| Message ID | 20240702-dev-iio-masklength-private-v1-3-98193bf536a6@analog.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | iio: make masklength __private (round 1) | expand |
On Tue, Jul 2, 2024 at 7:02 PM Nuno Sa via B4 Relay <devnull+nuno.sa.analog.com@kernel.org> wrote: > > From: Nuno Sa <nuno.sa@analog.com> > > Use iio_get_masklength() to access '.masklength' so it can be annotated > as __private when there are no more direct users of it. > > While at it, remove some unneeded line breaks. > Reviewed-by: Alexandru Ardelean <aardelean@baylibre.com> > Signed-off-by: Nuno Sa <nuno.sa@analog.com> > --- > drivers/iio/buffer/industrialio-buffer-cb.c | 2 +- > drivers/iio/buffer/industrialio-hw-consumer.c | 4 +-- > drivers/iio/industrialio-buffer.c | 50 ++++++++++++--------------- > 3 files changed, 26 insertions(+), 30 deletions(-) > > diff --git a/drivers/iio/buffer/industrialio-buffer-cb.c b/drivers/iio/buffer/industrialio-buffer-cb.c > index 4c12b7a94af59..4befc9f55201e 100644 > --- a/drivers/iio/buffer/industrialio-buffer-cb.c > +++ b/drivers/iio/buffer/industrialio-buffer-cb.c > @@ -77,7 +77,7 @@ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev, > } > > cb_buff->indio_dev = cb_buff->channels[0].indio_dev; > - cb_buff->buffer.scan_mask = bitmap_zalloc(cb_buff->indio_dev->masklength, > + cb_buff->buffer.scan_mask = bitmap_zalloc(iio_get_masklength(cb_buff->indio_dev), > GFP_KERNEL); > if (cb_buff->buffer.scan_mask == NULL) { > ret = -ENOMEM; > diff --git a/drivers/iio/buffer/industrialio-hw-consumer.c b/drivers/iio/buffer/industrialio-hw-consumer.c > index fb58f599a80b1..526b2a8d725d1 100644 > --- a/drivers/iio/buffer/industrialio-hw-consumer.c > +++ b/drivers/iio/buffer/industrialio-hw-consumer.c > @@ -52,6 +52,7 @@ static const struct iio_buffer_access_funcs iio_hw_buf_access = { > static struct hw_consumer_buffer *iio_hw_consumer_get_buffer( > struct iio_hw_consumer *hwc, struct iio_dev *indio_dev) > { > + unsigned int mask_longs = BITS_TO_LONGS(iio_get_masklength(indio_dev)); > struct hw_consumer_buffer *buf; > > list_for_each_entry(buf, &hwc->buffers, head) { > @@ -59,8 +60,7 @@ static struct hw_consumer_buffer *iio_hw_consumer_get_buffer( > return buf; > } > > - buf = kzalloc(struct_size(buf, scan_mask, BITS_TO_LONGS(indio_dev->masklength)), > - GFP_KERNEL); > + buf = kzalloc(struct_size(buf, scan_mask, mask_longs), GFP_KERNEL); > if (!buf) > return NULL; > > diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c > index 0138b21b244f0..389bfb238b510 100644 > --- a/drivers/iio/industrialio-buffer.c > +++ b/drivers/iio/industrialio-buffer.c > @@ -473,18 +473,19 @@ static bool iio_validate_scan_mask(struct iio_dev *indio_dev, > static int iio_scan_mask_set(struct iio_dev *indio_dev, > struct iio_buffer *buffer, int bit) > { > + unsigned int masklength = iio_get_masklength(indio_dev); > const unsigned long *mask; > unsigned long *trialmask; > > - if (!indio_dev->masklength) { > + if (!masklength) { > WARN(1, "Trying to set scanmask prior to registering buffer\n"); > return -EINVAL; > } > > - trialmask = bitmap_alloc(indio_dev->masklength, GFP_KERNEL); > + trialmask = bitmap_alloc(masklength, GFP_KERNEL); > if (!trialmask) > return -ENOMEM; > - bitmap_copy(trialmask, buffer->scan_mask, indio_dev->masklength); > + bitmap_copy(trialmask, buffer->scan_mask, masklength); > set_bit(bit, trialmask); > > if (!iio_validate_scan_mask(indio_dev, trialmask)) > @@ -492,12 +493,11 @@ static int iio_scan_mask_set(struct iio_dev *indio_dev, > > if (indio_dev->available_scan_masks) { > mask = iio_scan_mask_match(indio_dev->available_scan_masks, > - indio_dev->masklength, > - trialmask, false); > + masklength, trialmask, false); > if (!mask) > goto err_invalid_mask; > } > - bitmap_copy(buffer->scan_mask, trialmask, indio_dev->masklength); > + bitmap_copy(buffer->scan_mask, trialmask, masklength); > > bitmap_free(trialmask); > > @@ -517,7 +517,7 @@ static int iio_scan_mask_clear(struct iio_buffer *buffer, int bit) > static int iio_scan_mask_query(struct iio_dev *indio_dev, > struct iio_buffer *buffer, int bit) > { > - if (bit > indio_dev->masklength) > + if (bit > iio_get_masklength(indio_dev)) > return -EINVAL; > > if (!buffer->scan_mask) > @@ -733,8 +733,7 @@ static int iio_compute_scan_bytes(struct iio_dev *indio_dev, > int length, i, largest = 0; > > /* How much space will the demuxed element take? */ > - for_each_set_bit(i, mask, > - indio_dev->masklength) { > + for_each_set_bit(i, mask, iio_get_masklength(indio_dev)) { > length = iio_storage_bytes_for_si(indio_dev, i); > if (length < 0) > return length; > @@ -855,6 +854,7 @@ static int iio_verify_update(struct iio_dev *indio_dev, > struct iio_device_config *config) > { > struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev); > + unsigned int masklength = iio_get_masklength(indio_dev); > unsigned long *compound_mask; > const unsigned long *scan_mask; > bool strict_scanmask = false; > @@ -863,7 +863,7 @@ static int iio_verify_update(struct iio_dev *indio_dev, > unsigned int modes; > > if (insert_buffer && > - bitmap_empty(insert_buffer->scan_mask, indio_dev->masklength)) { > + bitmap_empty(insert_buffer->scan_mask, masklength)) { > dev_dbg(&indio_dev->dev, > "At least one scan element must be enabled first\n"); > return -EINVAL; > @@ -917,7 +917,7 @@ static int iio_verify_update(struct iio_dev *indio_dev, > } > > /* What scan mask do we actually have? */ > - compound_mask = bitmap_zalloc(indio_dev->masklength, GFP_KERNEL); > + compound_mask = bitmap_zalloc(masklength, GFP_KERNEL); > if (!compound_mask) > return -ENOMEM; > > @@ -927,20 +927,19 @@ static int iio_verify_update(struct iio_dev *indio_dev, > if (buffer == remove_buffer) > continue; > bitmap_or(compound_mask, compound_mask, buffer->scan_mask, > - indio_dev->masklength); > + masklength); > scan_timestamp |= buffer->scan_timestamp; > } > > if (insert_buffer) { > bitmap_or(compound_mask, compound_mask, > - insert_buffer->scan_mask, indio_dev->masklength); > + insert_buffer->scan_mask, masklength); > scan_timestamp |= insert_buffer->scan_timestamp; > } > > if (indio_dev->available_scan_masks) { > scan_mask = iio_scan_mask_match(indio_dev->available_scan_masks, > - indio_dev->masklength, > - compound_mask, > + masklength, compound_mask, > strict_scanmask); > bitmap_free(compound_mask); > if (!scan_mask) > @@ -1005,6 +1004,7 @@ static int iio_buffer_add_demux(struct iio_buffer *buffer, > static int iio_buffer_update_demux(struct iio_dev *indio_dev, > struct iio_buffer *buffer) > { > + unsigned int masklength = iio_get_masklength(indio_dev); > int ret, in_ind = -1, out_ind, length; > unsigned int in_loc = 0, out_loc = 0; > struct iio_demux_table *p = NULL; > @@ -1016,17 +1016,13 @@ static int iio_buffer_update_demux(struct iio_dev *indio_dev, > > /* First work out which scan mode we will actually have */ > if (bitmap_equal(indio_dev->active_scan_mask, > - buffer->scan_mask, > - indio_dev->masklength)) > + buffer->scan_mask, masklength)) > return 0; > > /* Now we have the two masks, work from least sig and build up sizes */ > - for_each_set_bit(out_ind, > - buffer->scan_mask, > - indio_dev->masklength) { > + for_each_set_bit(out_ind, buffer->scan_mask, masklength) { > in_ind = find_next_bit(indio_dev->active_scan_mask, > - indio_dev->masklength, > - in_ind + 1); > + masklength, in_ind + 1); > while (in_ind != out_ind) { > ret = iio_storage_bytes_for_si(indio_dev, in_ind); > if (ret < 0) > @@ -1036,8 +1032,7 @@ static int iio_buffer_update_demux(struct iio_dev *indio_dev, > /* Make sure we are aligned */ > in_loc = roundup(in_loc, length) + length; > in_ind = find_next_bit(indio_dev->active_scan_mask, > - indio_dev->masklength, > - in_ind + 1); > + masklength, in_ind + 1); > } > ret = iio_storage_bytes_for_si(indio_dev, in_ind); > if (ret < 0) > @@ -1646,6 +1641,7 @@ static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer, > int index) > { > struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev); > + unsigned int masklength = iio_get_masklength(indio_dev); > struct iio_dev_attr *p; > const struct iio_dev_attr *id_attr; > struct attribute **attr; > @@ -1708,8 +1704,8 @@ static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer, > iio_dev_opaque->scan_index_timestamp = > channels[i].scan_index; > } > - if (indio_dev->masklength && !buffer->scan_mask) { > - buffer->scan_mask = bitmap_zalloc(indio_dev->masklength, > + if (masklength && !buffer->scan_mask) { > + buffer->scan_mask = bitmap_zalloc(masklength, > GFP_KERNEL); > if (!buffer->scan_mask) { > ret = -ENOMEM; > @@ -1879,7 +1875,7 @@ void iio_buffers_free_sysfs_and_mask(struct iio_dev *indio_dev) > bool iio_validate_scan_mask_onehot(struct iio_dev *indio_dev, > const unsigned long *mask) > { > - return bitmap_weight(mask, indio_dev->masklength) == 1; > + return bitmap_weight(mask, iio_get_masklength(indio_dev)) == 1; > } > EXPORT_SYMBOL_GPL(iio_validate_scan_mask_onehot); > > > -- > 2.45.2 > > >
diff --git a/drivers/iio/buffer/industrialio-buffer-cb.c b/drivers/iio/buffer/industrialio-buffer-cb.c index 4c12b7a94af59..4befc9f55201e 100644 --- a/drivers/iio/buffer/industrialio-buffer-cb.c +++ b/drivers/iio/buffer/industrialio-buffer-cb.c @@ -77,7 +77,7 @@ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev, } cb_buff->indio_dev = cb_buff->channels[0].indio_dev; - cb_buff->buffer.scan_mask = bitmap_zalloc(cb_buff->indio_dev->masklength, + cb_buff->buffer.scan_mask = bitmap_zalloc(iio_get_masklength(cb_buff->indio_dev), GFP_KERNEL); if (cb_buff->buffer.scan_mask == NULL) { ret = -ENOMEM; diff --git a/drivers/iio/buffer/industrialio-hw-consumer.c b/drivers/iio/buffer/industrialio-hw-consumer.c index fb58f599a80b1..526b2a8d725d1 100644 --- a/drivers/iio/buffer/industrialio-hw-consumer.c +++ b/drivers/iio/buffer/industrialio-hw-consumer.c @@ -52,6 +52,7 @@ static const struct iio_buffer_access_funcs iio_hw_buf_access = { static struct hw_consumer_buffer *iio_hw_consumer_get_buffer( struct iio_hw_consumer *hwc, struct iio_dev *indio_dev) { + unsigned int mask_longs = BITS_TO_LONGS(iio_get_masklength(indio_dev)); struct hw_consumer_buffer *buf; list_for_each_entry(buf, &hwc->buffers, head) { @@ -59,8 +60,7 @@ static struct hw_consumer_buffer *iio_hw_consumer_get_buffer( return buf; } - buf = kzalloc(struct_size(buf, scan_mask, BITS_TO_LONGS(indio_dev->masklength)), - GFP_KERNEL); + buf = kzalloc(struct_size(buf, scan_mask, mask_longs), GFP_KERNEL); if (!buf) return NULL; diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index 0138b21b244f0..389bfb238b510 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -473,18 +473,19 @@ static bool iio_validate_scan_mask(struct iio_dev *indio_dev, static int iio_scan_mask_set(struct iio_dev *indio_dev, struct iio_buffer *buffer, int bit) { + unsigned int masklength = iio_get_masklength(indio_dev); const unsigned long *mask; unsigned long *trialmask; - if (!indio_dev->masklength) { + if (!masklength) { WARN(1, "Trying to set scanmask prior to registering buffer\n"); return -EINVAL; } - trialmask = bitmap_alloc(indio_dev->masklength, GFP_KERNEL); + trialmask = bitmap_alloc(masklength, GFP_KERNEL); if (!trialmask) return -ENOMEM; - bitmap_copy(trialmask, buffer->scan_mask, indio_dev->masklength); + bitmap_copy(trialmask, buffer->scan_mask, masklength); set_bit(bit, trialmask); if (!iio_validate_scan_mask(indio_dev, trialmask)) @@ -492,12 +493,11 @@ static int iio_scan_mask_set(struct iio_dev *indio_dev, if (indio_dev->available_scan_masks) { mask = iio_scan_mask_match(indio_dev->available_scan_masks, - indio_dev->masklength, - trialmask, false); + masklength, trialmask, false); if (!mask) goto err_invalid_mask; } - bitmap_copy(buffer->scan_mask, trialmask, indio_dev->masklength); + bitmap_copy(buffer->scan_mask, trialmask, masklength); bitmap_free(trialmask); @@ -517,7 +517,7 @@ static int iio_scan_mask_clear(struct iio_buffer *buffer, int bit) static int iio_scan_mask_query(struct iio_dev *indio_dev, struct iio_buffer *buffer, int bit) { - if (bit > indio_dev->masklength) + if (bit > iio_get_masklength(indio_dev)) return -EINVAL; if (!buffer->scan_mask) @@ -733,8 +733,7 @@ static int iio_compute_scan_bytes(struct iio_dev *indio_dev, int length, i, largest = 0; /* How much space will the demuxed element take? */ - for_each_set_bit(i, mask, - indio_dev->masklength) { + for_each_set_bit(i, mask, iio_get_masklength(indio_dev)) { length = iio_storage_bytes_for_si(indio_dev, i); if (length < 0) return length; @@ -855,6 +854,7 @@ static int iio_verify_update(struct iio_dev *indio_dev, struct iio_device_config *config) { struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev); + unsigned int masklength = iio_get_masklength(indio_dev); unsigned long *compound_mask; const unsigned long *scan_mask; bool strict_scanmask = false; @@ -863,7 +863,7 @@ static int iio_verify_update(struct iio_dev *indio_dev, unsigned int modes; if (insert_buffer && - bitmap_empty(insert_buffer->scan_mask, indio_dev->masklength)) { + bitmap_empty(insert_buffer->scan_mask, masklength)) { dev_dbg(&indio_dev->dev, "At least one scan element must be enabled first\n"); return -EINVAL; @@ -917,7 +917,7 @@ static int iio_verify_update(struct iio_dev *indio_dev, } /* What scan mask do we actually have? */ - compound_mask = bitmap_zalloc(indio_dev->masklength, GFP_KERNEL); + compound_mask = bitmap_zalloc(masklength, GFP_KERNEL); if (!compound_mask) return -ENOMEM; @@ -927,20 +927,19 @@ static int iio_verify_update(struct iio_dev *indio_dev, if (buffer == remove_buffer) continue; bitmap_or(compound_mask, compound_mask, buffer->scan_mask, - indio_dev->masklength); + masklength); scan_timestamp |= buffer->scan_timestamp; } if (insert_buffer) { bitmap_or(compound_mask, compound_mask, - insert_buffer->scan_mask, indio_dev->masklength); + insert_buffer->scan_mask, masklength); scan_timestamp |= insert_buffer->scan_timestamp; } if (indio_dev->available_scan_masks) { scan_mask = iio_scan_mask_match(indio_dev->available_scan_masks, - indio_dev->masklength, - compound_mask, + masklength, compound_mask, strict_scanmask); bitmap_free(compound_mask); if (!scan_mask) @@ -1005,6 +1004,7 @@ static int iio_buffer_add_demux(struct iio_buffer *buffer, static int iio_buffer_update_demux(struct iio_dev *indio_dev, struct iio_buffer *buffer) { + unsigned int masklength = iio_get_masklength(indio_dev); int ret, in_ind = -1, out_ind, length; unsigned int in_loc = 0, out_loc = 0; struct iio_demux_table *p = NULL; @@ -1016,17 +1016,13 @@ static int iio_buffer_update_demux(struct iio_dev *indio_dev, /* First work out which scan mode we will actually have */ if (bitmap_equal(indio_dev->active_scan_mask, - buffer->scan_mask, - indio_dev->masklength)) + buffer->scan_mask, masklength)) return 0; /* Now we have the two masks, work from least sig and build up sizes */ - for_each_set_bit(out_ind, - buffer->scan_mask, - indio_dev->masklength) { + for_each_set_bit(out_ind, buffer->scan_mask, masklength) { in_ind = find_next_bit(indio_dev->active_scan_mask, - indio_dev->masklength, - in_ind + 1); + masklength, in_ind + 1); while (in_ind != out_ind) { ret = iio_storage_bytes_for_si(indio_dev, in_ind); if (ret < 0) @@ -1036,8 +1032,7 @@ static int iio_buffer_update_demux(struct iio_dev *indio_dev, /* Make sure we are aligned */ in_loc = roundup(in_loc, length) + length; in_ind = find_next_bit(indio_dev->active_scan_mask, - indio_dev->masklength, - in_ind + 1); + masklength, in_ind + 1); } ret = iio_storage_bytes_for_si(indio_dev, in_ind); if (ret < 0) @@ -1646,6 +1641,7 @@ static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer, int index) { struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev); + unsigned int masklength = iio_get_masklength(indio_dev); struct iio_dev_attr *p; const struct iio_dev_attr *id_attr; struct attribute **attr; @@ -1708,8 +1704,8 @@ static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer, iio_dev_opaque->scan_index_timestamp = channels[i].scan_index; } - if (indio_dev->masklength && !buffer->scan_mask) { - buffer->scan_mask = bitmap_zalloc(indio_dev->masklength, + if (masklength && !buffer->scan_mask) { + buffer->scan_mask = bitmap_zalloc(masklength, GFP_KERNEL); if (!buffer->scan_mask) { ret = -ENOMEM; @@ -1879,7 +1875,7 @@ void iio_buffers_free_sysfs_and_mask(struct iio_dev *indio_dev) bool iio_validate_scan_mask_onehot(struct iio_dev *indio_dev, const unsigned long *mask) { - return bitmap_weight(mask, indio_dev->masklength) == 1; + return bitmap_weight(mask, iio_get_masklength(indio_dev)) == 1; } EXPORT_SYMBOL_GPL(iio_validate_scan_mask_onehot);