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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2011-02-22 21:07:36 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-02-23 22:27:52 +0100
commitf1c2b357148ec27fcc6ce0992211209a0ea20d8f (patch)
tree04cde54cdda61caee0c6115469b9ae3a5088e8f1 /arch/x86/kernel/e820.c
parentcb4cfd568c1181501419b89d916e8523107c0106 (diff)
x86: e820: Remove conditional early mapping in parse_e820_ext
This patch ensures that the memory passed from parse_setup_data() is large enough to cover the complete data structure. That means that the conditional mapping in parse_e820_ext() can go. While here, I also attempt not to map two pages if the address is not aligned to a page boundary. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com> Cc: sodaville@linutronix.de Cc: devicetree-discuss@lists.ozlabs.org LKML-Reference: <1298405266-1624-2-git-send-email-bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/e820.c')
-rw-r--r--arch/x86/kernel/e820.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 294f26da0c0c..5fad62684651 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -667,21 +667,15 @@ __init void e820_setup_gap(void)
* boot_params.e820_map, others are passed via SETUP_E820_EXT node of
* linked list of struct setup_data, which is parsed here.
*/
-void __init parse_e820_ext(struct setup_data *sdata, unsigned long pa_data)
+void __init parse_e820_ext(struct setup_data *sdata)
{
- u32 map_len;
int entries;
struct e820entry *extmap;
entries = sdata->len / sizeof(struct e820entry);
- map_len = sdata->len + sizeof(struct setup_data);
- if (map_len > PAGE_SIZE)
- sdata = early_ioremap(pa_data, map_len);
extmap = (struct e820entry *)(sdata->data);
__append_e820_map(extmap, entries);
sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
- if (map_len > PAGE_SIZE)
- early_iounmap(sdata, map_len);
printk(KERN_INFO "extended physical RAM map:\n");
e820_print_map("extended");
}