From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 53E792F3631; Fri, 22 Aug 2025 09:42:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755855766; cv=none; b=UO34IfAYn8ov5om8b/TV81X7RgjZXWcGwVfbUvR5hocKvvZAcmsnGrXXc+hbvcvCOvDSWgBcMfZXXSydlm0uXgc5yIAotRZzkI974EBgqgIsttfAPhhB1nb1+ApY9Ra5PgtjXprClzXesou5KGf0uRIqTPZEpQ+RzJ75YGHCZzk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755855766; c=relaxed/simple; bh=AjSIPvmX+WBUEEOhAOa299WYAwKCct5GlSBzXMXwYF0=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=DN4FQOeNBfXRSya+ponH56IuPXW9Xj0xcq0TxWeVXrxbSuodLrBXo3+Skx+tSl430nbjmr5zuBvaqRYal+otdFPjtcWXnrcY+QDZC2XOIXxLgiYlaco0qKnREnSbSp89/nPatkShavfJUCgWPvOTdPdUynIsQxhfWZd5M0OQ9+k= ARC-Authentication-Results:i=1; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 22/08/2025 11:08, Jack Ping CHNG wrote: > Add build infrastructure for MxL network driver. > Ethernet driver to initialize and create network devices. Please wrap commit message according to Linux coding style / submission process (neither too early nor over the limit): https://elixir.bootlin.com/linux/v6.4-rc1/source/Documentation/process/submitting-patches.rst#L597 What is a "build support for a driver/soc"? Confusing. ... > + */ > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > + > +#define ETH_TX_TIMEOUT (10 * HZ) > +#define MXL_NUM_TX_RING 8 > +#define MXL_NUM_RX_RING 8 > +#define MXL_NUM_PORT 2 > + > +static const char * const clk_names = "ethif"; Drop, pretty useless. ... > + > +static void mxl_eth_cleanup(struct mxl_eth_drvdata *pdata) > +{ > + int i; > + > + for (i = 0; i < MXL_NUM_PORT && pdata->ndevs[i]; i++) { > + unregister_netdev(pdata->ndevs[i]); > + pdata->ndevs[i] = NULL; > + } > + > + if (!IS_ERR(pdata->clks)) Hm? Why? > + clk_disable_unprepare(pdata->clks); > +} > + > +static int mxl_eth_probe(struct platform_device *pdev) > +{ > + struct mxl_eth_drvdata *pdata; > + struct reset_control *rst; > + struct net_device *ndev; > + struct device_node *np; > + int ret, i; > + > + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + return -ENOMEM; > + > + pdata->clks = devm_clk_get(&pdev->dev, clk_names); > + if (IS_ERR(pdata->clks)) { > + dev_err(&pdev->dev, "failed to get %s\n", clk_names); You are sending us some 10 year old coding style. This is supposed to be dev_err_probe and devm_get_clk_enabled. I think my second talk for OSSE 25 about static analyzers is also suitable... > + return PTR_ERR(pdata->clks); > + } > + > + ret = clk_prepare_enable(pdata->clks); > + if (ret) { > + dev_err(&pdev->dev, "failed to enable %s\n", clk_names); > + return ret; > + } > + > + rst = devm_reset_control_get_optional(&pdev->dev, NULL); > + if (IS_ERR(rst)) { > + dev_err(&pdev->dev, > + "failed to get optional reset control: %ld\n", > + PTR_ERR(rst)); > + ret = PTR_ERR(rst); > + goto err_cleanup; > + } > + > + if (rst) { > + ret = reset_control_assert(rst); > + if (ret) > + goto err_cleanup; > + > + udelay(1); > + > + ret = reset_control_deassert(rst); > + if (ret) > + goto err_cleanup; > + } > + > + platform_set_drvdata(pdev, pdata); > + > + i = 0; > + for_each_available_child_of_node(pdev->dev.of_node, np) { > + if (!of_device_is_compatible(np, "mxl,eth-mac")) > + continue; > + > + if (!of_device_is_available(np)) Redundant. Best regards, Krzysztof