add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/firmware/google/vpd.c
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@@ -1,18 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * vpd.c
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  *
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  * Driver for exporting VPD content to sysfs.
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  *
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  * Copyright 2017 Google Inc.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License v2.0 as published by
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- * the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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  */
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 #include <linux/ctype.h>
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@@ -40,7 +32,7 @@
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 	u32 version;
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 	u32 ro_size;
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 	u32 rw_size;
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-	u8  blob[0];
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+	u8  blob[];
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 };
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 struct vpd_section {
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@@ -198,7 +190,7 @@
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 	sec->name = name;
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-	/* We want to export the raw partion with name ${name}_raw */
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+	/* We want to export the raw partition with name ${name}_raw */
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 	sec->raw_name = kasprintf(GFP_KERNEL, "%s_raw", name);
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 	if (!sec->raw_name) {
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 		err = -ENOMEM;
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@@ -254,7 +246,7 @@
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 static int vpd_sections_init(phys_addr_t physaddr)
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 {
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-	struct vpd_cbmem __iomem *temp;
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+	struct vpd_cbmem *temp;
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 	struct vpd_cbmem header;
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 	int ret = 0;
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@@ -262,7 +254,7 @@
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 	if (!temp)
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 		return -ENOMEM;
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-	memcpy_fromio(&header, temp, sizeof(struct vpd_cbmem));
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+	memcpy(&header, temp, sizeof(struct vpd_cbmem));
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 	memunmap(temp);
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 	if (header.magic != VPD_CBMEM_MAGIC)
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@@ -324,19 +316,7 @@
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 	},
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 	.tag = CB_TAG_VPD,
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 };
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-
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-static int __init coreboot_vpd_init(void)
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-{
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-	return coreboot_driver_register(&vpd_driver);
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-}
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-
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-static void __exit coreboot_vpd_exit(void)
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-{
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-	coreboot_driver_unregister(&vpd_driver);
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-}
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-
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-module_init(coreboot_vpd_init);
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-module_exit(coreboot_vpd_exit);
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+module_coreboot_driver(vpd_driver);
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 MODULE_AUTHOR("Google, Inc.");
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 MODULE_LICENSE("GPL");