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nvme-core: make implicit seed truncation explicit

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The nvme_user_io.slba field is 64 bits wide. That value is copied into the
32-bit bio_integrity_payload.bip_iter.bi_sector field. Make that truncation
explicit to avoid that Coverity complains about implicit truncation. See
also Coverity ID 1056486 on http://scan.coverity.com/projects/linux.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Bart Van Assche 2018-10-10 08:08:19 -07:00 committed by Christoph Hellwig
parent 1c4665272c
commit 202359c007
1 changed files with 1 additions and 1 deletions
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2
drivers/nvme/host/core.c
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@ -1132,7 +1132,7 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
return nvme_submit_user_cmd(ns->queue, &c,
(void __user *)(uintptr_t)io.addr, length,
metadata, meta_len, io.slba, NULL, 0);
metadata, meta_len, lower_32_bits(io.slba), NULL, 0);
}
static u32 nvme_known_admin_effects(u8 opcode)