netdev - Re: [PATCH treewide v2 0/9] phy: Add devm_of_phy_optional

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Date:   Thu, 2 Feb 2023 15:57:00 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Vinod Koul <vkoul@...nel.org>
Cc:     Jonathan Corbet <corbet@....net>,
        Madalin Bucur <madalin.bucur@....com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>,
        UNGLinuxDriver@...rochip.com,
        Thierry Reding <thierry.reding@...il.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Siddharth Vadapalli <s-vadapalli@...com>,
        Russell King <linux@...linux.org.uk>,
        linux-phy@...ts.infradead.org, linux-doc@...r.kernel.org,
        netdev@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-pci@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org,
        Marc Kleine-Budde <mkl@...gutronix.de>
Subject: Re: [PATCH treewide v2 0/9] phy: Add devm_of_phy_optional_get() helper

Hi Vinod,

On Tue, Jan 24, 2023 at 7:37 PM Geert Uytterhoeven
<geert+renesas@...der.be> wrote:
> While there exist several optional_get() PHY helper functions, there is
> no optional variant of devm_of_phy_get(), leading to several drivers
> implementing this theirselves, sometimes in buggy ways.
>
> Hence this series, after two cleanup patches, introduces a
> devm_of_phy_optional_get() helper(), and converts existing users of
> devm_of_phy_get() where appropriate.
>
> Changes compared to v1[1]:
>   - Incorporate "[PATCH v2 1/9] phy: Remove unused phy_optional_get()",
>     as it touches the same documentation,
>   - New patch "[PATCH v2 2/9] doc: phy: Document devm_of_phy_get()",
>   - Print an error message in case of failure, as requested by RobH,
>   - Update Documentation,
>   - Clarify removed checks for -ENODEV and -ENOSYS,
>   - Remove error printing in case of real failures from callers,
>   - Rebase am65-cpsw change on top of commit 854617f52ab42418 ("net:
>     ethernet: ti: am65-cpsw: Handle -EPROBE_DEFER for Serdes PHY") in
>     net-next (next-20230123 and later),
>   - Add Reviewed-by, Acked-by.
>
> Most of this series been compile-tested only, but the new helper itself
> has been tested with a new user[2].

Are you happy with this?  This series (at least patch 3) is a dependency
for [2], and in [3] you said you could apply it and create an immutable
branch.

Thanks!

> [1] "[PATCH treewide 0/7] phy: Add devm_of_phy_optional_get() helper"
>     https://lore.kernel.org/r/cover.1674036164.git.geert+renesas@glider.be
> [2] "[PATCH 12/12] can: rcar_canfd: Add transceiver support"
>     https://lore.kernel.org/r/e825b50a843ffe40e33f34e4d858c07c1b2ff259.1674499048.git.geert+renesas@glider.be

[3] https://lore.kernel.org/all/Y8kmG+jB%2Fs7stebA@matsya

>
> Geert Uytterhoeven (9):
>   phy: Remove unused phy_optional_get()
>   doc: phy: Document devm_of_phy_get()
>   phy: Add devm_of_phy_optional_get() helper
>   net: fman: memac: Convert to devm_of_phy_optional_get()
>   net: lan966x: Convert to devm_of_phy_optional_get()
>   net: ethernet: ti: am65-cpsw: Convert to devm_of_phy_optional_get()
>   PCI: tegra: Convert to devm_of_phy_optional_get()
>   usb: host: ehci-exynos: Convert to devm_of_phy_optional_get()
>   usb: host: ohci-exynos: Convert to devm_of_phy_optional_get()

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds