Commit-ID: 5db80c65140c6502d5c2345d0b0fa166eecedc61
Gitweb: http://git.kernel.org/tip/5db80c65140c6502d5c2345d0b0fa166eecedc61
Author: Madper Xie <cxie@xxxxxxxxxx>
AuthorDate: Sun, 10 Nov 2013 22:15:11 +0800
Committer: Matt Fleming <matt.fleming@xxxxxxxxx>
CommitDate: Tue, 4 Mar 2014 16:16:17 +0000
x86/efi: Delete out-of-date comments of efi_query_variable_store
For now we only ensure about 5kb free space for avoiding our board
refusing boot. But the comment lies that we retain 50% space.
Signed-off-by: Madper Xie <cxie@xxxxxxxxxx>
Signed-off-by: Matt Fleming <matt.fleming@xxxxxxxxx>
---
arch/x86/platform/efi/efi.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 541e7db..dc1dd6d 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -1110,9 +1110,8 @@ u64 efi_mem_attributes(unsigned long phys_addr)
}
/*
- * Some firmware has serious problems when using more than 50% of the EFI
- * variable store, i.e. it triggers bugs that can brick machines. Ensure that
- * we never use more than this safe limit.
+ * Some firmware implementations refuse to boot if there's insufficient space
+ * in the variable store. Ensure that we never use more than a safe limit.
*
* Return EFI_SUCCESS if it is safe to write 'size' bytes to the variable
* store.
@@ -1131,10 +1130,9 @@ efi_status_t efi_query_variable_store(u32 attributes, unsigned long size)
return status;
/*
- * Some firmware implementations refuse to boot if there's insufficient
- * space in the variable store. We account for that by refusing the
- * write if permitting it would reduce the available space to under
- * 5KB. This figure was provided by Samsung, so should be safe.
+ * We account for that by refusing the write if permitting it would
+ * reduce the available space to under 5KB. This figure was provided by
+ * Samsung, so should be safe.
*/
if ((remaining_size - size < EFI_MIN_RESERVE) &&
!efi_no_storage_paranoia) {
--
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