From b22da3d8526a935aa31e086e63f60ff3246cb61c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 07:24:11 +0000
Subject: [PATCH] add stmac read mac form eeprom
---
kernel/drivers/firmware/efi/dev-path-parser.c | 51 ++++++++++++++++++++++-----------------------------
1 files changed, 22 insertions(+), 29 deletions(-)
diff --git a/kernel/drivers/firmware/efi/dev-path-parser.c b/kernel/drivers/firmware/efi/dev-path-parser.c
index 85d1834..5c9625e 100644
--- a/kernel/drivers/firmware/efi/dev-path-parser.c
+++ b/kernel/drivers/firmware/efi/dev-path-parser.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* dev-path-parser.c - EFI Device Path parser
* Copyright (C) 2016 Lukas Wunner <lukas@wunner.de>
@@ -5,14 +6,6 @@
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (version 2) as
* published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/acpi.h>
@@ -24,9 +17,9 @@
char uid[11]; /* UINT_MAX + null byte */
};
-static int __init match_acpi_dev(struct device *dev, void *data)
+static int __init match_acpi_dev(struct device *dev, const void *data)
{
- struct acpi_hid_uid hid_uid = *(struct acpi_hid_uid *)data;
+ struct acpi_hid_uid hid_uid = *(const struct acpi_hid_uid *)data;
struct acpi_device *adev = to_acpi_device(dev);
if (acpi_match_device_ids(adev, hid_uid.hid))
@@ -38,13 +31,13 @@
return !strcmp("0", hid_uid.uid);
}
-static long __init parse_acpi_path(struct efi_dev_path *node,
+static long __init parse_acpi_path(const struct efi_dev_path *node,
struct device *parent, struct device **child)
{
struct acpi_hid_uid hid_uid = {};
struct device *phys_dev;
- if (node->length != 12)
+ if (node->header.length != 12)
return -EINVAL;
sprintf(hid_uid.hid[0].id, "%c%c%c%04X",
@@ -76,12 +69,12 @@
return dev_is_pci(dev) && to_pci_dev(dev)->devfn == devfn;
}
-static long __init parse_pci_path(struct efi_dev_path *node,
+static long __init parse_pci_path(const struct efi_dev_path *node,
struct device *parent, struct device **child)
{
unsigned int devfn;
- if (node->length != 6)
+ if (node->header.length != 6)
return -EINVAL;
if (!parent)
return -EINVAL;
@@ -112,19 +105,19 @@
* search for a device.
*/
-static long __init parse_end_path(struct efi_dev_path *node,
+static long __init parse_end_path(const struct efi_dev_path *node,
struct device *parent, struct device **child)
{
- if (node->length != 4)
+ if (node->header.length != 4)
return -EINVAL;
- if (node->sub_type != EFI_DEV_END_INSTANCE &&
- node->sub_type != EFI_DEV_END_ENTIRE)
+ if (node->header.sub_type != EFI_DEV_END_INSTANCE &&
+ node->header.sub_type != EFI_DEV_END_ENTIRE)
return -EINVAL;
if (!parent)
return -ENODEV;
*child = get_device(parent);
- return node->sub_type;
+ return node->header.sub_type;
}
/**
@@ -163,7 +156,7 @@
* %ERR_PTR(-EINVAL) if a node is malformed or exceeds @len,
* %ERR_PTR(-ENOTSUPP) if support for a node type is not yet implemented.
*/
-struct device * __init efi_get_device_by_path(struct efi_dev_path **node,
+struct device * __init efi_get_device_by_path(const struct efi_dev_path **node,
size_t *len)
{
struct device *parent = NULL, *child;
@@ -173,16 +166,16 @@
return NULL;
while (!ret) {
- if (*len < 4 || *len < (*node)->length)
+ if (*len < 4 || *len < (*node)->header.length)
ret = -EINVAL;
- else if ((*node)->type == EFI_DEV_ACPI &&
- (*node)->sub_type == EFI_DEV_BASIC_ACPI)
+ else if ((*node)->header.type == EFI_DEV_ACPI &&
+ (*node)->header.sub_type == EFI_DEV_BASIC_ACPI)
ret = parse_acpi_path(*node, parent, &child);
- else if ((*node)->type == EFI_DEV_HW &&
- (*node)->sub_type == EFI_DEV_PCI)
+ else if ((*node)->header.type == EFI_DEV_HW &&
+ (*node)->header.sub_type == EFI_DEV_PCI)
ret = parse_pci_path(*node, parent, &child);
- else if (((*node)->type == EFI_DEV_END_PATH ||
- (*node)->type == EFI_DEV_END_PATH2))
+ else if (((*node)->header.type == EFI_DEV_END_PATH ||
+ (*node)->header.type == EFI_DEV_END_PATH2))
ret = parse_end_path(*node, parent, &child);
else
ret = -ENOTSUPP;
@@ -192,8 +185,8 @@
return ERR_PTR(ret);
parent = child;
- *node = (void *)*node + (*node)->length;
- *len -= (*node)->length;
+ *node = (void *)*node + (*node)->header.length;
+ *len -= (*node)->header.length;
}
if (ret == EFI_DEV_END_ENTIRE)
--
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