This is a note to let you know that I've just added the patch titled iio: dummy: Fix build error when CONFIG_IIO_TRIGGERED_BUFFER is not set to the 5.13-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: iio-dummy-fix-build-error-when-config_iio_triggered_.patch and it can be found in the queue-5.13 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit c1a207835761ea858c8b31eb08c32a171c94384b Author: Wei Yongjun <weiyongjun1@xxxxxxxxxx> Date: Mon May 24 14:05:36 2021 +0000 iio: dummy: Fix build error when CONFIG_IIO_TRIGGERED_BUFFER is not set [ Upstream commit 94588c1bf1c8701392e1dc105c670d0d2fc7676a ] Gcc reports build error when CONFIG_IIO_TRIGGERED_BUFFER is not set: riscv64-linux-gnu-ld: drivers/iio/dummy/iio_simple_dummy_buffer.o: in function `iio_simple_dummy_configure_buffer': iio_simple_dummy_buffer.c:(.text+0x2b0): undefined reference to `iio_triggered_buffer_setup_ext' riscv64-linux-gnu-ld: drivers/iio/dummy/iio_simple_dummy_buffer.o: in function `.L0 ': iio_simple_dummy_buffer.c:(.text+0x2fc): undefined reference to `iio_triggered_buffer_cleanup' Fix it by select IIO_TRIGGERED_BUFFER for config IIO_SIMPLE_DUMMY_BUFFER. Fixes: 738f6ba11800 ("iio: dummy: iio_simple_dummy_buffer: use triggered buffer core calls") Reported-by: Hulk Robot <hulkci@xxxxxxxxxx> Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/iio/dummy/Kconfig b/drivers/iio/dummy/Kconfig index 5c5c2f8c55f3..1f46cb9e51b7 100644 --- a/drivers/iio/dummy/Kconfig +++ b/drivers/iio/dummy/Kconfig @@ -34,6 +34,7 @@ config IIO_SIMPLE_DUMMY_BUFFER select IIO_BUFFER select IIO_TRIGGER select IIO_KFIFO_BUF + select IIO_TRIGGERED_BUFFER help Add buffered data capture to the simple dummy driver.