nvme: quieten sparse warning in valid LBA size check

Currently building with C=1 generates the following warning:

  CC      drivers/nvme/host/core.o
  CHECK   drivers/nvme/host/core.c
drivers/nvme/host/core.c:2426:13: warning: unsigned value that used to be signed checked against zero?
drivers/nvme/host/core.c:2426:13: signed value source

This issue was introduced when using check_shl_overflow() to check for
invalid LBA size. Sparse is having trouble dealing with __bitwise __le64
conversion when passing to check_shl_overflow().

Resolve the issue by moving the check_shl_overflow() call to a separate
function, where types are not converted.

The id->lbaf[lbaf].ds < SECTOR_SHIFT check is dropped as
check_shl_overflow() is able to detect negative shifts.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>

0 files changed, 0 insertions, 0 deletions