change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/arch/arm/kernel/dma-isa.c
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@@ -1,11 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  *  linux/arch/arm/kernel/dma-isa.c
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  *
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  *  Copyright (C) 1999-2000 Russell King
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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 version 2 as
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- * published by the Free Software Foundation.
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  *
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  *  ISA DMA primitives
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  *  Taken from various sources, including:
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@@ -55,6 +52,12 @@
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 	return chan < 4 ? count : (count << 1);
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 }
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+static struct device isa_dma_dev = {
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+	.init_name		= "fallback device",
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+	.coherent_dma_mask	= ~(dma_addr_t)0,
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+	.dma_mask		= &isa_dma_dev.coherent_dma_mask,
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+};
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+
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 static void isa_enable_dma(unsigned int chan, dma_t *dma)
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 {
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 	if (dma->invalid) {
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@@ -89,7 +92,7 @@
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 			dma->sg = &dma->buf;
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 			dma->sgcount = 1;
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 			dma->buf.length = dma->count;
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-			dma->buf.dma_address = dma_map_single(NULL,
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+			dma->buf.dma_address = dma_map_single(&isa_dma_dev,
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 				dma->addr, dma->count,
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 				direction);
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 		}