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/capsule-loader.c | 38 ++++++++++----------------------------
1 files changed, 10 insertions(+), 28 deletions(-)
diff --git a/kernel/drivers/firmware/efi/capsule-loader.c b/kernel/drivers/firmware/efi/capsule-loader.c
index 9668898..3e8d4b5 100644
--- a/kernel/drivers/firmware/efi/capsule-loader.c
+++ b/kernel/drivers/firmware/efi/capsule-loader.c
@@ -1,10 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* EFI capsule loader driver.
*
* Copyright 2015 Intel Corporation
- *
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
*/
#define pr_fmt(fmt) "efi: " fmt
@@ -13,6 +11,7 @@
#include <linux/module.h>
#include <linux/miscdevice.h>
#include <linux/highmem.h>
+#include <linux/io.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/efi.h>
@@ -169,7 +168,7 @@
static ssize_t efi_capsule_write(struct file *file, const char __user *buff,
size_t count, loff_t *offp)
{
- int ret = 0;
+ int ret;
struct capsule_info *cap_info = file->private_data;
struct page *page;
void *kbuff = NULL;
@@ -244,29 +243,6 @@
}
/**
- * efi_capsule_flush - called by file close or file flush
- * @file: file pointer
- * @id: not used
- *
- * If a capsule is being partially uploaded then calling this function
- * will be treated as upload termination and will free those completed
- * buffer pages and -ECANCELED will be returned.
- **/
-static int efi_capsule_flush(struct file *file, fl_owner_t id)
-{
- int ret = 0;
- struct capsule_info *cap_info = file->private_data;
-
- if (cap_info->index > 0) {
- pr_err("capsule upload not complete\n");
- efi_free_all_buff_pages(cap_info);
- ret = -ECANCELED;
- }
-
- return ret;
-}
-
-/**
* efi_capsule_release - called by file close
* @inode: not used
* @file: file pointer
@@ -277,6 +253,13 @@
static int efi_capsule_release(struct inode *inode, struct file *file)
{
struct capsule_info *cap_info = file->private_data;
+
+ if (cap_info->index > 0 &&
+ (cap_info->header.headersize == 0 ||
+ cap_info->count < cap_info->total_size)) {
+ pr_err("capsule upload not complete\n");
+ efi_free_all_buff_pages(cap_info);
+ }
kfree(cap_info->pages);
kfree(cap_info->phys);
@@ -325,7 +308,6 @@
.owner = THIS_MODULE,
.open = efi_capsule_open,
.write = efi_capsule_write,
- .flush = efi_capsule_flush,
.release = efi_capsule_release,
.llseek = no_llseek,
};
--
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