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authorChristoph Hellwig <hch@lst.de>2018-10-18 15:03:36 +0200
committerMartin K. Petersen <martin.petersen@oracle.com>2018-11-06 21:31:28 -0500
commitac4b1657b75251f9c8731403e5b79fa812e0b05c (patch)
tree7df2f2261bca724c1bcbfbda901f6a3a73ef300f /drivers/scsi/qla1280.c
parentf20f43c35aa4ebce8fed57168cb358611259c634 (diff)
downloadlwn-ac4b1657b75251f9c8731403e5b79fa812e0b05c.tar.gz
lwn-ac4b1657b75251f9c8731403e5b79fa812e0b05c.zip
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>
Diffstat (limited to 'drivers/scsi/qla1280.c')
-rw-r--r--drivers/scsi/qla1280.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index f19e8d192d36..9c5b67304a76 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -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