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From: Jason Gunthorpe <jgg@ziepe.ca>
To: Pranjal Shrivastava <praan@google.com>
Cc: Baolu Lu <baolu.lu@linux.intel.com>,
	Will Deacon <will@kernel.org>,
	Kunkun Jiang <jiangkunkun@huawei.com>,
	Robin Murphy <robin.murphy@arm.com>,
	Joerg Roedel <joro@8bytes.org>,
	Nicolin Chen <nicolinc@nvidia.com>,
	Michael Shavit <mshavit@google.com>,
	Mostafa Saleh <smostafa@google.com>,
	"moderated list:ARM SMMU DRIVERS"
	<linux-arm-kernel@lists.infradead.org>,
	iommu@lists.linux.dev, linux-kernel@vger.kernel.org,
	wanghaibin.wang@huawei.com, yuzenghui@huawei.com,
	tangnianyao@huawei.com
Subject: Re: [bug report] iommu/arm-smmu-v3: Event cannot be printed in some scenarios
Date: Tue, 13 Aug 2024 14:56:58 -0300	[thread overview]
Message-ID: <20240813175658.GO1985367@ziepe.ca> (raw)
In-Reply-To: <ZrTNGepJXbmfuKBK@google.com>

On Thu, Aug 08, 2024 at 01:50:17PM +0000, Pranjal Shrivastava wrote:
> 
> Kunkun -- Please try this diff and check if it fixes the problem?

This looks OK to me, you should send it as a proper patch..

>  	if (!(fault->prm.flags & IOMMU_FAULT_PAGE_REQUEST_LAST_PAGE)) {
> -		report_partial_fault(iopf_param, fault);
> +		ret = report_partial_fault(iopf_param, fault);
>  		iopf_put_dev_fault_param(iopf_param);
>  		/* A request that is not the last does not need to be ack'd */
> +
> +		if (ret)
> +			goto err_bad_iopf;
>  	}

rebase it on -rc3 and there will be a return line added here
too.. Maybe you don't want the goto in that cast

Jason


  reply	other threads:[~2024-08-13 17:57 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-24  1:42 [bug report] iommu/arm-smmu-v3: Event cannot be printed in some scenarios Kunkun Jiang
2024-07-24  9:15 ` Mostafa Saleh
2024-07-24  9:22 ` Kunkun Jiang
2024-07-24 10:24   ` Will Deacon
2024-07-24 13:03     ` Jason Gunthorpe
2024-07-25  7:35       ` Tian, Kevin
2024-07-25 12:58         ` Jason Gunthorpe
2024-07-26  0:04           ` Tian, Kevin
2024-07-29  5:29     ` Baolu Lu
2024-08-02 14:38       ` Pranjal Shrivastava
2024-08-05 12:13         ` Kunkun Jiang
2024-08-05 12:30           ` Will Deacon
     [not found]             ` <ZrDwolC6oXN44coq@google.com>
2024-08-06  0:09               ` Baolu Lu
2024-08-06 12:49               ` Jason Gunthorpe
2024-08-06 15:58                 ` Pranjal Shrivastava
2024-08-07  5:35                   ` Baolu Lu
2024-08-08 13:50                     ` Pranjal Shrivastava
2024-08-13 17:56                       ` Jason Gunthorpe [this message]
2024-08-14  9:02                         ` Pranjal Shrivastava

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