Re: [PATCH v14 5/7] PCI: endpoint: pci-epf-vntb: replace hardcode 4 with sizeof(u32)

Manivannan Sadhasivam
2022-11-01T12:01:13Z

On Fri, Oct 28, 2022 at 11:57:01AM -0400, Frank Li wrote:
> From: Frank Li <frank.li@nxp.com>
>
> ntb span entry item size is sizeof(u32).
>

s/span/spad

> Signed-off-by: Frank Li <frank.li@nxp.com>

With that,

Acked-by: Manivannan Sadhasivam <mani@kernel.org>

Thanks,
Mani

> ---
> drivers/pci/endpoint/functions/pci-epf-vntb.c | 24 +++++++++----------
> 1 file changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c
> index ee66101cb5c4..54616281da9e 100644
> --- a/drivers/pci/endpoint/functions/pci-epf-vntb.c
> +++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c
> @@ -257,12 +257,12 @@ static void epf_ntb_cmd_handler(struct work_struct *work)
> ntb = container_of(work, struct epf_ntb, cmd_handler.work);
>
> for (i = 1; i < ntb->db_count; i++) {
> - if (readl(ntb->epf_db + i * 4)) {
> - if (readl(ntb->epf_db + i * 4))
> + if (readl(ntb->epf_db + i * sizeof(u32))) {
> + if (readl(ntb->epf_db + i * sizeof(u32)))
> ntb->db |= 1 << (i - 1);
>
> ntb_db_event(&ntb->ntb, i);
> - writel(0, ntb->epf_db + i * 4);
> + writel(0, ntb->epf_db + i * sizeof(u32));
> }
> }
>
> @@ -433,7 +433,7 @@ static int epf_ntb_config_spad_bar_alloc(struct epf_ntb *ntb)
> spad_count = ntb->spad_count;
>
> ctrl_size = sizeof(struct epf_ntb_ctrl);
> - spad_size = 2 * spad_count * 4;
> + spad_size = 2 * spad_count * sizeof(u32);
>
> if (!align) {
> ctrl_size = roundup_pow_of_two(ctrl_size);
> @@ -463,7 +463,7 @@ static int epf_ntb_config_spad_bar_alloc(struct epf_ntb *ntb)
> ctrl->num_mws = ntb->num_mws;
> ntb->spad_size = spad_size;
>
> - ctrl->db_entry_size = 4;
> + ctrl->db_entry_size = sizeof(u32);
>
> for (i = 0; i < ntb->db_count; i++) {
> ntb->reg->db_data[i] = 1 + i;
> @@ -535,7 +535,7 @@ static int epf_ntb_db_bar_init(struct epf_ntb *ntb)
> struct pci_epf_bar *epf_bar;
> void __iomem *mw_addr;
> enum pci_barno barno;
> - size_t size = 4 * ntb->db_count;
> + size_t size = sizeof(u32) * ntb->db_count;
>
> epc_features = pci_epc_get_features(ntb->epf->epc,
> ntb->epf->func_no,
> @@ -1121,11 +1121,11 @@ static int vntb_epf_link_enable(struct ntb_dev *ntb,
> static u32 vntb_epf_spad_read(struct ntb_dev *ndev, int idx)
> {
> struct epf_ntb *ntb = ntb_ndev(ndev);
> - int off = ntb->reg->spad_offset, ct = ntb->reg->spad_count * 4;
> + int off = ntb->reg->spad_offset, ct = ntb->reg->spad_count * sizeof(u32);
> u32 val;
> void __iomem *base = ntb->reg;
>
> - val = readl(base + off + ct + idx * 4);
> + val = readl(base + off + ct + idx * sizeof(u32));
> return val;
> }
>
> @@ -1133,10 +1133,10 @@ static int vntb_epf_spad_write(struct ntb_dev *ndev, int idx, u32 val)
> {
> struct epf_ntb *ntb = ntb_ndev(ndev);
> struct epf_ntb_ctrl *ctrl = ntb->reg;
> - int off = ctrl->spad_offset, ct = ctrl->spad_count * 4;
> + int off = ctrl->spad_offset, ct = ctrl->spad_count * sizeof(u32);
> void __iomem *base = ntb->reg;
>
> - writel(val, base + off + ct + idx * 4);
> + writel(val, base + off + ct + idx * sizeof(u32));
> return 0;
> }
>
> @@ -1148,7 +1148,7 @@ static u32 vntb_epf_peer_spad_read(struct ntb_dev *ndev, int pidx, int idx)
> void __iomem *base = ntb->reg;
> u32 val;
>
> - val = readl(base + off + idx * 4);
> + val = readl(base + off + idx * sizeof(u32));
> return val;
> }
>
> @@ -1159,7 +1159,7 @@ static int vntb_epf_peer_spad_write(struct ntb_dev *ndev, int pidx, int idx, u32
> int off = ctrl->spad_offset;
> void __iomem *base = ntb->reg;
>
> - writel(val, base + off + idx * 4);
> + writel(val, base + off + idx * sizeof(u32));
> return 0;
> }
>
> --
> 2.34.1
>

--
மணிவண்ணன் சதாசிவம்