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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BN9PR11MB5276.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 58d513d9-4604-4783-82c2-08da5a72a3b1 X-MS-Exchange-CrossTenant-originalarrivaltime: 30 Jun 2022 08:29:24.5125 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: ROM0VUNnYH+fLympc9ZX6c/QIQoqA21cnItFHf/7u0tnan2hhH12EiIWQbdWl1jCPEF4mbfBoDguLPQRVliAcw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR11MB3413 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > From: Lu Baolu > Sent: Saturday, June 25, 2022 8:52 PM >=20 > In the IOMMU hot-add path, there's a need to check whether an IOMMU > has been probed. Instead of checking the IOMMU pointer in the global > list, it's better to allocate a flag bit in iommu->flags for this > purpose. Sorry I didn't get the point of original check. This is the hotplug path hence the caller of this function should already figure out it's a new iommu before reaching this point? 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" > From: Lu Baolu > Sent: Saturday, June 25, 2022 8:52 PM > > In the IOMMU hot-add path, there's a need to check whether an IOMMU > has been probed. Instead of checking the IOMMU pointer in the global > list, it's better to allocate a flag bit in iommu->flags for this > purpose. Sorry I didn't get the point of original check. This is the hotplug path hence the caller of this function should already figure out it's a new iommu before reaching this point? _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu