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Message-Id: <1270822424-3813-1-git-send-email-mauricedawson2699@googlemail.com>
Date: Fri, 9 Apr 2010 15:13:43 +0100
From: Maurice Dawson <mauricedawson2699@...glemail.com>
To: gregkh@...e.de, wfp5p@...ginia.edu, mithlesh@...syssoft.com,
devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH 30/30] Staging: comedi: fix over 80 character coding style issues in ni_labpc.c
This is a re-submitted patch to the ni_labpc.c file that fixes up over 80 characters warnings found by the checkpatch.pl tool
Signed-off-by: Maurice Dawson <mauricedawson2699@...glemail.com>
---
drivers/staging/comedi/drivers/ni_labpc.c | 258 ++++++++++++++++------------
1 files changed, 147 insertions(+), 111 deletions(-)
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 4eaf31f..becbe47 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -101,18 +101,18 @@ NI manuals:
#define ADC_CHAN_BITS(x) ((x) & 0x7)
#define ADC_SCAN_EN_BIT 0x80 /* enables multi channel scans */
#define COMMAND2_REG 0x1
-#define PRETRIG_BIT 0x1 /* enable pretriggering
- * (used in conjunction with SWTRIG) */
-#define HWTRIG_BIT 0x2 /* enable paced conversions
- * on external trigger */
+ /* enable pretriggering (used in conjunction with SWTRIG) */
+#define PRETRIG_BIT 0x1
+ /* enable paced conversions on external trigger */
+#define HWTRIG_BIT 0x2
#define SWTRIG_BIT 0x4 /* enable paced conversions */
#define CASCADE_BIT 0x8 /* use two cascaded counters for pacing */
#define DAC_PACED_BIT(channel) (0x40 << ((channel) & 0x1))
#define COMMAND3_REG 0x2
#define DMA_EN_BIT 0x1 /* enable dma transfers */
#define DIO_INTR_EN_BIT 0x2 /* enable interrupts for 8255 */
-#define DMATC_INTR_EN_BIT 0x4 /* enable dma terminal count
- * interrupt */
+ /* enable dma terminal count interrupt */
+#define DMATC_INTR_EN_BIT 0x4
#define TIMER_INTR_EN_BIT 0x8 /* enable timer interrupt */
#define ERR_INTR_EN_BIT 0x10 /* enable error interrupt */
#define ADC_FNE_INTR_EN_BIT 0x20 /* enable fifo not empty interrupt */
@@ -123,32 +123,32 @@ NI manuals:
#define DMATC_CLEAR_REG 0xa
#define TIMER_CLEAR_REG 0xc
#define COMMAND6_REG 0xe /* 1200 boards only */
-#define ADC_COMMON_BIT 0x1 /* select ground or
- * common-mode reference */
+ /* select ground or common-mode reference */
+#define ADC_COMMON_BIT 0x1
#define ADC_UNIP_BIT 0x2 /* adc unipolar */
#define DAC_UNIP_BIT(channel) (0x4 << ((channel) & 0x1)) /* dac unipolar */
#define ADC_FHF_INTR_EN_BIT 0x20 /* enable fifo half full interrupt */
-#define A1_INTR_EN_BIT 0x40 /* enable interrupt
- * on end of hardware count */
-#define ADC_SCAN_UP_BIT 0x80 /* scan up from channel zero
- * instead of down to zero */
+ /* enable interrupt on end of hardware count */
+#define A1_INTR_EN_BIT 0x40
+ /* scan up from channel zero instead of down to zero */
+#define ADC_SCAN_UP_BIT 0x80
#define COMMAND4_REG 0xf
#define INTERVAL_SCAN_EN_BIT 0x1 /* enables 'interval' scanning */
-#define EXT_SCAN_EN_BIT 0x2 /* enables external signal on
- * counter b1 output to trigger scan */
-#define EXT_CONVERT_OUT_BIT 0x4 /* chooses direction (output or input)
- * for EXTCONV* line */
-#define ADC_DIFF_BIT 0x8 /* chooses differential inputs for adc
- * (in conjunction with board jumper) */
+ /* enables external signal on counter b1 output to trigger scan */
+#define EXT_SCAN_EN_BIT 0x2
+ /* chooses direction (output or input) for EXTCONV* line */
+#define EXT_CONVERT_OUT_BIT 0x4
+/* chooses differential inputs for adc (in conjunction with board jumper) */
+#define ADC_DIFF_BIT 0x8
#define EXT_CONVERT_DISABLE_BIT 0x10
#define COMMAND5_REG 0x1c /* 1200 boards only, calibration stuff */
#define EEPROM_WRITE_UNPROTECT_BIT 0x4 /* enable eeprom for write */
#define DITHER_EN_BIT 0x8 /* enable dithering */
#define CALDAC_LOAD_BIT 0x10 /* load calibration dac */
-#define SCLOCK_BIT 0x20 /* serial clock - rising edge writes,
- * falling edge reads */
-#define SDATA_BIT 0x40 /* serial data bit for writing to eeprom
- * or calibration dacs */
+ /* serial clock - rising edge writes, falling edge reads */
+#define SCLOCK_BIT 0x20
+ /* serial data bit for writing to eeprom or calibration dacs */
+#define SDATA_BIT 0x40
#define EEPROM_EN_BIT 0x80 /* enable eeprom for read/write */
#define INTERVAL_COUNT_REG 0x1e
#define INTERVAL_LOAD_REG 0x1f
@@ -171,10 +171,10 @@ NI manuals:
#define DIO_BASE_REG 0x10
#define COUNTER_A_BASE_REG 0x14
#define COUNTER_A_CONTROL_REG (COUNTER_A_BASE_REG + 0x3)
-#define INIT_A0_BITS 0x14 /* check modes put conversion pacer output
- * in harmless state (a0 mode 2) */
-#define INIT_A1_BITS 0x70 /* put hardware conversion counter output
- * in harmless state (a1 mode 0) */
+/* check modes put conversion pacer output in harmless state (a0 mode 2) */
+#define INIT_A0_BITS 0x14
+/* put hardware conversion counter output in harmless state (a1 mode 0) */
+#define INIT_A1_BITS 0x70
#define COUNTER_B_BASE_REG 0x18
static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it);
@@ -363,8 +363,10 @@ static const struct comedi_lrange range_labpc_ao = {
}
};
-/* functions that do inb/outb and readb/writeb so we can use
- * function pointers to decide which to use */
+/*
+ * functions that do inb/outb and readb/writeb so we can use
+ * function pointers to decide which to use
+ */
static inline unsigned int labpc_inb(unsigned long address)
{
return inb(address);
@@ -422,6 +424,7 @@ static const struct labpc_board_struct labpc_boards[] = {
.ai_scan_up = 0,
.memory_mapped_io = 0,
},
+/* dummy entry so pci board works when comedi_config is passed driver name */
#ifdef CONFIG_COMEDI_PCI
{
.name = "pci-1200",
@@ -437,8 +440,6 @@ static const struct labpc_board_struct labpc_boards[] = {
.memory_mapped_io = 1,
},
- /* dummy entry so pci board works when
- * comedi_config is passed driver name */
{
.name = DRV_NAME,
.bustype = pci_bustype,
@@ -446,13 +447,11 @@ static const struct labpc_board_struct labpc_boards[] = {
#endif
};
-/*
- * Useful for shorthand access to the particular board structure
- */
+/* Useful for shorthand access to the particular board structure */
#define thisboard ((struct labpc_board_struct *)dev->board_ptr)
-static const int dma_buffer_size = 0xff00; /* size in bytes
- * of dma buffer */
+ /* size in bytes of dma buffer */
+static const int dma_buffer_size = 0xff00;
static const int sample_size = 2; /* 2 bytes per sample */
#define devpriv ((struct labpc_private *)dev->private)
@@ -476,19 +475,19 @@ MODULE_DEVICE_TABLE(pci, labpc_pci_table);
#endif /* CONFIG_COMEDI_PCI */
static inline int labpc_counter_load(struct comedi_device *dev,
- unsigned long base_address,
- unsigned int counter_number,
- unsigned int count, unsigned int mode)
+ unsigned long base_address,
+ unsigned int counter_number,
+ unsigned int count, unsigned int mode)
{
if (thisboard->memory_mapped_io)
return i8254_mm_load((void *)base_address, 0, counter_number,
- count, mode);
+ count, mode);
else
return i8254_load(base_address, 0, counter_number, count, mode);
}
EXPORT_SYMBOL_GPL(labpc_1200_ai_gain_bits);
int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
- unsigned int irq, unsigned int dma_chan)
+ unsigned int irq, unsigned int dma_chan)
{
struct comedi_subdevice *s;
int i;
@@ -513,7 +512,7 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
if (thisboard->bustype == isa_bustype) {
/* check if io addresses are available */
if (!request_region(iobase, LABPC_SIZE,
- driver_labpc.driver_name)) {
+ driver_labpc.driver_name)) {
printk(KERN_ERR "I/O port conflict\n");
return -EIO;
}
@@ -534,9 +533,9 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
devpriv->write_byte(devpriv->command4_bits, dev->iobase + COMMAND4_REG);
if (thisboard->register_layout == labpc_1200_layout) {
devpriv->write_byte(devpriv->command5_bits,
- dev->iobase + COMMAND5_REG);
+ dev->iobase + COMMAND5_REG);
devpriv->write_byte(devpriv->command6_bits,
- dev->iobase + COMMAND6_REG);
+ dev->iobase + COMMAND6_REG);
}
/* grab our IRQ */
@@ -545,7 +544,7 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
if (thisboard->bustype == pci_bustype)
isr_flags |= IRQF_SHARED;
if (request_irq(irq, labpc_interrupt, isr_flags,
- driver_labpc.driver_name, dev)) {
+ driver_labpc.driver_name, dev)) {
printk(KERN_ERR "unable to allocate irq %u\n", irq);
return -EINVAL;
}
@@ -624,8 +623,10 @@ if (thisboard->has_ao) {
/* 8255 dio */
s = dev->subdevices + 2;
- /* if board uses io memory we have to give a custom callback
- * function to the 8255 driver */
+ /*
+ * if board uses io memory we have to give a custom callback
+ * function to the 8255 driver
+ */
if (thisboard->memory_mapped_io)
subdev_8255_init(dev, s, labpc_dio_mem_callback,
(unsigned long)(dev->iobase + DIO_BASE_REG));
@@ -733,8 +734,10 @@ static int labpc_find_device(struct comedi_device *dev, int bus, int slot)
for (mite = mite_devices; mite; mite = mite->next) {
if (mite->used)
continue;
- /* if bus/slot are specified then make sure
- * we have the right bus/slot */
+ /*
+ * if bus/slot are specified then make sure
+ * we have the right bus/slot
+ */
if (bus || slot) {
if (bus != mite->pcidev->bus->number
|| slot != PCI_SLOT(mite->pcidev->devfn))
@@ -745,8 +748,10 @@ static int labpc_find_device(struct comedi_device *dev, int bus, int slot)
continue;
if (mite_device_id(mite) == labpc_boards[i].device_id) {
devpriv->mite = mite;
- /* fixup board pointer, in case we were using
- * the dummy "ni_labpc" entry */
+ /*
+ * fixup board pointer, in case we were using
+ * the dummy "ni_labpc" entry
+ */
dev->board_ptr = &labpc_boards[i];
return 0;
}
@@ -855,26 +860,23 @@ static int labpc_ai_chanlist_invalid(const struct comedi_device *dev,
switch (mode) {
case MODE_SINGLE_CHAN_INTERVAL:
if (CR_CHAN(cmd->chanlist[i]) != channel) {
- comedi_error(dev,
- "channel scanning order specified in "
- "chanlist is not supported by hardware.\n");
+ comedi_error(dev, "channel scanning order "
+ "specified in chanlist is not supported by hardware.\n");
return 1;
}
break;
case MODE_MULT_CHAN_UP:
if (CR_CHAN(cmd->chanlist[i]) != i) {
- comedi_error(dev,
- "channel scanning order specified in "
- "chanlist is not supported by hardware.\n");
+ comedi_error(dev, "channel scanning order "
+ "specified in chanlist is not supported by hardware.\n");
return 1;
}
break;
case MODE_MULT_CHAN_DOWN:
if (CR_CHAN(cmd->chanlist[i]) !=
cmd->chanlist_len - i - 1) {
- comedi_error(dev,
- "channel scanning order specified in "
- "chanlist is not supported by hardware.\n");
+ comedi_error(dev, "channel scanning order "
+ "specified in chanlist is not supported by hardware.\n");
return 1;
}
break;
@@ -885,8 +887,7 @@ static int labpc_ai_chanlist_invalid(const struct comedi_device *dev,
}
if (CR_RANGE(cmd->chanlist[i]) != range) {
- comedi_error(dev,
- "entries in chanlist must all have "
+ comedi_error(dev, "entries in chanlist must all have "
"the same range\n");
return 1;
}
@@ -1004,8 +1005,10 @@ static int labpc_ai_cmdtest(struct comedi_device *dev,
if (err)
return 1;
- /* step 2: make sure trigger sources are unique and
- * mutually compatible */
+ /*
+ * step 2: make sure trigger sources are unique and
+ * mutually compatible
+ */
if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT)
err++;
@@ -1077,8 +1080,10 @@ static int labpc_ai_cmdtest(struct comedi_device *dev,
err++;
}
break;
- /* TRIG_EXT doesn't care since it doesn't trigger off
- * a numbered channel */
+ /*
+ * TRIG_EXT doesn't care since it doesn't trigger off
+ * a numbered channel
+ */
default:
break;
}
@@ -1136,23 +1141,29 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
/* setup hardware conversion counter */
if (cmd->stop_src == TRIG_EXT) {
- /* load counter a1 with count of 3
- * (pc+ manual says this is minimum allowed) using mode 0 */
+ /*
+ * load counter a1 with count of 3
+ * (pc+ manual says this is minimum allowed) using mode 0
+ */
ret = labpc_counter_load(dev, dev->iobase + COUNTER_A_BASE_REG,
1, 3, 0);
if (ret < 0) {
comedi_error(dev, "error loading counter a1");
return -1;
}
- } else /* otherwise, just put a1 in mode 0
- * with no count to set its output low */
+ } else /*
+ * otherwise, just put a1 in mode 0
+ * with no count to set its output low
+ */
devpriv->write_byte(INIT_A1_BITS,
- dev->iobase + COUNTER_A_CONTROL_REG);
+ dev->iobase + COUNTER_A_CONTROL_REG);
/* figure out what method we will use to transfer data */
- if (devpriv->dma_chan && /* need a dma channel allocated */
- /* dma unsafe at RT priority,
- * and too much setup time for TRIG_WAKE_EOS for */
+ if (devpriv->dma_chan && /* need a dma channel allocated */
+ /*
+ * dma unsafe at RT priority, and
+ * too much setup time for TRIG_WAKE_EOS
+ */
(cmd->flags & (TRIG_WAKE_EOS | TRIG_RT)) == 0 &&
/* only available on the isa boards */
thisboard->bustype == isa_bustype) {
@@ -1216,9 +1227,11 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
if (labpc_ai_scan_mode(cmd) == MODE_MULT_CHAN_UP ||
labpc_ai_scan_mode(cmd) == MODE_MULT_CHAN_DOWN) {
devpriv->command1_bits |= ADC_SCAN_EN_BIT;
- /* need a brief delay before enabling scan,
+ /*
+ * need a brief delay before enabling scan,
* or scan list will get screwed when you switch
- * between scan up to scan down mode - dunno why */
+ * between scan up to scan down mode - dunno why
+ */
udelay(1);
devpriv->write_byte(devpriv->command1_bits,
dev->iobase + COMMAND1_REG);
@@ -1227,8 +1240,10 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
devpriv->command4_bits = 0;
if (cmd->convert_src != TRIG_EXT)
devpriv->command4_bits |= EXT_CONVERT_DISABLE_BIT;
- /* XXX should discard first scan when using interval scanning
- * since manual says it is not synced with scan clock */
+ /*
+ * XXX should discard first scan when using interval scanning
+ * since manual says it is not synced with scan clock
+ */
if (labpc_use_continuous_mode(cmd) == 0) {
devpriv->command4_bits |= INTERVAL_SCAN_EN_BIT;
if (cmd->scan_begin_src == TRIG_EXT)
@@ -1287,8 +1302,10 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
if (xfer == isa_dma_transfer) {
irq_flags = claim_dma_lock();
disable_dma(devpriv->dma_chan);
- /* clear flip-flop to make sure 2-byte registers for
- * count and address get set correctly */
+ /*
+ * clear flip-flop to make sure 2-byte registers for
+ * count and address get set correctly
+ */
clear_dma_ff(devpriv->dma_chan);
set_dma_addr(devpriv->dma_chan,
virt_to_bus(devpriv->dma_buffer));
@@ -1394,8 +1411,10 @@ static irqreturn_t labpc_interrupt(int irq, void *d)
}
if (devpriv->current_transfer == isa_dma_transfer) {
- /* if a dma terminal count of external
- * stop trigger has occurred */
+ /*
+ * if a dma terminal count of external
+ * stop trigger has occurred
+ */
if (devpriv->status1_bits & DMATC_BIT ||
(thisboard->register_layout == labpc_1200_layout
&& devpriv->status2_bits & A1_TC_BIT)) {
@@ -1487,13 +1506,16 @@ static void labpc_drain_dma(struct comedi_device *dev)
flags = claim_dma_lock();
disable_dma(devpriv->dma_chan);
- /* clear flip-flop to make sure 2-byte registers for
- * count and address get set correctly */
+ /*
+ * clear flip-flop to make sure 2-byte registers for
+ * count and address get set correctly
+ */
clear_dma_ff(devpriv->dma_chan);
/* figure out how many points to read */
max_points = devpriv->dma_transfer_size / sample_size;
- /* residue is the number of points left to be done on the dma
+ /*
+ * residue is the number of points left to be done on the dma
* transfer. It should always be zero at this point unless
* the stop_src is set to external triggering.
*/
@@ -1537,8 +1559,10 @@ static void handle_isa_dma(struct comedi_device *dev)
devpriv->write_byte(0x1, dev->iobase + DMATC_CLEAR_REG);
}
-/* makes sure all data aquired by board is transfered to comedi (used
- * when aquisition is terminated by stop_src == TRIG_EXT). */
+/*
+ * makes sure all data aquired by board is transfered to comedi
+ * (used when aquisition is terminated by stop_src == TRIG_EXT)
+ */
static void labpc_drain_dregs(struct comedi_device *dev)
{
if (devpriv->current_transfer == isa_dma_transfer)
@@ -1605,8 +1629,10 @@ static int labpc_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
devpriv->command4_bits |= ADC_DIFF_BIT;
devpriv->write_byte(devpriv->command4_bits, dev->iobase + COMMAND4_REG);
- /* initialize pacer counter output to
- * make sure it doesn't cause any problems */
+ /*
+ * initialize pacer counter output to
+ * make sure it doesn't cause any problems
+ */
devpriv->write_byte(INIT_A0_BITS, dev->iobase + COUNTER_A_CONTROL_REG);
labpc_clear_adc_fifo(dev);
@@ -1643,9 +1669,11 @@ static int labpc_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
channel = CR_CHAN(insn->chanspec);
- /* turn off pacing of analog output channel */
- /* note: hardware bug in daqcard-1200 means pacing cannot
- * be independently enabled/disabled for its the two channels */
+ /*
+ * turn off pacing of analog output channel
+ * NOTE: hardware bug in daqcard-1200 means pacing cannot
+ * be independently enabled/disabled for its the two channels
+ */
spin_lock_irqsave(&dev->spinlock, flags);
devpriv->command2_bits &= ~DAC_PACED_BIT(channel);
devpriv->write_byte(devpriv->command2_bits, dev->iobase + COMMAND2_REG);
@@ -1720,9 +1748,8 @@ static int labpc_eeprom_write_insn(struct comedi_device *dev,
/* only allow writes to user area of eeprom */
if (channel < 16 || channel > 127) {
- printk
- ("eeprom writes are only allowed to channels 16 through 127 "
- "(the pointer and user areas)");
+ printk(KERN_ERR "eeprom writes are only allowed to channels "
+ "16 through 127 (the pointer and user areas)");
return -EINVAL;
}
@@ -1760,17 +1787,20 @@ static unsigned int labpc_suggest_transfer_size(struct comedi_cmd cmd)
/* figures out what counter values to use based on command */
static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd)
{
- const int max_counter_value = 0x10000; /* max value for 16 bit counter
- * in mode 2 */
- const int min_counter_value = 2; /* min value for 16 bit counter
- * in mode 2 */
+ /* max value for 16 bit counter in mode 2 */
+ const int max_counter_value = 0x10000;
+ /* min value for 16 bit counter in mode 2 */
+ const int min_counter_value = 2;
unsigned int base_period;
-
- /* if both convert and scan triggers are TRIG_TIMER,
- * then they both rely on counter b0 */
+ /*
+ * if both convert and scan triggers are TRIG_TIMER,
+ * then they both rely on counter b0
+ */
if (labpc_ai_convert_period(cmd) && labpc_ai_scan_period(cmd)) {
- /* pick the lowest b0 divisor value we can (for maximum input
- * clock speed on convert and scan counters) */
+ /*
+ * pick the lowest b0 divisor value we can (for maximum input
+ * clock speed on convert and scan counters)
+ */
devpriv->divisor_b0 = (labpc_ai_scan_period(cmd) - 1) /
(LABPC_TIMER_BASE * max_counter_value) + 1;
if (devpriv->divisor_b0 < min_counter_value)
@@ -1820,14 +1850,18 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd)
base_period * devpriv->divisor_a0);
labpc_set_ai_scan_period(cmd,
base_period * devpriv->divisor_b1);
- /* if only one TRIG_TIMER is used,
- * we can employ the generic cascaded timing functions */
+ /*
+ * if only one TRIG_TIMER is used, we can employ the generic
+ * cascaded timing functions
+ */
} else if (labpc_ai_scan_period(cmd)) {
unsigned int scan_period;
scan_period = labpc_ai_scan_period(cmd);
- /* calculate cascaded counter values
- * that give desired scan timing */
+ /*
+ * calculate cascaded counter values that give desired
+ * scan timing
+ */
i8253_cascade_ns_to_timer_2div(LABPC_TIMER_BASE,
&(devpriv->divisor_b1),
&(devpriv->divisor_b0),
@@ -1838,8 +1872,10 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd)
unsigned int convert_period;
convert_period = labpc_ai_convert_period(cmd);
- /* calculate cascaded counter values
- * that give desired conversion timing */
+ /*
+ * calculate cascaded counter values that give desired
+ * conversion timing
+ */
i8253_cascade_ns_to_timer_2div(LABPC_TIMER_BASE,
&(devpriv->divisor_a0),
&(devpriv->divisor_b0),
@@ -1919,8 +1955,8 @@ static unsigned int labpc_eeprom_read(struct comedi_device *dev,
unsigned int address)
{
unsigned int value;
- const int read_instruction = 0x3; /* bits to tell eeprom
- * to expect a read */
+ /* bits to tell eeprom to expect a read */
+ const int read_instruction = 0x3;
const int write_length = 8; /* 8 bit write lengths to eeprom */
/* enable read/write to eeprom */
--
1.6.3.3
--
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