u-boot/lib/efi_loader/efi_conformance.c
Heinrich Schuchardt 8d4c2c770c efi_loader: fix efi_ecpt_register()
num_entries should be unsigned to avoid warnings. As the target field is
u16 we should use this type.

    lib/efi_loader/efi_conformance.c: In function ‘efi_ecpt_register’:
    lib/efi_loader/efi_conformance.c:30:33: warning:
    conversion to ‘long unsigned int’ from ‘int’ may change
    the sign of the result [-Wsign-conversion]
       30 |         ecpt_size = num_entries * sizeof(efi_guid_t)
          |                                 ^
    lib/efi_loader/efi_conformance.c:46:36: warning:
    conversion from ‘int’ to ‘u16’ {aka ‘short unsigned int’}
    may change value [-Wconversion]
       46 |         ecpt->number_of_profiles = num_entries;
          |                                    ^~~~~~~~~~~

Fixes: 6b92c17352 ("efi: Create ECPT table")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2023-02-10 13:05:40 +01:00

60 lines
1.4 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* EFI conformance profile table
*
* Copyright (C) 2022 Arm Ltd.
*/
#include <common.h>
#include <efi_loader.h>
#include <log.h>
#include <efi_api.h>
#include <malloc.h>
static const efi_guid_t efi_ecpt_guid = EFI_CONFORMANCE_PROFILES_TABLE_GUID;
static const efi_guid_t efi_ebbr_2_1_guid =
EFI_CONFORMANCE_PROFILE_EBBR_2_1_GUID;
/**
* efi_ecpt_register() - Install the ECPT system table.
*
* Return: status code
*/
efi_status_t efi_ecpt_register(void)
{
u16 num_entries = 0;
struct efi_conformance_profiles_table *ecpt;
efi_status_t ret;
size_t ecpt_size;
ecpt_size = num_entries * sizeof(efi_guid_t)
+ sizeof(struct efi_conformance_profiles_table);
ret = efi_allocate_pool(EFI_BOOT_SERVICES_DATA, ecpt_size,
(void **)&ecpt);
if (ret != EFI_SUCCESS) {
log_err("Out of memory\n");
return ret;
}
if (CONFIG_IS_ENABLED(EFI_EBBR_2_1_CONFORMANCE))
guidcpy(&ecpt->conformance_profiles[num_entries++],
&efi_ebbr_2_1_guid);
ecpt->version = EFI_CONFORMANCE_PROFILES_TABLE_VERSION;
ecpt->number_of_profiles = num_entries;
/* Install the ECPT in the system configuration table. */
ret = efi_install_configuration_table(&efi_ecpt_guid, (void *)ecpt);
if (ret != EFI_SUCCESS) {
log_err("Failed to install ECPT\n");
efi_free_pool(ecpt);
return ret;
}
log_debug("ECPT created\n");
return EFI_SUCCESS;
}