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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: DWaOtMmHBPtuC5dmXcTKaAI5muCInDFUnhz0dGGjcQvETA+2qdJSEJ0oQCPAxbxj5zpn16MntSkNNZSSI016QGAycwf8E+eiTNkX5910nkjiMif9Rpe+8aAXEpvtK7S5sq6IePOuCTLBFrd9t0HUcNoYdotyyRHxaHq6c0PYhXCT4E10nYiwlLNGORHKW+kUH0kY8aUzOf475XTsm1X234IZrUuAl1hf5w64Lpr/Lj1mzfNSV7N4zHm8DkLMOffFBlc/OkoFGWZOhb1os3bNrAfVrLa37Ymrx0z/6NYjEHyOGfuxo7kxKJ3vcxXWU8RqbwpiVuREunxWSr18TcQb/G3UuHT5VR1bMsUefMvTJe8zQ5KFuxWQVk+oMZIvFWMOS+Al7N7K5tYCDr3HKdW75WPiNVrQ/CAsJalEuEFVcOrXm4khR6reztMmZVFxF5OL X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Sep 2026 19:07:22.7662 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4570c9d2-9c9f-4516-5da7-08df1a6f1071 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN2PEPF000044A4.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PR12MB8896 From: Peter Colberg Add a method to check if a PCI device is a Physical Function (PF). zhiw: Keep this role check private to the PCI SR-IOV implementation instead of extending the public `Device` API. Add a dead-code expectation because this standalone API commit has no in-tree caller. Reviewed-by: Joel Fernandes Signed-off-by: Peter Colberg Signed-off-by: Zhi Wang --- rust/kernel/pci.rs | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/rust/kernel/pci.rs b/rust/kernel/pci.rs index b04f6aff6c34..ca009775bd61 100644 --- a/rust/kernel/pci.rs +++ b/rust/kernel/pci.rs @@ -433,6 +433,14 @@ pub fn resource_start(&self, bar: u32) -> Result { Ok(unsafe { bindings::pci_resource_start(self.as_raw(), bar.try_into()?) }) } + /// Returns `true` if this device is a Physical Function (PF). + #[inline] + #[expect(dead_code)] + pub(crate) fn is_physfn(&self) -> bool { + // SAFETY: `self.as_raw` is a valid pointer to a `struct pci_dev`. + unsafe { (*self.as_raw()).is_physfn() != 0 } + } + /// Returns `true` if this device is a Virtual Function (VF). #[inline] #[expect(dead_code)] -- 2.53.0