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authorIngo Molnar <mingo@kernel.org>2015-06-30 07:57:04 +0200
committerIngo Molnar <mingo@kernel.org>2015-06-30 07:57:04 +0200
commitdc5fb575df9cdd34ac12bf7a814c9beae0a7ca9b (patch)
treecd2febb026bab11526f38b266a64f5086330d793
parentdb52ef74b35dcb91fd154fa52c618bdd1b90e28e (diff)
parentf2af7d25b4aa5b01203cc76e7530ea7fd18864a0 (diff)
downloadlinux-dc5fb575df9cdd34ac12bf7a814c9beae0a7ca9b.tar.bz2
Merge branch 'x86/boot' into x86/urgent
Merge branch that got ready. Signed-off-by: Ingo Molnar <mingo@kernel.org>
-rw-r--r--Documentation/x86/boot.txt2
-rw-r--r--arch/x86/kernel/setup.c7
2 files changed, 4 insertions, 5 deletions
diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt
index 7c1f9fad6674..9da6f3512249 100644
--- a/Documentation/x86/boot.txt
+++ b/Documentation/x86/boot.txt
@@ -406,7 +406,7 @@ Protocol: 2.00+
- If 0, the protected-mode code is loaded at 0x10000.
- If 1, the protected-mode code is loaded at 0x100000.
- Bit 1 (kernel internal): ALSR_FLAG
+ Bit 1 (kernel internal): KASLR_FLAG
- Used internally by the compressed kernel to communicate
KASLR status to kernel proper.
If 1, KASLR enabled.
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 265a6fdea8b7..4883c0a990a5 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -461,19 +461,18 @@ static void __init e820_reserve_setup_data(void)
{
struct setup_data *data;
u64 pa_data;
- int found = 0;
pa_data = boot_params.hdr.setup_data;
+ if (!pa_data)
+ return;
+
while (pa_data) {
data = early_memremap(pa_data, sizeof(*data));
e820_update_range(pa_data, sizeof(*data)+data->len,
E820_RAM, E820_RESERVED_KERN);
- found = 1;
pa_data = data->next;
early_memunmap(data, sizeof(*data));
}
- if (!found)
- return;
sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
memcpy(&e820_saved, &e820, sizeof(struct e820map));