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

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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>
This commit is contained in:
Yinghai Lu 2013-01-24 12:20:08 -08:00 committed by H. Peter Anvin
parent 8ee2f2dfdb
commit d1af6d045f
1 changed files with 0 additions and 6 deletions
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6
arch/x86/kernel/setup.c
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@ -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));