The fix up from Daniel Drake for replacing GFP_DMA with something
more sensible has gone in here:
commit 
69e562c234440fb7410877b5b24f4b29ef8521d1
Author: Daniel Drake <dsd@gentoo.org>
Date:   Wed Feb 20 13:29:05 2008 +0000
    [SCSI] arcmsr: fix message allocation
add a change log and update the version for this.
Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
 **                                             8.replace pci_alloc_consistent()/pci_free_consistent() with kmalloc()/kfree() in arcmsr_iop_message_xfer()
 **                                             9. fix the release of dma memory for type B in arcmsr_free_ccb_pool()
 **                                             10.fix the arcmsr_polling_hbb_ccbdone()
+** 1.20.00.15  02/27/2008      Erich Chen & Nick Cheng
+**                                             1.arcmsr_iop_message_xfer() is called from atomic context under the
+**                                             queuecommand scsi_host_template handler. James Bottomley pointed out
+**                                             that the current GFP_KERNEL|GFP_DMA flags are wrong: firstly we are in
+**                                             atomic context, secondly this memory is not used for DMA.
+**                                             Also removed some unneeded casts. Thanks to Daniel Drake <dsd@gentoo.org>
 **************************************************************************
 
 /*The limit of outstanding scsi command that firmware can handle*/
 #define ARCMSR_MAX_OUTSTANDING_CMD                                             256
 #define ARCMSR_MAX_FREECCB_NUM                                                 320
-#define ARCMSR_DRIVER_VERSION               "Driver Version 1.20.00.15 2007/12/24"
+#define ARCMSR_DRIVER_VERSION               "Driver Version 1.20.00.15 2008/02/27"
 #define ARCMSR_SCSI_INITIATOR_ID                                               255
 #define ARCMSR_MAX_XFER_SECTORS                                                        512
 #define ARCMSR_MAX_XFER_SECTORS_B                                              4096