/* *  linux/lib/kasprintf.c * *  Copyright (C) 1991, 1992  Linus Torvalds */ #include <stdarg.h>#include <linux/export.h>#include <linux/slab.h>#include <linux/types.h>#include <linux/string.h> /* Simplified asprintf. */char *kvasprintf(gfp_t gfp, const char *fmt, va_list ap){	unsigned int len;	char *p;	va_list aq; 	va_copy(aq, ap);	len = vsnprintf(NULL, 0, fmt, aq);	va_end(aq); 	p = kmalloc(len+1, gfp);	if (!p)		return NULL; 	vsnprintf(p, len+1, fmt, ap); 	return p;}EXPORT_SYMBOL(kvasprintf); char *kasprintf(gfp_t gfp, const char *fmt, ...){	va_list ap;	char *p; 	va_start(ap, fmt);	p = kvasprintf(gfp, fmt, ap);	va_end(ap); 	return p;}EXPORT_SYMBOL(kasprintf);