netdev - Re: [PATCH V5 net-next 04/11] net: hibmcge: Add interrupt supported in this module

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Message-ID: <6c7d1538-5a94-466a-bd4b-022b5570b287@huawei.com>
Date: Thu, 29 Aug 2024 09:54:00 +0800
From: Jijie Shao <shaojijie@...wei.com>
To: Jakub Kicinski <kuba@...nel.org>
CC: <shaojijie@...wei.com>, <davem@...emloft.net>, <edumazet@...gle.com>,
	<pabeni@...hat.com>, <shenjian15@...wei.com>, <wangpeiyang1@...wei.com>,
	<liuyonglong@...wei.com>, <chenhao418@...wei.com>, <sudongming1@...wei.com>,
	<xujunsheng@...wei.com>, <shiyongbang@...wei.com>, <libaihan@...wei.com>,
	<andrew@...n.ch>, <jdamato@...tly.com>, <horms@...nel.org>,
	<jonathan.cameron@...wei.com>, <shameerali.kolothum.thodi@...wei.com>,
	<salil.mehta@...wei.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V5 net-next 04/11] net: hibmcge: Add interrupt supported
 in this module


on 2024/8/29 9:35, Jakub Kicinski wrote:
> On Tue, 27 Aug 2024 21:14:48 +0800 Jijie Shao wrote:
>> +	ret = pci_alloc_irq_vectors(priv->pdev, HBG_VECTOR_NUM, HBG_VECTOR_NUM,
>> +				    PCI_IRQ_MSI | PCI_IRQ_MSIX);
> These are not devm_ -managed, don't you have to free them?
> On remove and errors during probe?
>
Jonathan Cameron told me:
	I have used pcim_enable(),  so, the irq vectors become device managed.
Look for where those paths call pci_setup_msi_context() / pcim_setup_msi_release()

So there should be no need to free the vectors on remove()

	Thanks，
	Jijie Shao