修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/arch/powerpc/sysdev/msi_bitmap.c
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@@ -1,18 +1,13 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright 2006-2008, Michael Ellerman, IBM Corporation.
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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; version 2 of the
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- * License.
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- *
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  */
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 #include <linux/slab.h>
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 #include <linux/kernel.h>
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 #include <linux/kmemleak.h>
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 #include <linux/bitmap.h>
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-#include <linux/bootmem.h>
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+#include <linux/memblock.h>
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 #include <asm/msi_bitmap.h>
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 #include <asm/setup.h>
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@@ -128,7 +123,10 @@
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 	if (bmp->bitmap_from_slab)
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 		bmp->bitmap = kzalloc(size, GFP_KERNEL);
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 	else {
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-		bmp->bitmap = memblock_virt_alloc(size, 0);
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+		bmp->bitmap = memblock_alloc(size, SMP_CACHE_BYTES);
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+		if (!bmp->bitmap)
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+			panic("%s: Failed to allocate %u bytes\n", __func__,
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+			      size);
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 		/* the bitmap won't be freed from memblock allocator */
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 		kmemleak_not_leak(bmp->bitmap);
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 	}