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efi_loader: EFI_VARIABLE_READ_ONLY should be 32bit

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GetVariable() and SetVariable() only accept a 32bit value for attributes.
It makes not sense to define EFI_VARIABLE_READ_ONLY as unsigned long.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Heinrich Schuchardt
2024-04-03 17:33:34 +02:00
parent 19327c1f90
commit 3b51c3a0b0
2 changed files with 3 additions and 3 deletions
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2
include/efi_variable.h
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@@ -8,7 +8,7 @@
#include <linux/bitops.h>
#define EFI_VARIABLE_READ_ONLY BIT(31)
#define EFI_VARIABLE_READ_ONLY 0x80000000
enum efi_auth_var_type {
EFI_AUTH_VAR_NONE = 0,

4
lib/efi_loader/efi_variable.c
View File

@@ -276,8 +276,8 @@ efi_status_t efi_set_variable_int(const u16 *variable_name,
/* attributes won't be changed */
if (!delete &&
((ro_check && var->attr != attributes) ||
(!ro_check && ((var->attr & ~(u32)EFI_VARIABLE_READ_ONLY)
!= (attributes & ~(u32)EFI_VARIABLE_READ_ONLY))))) {
(!ro_check && ((var->attr & ~EFI_VARIABLE_READ_ONLY)
!= (attributes & ~EFI_VARIABLE_READ_ONLY))))) {
return EFI_INVALID_PARAMETER;
}
time = var->time;