linux-kernel - [PATCH] nvme: change nvme_passthru

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Message-Id: <20191105061510.22233-1-csm10495@gmail.com>
Date:   Mon,  4 Nov 2019 22:15:10 -0800
From:   Charles Machalow <csm10495@...il.com>
To:     linux-nvme@...ts.infradead.org
Cc:     csm10495@...il.com, marta.rybczynska@...ray.eu,
        Keith Busch <kbusch@...nel.org>, Jens Axboe <axboe@...com>,
        Christoph Hellwig <hch@....de>,
        Sagi Grimberg <sagi@...mberg.me>, linux-kernel@...r.kernel.org
Subject: [PATCH] nvme: change nvme_passthru_cmd64 to explicitly mark rsvd

Changing nvme_passthru_cmd64 to add a field: rsvd2. This field is an explicit
marker for the padding space added on certain platforms as a result of the
enlargement of the result field from 32 bit to 64 bits in size.
---
 include/uapi/linux/nvme_ioctl.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/nvme_ioctl.h b/include/uapi/linux/nvme_ioctl.h
index e168dc59e..d99b5a772 100644
--- a/include/uapi/linux/nvme_ioctl.h
+++ b/include/uapi/linux/nvme_ioctl.h
@@ -63,6 +63,7 @@ struct nvme_passthru_cmd64 {
 	__u32	cdw14;
 	__u32	cdw15;
 	__u32	timeout_ms;
+	__u32   rsvd2;
 	__u64	result;
 };
 
-- 
2.17.1