linux/drivers/media/platform/s5p-mfc/s5p_mfc_debug.h
Marek Szyprowski 0a79ef333d [media] s5p-mfc: Use printk_ratelimited for reporting ioctl errors
Some applications don't check error codes from QBUF/DQBUF ioctls,
so don't spam kernel log with errors if they fall into endless loop
trying to queue next buffer after a failure.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-30 09:16:23 -02:00

55 lines
1.3 KiB
C

/*
* drivers/media/platform/s5p-mfc/s5p_mfc_debug.h
*
* Header file for Samsung MFC (Multi Function Codec - FIMV) driver
* This file contains debug macros
*
* Kamil Debski, Copyright (c) 2011 Samsung Electronics
* http://www.samsung.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef S5P_MFC_DEBUG_H_
#define S5P_MFC_DEBUG_H_
#define DEBUG
#ifdef DEBUG
extern int mfc_debug_level;
#define mfc_debug(level, fmt, args...) \
do { \
if (mfc_debug_level >= level) \
printk(KERN_DEBUG "%s:%d: " fmt, \
__func__, __LINE__, ##args); \
} while (0)
#else
#define mfc_debug(level, fmt, args...)
#endif
#define mfc_debug_enter() mfc_debug(5, "enter\n")
#define mfc_debug_leave() mfc_debug(5, "leave\n")
#define mfc_err(fmt, args...) \
do { \
printk(KERN_ERR "%s:%d: " fmt, \
__func__, __LINE__, ##args); \
} while (0)
#define mfc_err_limited(fmt, args...) \
do { \
printk_ratelimited(KERN_ERR "%s:%d: " fmt, \
__func__, __LINE__, ##args); \
} while (0)
#define mfc_info(fmt, args...) \
do { \
printk(KERN_INFO "%s:%d: " fmt, \
__func__, __LINE__, ##args); \
} while (0)
#endif /* S5P_MFC_DEBUG_H_ */