[PATCH 2/2][next] scsi: qla2xxx: Use struct_size() in code related to struct ct_sns_gpnft_rsp

Gustavo A. R. Silva
2022-11-19T00:46:18Z

Prefer struct_size() over open-coded versions of idiom:

sizeof(struct-with-flex-array) + sizeof(typeof-flex-array-elements) * count

where count is the max number of items the flexible array is supposed to
contain.

Link: https://github.com/KSPP/linux/issues/160
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---
drivers/scsi/qla2xxx/qla_gs.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c
index 69d3bc795f90..27e1df56b0fb 100644
--- a/drivers/scsi/qla2xxx/qla_gs.c
+++ b/drivers/scsi/qla2xxx/qla_gs.c
@@ -4072,9 +4072,8 @@ int qla24xx_async_gpnft(scsi_qla_host_t *vha, u8 fc4_type, srb_t *sp)
}
sp->u.iocb_cmd.u.ctarg.req_size = GPN_FT_REQ_SIZE;

- rspsz = sizeof(struct ct_sns_gpnft_rsp) +
- (vha->hw->max_fibre_devices *
- sizeof(struct ct_sns_gpn_ft_data));
+ rspsz = struct_size((struct ct_sns_gpnft_rsp *)0, entries,
+ vha->hw->max_fibre_devices);

sp->u.iocb_cmd.u.ctarg.rsp = dma_alloc_coherent(&vha->hw->pdev->dev,
rspsz,
--
2.34.1