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s390/mem_detect: Use IS_ENABLED(CONFIG_BLK_DEV_INITRD)
IS_ENABLED should generally use CONFIG_ prefaced symbols and it doesn't appear as if there is a BLK_DEV_INITRD define. Cc: <stable@vger.kernel.org> # 4.20 Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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@ -25,7 +25,7 @@ static void *mem_detect_alloc_extended(void)
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{
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unsigned long offset = ALIGN(mem_safe_offset(), sizeof(u64));
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if (IS_ENABLED(BLK_DEV_INITRD) && INITRD_START && INITRD_SIZE &&
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if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && INITRD_START && INITRD_SIZE &&
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INITRD_START < offset + ENTRIES_EXTENDED_MAX)
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offset = ALIGN(INITRD_START + INITRD_SIZE, sizeof(u64));
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