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nvme: provide num dword helper
authorKeith Busch <kbusch@kernel.org>
Fri, 3 Apr 2020 16:24:01 +0000 (09:24 -0700)
committerJens Axboe <axboe@kernel.dk>
Sat, 9 May 2020 22:18:34 +0000 (16:18 -0600)
commit71fb90eb71d76089115aedf942533bcb3fd5c7f9
treea8e63f24789765ee0983d6e5c71f69922987a979
parent54840bed372c7779f23ece8514853fa83887b02e
nvme: provide num dword helper

Various nvme commands use a zeroes based number of dwords field. Create
a helper function to convert byte lengths to this format.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/nvme/host/core.c
drivers/nvme/host/nvme.h