stacktrace.h

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/*
 * DCL stacktrace.h -- stack_trace_save() records nothing.
 *
 * drm_mm.c/drm_modeset_lock.c ask for call stacks when debug printing;
 * returning 0 entries makes their dump loops print an empty stack, which is
 * the honest answer without CONFIG_STACKTRACE.
 */
#ifndef _LINUX_STACKTRACE_H
#define _LINUX_STACKTRACE_H
 
#include <linux/types.h>
 
struct stack_trace {
    unsigned int nr_entries;
    unsigned int max_entries;
    unsigned long *entries;
    int skip;
};
 
static inline unsigned int stack_trace_save(unsigned long *entries,
                        unsigned int size,
                        unsigned int skip)
{
    (void)entries; (void)size; (void)skip;
    return 0;
}
 
static inline int stack_trace_snprint(char *buf, size_t size,
                      const unsigned long *entries,
                      unsigned int nr_entries,
                      unsigned int skip)
{
    (void)buf; (void)size; (void)entries; (void)nr_entries; (void)skip;
    return 0;
}
 
#endif /* _LINUX_STACKTRACE_H */