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From: Jason Gunthorpe <jgg@ziepe.ca>
To: "Wan, Kaike" <kaike.wan@intel.com>
Cc: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>,
	"dledford@redhat.com" <dledford@redhat.com>,
	"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
	"stable@vger.kernel.org" <stable@vger.kernel.org>
Subject: Re: [PATCH for-rc 1/4] IB/hfi1: Call xa_destroy before freeing dummy_netdev
Date: Thu, 1 Apr 2021 10:48:14 -0300
Message-ID: <20210401134814.GG2710221@ziepe.ca> (raw)
In-Reply-To: <DM6PR11MB330637BAEB1AA8D7FDC56225F47B9@DM6PR11MB3306.namprd11.prod.outlook.com>

On Thu, Apr 01, 2021 at 01:42:57PM +0000, Wan, Kaike wrote:

> Shouldn't xa_destroy() always be called during cleanup, just in case
> that something is left behind?

No.

> Check the following:

Since I didn't write a WARN_ON(!xa_empty()) it means they were not
made empty.

IIRC there is some special stuff there with XA_ZERO_ENTRY that causes
it.

Jason

  reply index

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-29 13:48 [PATCH for-rc 0/4] hfi fixes dennis.dalessandro
2021-03-29 13:48 ` [PATCH for-rc 1/4] IB/hfi1: Call xa_destroy before freeing dummy_netdev dennis.dalessandro
2021-03-29 14:09   ` Jason Gunthorpe
2021-03-31 19:36     ` Dennis Dalessandro
2021-04-01  6:06       ` Greg KH
2021-04-01 14:02         ` Dennis Dalessandro
2021-04-01 14:12           ` Greg KH
2021-04-01 15:00             ` Dennis Dalessandro
2021-04-01 12:33       ` Jason Gunthorpe
2021-04-01 13:42         ` Wan, Kaike
2021-04-01 13:48           ` Jason Gunthorpe [this message]
2021-03-29 13:48 ` [PATCH for-rc 2/4] IB/hfi1: Call xa_destroy before unloading the module dennis.dalessandro
2021-03-29 14:11   ` Jason Gunthorpe
2021-04-08 13:30     ` Dennis Dalessandro
2021-03-29 13:48 ` [PATCH for-rc 3/4] IB/hfi1: Fix probe time panic when AIP is enabled with a buggy BIOS dennis.dalessandro
2021-04-07 23:04   ` Jason Gunthorpe
2021-03-29 13:48 ` [PATCH for-rc 4/4] IB/hfi1: Fix regressions in security fix dennis.dalessandro
2021-03-29 18:36   ` Ira Weiny
2021-04-07 18:33     ` Jason Gunthorpe
2021-04-07 20:20       ` Dennis Dalessandro
2021-04-13 22:55   ` Jason Gunthorpe

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