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From: "Roger Pau Monné" <roger.pau@citrix.com>
To: "Chen, Jiqian" <Jiqian.Chen@amd.com>
Cc: "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
	"Huang, Ray" <Ray.Huang@amd.com>, Jan Beulich <jbeulich@suse.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>
Subject: Re: [PATCH v2 8/8] vpci/msix: Add function to clean MSIX resources
Date: Wed, 16 Apr 2025 09:54:30 +0200	[thread overview]
Message-ID: <Z_9iNjQxTy9RcDq0@macbook.lan> (raw)
In-Reply-To: <BL1PR12MB5849577B78D50821733B6D6BE7BD2@BL1PR12MB5849.namprd12.prod.outlook.com>

On Wed, Apr 16, 2025 at 06:20:50AM +0000, Chen, Jiqian wrote:
> On 2025/4/15 21:45, Roger Pau Monné wrote:
> > On Wed, Apr 09, 2025 at 02:45:28PM +0800, Jiqian Chen wrote: 
> >> +
> >> +    for ( unsigned int i = 0; i < ARRAY_SIZE(vpci->msix->table); i++ )
> >> +        if ( vpci->msix->table[i] )
> >> +            iounmap(vpci->msix->table[i]);
> > 
> > The MSI-X init function never maps tables, so the code here (given
> > it's current usage) will also never unmap anything.  However I would
> > also like to use this code for vPCI deassing, at which point the logic
> > will get used.
> So, I still need to keep this part, right?

Yes, I guess leave it for now, we can always rip it later.  I would
like to see how doing the cleanup in the caller in case of failure
looks.

Then we can likely extend such cleanup to be done in the deassign case
also.

Thanks, Roger.


  reply	other threads:[~2025-04-16  7:54 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-09  6:45 [PATCH v2 0/8] Support hiding capability when its initialization fails Jiqian Chen
2025-04-09  6:45 ` [PATCH v2 1/8] driver/pci: Get next capability without passing caps Jiqian Chen
2025-04-10 12:34   ` Jan Beulich
2025-04-11  2:51     ` Chen, Jiqian
2025-04-11  8:00       ` Jan Beulich
2025-04-11  8:08         ` Chen, Jiqian
2025-04-09  6:45 ` [PATCH v2 2/8] vpci/header: Emulate legacy capability list for host Jiqian Chen
2025-04-10 12:40   ` Jan Beulich
2025-04-11  2:54     ` Chen, Jiqian
2025-04-11  8:01       ` Jan Beulich
2025-04-15  9:25   ` Roger Pau Monné
2025-04-15 10:07     ` Chen, Jiqian
2025-04-15 10:08       ` Jan Beulich
2025-04-15 10:23         ` Chen, Jiqian
2025-04-15 10:50       ` Roger Pau Monné
2025-04-15 10:10   ` Roger Pau Monné
2025-04-16  2:51     ` Chen, Jiqian
2025-04-16  7:32       ` Roger Pau Monné
2025-04-09  6:45 ` [PATCH v2 3/8] vpci/header: Emulate extended " Jiqian Chen
2025-04-15  9:42   ` Roger Pau Monné
2025-04-15 10:11     ` Chen, Jiqian
2025-04-15  9:49   ` Jan Beulich
2025-04-15 10:18     ` Chen, Jiqian
2025-04-15 10:20       ` Jan Beulich
2025-04-09  6:45 ` [PATCH v2 4/8] vpci: Hide capability when it fails to initialize Jiqian Chen
2025-04-15 10:47   ` Roger Pau Monné
2025-04-16  6:07     ` Chen, Jiqian
2025-04-09  6:45 ` [PATCH v2 5/8] vpci: Refactor vpci_remove_register to remove matched registers Jiqian Chen
2025-04-15 11:06   ` Roger Pau Monné
2025-04-09  6:45 ` [PATCH v2 6/8] vpci/rebar: Remove registers when init_rebar() fails Jiqian Chen
2025-04-15 12:59   ` Roger Pau Monné
2025-04-09  6:45 ` [PATCH v2 7/8] vpci/msi: Free MSI resources when init_msi() fails Jiqian Chen
2025-04-15 13:29   ` Roger Pau Monné
2025-04-16  6:16     ` Chen, Jiqian
2025-04-16  7:47       ` Roger Pau Monné
2025-04-09  6:45 ` [PATCH v2 8/8] vpci/msix: Add function to clean MSIX resources Jiqian Chen
2025-04-15 13:45   ` Roger Pau Monné
2025-04-16  6:20     ` Chen, Jiqian
2025-04-16  7:54       ` Roger Pau Monné [this message]
2025-04-17  7:34   ` Jan Beulich
2025-04-17  7:38     ` Chen, Jiqian

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