1 // SPDX-License-Identifier: GPL-2.0 2 #include "misc.h" 3 4 static unsigned long fs; 5 static inline void set_fs(unsigned long seg) 6 { 7 fs = seg << 4; /* shift it back */ 8 } 9 typedef unsigned long addr_t; 10 static inline char rdfs8(addr_t addr) 11 { 12 return *((char *)(fs + addr)); 13 } 14 #include "../cmdline.c" 15 unsigned long get_cmd_line_ptr(void) 16 { 17 unsigned long cmd_line_ptr = boot_params->hdr.cmd_line_ptr; 18 19 cmd_line_ptr |= (u64)boot_params->ext_cmd_line_ptr << 32; 20 21 return cmd_line_ptr; 22 } 23 int cmdline_find_option(const char *option, char *buffer, int bufsize) 24 { 25 return __cmdline_find_option(get_cmd_line_ptr(), option, buffer, bufsize); 26 } 27 int cmdline_find_option_bool(const char *option) 28 { 29 return __cmdline_find_option_bool(get_cmd_line_ptr(), option); 30 } 31