patch "iio: imu: st_lsm6dsx: fix build when CONFIG_IIO_TRIGGERED_BUFFER=m" added to char-misc-linus

This is a note to let you know that I've just added the patch titled

iio: imu: st_lsm6dsx: fix build when CONFIG_IIO_TRIGGERED_BUFFER=m

to my char-misc git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
in the char-misc-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From c9c1d6d82091f05b4dabf2c624bdaeba19bdf893 Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <[email protected]>
Date: Tue, 3 Jan 2023 15:03:48 +0200
Subject: iio: imu: st_lsm6dsx: fix build when CONFIG_IIO_TRIGGERED_BUFFER=m

The following kernel linkage error:

st_lsm6dsx_core.o: in function `st_lsm6dsx_sw_buffers_setup':
st_lsm6dsx_core.c:2578: undefined reference to `devm_iio_triggered_buffer_setup_ext'

is caused by the fact that the object owning devm_iio_triggered_buffer_setup_ext() (drivers/iio/buffer/industrialio-triggered-buffer.o) is allowed to be built as module when its user (drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c) is built-in.

The st_lsm6dsx driver already has a "select IIO_BUFFER", so add another select for IIO_TRIGGERED_BUFFER, to make that option follow what is set for the st_lsm6dsx driver. This is similar to what other iio drivers do.

---
 drivers/iio/imu/st_lsm6dsx/Kconfig | 1 +
 1 file changed, 1 insertion(+)

index f6660847fb58..8c16cdacf2f2 100644
@@ -4,6 +4,7 @@ config IIO_ST_LSM6DSX
 	tristate "ST_LSM6DSx driver for STM 6-axis IMU MEMS sensors"
 	depends on (I2C || SPI || I3C)
 	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	select IIO_KFIFO_BUF
 	select IIO_ST_LSM6DSX_I2C if (I2C)
 	select IIO_ST_LSM6DSX_SPI if (SPI_MASTER)

2.39.1