x86, boot: Not need to check setup_header version for setup_data

That is for bootloaders.

setup_data is in setup_header, and bootloader is copying that from bzImage.
So for old bootloader should keep that as 0 already.

old kexec-tools till now for elf image set setup_data to 0, so it is ok.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/1359058816-7615-28-git-send-email-yinghai@kernel.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

1 files changed, 0 insertions, 6 deletions

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 519f2bc4950a..b80bee10982f 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -439,8 +439,6 @@ static void __init parse_setup_data(void)
         struct setup_data *data;
         u64 pa_data;
 
-        if (boot_params.hdr.version < 0x0209)
-                return;
         pa_data = boot_params.hdr.setup_data;
         while (pa_data) {
                 u32 data_len, map_len;
@@ -476,8 +474,6 @@ static void __init e820_reserve_setup_data(void)
         u64 pa_data;
         int found = 0;
 
-        if (boot_params.hdr.version < 0x0209)
-                return;
         pa_data = boot_params.hdr.setup_data;
         while (pa_data) {
                 data = early_memremap(pa_data, sizeof(*data));
@@ -501,8 +497,6 @@ static void __init memblock_x86_reserve_range_setup_data(void)
         struct setup_data *data;
         u64 pa_data;
 
-        if (boot_params.hdr.version < 0x0209)
-                return;
         pa_data = boot_params.hdr.setup_data;
         while (pa_data) {
                 data = early_memremap(pa_data, sizeof(*data));