Clean up the existing export namespace code along the same lines of
commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo)
to __section("foo")") and for the same reason, it is not desired for the
namespace argument to be a macro expansion itself.

Scripted using

  git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file;
  do
    awk -i inplace '
      /^#define EXPORT_SYMBOL_NS/ {
        gsub(/__stringify\(ns\)/, "ns");
        print;
        next;
      }
      /^#define MODULE_IMPORT_NS/ {
        gsub(/__stringify\(ns\)/, "ns");
        print;
        next;
      }
      /MODULE_IMPORT_NS/ {
        $0 = gensub(/MODULE_IMPORT_NS\(([^)]*)\)/, "MODULE_IMPORT_NS(\"\\1\")", "g");
      }
      /EXPORT_SYMBOL_NS/ {
        if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+),/) {
  	if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/ &&
  	    $0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(\)/ &&
  	    $0 !~ /^my/) {
  	  getline line;
  	  gsub(/[[:space:]]*\\$/, "");
  	  gsub(/[[:space:]]/, "", line);
  	  $0 = $0 " " line;
  	}

  	$0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/,
  		    "\\1(\\2, \"\\3\")", "g");
        }
      }
      { print }' $file;
  done

Requested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc
Acked-by: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Jonathan writes:

IIO: 2nd set of new device support, features and cleanup for 6.13

Alongside new drivers and device support there are several large
cleanups going on across the IIO tree and we see part of some of those
in this pull request.

Merged char-misc-next at point of 6.12-rc6 merge to avoid a
conflict with a fix for the ad7380 merged earlier this cycle.
Note that I previously messed this merge up and had to reconstruct
it this morning so a coherent pull request was possible. The new
stuff is all the same as has been in linux-next for some time with
the exception of the kernel-doc related __private ordering fix
that went in yesterday.

New device support
==================

adi,ad7380
- Support for adaq4370-4 and adaq4370 quad channel ADCs.
adi,ad7606
- Various cleanups preceeding support of AD7607, AD7608 and AD7609 ADCs.
adi,ad7779
- New driver supproting AD7770, AD7771 and AD7779 ADCs.
allegro,als31300
- New driver for this 3D Linear Hall Effect sensor.
bosch,bmi270
- Add support BMI260 which is similar but requires a different firmware image.
bosch,smi240
- New driver for this IMU.
ti,opt3001
- Add support opt3002 light sensor which has a wider spectral range than
  the opt3001.
vishay,veml3235
- New driver for this ambient light sensor.

Features
========

hid-sensors
- Add support Human Proximity Range and Attention detection (requiring
  a new classification style channel type)
adi,ad3552r
- Add backend support and related platform driver to support use
  with an FPGA IP to allow QSPI + DDR bus operation and much higher
  data aquisition rates.  (various rework preceeded this feature)
adi,ad7606
- Various cleanup prior to enabling use with an IIO Backend and PWM trigger
  enabling much higher speed data capture.
bosch,bme680
- Support control of preheat current
- Support triggered buffer capture
- Add SCALE and RAW channels (needed to enable the buffered capture).
bosch,bmp280
- Enable sleeping to save power.
- Add interrupt support for bmp3xx and bmp5xx devices. Also update bmp085
  to new approach.
- Enable data ready trigger.
bosch,bmi270
- Add triggered buffer support
- Add scale and sampling frequency control.
vishay,veml6070
- Support integration time via DT binding for an external resistor value.

Cleanup and minor fixes
=======================

core
- Fix a longstanding issue with event codes for differential channels.
  Note that not all drivers are yet fixed, but macros have been added
  to avoid potential repeats of this in future.
- Tidy up handling in iio_read_acpi_mount matrix.
- Mark iio_dev::priv with __private. Later move the marking before the
  field name to avoid a kernel-doc issue.
treewide
- Drop some pointless default n entries in Kconfig.
- Add an iio_get_acpi_device_name_and_data() handler to replace some
  commonly repeated code.
- simplify use of 'state' in write_event_config() callback  as it is
  effectively a boolean. Once done make it a boolean (lots of drivers
  were updated to enable this)
- some more use of devm_regulator_get_enable_read_voltage( to replace
  open coded versions.  Where this enables it convert all of remove
  handling to devm based and drop the remove callback.
- check returns from devm_mutex_init()
accel drivers
- Use aligned_s64 instead of s64 __aligned(8)
adi,ad5791
- Add some missing GPIOs and power supplies that presumably were always
  hard wired on previous boards.
- Refactor to use chip_info in device id tables.
- Convert probe entirely to devm based simplify code and allowing remove()
  callback to be dropped.
adi,ad7192
- Check return from spi_get_device_match_data()
adi,ad74413r
- Don't keep an unnecessary copy of the gpio after probe.
- Use devm_regulator_get_enable_read_voltage() instead of open coding.
- Apply cleanup.h approach to reduce complexity.
adi,dac8460
- Fix a wrong compaitble ID due to a stray space.
- Add an spi_device_id table.
bosch,bmc150
- Drop some likely false ACPI IDs.
- Drop left over unused ACPI specific code.
bosch,bme680
- Add mising regmap.h include.
- Reduce excessive sleep on startup.
- Drop some cammelcase usage.
- Use fsleep
- Generalize read functions to allow for reuse.
- Use s16 variable to avoid some incorrect casting
bosch,bmg150
- Drop some likely false ACPI IDs.
bosch,bmi270
- Drop unused FREQUENCY and SCALE attributes that always returned an
  error (they wil be back impelmented correctly).
- Factor out the chip specific data into a structure to enable simple
  support for additional devices.
isil,isl29018
- Drop ACPI_PTR() and CONFIG_ACPI guards as not worth the trouble for very
  minor saving.
invensense,mpu6050
- Use much simpler test for ACPI firmware.
kionix,kxcjk-1013
- Drop unnecessary ACPI entry in the i2c_device_id table.
- Drop support KX022-1020 to fix a bug that was introduced with that change.
  Hopefully a fixed version will replace it soon.
- Drop CONFIG guards for PM in favor of pm_ptr() and the compiler removing
  dead code.
- Switch from enum to chip_info structure and add ODR times to that structure.
- Deduplicate one of those ODR structures
- Drop ACPI_PTR() and move ID table out of config guards.
- Minor additional cleanup.
liteon,ltr401
- Drop some likely false ACPI Ids and add LTER0303 which is know to be in use.
microchip,pac1934
- Use much simpler test for ACPI firmware.
vishay,veml6070
- Use unsigned int instead of just unsigned.
- Use FIELD_PREP to make setting of field value explicit.

Various other minor fixes to documentation

* tag 'iio-for-6.13b' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (153 commits)
  iio: Move __private marking before struct element priv in struct iio_dev
  docs: iio: ad7380: add adaq4370-4 and adaq4380-4
  iio: adc: ad7380: add support for adaq4370-4 and adaq4380-4
  iio: adc: ad7380: use local dev variable to shorten long lines
  iio: adc: ad7380: fix oversampling formula
  dt-bindings: iio: adc: ad7380: add adaq4370-4 and adaq4380-4 compatible parts
  iio: chemical: bme680: Add support for preheat current
  iio: chemical: bme680: Add triggered buffer support
  iio: chemical: bme680: Add SCALE and RAW channels
  iio: chemical: bme680: refactorize set_mode() mode
  iio: events: make IIO_EVENT_CODE macro private
  iio: accel: mma9553: use specialized event code macros
  iio: dummy: use specialized event code macros
  iio: adc: ad7280a: use IIO_DIFF_EVENT_CODE macro helper
  iio: events.h: add event identifier macros for differential channel
  iio: magnetometer: add Allegro MicroSystems ALS31300 3-D Linear Hall Effect driver
  dt-bindings: iio: magnetometer: document the Allegro MicroSystems ALS31300 3-D Linear Hall Effect Sensor
  dt-bindings: vendor-prefixes: Add Allegro MicroSystems, Inc
  iio: light: apds9960: remove useless return
  iio: light: apds9960: convert als_int and pxs_int to bool
  ...

Jonathan writes:

IIO: 3rd set of fixes for the 6.12 cycle

Usual mixed bag of new issues from this cycle and ancient bugs
recently noticed.

core
- Fix wrong fwnode handle if __fwnode_iio_channel_get_by_name()
  looks at parents of the provider node.
core,backend
- Fix a wrong pointer error check.
gts library
- Fix plausible corner case where the value returned was not set.
- Avoid near infinite loop if the size of the table is 0.
  (neither are an issue for current drivers).
adi,ad4000
- Fix reading of unsigned channels that were returning garbage.
adi,ad7780
- Prevent a division by zero.
adi,ad7923
- Fix buffer overflows in arrays that were not resized when devices
  with more channels were added to the driver.
adi,adxl380
- Check only for negative error codes rather than including the
  positive channel read values in an error check.
invense,common
- Fix an issue where changing the sampling rate to another value and
  back again whilst the FIFO was off would not update things correctly.
kionix,kx022a
- Fix failure to sign extend value read from device.

* tag 'iio-fixes-for-6.12c' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  iio: Fix fwnode_handle in __fwnode_iio_channel_get_by_name()
  iio: accel: adxl380: fix raw sample read
  iio: accel: kx022a: Fix raw read format
  iio: gts: fix infinite loop for gain_to_scaletables()
  iio: gts: Fix uninitialized symbol 'ret'
  iio: adc: ad4000: fix reading unsigned data
  ad7780: fix division by zero in ad7780_write_raw()
  iio: adc: ad7923: Fix buffer overflow for tx_buf and ring_xfer
  iio: backend: fix wrong pointer passed to IS_ERR()
  iio: invensense: fix multiple odr switch when FIFO is off

Simplify the code by using IIO_UNMOD_EVENT_CODE and IIO_MOD_EVENT_CODE
instead of IIO_EVENT_CODE.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20241101-iio-fix-event-macro-use-v1-2-0000c5d09f6d@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Since the write_event_config callback now uses a bool for the state
parameter, update the signatures of the functions it calls accordingly.

Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Link: https://patch.msgid.link/20241031-iio-fix-write-event-config-signature-v2-9-2bcacbb517a2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Since the write_event_config callback now uses a bool for the state
parameter, update the signature of the function it calls accordingly,
and use a bool array for event_enabled.

Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Link: https://patch.msgid.link/20241031-iio-fix-write-event-config-signature-v2-8-2bcacbb517a2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

write_event_config callback use an int for state, but it is actually a
boolean. iio_ev_state_store is actually using kstrtobool to check user
input, then gives the converted boolean value to write_event_config.

Fix signature and update all iio drivers to use the new signature.

This patch has been partially written using coccinelle with the
following script:

$ cat iio-bool.cocci
// Options: --all-includes

virtual patch

@c1@
identifier iioinfo;
identifier wecfunc;
@@
 static const struct iio_info iioinfo = {
        ...,
        .write_event_config =
(
 wecfunc
|
 &wecfunc
),
        ...,
 };

@@
identifier c1.wecfunc;
identifier indio_dev, chan, type, dir, state;
@@
 int wecfunc(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir,
-int
+bool
 state) {
  ...
 }

make coccicheck MODE=patch COCCI=iio-bool.cocci M=drivers/iio

Unfortunately, this script didn't match all files:
* all write_event_config callbacks using iio_device_claim_direct_scoped
  were not detected and not patched.
* all files that do not assign and declare the write_event_config
  callback in the same file.

iio.h was also manually updated.

The patch was build tested using allmodconfig config.

cc: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Link: https://patch.msgid.link/20241031-iio-fix-write-event-config-signature-v2-7-2bcacbb517a2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

The content of kxcj91008_odr_start_up_times and kxcjk1013_odr_start_up_times
is identical, deduplicate it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20241101081203.3360421-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

The adxl380_read_chn function returns either a negative value in case an
error occurs or the actual sample.

Check only for negative values after a channel is read.

Fixes: df36de13677a ("iio: accel: add ADXL380 driver")
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://patch.msgid.link/20241101095202.20121-1-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

IIO core (ACPI part) provides a generic helper that may be used in
the driver. Replace custom implementation of iio_get_acpi_device_name().

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20241024191200.229894-19-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>