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authorMadper Xie <cxie@redhat.com>2013-11-10 22:15:11 +0800
committerMatt Fleming <matt.fleming@intel.com>2014-03-04 16:16:17 +0000
commit5db80c65140c6502d5c2345d0b0fa166eecedc61 (patch)
tree113509b211e53616417cdf4411f12ed38dcf987d /arch/x86/platform/efi
parentaca32b5768bb314f5f3f42e26822424468412f5a (diff)
x86/efi: Delete out-of-date comments of efi_query_variable_store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@redhat.com> Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'arch/x86/platform/efi')
-rw-r--r--arch/x86/platform/efi/efi.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 541e7db26c1..dc1dd6d09de 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) {