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Date: Tue, 20 Nov 2018 22:59:01 +0800
From: John Garry <john.garry@...wei.com>
To: <jejb@...ux.vnet.ibm.com>, <martin.petersen@...cle.com>
CC: <linuxarm@...wei.com>, <linux-kernel@...r.kernel.org>,
<linux-scsi@...r.kernel.org>, John Garry <john.garry@...wei.com>
Subject: [PATCH 1/4] scsi: Add scsi_prot_op_normal()
It is a common pattern to check if a Scsi command protection option is
"normal", i.e. regular IO.
Add a common simple wrapper for this.
Signed-off-by: John Garry <john.garry@...wei.com>
---
include/scsi/scsi_cmnd.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index c891ada..3b26ea1 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -271,6 +271,11 @@ static inline unsigned char scsi_get_prot_op(struct scsi_cmnd *scmd)
return scmd->prot_op;
}
+static inline bool scsi_prot_op_normal(struct scsi_cmnd *scmd)
+{
+ return scmd->prot_op == SCSI_PROT_NORMAL;
+}
+
enum scsi_prot_flags {
SCSI_PROT_TRANSFER_PI = 1 << 0,
SCSI_PROT_GUARD_CHECK = 1 << 1,
--
1.9.1
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