From 77f79ac8de0f490fca4f0a5f2e1e38eeee191f05 Mon Sep 17 00:00:00 2001 From: Philipp Stanner Date: Thu, 13 Jun 2024 13:50:20 +0200 Subject: [PATCH] PCI: Remove struct pci_devres.enabled status bit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The struct pci_devres has a separate boolean to track whether a device is enabled. That, however, can easily be tracked in an agnostic manner through the function pci_is_enabled(). Using it allows for simplifying the PCI devres implementation. Replace the separate 'enabled' status bit from struct pci_devres with calls to pci_is_enabled() at the appropriate places. Link: https://lore.kernel.org/r/20240613115032.29098-8-pstanner@redhat.com Signed-off-by: Philipp Stanner Signed-off-by: Krzysztof Wilczyński Signed-off-by: Bjorn Helgaas --- drivers/pci/devres.c | 11 ++++------- drivers/pci/pci.c | 6 ------ drivers/pci/pci.h | 1 - 3 files changed, 4 insertions(+), 14 deletions(-) diff --git a/drivers/pci/devres.c b/drivers/pci/devres.c index e4c37fcb12df..4ac662efc6ac 100644 --- a/drivers/pci/devres.c +++ b/drivers/pci/devres.c @@ -407,7 +407,7 @@ static void pcim_release(struct device *gendev, void *res) if (this->restore_intx) pci_intx(dev, this->orig_intx); - if (this->enabled && !this->pinned) + if (pci_is_enabled(dev) && !this->pinned) pci_disable_device(dev); } @@ -450,14 +450,11 @@ int pcim_enable_device(struct pci_dev *pdev) dr = get_pci_dr(pdev); if (unlikely(!dr)) return -ENOMEM; - if (dr->enabled) - return 0; rc = pci_enable_device(pdev); - if (!rc) { + if (!rc) pdev->is_managed = 1; - dr->enabled = 1; - } + return rc; } EXPORT_SYMBOL(pcim_enable_device); @@ -475,7 +472,7 @@ void pcim_pin_device(struct pci_dev *pdev) struct pci_devres *dr; dr = find_pci_dr(pdev); - WARN_ON(!dr || !dr->enabled); + WARN_ON(!dr || !pci_is_enabled(pdev)); if (dr) dr->pinned = 1; } diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 1e258c98df1a..a0fad5990f03 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -2218,12 +2218,6 @@ void pci_disable_enabled_device(struct pci_dev *dev) */ void pci_disable_device(struct pci_dev *dev) { - struct pci_devres *dr; - - dr = find_pci_dr(dev); - if (dr) - dr->enabled = 0; - dev_WARN_ONCE(&dev->dev, atomic_read(&dev->enable_cnt) <= 0, "disabling already-disabled device"); diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 37894852c2a0..4f220bbbd4ae 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -821,7 +821,6 @@ static inline pci_power_t mid_pci_get_power_state(struct pci_dev *pdev) * then remove them from here. */ struct pci_devres { - unsigned int enabled:1; unsigned int pinned:1; unsigned int orig_intx:1; unsigned int restore_intx:1;