scsi: ibmvscsis: Silence -Warray-bounds warning

Instead of doing a cast to storage that is too small, add a union for the
high 64 bits. Silences the warnings under -Warray-bounds:

drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c: In function 'ibmvscsis_send_messages':
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:1934:44: error: array subscript 'struct viosrp_crq[0]' is partly outside array bounds of 'u64[1]' {aka 'long long unsigned int[1]'} [-Werror=array-bounds]
 1934 |                                         crq->valid = VALID_CMD_RESP_EL;
      |                                            ^~
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:1875:13: note: while referencing 'msg_hi'
 1875 |         u64 msg_hi = 0;
      |             ^~~~~~

There is no change to the resulting binary instructions.

Link: https://lore.kernel.org/lkml/[email protected]
Link: https://lore.kernel.org/r/[email protected]
Cc: Michael Cyr <[email protected]>
Cc: "James E.J. Bottomley" <[email protected]>
Cc: "Martin K. Petersen" <[email protected]>
Cc: Tyrel Datwyler <[email protected]>
Cc: [email protected]
Cc: [email protected]
Reported-by: Stephen Rothwell <[email protected]>
Reviewed-by: Tyrel Datwyler <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

0 files changed, 0 insertions, 0 deletions