diff options
| author | Yinghai Lu <yinghai@kernel.org> | 2013-01-24 12:19:57 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2013-01-29 15:25:45 -0800 |
| commit | f1da834cd902f5e5df0b11a3948fc43c6071b590 (patch) | |
| tree | b5af62bf482c592d589aab96f6910e5dd4d10220 /arch/x86/boot | |
| parent | a8a51a88d5152aa40e5e07dcdd939c7fafc42224 (diff) | |
x86, boot: Add get_cmd_line_ptr()
Add an accessor function for the command line address.
Later we will add support for holding a 64-bit address via ext_cmd_line_ptr.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/1359058816-7615-17-git-send-email-yinghai@kernel.org
Cc: Gokul Caushik <caushik1@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Joe Millenbach <jmillenbach@gmail.com>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/boot')
| -rw-r--r-- | arch/x86/boot/compressed/cmdline.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86/boot/compressed/cmdline.c b/arch/x86/boot/compressed/cmdline.c index 10f6b1178c68..b4c913c5c4ad 100644 --- a/arch/x86/boot/compressed/cmdline.c +++ b/arch/x86/boot/compressed/cmdline.c @@ -13,13 +13,19 @@ 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 = real_mode->hdr.cmd_line_ptr; + + return cmd_line_ptr; +} int cmdline_find_option(const char *option, char *buffer, int bufsize) { - return __cmdline_find_option(real_mode->hdr.cmd_line_ptr, option, buffer, 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(real_mode->hdr.cmd_line_ptr, option); + return __cmdline_find_option_bool(get_cmd_line_ptr(), option); } #endif |