disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/arch/powerpc/kernel/rtas_flash.c
..
..
@@ -1,10 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *  c 2001 PPC 64 Team, IBM Corp
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- *
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- *      This program is free software; you can redistribute it and/or
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- *      modify it under the terms of the GNU General Public License
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- *      as published by the Free Software Foundation; either version
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- *      2 of the License, or (at your option) any later version.
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  *
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  * /proc/powerpc/rtas/firmware_flash interface
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  *
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@@ -523,7 +519,7 @@
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 		args_buf->status = VALIDATE_INCOMPLETE;
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 	}
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-	if (!access_ok(VERIFY_READ, buf, count)) {
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+	if (!access_ok(buf, count)) {
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 		rc = -EFAULT;
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 		goto done;
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 	}
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@@ -659,7 +655,7 @@
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 	const char *filename;
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 	const char *rtas_call_name;
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 	int *status;
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-	const struct file_operations fops;
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+	const struct proc_ops ops;
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 };
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 static const struct rtas_flash_file rtas_flash_files[] = {
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@@ -667,36 +663,36 @@
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 		.filename	= "powerpc/rtas/" FIRMWARE_FLASH_NAME,
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 		.rtas_call_name	= "ibm,update-flash-64-and-reboot",
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 		.status		= &rtas_update_flash_data.status,
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-		.fops.read	= rtas_flash_read_msg,
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-		.fops.write	= rtas_flash_write,
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-		.fops.release	= rtas_flash_release,
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-		.fops.llseek	= default_llseek,
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+		.ops.proc_read	= rtas_flash_read_msg,
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+		.ops.proc_write	= rtas_flash_write,
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+		.ops.proc_release = rtas_flash_release,
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+		.ops.proc_lseek	= default_llseek,
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 	},
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 	{
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 		.filename	= "powerpc/rtas/" FIRMWARE_UPDATE_NAME,
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 		.rtas_call_name	= "ibm,update-flash-64-and-reboot",
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 		.status		= &rtas_update_flash_data.status,
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-		.fops.read	= rtas_flash_read_num,
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-		.fops.write	= rtas_flash_write,
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-		.fops.release	= rtas_flash_release,
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-		.fops.llseek	= default_llseek,
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+		.ops.proc_read	= rtas_flash_read_num,
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+		.ops.proc_write	= rtas_flash_write,
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+		.ops.proc_release = rtas_flash_release,
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+		.ops.proc_lseek	= default_llseek,
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 	},
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 	{
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 		.filename	= "powerpc/rtas/" VALIDATE_FLASH_NAME,
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 		.rtas_call_name	= "ibm,validate-flash-image",
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 		.status		= &rtas_validate_flash_data.status,
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-		.fops.read	= validate_flash_read,
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-		.fops.write	= validate_flash_write,
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-		.fops.release	= validate_flash_release,
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-		.fops.llseek	= default_llseek,
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+		.ops.proc_read	= validate_flash_read,
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+		.ops.proc_write	= validate_flash_write,
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+		.ops.proc_release = validate_flash_release,
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+		.ops.proc_lseek	= default_llseek,
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 	},
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 	{
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 		.filename	= "powerpc/rtas/" MANAGE_FLASH_NAME,
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 		.rtas_call_name	= "ibm,manage-flash-image",
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 		.status		= &rtas_manage_flash_data.status,
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-		.fops.read	= manage_flash_read,
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-		.fops.write	= manage_flash_write,
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-		.fops.llseek	= default_llseek,
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+		.ops.proc_read	= manage_flash_read,
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+		.ops.proc_write	= manage_flash_write,
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+		.ops.proc_lseek	= default_llseek,
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 	}
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 };
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..
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@@ -714,9 +710,9 @@
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 	if (!rtas_validate_flash_data.buf)
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 		return -ENOMEM;
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-	flash_block_cache = kmem_cache_create("rtas_flash_cache",
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-					      RTAS_BLK_SIZE, RTAS_BLK_SIZE, 0,
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-					      NULL);
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+	flash_block_cache = kmem_cache_create_usercopy("rtas_flash_cache",
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+						       RTAS_BLK_SIZE, RTAS_BLK_SIZE,
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+						       0, 0, RTAS_BLK_SIZE, NULL);
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 	if (!flash_block_cache) {
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 		printk(KERN_ERR "%s: failed to create block cache\n",
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 				__func__);
..
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@@ -727,7 +723,7 @@
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 		const struct rtas_flash_file *f = &rtas_flash_files[i];
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 		int token;
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-		if (!proc_create(f->filename, 0600, NULL, &f->fops))
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+		if (!proc_create(f->filename, 0600, NULL, &f->ops))
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 			goto enomem;
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 		/*