[SCSI] mptsas : PAE Kernel more than 4 GB kernel panic

This patch is solving problem for PAE kernel DMA operation.
On PAE system dma_addr and unsigned long will have different
values.
Now dma_addr is not type casted using unsigned long.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 8ab7b37ed70d..76fa2ee0b574 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -1015,9 +1015,9 @@ mpt_add_sge_64bit(void *pAddr, u32 flagslength, dma_addr_t dma_addr)
 {
         SGESimple64_t *pSge = (SGESimple64_t *) pAddr;
         pSge->Address.Low = cpu_to_le32
-                        (lower_32_bits((unsigned long)(dma_addr)));
+                        (lower_32_bits(dma_addr));
         pSge->Address.High = cpu_to_le32
-                        (upper_32_bits((unsigned long)dma_addr));
+                        (upper_32_bits(dma_addr));
         pSge->FlagsLength = cpu_to_le32
                         ((flagslength | MPT_SGE_FLAGS_64_BIT_ADDRESSING));
 }
@@ -1038,8 +1038,8 @@ mpt_add_sge_64bit_1078(void *pAddr, u32 flagslength, dma_addr_t dma_addr)
         u32 tmp;
 
         pSge->Address.Low = cpu_to_le32
-                        (lower_32_bits((unsigned long)(dma_addr)));
-        tmp = (u32)(upper_32_bits((unsigned long)dma_addr));
+                        (lower_32_bits(dma_addr));
+        tmp = (u32)(upper_32_bits(dma_addr));
 
         /*
          * 1078 errata workaround for the 36GB limitation
@@ -1101,7 +1101,7 @@ mpt_add_chain_64bit(void *pAddr, u8 next, u16 length, dma_addr_t dma_addr)
                 pChain->NextChainOffset = next;
 
                 pChain->Address.Low = cpu_to_le32(tmp);
-                tmp = (u32)(upper_32_bits((unsigned long)dma_addr));
+                tmp = (u32)(upper_32_bits(dma_addr));
                 pChain->Address.High = cpu_to_le32(tmp);
 }