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[SCSI] mpt2sas: mpt2sas_base_get_sense_buffer_dma should be returning little endian

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cpu_to_le64 when calculating the physical dma address. This will properly
handle endianess on big endian systems.  The return value of this function
was changed from dma_addr_t to __le64. Remove the typecasting of u32 when
setting the SenseBufferLowAddress, since its already in __le32 format.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: Eric Moore <Eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Kashyap, Desai
2009-09-23 17:34:13 +05:30
committed by James Bottomley
parent e4e7c7ed34
commit ec9472c74c
4 changed files with 7 additions and 6 deletions
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7
drivers/scsi/mpt2sas/mpt2sas_base.c
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@@ -1328,12 +1328,13 @@ mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
* @ioc: per adapter object
* @smid: system request message index
*
* Returns phys pointer to sense buffer.
* Returns phys pointer to the low 32bit address of the sense buffer.
*/
dma_addr_t
__le32
mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
return ioc->sense_dma + ((smid - 1) * SCSI_SENSE_BUFFERSIZE);
return cpu_to_le32(ioc->sense_dma +
((smid - 1) * SCSI_SENSE_BUFFERSIZE));
}
/**