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Subject[PATCH v7 21/27] x86, boot: Not need to check setup_header version
Date
That is for bootloader.

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

kexec till now for elf image, will set setup_data to 0.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
---
arch/x86/kernel/setup.c | 6 ------
1 file changed, 6 deletions(-)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 2509efa..15ce495 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));
--
1.7.10.4


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