iio:triggers Protect functions in triggers.h from use when not compiled
Also include a couple of forward defs of struct iio_trigger and struct iio_trigger_ops to avoid doing this in each driver. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Denis Ciocca <denis.ciocca@st.com>
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@ -12,6 +12,7 @@
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#ifndef _IIO_TRIGGER_H_
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#define _IIO_TRIGGER_H_
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#ifdef CONFIG_IIO_TRIGGER
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struct iio_subirq {
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bool enabled;
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};
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@ -117,4 +118,8 @@ irqreturn_t iio_trigger_generic_data_rdy_poll(int irq, void *private);
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__printf(1, 2) struct iio_trigger *iio_trigger_alloc(const char *fmt, ...);
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void iio_trigger_free(struct iio_trigger *trig);
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#else
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struct iio_trigger;
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struct iio_trigger_ops;
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#endif
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#endif /* _IIO_TRIGGER_H_ */
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