linux-iio.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH] iio: st_magn: always define ST_MAGN_TRIGGER_SET_STATE
@ 2016-03-29 20:27 Arnd Bergmann
  2016-03-30  6:33 ` Denis Ciocca
  0 siblings, 1 reply; 3+ messages in thread
From: Arnd Bergmann @ 2016-03-29 20:27 UTC (permalink / raw)
  To: Jonathan Cameron
  Cc: Arnd Bergmann, Hartmut Knaack, Lars-Peter Clausen, Peter Meerwald,
	Giuseppe Barba, Denis Ciocca, Linus Walleij, linux-iio,
	linux-kernel

When CONFIG_IIO_TRIGGER is enabled but CONFIG_IIO_BUFFER is
not, we get a build error in the st_magn driver:

drivers/iio/magnetometer/st_magn_core.c:573:23: error: 'ST_MAGN_TRIGGER_SET_STATE' undeclared here (not in a function)
  .set_trigger_state = ST_MAGN_TRIGGER_SET_STATE,
                       ^~~~~~~~~~~~~~~~~~~~~~~~~

Apparently, this ST_MAGN_TRIGGER_SET_STATE macro was meant to
be set to NULL when the definition is not available because
st_magn_buffer.c is not compiled, but the alternative definition
was not included in the original patch. This adds it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 74f5683f35fe ("iio: st_magn: Add irq trigger handling")
---
 drivers/iio/magnetometer/st_magn.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/magnetometer/st_magn.h b/drivers/iio/magnetometer/st_magn.h
index 06a4d9c35581..9daca4681922 100644
--- a/drivers/iio/magnetometer/st_magn.h
+++ b/drivers/iio/magnetometer/st_magn.h
@@ -44,6 +44,7 @@ static inline int st_magn_allocate_ring(struct iio_dev *indio_dev)
 static inline void st_magn_deallocate_ring(struct iio_dev *indio_dev)
 {
 }
+#define ST_MAGN_TRIGGER_SET_STATE NULL
 #endif /* CONFIG_IIO_BUFFER */
 
 #endif /* ST_MAGN_H */
-- 
2.7.0


^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2016-04-03  9:57 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-03-29 20:27 [PATCH] iio: st_magn: always define ST_MAGN_TRIGGER_SET_STATE Arnd Bergmann
2016-03-30  6:33 ` Denis Ciocca
2016-04-03  9:57   ` Jonathan Cameron

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).