From 512a365368c7af689c19e5a45d50d26cfe8c47cb Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Tue, 6 Jun 2023 17:22:21 -0600 Subject: [PATCH] scsi: qla2xxx: Replace one-element array with DECLARE_FLEX_ARRAY() helper One-element arrays as fake flex arrays are deprecated and we are moving towards adopting C99 flexible-array members, instead. So, replace one-element array declaration in struct ct_sns_gpnft_rsp, which is ultimately being used inside a union: drivers/scsi/qla2xxx/qla_def.h: 3240 struct ct_sns_gpnft_pkt { 3241 union { 3242 struct ct_sns_req req; 3243 struct ct_sns_gpnft_rsp rsp; 3244 } p; 3245 }; Refactor the rest of the code, accordingly. This issue was found with the help of Coccinelle. Link: https://github.com/KSPP/linux/issues/245 Link: https://github.com/KSPP/linux/issues/193 Reviewed-by: Kees Cook Signed-off-by: Gustavo A. R. Silva Link: https://lore.kernel.org/r/ZH+/rZ1R1cBjIxjS@work Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_def.h | 4 ++-- drivers/scsi/qla2xxx/qla_gs.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index dfee3b4..c262cfc 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -3174,12 +3174,12 @@ struct ct_sns_gpnft_rsp { uint8_t vendor_unique; }; /* Assume the largest number of targets for the union */ - struct ct_sns_gpn_ft_data { + DECLARE_FLEX_ARRAY(struct ct_sns_gpn_ft_data { u8 control_byte; u8 port_id[3]; u32 reserved; u8 port_name[8]; - } entries[1]; + }, entries); }; /* CT command response */ diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c index 4738f89..1cf9d20 100644 --- a/drivers/scsi/qla2xxx/qla_gs.c +++ b/drivers/scsi/qla2xxx/qla_gs.c @@ -3776,8 +3776,8 @@ 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 - 1) * - sizeof(struct ct_sns_gpn_ft_data)); + vha->hw->max_fibre_devices * + sizeof(struct ct_sns_gpn_ft_data); sp->u.iocb_cmd.u.ctarg.rsp = dma_alloc_coherent(&vha->hw->pdev->dev, rspsz, -- 2.7.4