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authorJames Smart <james.smart@emulex.com>2013-09-06 12:21:50 -0400
committerJames Bottomley <JBottomley@Parallels.com>2013-09-10 17:30:09 -0700
commit092cb034b55310c694c30b36208236d70ed3eae1 (patch)
treef839ee0d2816c3b216c3c73746439b907f1fbfac /drivers/scsi
parentacbd86160acdd68946e24a71e608d832c9c9bc1c (diff)
downloadop-kernel-dev-092cb034b55310c694c30b36208236d70ed3eae1.zip
op-kernel-dev-092cb034b55310c694c30b36208236d70ed3eae1.tar.gz
[SCSI] lpfc 8.3.42: Fixed failure to allocate SCSI buffer on PPC64 platform for SLI4 devices
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 46c4f1b..9480c55 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -1000,9 +1000,12 @@ lpfc_new_scsi_buf_s4(struct lpfc_vport *vport, int num_to_alloc)
}
memset(psb->data, 0, phba->cfg_sg_dma_buf_size);
- /* Page alignment is CRITICAL, double check to be sure */
- if (((unsigned long)(psb->data) &
- (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0) {
+ /*
+ * 4K Page alignment is CRITICAL to BlockGuard, double check
+ * to be sure.
+ */
+ if (phba->cfg_enable_bg && (((unsigned long)(psb->data) &
+ (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
psb->data, psb->dma_handle);
kfree(psb);
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