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authorJason Gunthorpe <jgg@nvidia.com>2020-09-17 15:12:22 -0300
committerJason Gunthorpe <jgg@nvidia.com>2020-09-18 10:31:45 -0300
commit5dee5872f87552cfb173c899d35fc1413c2aa77f (patch)
tree273a8551247785dbec22d1e7c55e2b636e1c9e8e /drivers/iio/light/max44000.c
parentc0a6b5ecc5b7dd028c2921415ea036074a8f8b00 (diff)
parent376ceb31ff879c2ee6b48eef841d6fa7720f6f43 (diff)
Merge branch 'mlx5_active_speed' into rdma.git for-next
Leon Romanovsky says: ==================== IBTA declares speed as 16 bits, but kernel stores it in u8. This series fixes in-kernel declaration while keeping external interface intact. ==================== Based on the mlx5-next branch at git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux due to dependencies. * branch 'mlx5_active_speed': RDMA: Fix link active_speed size RDMA/mlx5: Delete duplicated mlx5_ptys_width enum net/mlx5: Refactor query port speed functions
Diffstat (limited to 'drivers/iio/light/max44000.c')
-rw-r--r--drivers/iio/light/max44000.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/iio/light/max44000.c b/drivers/iio/light/max44000.c
index aa8ed1e3e89a..b8e721bced5b 100644
--- a/drivers/iio/light/max44000.c
+++ b/drivers/iio/light/max44000.c
@@ -75,6 +75,11 @@
struct max44000_data {
struct mutex lock;
struct regmap *regmap;
+ /* Ensure naturally aligned timestamp */
+ struct {
+ u16 channels[2];
+ s64 ts __aligned(8);
+ } scan;
};
/* Default scale is set to the minimum of 0.03125 or 1 / (1 << 5) lux */
@@ -488,7 +493,6 @@ static irqreturn_t max44000_trigger_handler(int irq, void *p)
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct max44000_data *data = iio_priv(indio_dev);
- u16 buf[8]; /* 2x u16 + padding + 8 bytes timestamp */
int index = 0;
unsigned int regval;
int ret;
@@ -498,17 +502,17 @@ static irqreturn_t max44000_trigger_handler(int irq, void *p)
ret = max44000_read_alsval(data);
if (ret < 0)
goto out_unlock;
- buf[index++] = ret;
+ data->scan.channels[index++] = ret;
}
if (test_bit(MAX44000_SCAN_INDEX_PRX, indio_dev->active_scan_mask)) {
ret = regmap_read(data->regmap, MAX44000_REG_PRX_DATA, &regval);
if (ret < 0)
goto out_unlock;
- buf[index] = regval;
+ data->scan.channels[index] = regval;
}
mutex_unlock(&data->lock);
- iio_push_to_buffers_with_timestamp(indio_dev, buf,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
iio_get_time_ns(indio_dev));
iio_trigger_notify_done(indio_dev->trig);
return IRQ_HANDLED;