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Commit 5f61ff86 authored by Heiner Kallweit's avatar Heiner Kallweit Committed by Mauro Carvalho Chehab
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[media] media: rc: reduce size of struct ir_raw_event 



struct ir_raw_event currently has a size of 12 bytes on most (all?)
architectures. This can be reduced to 8 bytes whilst maintaining
full backwards compatibility.
This saves 2KB in size of struct ir_raw_event_ctrl (as element
kfifo is reduced by 512 * 4 bytes) and it allows to copy the
full struct ir_raw_event with a single 64 bit operation.

Successfully tested with the Nuvoton driver and successfully
compile-tested with the ene_ir driver (as it uses the carrier /
duty_cycle elements).

Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 18693843

include/media/rc-core.h

+4 −14
Original line number Diff line number Diff line
@@ -215,12 +215,9 @@ enum raw_event_type { 
struct ir_raw_event {

	union {

		u32             duration;



		struct {

		u32             carrier;

			u8      duty_cycle;

		};

	};

	u8                      duty_cycle;



	unsigned                pulse:1;

	unsigned                reset:1;
@@ -228,13 +225,7 @@ struct ir_raw_event { 
	unsigned                carrier_report:1;

};



#define DEFINE_IR_RAW_EVENT(event) \

	struct ir_raw_event event = { \

		{ .duration = 0 } , \

		.pulse = 0, \

		.reset = 0, \

		.timeout = 0, \

		.carrier_report = 0 }

#define DEFINE_IR_RAW_EVENT(event) struct ir_raw_event event = {}



static inline void init_ir_raw_event(struct ir_raw_event *ev)

{
@@ -256,8 +247,7 @@ void ir_raw_event_set_idle(struct rc_dev *dev, bool idle); 


static inline void ir_raw_event_reset(struct rc_dev *dev)

{

	DEFINE_IR_RAW_EVENT(ev);

	ev.reset = true;

	struct ir_raw_event ev = { .reset = true };



	ir_raw_event_store(dev, &ev);

	ir_raw_event_handle(dev);