, lock_flags);
spin_lock_irqsave(&bd->bd_lock, flags);
state = bd->state;
ports = bd->nasync;
DGNC_UNLOCK(bd->bd_lock, lock_flags);
spin_unlock_irqrestore(&bd->bd_lock, flags);
/*
* Do NOT allow the interrupt routine to read the intr registers
* Until we release this lock.
*/
DGNC_LOCK(bd->bd_intr_lock, lock_flags);
spin_lock_irqsave(&bd->bd_intr_lock, flags);
/*
* If board is ready, parse deeper to see if there is anything to do.
@ -782,7 +782,7 @@ static void cls_tasklet(unsigned long data)
}
}
DGNC_UNLOCK(bd->bd_intr_lock, lock_flags);
spin_unlock_irqrestore(&bd->bd_intr_lock, flags);
}
@ -797,7 +797,7 @@ static irqreturn_t cls_intr(int irq, void *voidbrd)
struct dgnc_board *brd = (struct dgnc_board *) voidbrd;
uint i = 0;
uchar poll_reg;
unsigned long lock_flags;
unsigned long flags;
if (!brd) {
APR(("Received interrupt (%d) with null board associated\n",
@ -814,7 +814,7 @@ static irqreturn_t cls_intr(int irq, void *voidbrd)
return IRQ_NONE;
}
DGNC_LOCK(brd->bd_intr_lock, lock_flags);
spin_lock_irqsave(&brd->bd_intr_lock, flags);
brd->intr_count++;
@ -826,7 +826,7 @@ static irqreturn_t cls_intr(int irq, void *voidbrd)
/* If 0, no interrupts pending */
if (!poll_reg) {
DGNC_UNLOCK(brd->bd_intr_lock, lock_flags);
spin_unlock_irqrestore(&brd->bd_intr_lock, flags);
return IRQ_NONE;
}
@ -839,7 +839,7 @@ static irqreturn_t cls_intr(int irq, void *voidbrd)
*/
tasklet_schedule(&brd->helper_tasklet);
DGNC_UNLOCK(brd->bd_intr_lock, lock_flags);
spin_unlock_irqrestore(&brd->bd_intr_lock, flags);
return IRQ_HANDLED;
}
@ -870,12 +870,12 @@ static void cls_copy_data_from_uart_to_queue(struct channel_t *ch)
uchar error_mask = 0;
ushort head;
ushort tail;
ulong lock_flags;
unsigned long flags;
if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
return;
DGNC_LOCK(ch->ch_lock, lock_flags);
spin_lock_irqsave(&ch->ch_lock, flags);
/* cache head and tail of queue */
head = ch->ch_r_head;
@ -951,7 +951,7 @@ static void cls_copy_data_from_uart_to_queue(struct channel_t *ch)
ch->ch_r_head = head & RQUEUEMASK;
ch->ch_e_head = head & EQUEUEMASK;
DGNC_UNLOCK(ch->ch_lock, lock_flags);
spin_unlock_irqrestore(&ch->ch_lock, flags);
}
@ -961,7 +961,7 @@ static void cls_copy_data_from_uart_to_queue(struct channel_t *ch)
*/
static int cls_drain(struct tty_struct *tty, uint seconds)
{
ulong lock_flags;
unsigned long flags;
struct channel_t *ch;
struct un_t *un;
int rc = 0;
@ -977,9 +977,9 @@ static int cls_drain(struct tty_struct *tty, uint seconds)
if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
return -ENXIO;
DGNC_LOCK(ch->ch_lock, lock_flags);
spin_lock_irqsave(&ch->ch_lock, flags);
un->un_flags |= UN_EMPTY;
DGNC_UNLOCK(ch->ch_lock, lock_flags);
spin_unlock_irqrestore(&ch->ch_lock, flags);
/*
* NOTE: Do something with time passed in.
@ -1035,28 +1035,28 @@ static void cls_copy_data_from_queue_to_uart(struct channel_t *ch)
int n;
int qlen;
uint len_written = 0;
ulong lock_flags;
unsigned long flags;
if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
return;
DGNC_LOCK(ch->ch_lock, lock_flags);
spin_lock_irqsave(&ch->ch_lock, flags);
/* No data to write to the UART */
if (ch->ch_w_tail == ch->ch_w_head) {
DGNC_UNLOCK(ch->ch_lock, lock_flags);
spin_unlock_irqrestore(&ch->ch_lock, flags);
return;
}
/* If port is "stopped", don't send any data to the UART */
if ((ch->ch_flags & CH_FORCED_STOP) ||
(ch->ch_flags & CH_BREAK_SENDING)) {
DGNC_UNLOCK(ch->ch_lock, lock_flags);
spin_unlock_irqrestore(&ch->ch_lock, flags);
return;
}
if (!(ch->ch_flags & (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM))) {
DGNC_UNLOCK(ch->ch_lock, lock_flags);
spin_unlock_irqrestore(&ch->ch_lock, flags);
return;
}
@ -1110,14 +1110,14 @@ static void cls_copy_data_from_queue_to_uart(struct channel_t *ch)
if (len_written > 0)
ch->ch_flags &= ~(CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
DGNC_UNLOCK(ch->ch_lock, lock_flags);
spin_unlock_irqrestore(&ch->ch_lock, flags);
}
static void cls_parse_modem(struct channel_t *ch, uchar signals)
{
uchar msignals = signals;
ulong lock_flags;
unsigned long flags;
if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
return;
@ -1126,7 +1126,7 @@ static void cls_parse_modem(struct channel_t *ch, uchar signals)
* Do altpin switching. Altpin switches DCD and DSR.
* This prolly breaks DSRPACE, so we should be more clever here.
*/
DGNC_LOCK(ch->ch_lock, lock_flags);
spin_lock_irqsave(&ch->ch_lock, flags);
if (ch->ch_digi.digi_flags & DIGI_ALTPIN) {
uchar mswap = signals;
@ -1147,7 +1147,7 @@ static void cls_parse_modem(struct channel_t *ch, uchar signals)
msignals |= UART_MSR_DCD;
}
}
DGNC_UNLOCK(ch->ch_lock, lock_flags);
spin_unlock_irqrestore(&ch->ch_lock, flags);
/*
* Scrub off lower bits. They signify delta's, which I don't
@ -1155,7 +1155,7 @@ static void cls_parse_modem(struct channel_t *ch, uchar signals)
*/
signals &= 0xf0;
DGNC_LOCK(ch->ch_lock, lock_flags);
spin_lock_irqsave(&ch->ch_lock, flags);
if (msignals & UART_MSR_DCD)
ch->ch_mistat |= UART_MSR_DCD;
else
@ -1175,7 +1175,7 @@ static void cls_parse_modem(struct channel_t *ch, uchar signals)
ch->ch_mistat |= UART_MSR_CTS;
else
ch->ch_mistat &= ~UART_MSR_CTS;
DGNC_UNLOCK(ch->ch_lock, lock_flags);
spin_unlock_irqrestore(&ch->ch_lock, flags);
}