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scsi: qla1280: properly handle 64-bit DMA 

CONFIG_HIGHMEM is not in fact an indicator for > 32-bit dma addressing
Given that the driver is a bit weird and wants a compile time selection
switch to checking CONFIG_ARCH_DMA_ADDR_T_64BIT instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christoph Hellwig 2018-10-18 15:03:36 +02:00 committed by Martin K. Petersen
parent f20f43c35a
commit ac4b1657b7
1 changed files with 1 additions and 4 deletions
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5
drivers/scsi/qla1280.c
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@ -383,10 +383,7 @@
#include "qla1280.h"
#ifndef BITS_PER_LONG
#error "BITS_PER_LONG not defined!"
#endif
#if (BITS_PER_LONG == 64) || defined CONFIG_HIGHMEM
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
#define QLA_64BIT_PTR 1
#endif