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authorChristof Schmitt <christof.schmitt@de.ibm.com>2010-07-16 15:37:36 +0200
committerJames Bottomley <James.Bottomley@suse.de>2010-07-28 09:48:48 -0500
commitfaf4cd854203b26527d81e7e13d66e78774dad44 (patch)
tree6828d69341747869ca0de9ed5cf4d3b46ff13efd
parent1bf3ff02ca6247b2d7c9ebda93002392bf60a61d (diff)
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[SCSI] zfcp: Use correct width for timer_interval field
The timer_interval is 14 bits in width. Introduce a define for properly masking the value. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
-rw-r--r--drivers/s390/scsi/zfcp_fsf.c2
-rw-r--r--drivers/s390/scsi/zfcp_fsf.h2
2 files changed, 3 insertions, 1 deletions
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 71663fb7731..ee0c1df8a6d 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -495,7 +495,7 @@ static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3;
adapter->hydra_version = bottom->adapter_type;
- adapter->timer_ticks = bottom->timer_interval;
+ adapter->timer_ticks = bottom->timer_interval & ZFCP_FSF_TIMER_INT_MASK;
adapter->stat_read_buf_num = max(bottom->status_read_buf_num,
(u16)FSF_STATUS_READS_RECOM);
diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h
index 519083fd6e8..ca45e32d6b6 100644
--- a/drivers/s390/scsi/zfcp_fsf.h
+++ b/drivers/s390/scsi/zfcp_fsf.h
@@ -352,6 +352,8 @@ struct fsf_qtcb_bottom_support {
u8 els[256];
} __attribute__ ((packed));
+#define ZFCP_FSF_TIMER_INT_MASK 0x3FFF
+
struct fsf_qtcb_bottom_config {
u32 lic_version;
u32 feature_selection;