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Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_base.c')
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_base.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index 14ebb54fae33..88c80efa7d7b 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -2492,9 +2492,13 @@ _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
/* command line tunables for max sgl entries */
if (max_sgl_entries != -1) {
- ioc->shost->sg_tablesize = (max_sgl_entries <
- MPT2SAS_SG_DEPTH) ? max_sgl_entries :
- MPT2SAS_SG_DEPTH;
+ ioc->shost->sg_tablesize = min_t(unsigned short,
+ max_sgl_entries, SCSI_MAX_SG_CHAIN_SEGMENTS);
+ if (ioc->shost->sg_tablesize > MPT2SAS_SG_DEPTH)
+ printk(MPT2SAS_WARN_FMT
+ "sg_tablesize(%u) is bigger than kernel defined"
+ " SCSI_MAX_SG_SEGMENTS(%u)\n", ioc->name,
+ ioc->shost->sg_tablesize, MPT2SAS_SG_DEPTH);
} else {
ioc->shost->sg_tablesize = MPT2SAS_SG_DEPTH;
}