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From:   Sasha Levin <sashal@kernel.org>
To:     linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc:     Nathan Chancellor <natechancellor@gmail.com>,
        "Martin K . Petersen" <martin.petersen@oracle.com>,
        Sasha Levin <sashal@kernel.org>, linux-scsi@vger.kernel.org,
        clang-built-linux@googlegroups.com
Subject: [PATCH AUTOSEL 4.19 051/237] scsi: isci: Use proper enumerated type in atapi_d2h_reg_frame_handler
Date:   Sat, 16 Nov 2019 10:38:06 -0500
Message-Id: <20191116154113.7417-51-sashal@kernel.org>
In-Reply-To: <20191116154113.7417-1-sashal@kernel.org>
References: <20191116154113.7417-1-sashal@kernel.org>
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From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit e9e9a103528c7e199ead6e5374c9c52cf16b5802 ]

Clang warns when one enumerated type is implicitly converted to another.

drivers/scsi/isci/request.c:1629:13: warning: implicit conversion from
enumeration type 'enum sci_io_status' to different enumeration type
'enum sci_status' [-Wenum-conversion]
                        status = SCI_IO_FAILURE_RESPONSE_VALID;
                               ~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/isci/request.c:1631:12: warning: implicit conversion from
enumeration type 'enum sci_io_status' to different enumeration type
'enum sci_status' [-Wenum-conversion]
                status = SCI_IO_FAILURE_RESPONSE_VALID;
                       ~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

status is of type sci_status but SCI_IO_FAILURE_RESPONSE_VALID is of
type sci_io_status. Use SCI_FAILURE_IO_RESPONSE_VALID, which is from
sci_status and has SCI_IO_FAILURE_RESPONSE_VALID's exact value since
that is what SCI_IO_FAILURE_RESPONSE_VALID is mapped to in the isci.h
file.

Link: https://github.com/ClangBuiltLinux/linux/issues/153
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/isci/request.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c
index ed197bc8e801a..2f151708b59ae 100644
--- a/drivers/scsi/isci/request.c
+++ b/drivers/scsi/isci/request.c
@@ -1626,9 +1626,9 @@ static enum sci_status atapi_d2h_reg_frame_handler(struct isci_request *ireq,
 
 	if (status == SCI_SUCCESS) {
 		if (ireq->stp.rsp.status & ATA_ERR)
-			status = SCI_IO_FAILURE_RESPONSE_VALID;
+			status = SCI_FAILURE_IO_RESPONSE_VALID;
 	} else {
-		status = SCI_IO_FAILURE_RESPONSE_VALID;
+		status = SCI_FAILURE_IO_RESPONSE_VALID;
 	}
 
 	if (status != SCI_SUCCESS) {
-- 
2.20.1