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v0.8.1
https://github.com/torvalds/linux
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Tip revision: c470abd4fde40ea6a0846a2beab642a578c0b8cd authored by Linus Torvalds on 19 February 2017, 22:34:00 UTC
Linux 4.10
Tip revision: c470abd
cmdline.c
#include "misc.h"

#if CONFIG_EARLY_PRINTK || CONFIG_RANDOMIZE_BASE

static unsigned long fs;
static inline void set_fs(unsigned long seg)
{
	fs = seg << 4;  /* shift it back */
}
typedef unsigned long addr_t;
static inline char rdfs8(addr_t addr)
{
	return *((char *)(fs + addr));
}
#include "../cmdline.c"
static unsigned long get_cmd_line_ptr(void)
{
	unsigned long cmd_line_ptr = boot_params->hdr.cmd_line_ptr;

	cmd_line_ptr |= (u64)boot_params->ext_cmd_line_ptr << 32;

	return cmd_line_ptr;
}
int cmdline_find_option(const char *option, char *buffer, int bufsize)
{
	return __cmdline_find_option(get_cmd_line_ptr(), option, buffer, bufsize);
}
int cmdline_find_option_bool(const char *option)
{
	return __cmdline_find_option_bool(get_cmd_line_ptr(), option);
}

#endif
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