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SubjectRe: [PATCH v2] drivers: net: xgene: Remove acpi_has_method() calls
On Tue, Jul 23, 2019 at 1:59 PM Kelsey Skunberg
<skunberg.kelsey@gmail.com> wrote:
>
> acpi_evaluate_object will already return an error if the needed method
> does not exist. Remove unnecessary acpi_has_method() calls and check the
> returned acpi_status for failure instead.

> diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
> index 6453fc2ebb1f..5d637b46b2bf 100644
> --- a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
> +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
> @@ -437,6 +437,7 @@ static void xgene_sgmac_tx_disable(struct xgene_enet_pdata *p)
> static int xgene_enet_reset(struct xgene_enet_pdata *p)
> {
> struct device *dev = &p->pdev->dev;
> + acpi_status status;
>
> if (!xgene_ring_mgr_init(p))
> return -ENODEV;
> @@ -460,14 +461,13 @@ static int xgene_enet_reset(struct xgene_enet_pdata *p)
> }
> } else {
> #ifdef CONFIG_ACPI
> - if (acpi_has_method(ACPI_HANDLE(&p->pdev->dev), "_RST"))
> - acpi_evaluate_object(ACPI_HANDLE(&p->pdev->dev),
> - "_RST", NULL, NULL);
> - else if (acpi_has_method(ACPI_HANDLE(&p->pdev->dev), "_INI"))
> + status = acpi_evaluate_object(ACPI_HANDLE(&p->pdev->dev),
> + "_RST", NULL, NULL);
> + if (ACPI_FAILURE(status)) {
> acpi_evaluate_object(ACPI_HANDLE(&p->pdev->dev),
> "_INI", NULL, NULL);
> + }
> #endif
> - }

Oops, I don't think you intended to remove that brace.

If you haven't found it already, CONFIG_COMPILE_TEST is useful for
building things that wouldn't normally be buildable on your arch.

> if (!p->port_id) {
> xgene_enet_ecc_init(p);

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