linux-stable/arch/x86/boot/compressed/cmdline.c
Borislav Petkov ac09c5f43c x86/boot: Build the command line parsing code unconditionally
Just drop the three-item ifdeffery and build it in unconditionally.
Early cmdline parsing is needed more often than not.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: bhe@redhat.com
Cc: hpa@zytor.com
Cc: indou.takao@jp.fujitsu.com
Cc: kasong@redhat.com
Cc: keescook@chromium.org
Cc: mingo@redhat.com
Cc: msys.mizuma@gmail.com
Cc: tglx@linutronix.de
Cc: x86@kernel.org
Link: https://lkml.kernel.org/r/20190130112238.GB18383@zn.tnic
2019-02-01 11:51:01 +01:00

30 lines
747 B
C

// SPDX-License-Identifier: GPL-2.0
#include "misc.h"
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"
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);
}