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[149.14.88.27]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-381ed99aa18sm18023528f8f.61.2024.11.13.04.42.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Nov 2024 04:42:43 -0800 (PST) From: Philipp Stanner To: Damien Le Moal , Niklas Cassel , Basavaraj Natikar , Jiri Kosina , Benjamin Tissoires , Arnd Bergmann , Greg Kroah-Hartman , Alex Dubov , Sudarsana Kalluru , Manish Chopra , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rasesh Mody , GR-Linux-NIC-Dev@marvell.com, Igor Mitsyanko , Sergey Matyukevich , Kalle Valo , Sanjay R Mehta , Shyam Sundar S K , Jon Mason , Dave Jiang , Allen Hubbe , Bjorn Helgaas , Alex Williamson , Juergen Gross , Stefano Stabellini , Oleksandr Tyshchenko , Philipp Stanner , Mario Limonciello , Chen Ni , Ricky Wu , Al Viro , Breno Leitao , Kevin Tian , Thomas Gleixner , Mostafa Saleh , Andy Shevchenko , Jason Gunthorpe , Yi Liu , Kunwu Chan , Ankit Agrawal , Christian Brauner , Reinette Chatre , Eric Auger , Ye Bin Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, ntb@lists.linux.dev, linux-pci@vger.kernel.org, kvm@vger.kernel.org, xen-devel@lists.xenproject.org Subject: [PATCH v2 06/11] vfio/pci: Use never-managed version of pci_intx() Date: Wed, 13 Nov 2024 13:41:54 +0100 Message-ID: <20241113124158.22863-8-pstanner@redhat.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241113124158.22863-2-pstanner@redhat.com> References: <20241113124158.22863-2-pstanner@redhat.com> Precedence: bulk X-Mailing-List: ntb@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: HGstaHgCqA9IqYwLwd8-ZYenDghLZi6UePElQWUBgVU_1731501764 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true pci_intx() is a hybrid function which can sometimes be managed through devres. To remove this hybrid nature from pci_intx(), it is necessary to port users to either an always-managed or a never-managed version. vfio enables its PCI-Device with pci_enable_device(). Thus, it needs the never-managed version. Replace pci_intx() with pci_intx_unmanaged(). Signed-off-by: Philipp Stanner --- drivers/vfio/pci/vfio_pci_core.c | 2 +- drivers/vfio/pci/vfio_pci_intrs.c | 10 +++++----- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c index 1ab58da9f38a..90240c8d51aa 100644 --- a/drivers/vfio/pci/vfio_pci_core.c +++ b/drivers/vfio/pci/vfio_pci_core.c @@ -498,7 +498,7 @@ int vfio_pci_core_enable(struct vfio_pci_core_device *vdev) if (vfio_pci_nointx(pdev)) { pci_info(pdev, "Masking broken INTx support\n"); vdev->nointx = true; - pci_intx(pdev, 0); + pci_intx_unmanaged(pdev, 0); } else vdev->pci_2_3 = pci_intx_mask_supported(pdev); } diff --git a/drivers/vfio/pci/vfio_pci_intrs.c b/drivers/vfio/pci/vfio_pci_intrs.c index 8382c5834335..40abb0b937a2 100644 --- a/drivers/vfio/pci/vfio_pci_intrs.c +++ b/drivers/vfio/pci/vfio_pci_intrs.c @@ -118,7 +118,7 @@ static bool __vfio_pci_intx_mask(struct vfio_pci_core_device *vdev) */ if (unlikely(!is_intx(vdev))) { if (vdev->pci_2_3) - pci_intx(pdev, 0); + pci_intx_unmanaged(pdev, 0); goto out_unlock; } @@ -132,7 +132,7 @@ static bool __vfio_pci_intx_mask(struct vfio_pci_core_device *vdev) * mask, not just when something is pending. */ if (vdev->pci_2_3) - pci_intx(pdev, 0); + pci_intx_unmanaged(pdev, 0); else disable_irq_nosync(pdev->irq); @@ -178,7 +178,7 @@ static int vfio_pci_intx_unmask_handler(void *opaque, void *data) */ if (unlikely(!is_intx(vdev))) { if (vdev->pci_2_3) - pci_intx(pdev, 1); + pci_intx_unmanaged(pdev, 1); goto out_unlock; } @@ -296,7 +296,7 @@ static int vfio_intx_enable(struct vfio_pci_core_device *vdev, */ ctx->masked = vdev->virq_disabled; if (vdev->pci_2_3) { - pci_intx(pdev, !ctx->masked); + pci_intx_unmanaged(pdev, !ctx->masked); irqflags = IRQF_SHARED; } else { irqflags = ctx->masked ? IRQF_NO_AUTOEN : 0; @@ -569,7 +569,7 @@ static void vfio_msi_disable(struct vfio_pci_core_device *vdev, bool msix) * via their shutdown paths. Restore for NoINTx devices. */ if (vdev->nointx) - pci_intx(pdev, 0); + pci_intx_unmanaged(pdev, 0); vdev->irq_type = VFIO_PCI_NUM_IRQS; } -- 2.47.0