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Date: Mon, 14 Jun 2021 22:58:46 +0200
From: Alexandre Belloni <alexandre.belloni@...tlin.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>,
Ye Xiang <xiang.ye@...el.com>, linux-input@...r.kernel.org,
linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-rtc@...r.kernel.org, Jiri Kosina <jikos@...nel.org>,
Jonathan Cameron <jic23@...nel.org>,
Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
Lars-Peter Clausen <lars@...afoo.de>,
Alessandro Zummo <a.zummo@...ertech.it>
Subject: Re: [PATCH v2 1/1] iio: hid-sensors: lighten exported symbols by
moving to IIO_HID namespace
On 14/06/2021 19:24:47+0300, Andy Shevchenko wrote:
> A namespace for exported symbols makes clear who is a provider
> and who is a consumer of the certain resources. Besides that,
> it doesn't pollute the common namespace.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
> ---
> v2: updated RTC HID sensor driver as well (Jonathan)
> drivers/iio/accel/hid-sensor-accel-3d.c | 1 +
> .../hid-sensors/hid-sensor-attributes.c | 26 +++++++++----------
> .../common/hid-sensors/hid-sensor-trigger.c | 9 ++++---
> drivers/iio/gyro/hid-sensor-gyro-3d.c | 1 +
> drivers/iio/humidity/hid-sensor-humidity.c | 1 +
> drivers/iio/light/hid-sensor-als.c | 1 +
> drivers/iio/light/hid-sensor-prox.c | 1 +
> drivers/iio/magnetometer/hid-sensor-magn-3d.c | 1 +
> drivers/iio/orientation/hid-sensor-incl-3d.c | 1 +
> drivers/iio/orientation/hid-sensor-rotation.c | 1 +
> .../position/hid-sensor-custom-intel-hinge.c | 1 +
> drivers/iio/pressure/hid-sensor-press.c | 1 +
> .../iio/temperature/hid-sensor-temperature.c | 1 +
> drivers/rtc/rtc-hid-sensor-time.c | 1 +
> 14 files changed, 30 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
> index 27f47e1c251e..bcafca7b2eac 100644
> --- a/drivers/iio/accel/hid-sensor-accel-3d.c
> +++ b/drivers/iio/accel/hid-sensor-accel-3d.c
> @@ -465,3 +465,4 @@ module_platform_driver(hid_accel_3d_platform_driver);
> MODULE_DESCRIPTION("HID Sensor Accel 3D");
> MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@...el.com>");
> MODULE_LICENSE("GPL");
> +MODULE_IMPORT_NS(IIO_HID);
> diff --git a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
> index cb52b4fd6bf7..a81a0b206af6 100644
> --- a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
> +++ b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
> @@ -176,7 +176,7 @@ s32 hid_sensor_read_poll_value(struct hid_sensor_common *st)
>
> return value;
> }
> -EXPORT_SYMBOL(hid_sensor_read_poll_value);
> +EXPORT_SYMBOL_NS(hid_sensor_read_poll_value, IIO_HID_ATTRIBUTES);
>
> int hid_sensor_read_samp_freq_value(struct hid_sensor_common *st,
> int *val1, int *val2)
> @@ -203,7 +203,7 @@ int hid_sensor_read_samp_freq_value(struct hid_sensor_common *st,
>
> return IIO_VAL_INT_PLUS_MICRO;
> }
> -EXPORT_SYMBOL(hid_sensor_read_samp_freq_value);
> +EXPORT_SYMBOL_NS(hid_sensor_read_samp_freq_value, IIO_HID);
>
> int hid_sensor_write_samp_freq_value(struct hid_sensor_common *st,
> int val1, int val2)
> @@ -238,7 +238,7 @@ int hid_sensor_write_samp_freq_value(struct hid_sensor_common *st,
>
> return 0;
> }
> -EXPORT_SYMBOL(hid_sensor_write_samp_freq_value);
> +EXPORT_SYMBOL_NS(hid_sensor_write_samp_freq_value, IIO_HID);
>
> int hid_sensor_read_raw_hyst_value(struct hid_sensor_common *st,
> int *val1, int *val2)
> @@ -261,7 +261,7 @@ int hid_sensor_read_raw_hyst_value(struct hid_sensor_common *st,
>
> return IIO_VAL_INT_PLUS_MICRO;
> }
> -EXPORT_SYMBOL(hid_sensor_read_raw_hyst_value);
> +EXPORT_SYMBOL_NS(hid_sensor_read_raw_hyst_value, IIO_HID);
>
> int hid_sensor_read_raw_hyst_rel_value(struct hid_sensor_common *st, int *val1,
> int *val2)
> @@ -283,7 +283,7 @@ int hid_sensor_read_raw_hyst_rel_value(struct hid_sensor_common *st, int *val1,
>
> return IIO_VAL_INT_PLUS_MICRO;
> }
> -EXPORT_SYMBOL(hid_sensor_read_raw_hyst_rel_value);
> +EXPORT_SYMBOL_NS(hid_sensor_read_raw_hyst_rel_value, IIO_HID);
>
>
> int hid_sensor_write_raw_hyst_value(struct hid_sensor_common *st,
> @@ -315,7 +315,7 @@ int hid_sensor_write_raw_hyst_value(struct hid_sensor_common *st,
>
> return 0;
> }
> -EXPORT_SYMBOL(hid_sensor_write_raw_hyst_value);
> +EXPORT_SYMBOL_NS(hid_sensor_write_raw_hyst_value, IIO_HID);
>
> int hid_sensor_write_raw_hyst_rel_value(struct hid_sensor_common *st,
> int val1, int val2)
> @@ -346,7 +346,7 @@ int hid_sensor_write_raw_hyst_rel_value(struct hid_sensor_common *st,
>
> return 0;
> }
> -EXPORT_SYMBOL(hid_sensor_write_raw_hyst_rel_value);
> +EXPORT_SYMBOL_NS(hid_sensor_write_raw_hyst_rel_value, IIO_HID);
>
> /*
> * This fuction applies the unit exponent to the scale.
> @@ -430,14 +430,14 @@ int hid_sensor_format_scale(u32 usage_id,
>
> return IIO_VAL_INT_PLUS_NANO;
> }
> -EXPORT_SYMBOL(hid_sensor_format_scale);
> +EXPORT_SYMBOL_NS(hid_sensor_format_scale, IIO_HID);
>
> int64_t hid_sensor_convert_timestamp(struct hid_sensor_common *st,
> int64_t raw_value)
> {
> return st->timestamp_ns_scale * raw_value;
> }
> -EXPORT_SYMBOL(hid_sensor_convert_timestamp);
> +EXPORT_SYMBOL_NS(hid_sensor_convert_timestamp, IIO_HID);
>
> static
> int hid_sensor_get_reporting_interval(struct hid_sensor_hub_device *hsdev,
> @@ -484,7 +484,7 @@ int hid_sensor_get_report_latency(struct hid_sensor_common *st)
>
> return value;
> }
> -EXPORT_SYMBOL(hid_sensor_get_report_latency);
> +EXPORT_SYMBOL_NS(hid_sensor_get_report_latency, IIO_HID_ATTRIBUTES);
>
> int hid_sensor_set_report_latency(struct hid_sensor_common *st, int latency_ms)
> {
> @@ -492,13 +492,13 @@ int hid_sensor_set_report_latency(struct hid_sensor_common *st, int latency_ms)
> st->report_latency.index,
> sizeof(latency_ms), &latency_ms);
> }
> -EXPORT_SYMBOL(hid_sensor_set_report_latency);
> +EXPORT_SYMBOL_NS(hid_sensor_set_report_latency, IIO_HID_ATTRIBUTES);
>
> bool hid_sensor_batch_mode_supported(struct hid_sensor_common *st)
> {
> return st->report_latency.index > 0 && st->report_latency.report_id > 0;
> }
> -EXPORT_SYMBOL(hid_sensor_batch_mode_supported);
> +EXPORT_SYMBOL_NS(hid_sensor_batch_mode_supported, IIO_HID_ATTRIBUTES);
>
> int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev,
> u32 usage_id,
> @@ -590,7 +590,7 @@ int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev,
>
> return 0;
> }
> -EXPORT_SYMBOL(hid_sensor_parse_common_attributes);
> +EXPORT_SYMBOL_NS(hid_sensor_parse_common_attributes, IIO_HID);
>
> MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@...el.com>");
> MODULE_DESCRIPTION("HID Sensor common attribute processing");
> diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
> index c06537e106e9..60e85d675387 100644
> --- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
> +++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
> @@ -150,7 +150,7 @@ static int _hid_sensor_power_state(struct hid_sensor_common *st, bool state)
>
> return 0;
> }
> -EXPORT_SYMBOL(hid_sensor_power_state);
> +EXPORT_SYMBOL_NS(hid_sensor_power_state, IIO_HID);
>
> int hid_sensor_power_state(struct hid_sensor_common *st, bool state)
> {
> @@ -225,7 +225,7 @@ void hid_sensor_remove_trigger(struct iio_dev *indio_dev,
> iio_trigger_free(attrb->trigger);
> iio_triggered_buffer_cleanup(indio_dev);
> }
> -EXPORT_SYMBOL(hid_sensor_remove_trigger);
> +EXPORT_SYMBOL_NS(hid_sensor_remove_trigger, IIO_HID);
>
> static const struct iio_trigger_ops hid_sensor_trigger_ops = {
> .set_trigger_state = &hid_sensor_data_rdy_trigger_set_state,
> @@ -291,7 +291,7 @@ int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name,
> iio_triggered_buffer_cleanup(indio_dev);
> return ret;
> }
> -EXPORT_SYMBOL(hid_sensor_setup_trigger);
> +EXPORT_SYMBOL_NS(hid_sensor_setup_trigger, IIO_HID);
>
> static int __maybe_unused hid_sensor_suspend(struct device *dev)
> {
> @@ -321,8 +321,9 @@ const struct dev_pm_ops hid_sensor_pm_ops = {
> SET_RUNTIME_PM_OPS(hid_sensor_suspend,
> hid_sensor_runtime_resume, NULL)
> };
> -EXPORT_SYMBOL(hid_sensor_pm_ops);
> +EXPORT_SYMBOL_NS(hid_sensor_pm_ops, IIO_HID);
>
> MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@...el.com>");
> MODULE_DESCRIPTION("HID Sensor trigger processing");
> MODULE_LICENSE("GPL");
> +MODULE_IMPORT_NS(IIO_HID_ATTRIBUTES);
> diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c
> index dad26ee4fd1f..2ed2a8effb86 100644
> --- a/drivers/iio/gyro/hid-sensor-gyro-3d.c
> +++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c
> @@ -400,3 +400,4 @@ module_platform_driver(hid_gyro_3d_platform_driver);
> MODULE_DESCRIPTION("HID Sensor Gyroscope 3D");
> MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@...el.com>");
> MODULE_LICENSE("GPL");
> +MODULE_IMPORT_NS(IIO_HID);
> diff --git a/drivers/iio/humidity/hid-sensor-humidity.c b/drivers/iio/humidity/hid-sensor-humidity.c
> index 74383abc0d44..8a9091d71d2a 100644
> --- a/drivers/iio/humidity/hid-sensor-humidity.c
> +++ b/drivers/iio/humidity/hid-sensor-humidity.c
> @@ -295,3 +295,4 @@ module_platform_driver(hid_humidity_platform_driver);
> MODULE_DESCRIPTION("HID Environmental humidity sensor");
> MODULE_AUTHOR("Song Hongyan <hongyan.song@...el.com>");
> MODULE_LICENSE("GPL v2");
> +MODULE_IMPORT_NS(IIO_HID);
> diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
> index 85c8a05b73cb..a63d577493e2 100644
> --- a/drivers/iio/light/hid-sensor-als.c
> +++ b/drivers/iio/light/hid-sensor-als.c
> @@ -392,3 +392,4 @@ module_platform_driver(hid_als_platform_driver);
> MODULE_DESCRIPTION("HID Sensor ALS");
> MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@...el.com>");
> MODULE_LICENSE("GPL");
> +MODULE_IMPORT_NS(IIO_HID);
> diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
> index 17d167c3d595..99de268563d6 100644
> --- a/drivers/iio/light/hid-sensor-prox.c
> +++ b/drivers/iio/light/hid-sensor-prox.c
> @@ -350,3 +350,4 @@ module_platform_driver(hid_prox_platform_driver);
> MODULE_DESCRIPTION("HID Sensor Proximity");
> MODULE_AUTHOR("Archana Patni <archana.patni@...el.com>");
> MODULE_LICENSE("GPL");
> +MODULE_IMPORT_NS(IIO_HID);
> diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
> index b78691523dd4..a66f9e933628 100644
> --- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c
> +++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
> @@ -587,3 +587,4 @@ module_platform_driver(hid_magn_3d_platform_driver);
> MODULE_DESCRIPTION("HID Sensor Magnetometer 3D");
> MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@...el.com>");
> MODULE_LICENSE("GPL");
> +MODULE_IMPORT_NS(IIO_HID);
> diff --git a/drivers/iio/orientation/hid-sensor-incl-3d.c b/drivers/iio/orientation/hid-sensor-incl-3d.c
> index 7af48d336285..cc905b0fa835 100644
> --- a/drivers/iio/orientation/hid-sensor-incl-3d.c
> +++ b/drivers/iio/orientation/hid-sensor-incl-3d.c
> @@ -425,3 +425,4 @@ module_platform_driver(hid_incl_3d_platform_driver);
> MODULE_DESCRIPTION("HID Sensor Inclinometer 3D");
> MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>");
> MODULE_LICENSE("GPL");
> +MODULE_IMPORT_NS(IIO_HID);
> diff --git a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c
> index cf7f57a47681..6570bfd22035 100644
> --- a/drivers/iio/orientation/hid-sensor-rotation.c
> +++ b/drivers/iio/orientation/hid-sensor-rotation.c
> @@ -373,3 +373,4 @@ module_platform_driver(hid_dev_rot_platform_driver);
> MODULE_DESCRIPTION("HID Sensor Device Rotation");
> MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>");
> MODULE_LICENSE("GPL");
> +MODULE_IMPORT_NS(IIO_HID);
> diff --git a/drivers/iio/position/hid-sensor-custom-intel-hinge.c b/drivers/iio/position/hid-sensor-custom-intel-hinge.c
> index 738b5f4626ce..4478ad9387c5 100644
> --- a/drivers/iio/position/hid-sensor-custom-intel-hinge.c
> +++ b/drivers/iio/position/hid-sensor-custom-intel-hinge.c
> @@ -376,3 +376,4 @@ module_platform_driver(hid_hinge_platform_driver);
> MODULE_DESCRIPTION("HID Sensor INTEL Hinge");
> MODULE_AUTHOR("Ye Xiang <xiang.ye@...el.com>");
> MODULE_LICENSE("GPL");
> +MODULE_IMPORT_NS(IIO_HID);
> diff --git a/drivers/iio/pressure/hid-sensor-press.c b/drivers/iio/pressure/hid-sensor-press.c
> index c416d261e3e3..79b3399e4095 100644
> --- a/drivers/iio/pressure/hid-sensor-press.c
> +++ b/drivers/iio/pressure/hid-sensor-press.c
> @@ -357,3 +357,4 @@ module_platform_driver(hid_press_platform_driver);
> MODULE_DESCRIPTION("HID Sensor Pressure");
> MODULE_AUTHOR("Archana Patni <archana.patni@...el.com>");
> MODULE_LICENSE("GPL");
> +MODULE_IMPORT_NS(IIO_HID);
> diff --git a/drivers/iio/temperature/hid-sensor-temperature.c b/drivers/iio/temperature/hid-sensor-temperature.c
> index dc534ed784c3..21aa952b9f6d 100644
> --- a/drivers/iio/temperature/hid-sensor-temperature.c
> +++ b/drivers/iio/temperature/hid-sensor-temperature.c
> @@ -291,3 +291,4 @@ module_platform_driver(hid_temperature_platform_driver);
> MODULE_DESCRIPTION("HID Environmental temperature sensor");
> MODULE_AUTHOR("Song Hongyan <hongyan.song@...el.com>");
> MODULE_LICENSE("GPL v2");
> +MODULE_IMPORT_NS(IIO_HID);
> diff --git a/drivers/rtc/rtc-hid-sensor-time.c b/drivers/rtc/rtc-hid-sensor-time.c
> index 47cd12db2356..16fdefafec5d 100644
> --- a/drivers/rtc/rtc-hid-sensor-time.c
> +++ b/drivers/rtc/rtc-hid-sensor-time.c
> @@ -328,3 +328,4 @@ module_platform_driver(hid_time_platform_driver);
> MODULE_DESCRIPTION("HID Sensor Time");
> MODULE_AUTHOR("Alexander Holler <holler@...oftware.de>");
> MODULE_LICENSE("GPL");
> +MODULE_IMPORT_NS(IIO_HID);
> --
> 2.30.2
>
--
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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