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-rw-r--r--drivers/staging/iio/accel/adis16201_ring.c3
-rw-r--r--drivers/staging/iio/accel/adis16203_ring.c3
-rw-r--r--drivers/staging/iio/accel/adis16204_ring.c3
-rw-r--r--drivers/staging/iio/accel/adis16209_ring.c4
-rw-r--r--drivers/staging/iio/accel/adis16240_ring.c3
-rw-r--r--drivers/staging/iio/accel/lis3l02dq_ring.c4
-rw-r--r--drivers/staging/iio/adc/ad7606_ring.c3
-rw-r--r--drivers/staging/iio/gyro/adis16260_ring.c3
-rw-r--r--drivers/staging/iio/iio.h2
-rw-r--r--drivers/staging/iio/iio_simple_dummy_buffer.c9
-rw-r--r--drivers/staging/iio/imu/adis16400_ring.c4
-rw-r--r--drivers/staging/iio/industrialio-buffer.c6
12 files changed, 19 insertions, 28 deletions
diff --git a/drivers/staging/iio/accel/adis16201_ring.c b/drivers/staging/iio/accel/adis16201_ring.c
index 97f9e6b159d9..1370e32dead6 100644
--- a/drivers/staging/iio/accel/adis16201_ring.c
+++ b/drivers/staging/iio/accel/adis16201_ring.c
@@ -66,9 +66,8 @@ static irqreturn_t adis16201_trigger_handler(int irq, void *p)
int i = 0;
s16 *data;
- size_t datasize = ring->access->get_bytes_per_datum(ring);
- data = kmalloc(datasize, GFP_KERNEL);
+ data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
if (data == NULL) {
dev_err(&st->us->dev, "memory alloc failed in ring bh");
return -ENOMEM;
diff --git a/drivers/staging/iio/accel/adis16203_ring.c b/drivers/staging/iio/accel/adis16203_ring.c
index 6a8963db4f60..86f4efb7faba 100644
--- a/drivers/staging/iio/accel/adis16203_ring.c
+++ b/drivers/staging/iio/accel/adis16203_ring.c
@@ -66,9 +66,8 @@ static irqreturn_t adis16203_trigger_handler(int irq, void *p)
int i = 0;
s16 *data;
- size_t datasize = ring->access->get_bytes_per_datum(ring);
- data = kmalloc(datasize, GFP_KERNEL);
+ data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
if (data == NULL) {
dev_err(&st->us->dev, "memory alloc failed in ring bh");
return -ENOMEM;
diff --git a/drivers/staging/iio/accel/adis16204_ring.c b/drivers/staging/iio/accel/adis16204_ring.c
index 5c8ab7338864..34ef11f053fb 100644
--- a/drivers/staging/iio/accel/adis16204_ring.c
+++ b/drivers/staging/iio/accel/adis16204_ring.c
@@ -63,9 +63,8 @@ static irqreturn_t adis16204_trigger_handler(int irq, void *p)
struct iio_buffer *ring = indio_dev->buffer;
int i = 0;
s16 *data;
- size_t datasize = ring->access->get_bytes_per_datum(ring);
- data = kmalloc(datasize, GFP_KERNEL);
+ data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
if (data == NULL) {
dev_err(&st->us->dev, "memory alloc failed in ring bh");
return -ENOMEM;
diff --git a/drivers/staging/iio/accel/adis16209_ring.c b/drivers/staging/iio/accel/adis16209_ring.c
index 57254b6b38b7..1424d4896ea6 100644
--- a/drivers/staging/iio/accel/adis16209_ring.c
+++ b/drivers/staging/iio/accel/adis16209_ring.c
@@ -61,12 +61,10 @@ static irqreturn_t adis16209_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct adis16209_state *st = iio_priv(indio_dev);
struct iio_buffer *ring = indio_dev->buffer;
-
int i = 0;
s16 *data;
- size_t datasize = ring->access->get_bytes_per_datum(ring);
- data = kmalloc(datasize , GFP_KERNEL);
+ data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
if (data == NULL) {
dev_err(&st->us->dev, "memory alloc failed in ring bh");
return -ENOMEM;
diff --git a/drivers/staging/iio/accel/adis16240_ring.c b/drivers/staging/iio/accel/adis16240_ring.c
index 43ba84e993ad..9ff0634e0963 100644
--- a/drivers/staging/iio/accel/adis16240_ring.c
+++ b/drivers/staging/iio/accel/adis16240_ring.c
@@ -61,9 +61,8 @@ static irqreturn_t adis16240_trigger_handler(int irq, void *p)
int i = 0;
s16 *data;
- size_t datasize = ring->access->get_bytes_per_datum(ring);
- data = kmalloc(datasize, GFP_KERNEL);
+ data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
if (data == NULL) {
dev_err(&st->us->dev, "memory alloc failed in ring bh");
return -ENOMEM;
diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index 0fc3973f32ae..3bdc1021ddd5 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -137,9 +137,9 @@ static irqreturn_t lis3l02dq_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct iio_buffer *buffer = indio_dev->buffer;
int len = 0;
- size_t datasize = buffer->access->get_bytes_per_datum(buffer);
- char *data = kmalloc(datasize, GFP_KERNEL);
+ char *data;
+ data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
if (data == NULL) {
dev_err(indio_dev->dev.parent,
"memory alloc failed in buffer bh");
diff --git a/drivers/staging/iio/adc/ad7606_ring.c b/drivers/staging/iio/adc/ad7606_ring.c
index 1ef9fbcaf2de..6cbf24258724 100644
--- a/drivers/staging/iio/adc/ad7606_ring.c
+++ b/drivers/staging/iio/adc/ad7606_ring.c
@@ -51,8 +51,7 @@ static void ad7606_poll_bh_to_ring(struct work_struct *work_s)
__u8 *buf;
int ret;
- buf = kzalloc(ring->access->get_bytes_per_datum(ring),
- GFP_KERNEL);
+ buf = kzalloc(indio_dev->scan_bytes, GFP_KERNEL);
if (buf == NULL)
return;
diff --git a/drivers/staging/iio/gyro/adis16260_ring.c b/drivers/staging/iio/gyro/adis16260_ring.c
index 711f15122a08..18fc73c66596 100644
--- a/drivers/staging/iio/gyro/adis16260_ring.c
+++ b/drivers/staging/iio/gyro/adis16260_ring.c
@@ -66,9 +66,8 @@ static irqreturn_t adis16260_trigger_handler(int irq, void *p)
struct iio_buffer *ring = indio_dev->buffer;
int i = 0;
s16 *data;
- size_t datasize = ring->access->get_bytes_per_datum(ring);
- data = kmalloc(datasize , GFP_KERNEL);
+ data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
if (data == NULL) {
dev_err(&st->us->dev, "memory alloc failed in ring bh");
return -ENOMEM;
diff --git a/drivers/staging/iio/iio.h b/drivers/staging/iio/iio.h
index 6832c98b3a8b..7a10aed1ec9d 100644
--- a/drivers/staging/iio/iio.h
+++ b/drivers/staging/iio/iio.h
@@ -299,6 +299,7 @@ struct iio_buffer_setup_ops {
* and owner
* @event_interface: [INTERN] event chrdevs associated with interrupt lines
* @buffer: [DRIVER] any buffer present
+ * @scan_bytes: [INTERN] num bytes captured to be fed to buffer demux
* @mlock: [INTERN] lock used to prevent simultaneous device state
* changes
* @available_scan_masks: [DRIVER] optional array of allowed bitmasks
@@ -335,6 +336,7 @@ struct iio_dev {
struct iio_event_interface *event_interface;
struct iio_buffer *buffer;
+ int scan_bytes;
struct mutex mlock;
const unsigned long *available_scan_masks;
diff --git a/drivers/staging/iio/iio_simple_dummy_buffer.c b/drivers/staging/iio/iio_simple_dummy_buffer.c
index bb4daf744362..61a26229630e 100644
--- a/drivers/staging/iio/iio_simple_dummy_buffer.c
+++ b/drivers/staging/iio/iio_simple_dummy_buffer.c
@@ -48,12 +48,9 @@ static irqreturn_t iio_simple_dummy_trigger_h(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct iio_buffer *buffer = indio_dev->buffer;
int len = 0;
- /*
- * The datasize is obtained from the buffer. It was stored when
- * the preenable setup function was called.
- */
- size_t datasize = buffer->access->get_bytes_per_datum(buffer);
- u16 *data = kmalloc(datasize, GFP_KERNEL);
+ u16 *data;
+
+ data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
if (data == NULL)
return -ENOMEM;
diff --git a/drivers/staging/iio/imu/adis16400_ring.c b/drivers/staging/iio/imu/adis16400_ring.c
index 8daa038b23e6..d964004fe11b 100644
--- a/drivers/staging/iio/imu/adis16400_ring.c
+++ b/drivers/staging/iio/imu/adis16400_ring.c
@@ -119,12 +119,12 @@ static irqreturn_t adis16400_trigger_handler(int irq, void *p)
struct iio_buffer *ring = indio_dev->buffer;
int i = 0, j, ret = 0;
s16 *data;
- size_t datasize = ring->access->get_bytes_per_datum(ring);
+
/* Asumption that long is enough for maximum channels */
unsigned long mask = *indio_dev->active_scan_mask;
int scan_count = bitmap_weight(indio_dev->active_scan_mask,
indio_dev->masklength);
- data = kmalloc(datasize , GFP_KERNEL);
+ data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
if (data == NULL) {
dev_err(&st->us->dev, "memory alloc failed in ring bh");
return -ENOMEM;
diff --git a/drivers/staging/iio/industrialio-buffer.c b/drivers/staging/iio/industrialio-buffer.c
index 03591619c74f..f6cb0abbc643 100644
--- a/drivers/staging/iio/industrialio-buffer.c
+++ b/drivers/staging/iio/industrialio-buffer.c
@@ -536,13 +536,13 @@ static int iio_compute_scan_bytes(struct iio_dev *indio_dev, const long *mask,
int iio_sw_buffer_preenable(struct iio_dev *indio_dev)
{
struct iio_buffer *buffer = indio_dev->buffer;
- unsigned bytes;
dev_dbg(&indio_dev->dev, "%s\n", __func__);
/* How much space will the demuxed element take? */
- bytes = iio_compute_scan_bytes(indio_dev, buffer->scan_mask,
+ indio_dev->scan_bytes =
+ iio_compute_scan_bytes(indio_dev, buffer->scan_mask,
buffer->scan_timestamp);
- buffer->access->set_bytes_per_datum(buffer, bytes);
+ buffer->access->set_bytes_per_datum(buffer, indio_dev->scan_bytes);
/* What scan mask do we actually have ?*/
if (indio_dev->available_scan_masks)
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-09 13:26:34 +0000