The bit describing whether the PCI device is currently pinned is stored
in struct pci_devres. To clean up and simplify the PCI devres API, it's
better if this information is stored in struct pci_dev.
This will later permit simplifying pcim_enable_device().
Move the 'pinned' boolean bit to struct pci_dev.
Restructure bits in struct pci_dev so the pm / pme fields are next to
each other.
Signed-off-by: Philipp Stanner <pstanner@xxxxxxxxxx>
---
drivers/pci/devres.c | 14 ++++----------
drivers/pci/pci.h | 1 -
include/linux/pci.h | 3 ++-
3 files changed, 6 insertions(+), 12 deletions(-)
diff --git a/drivers/pci/devres.c b/drivers/pci/devres.c
index 643e3a94a1d6..84caa0034813 100644
--- a/drivers/pci/devres.c
+++ b/drivers/pci/devres.c
@@ -403,7 +403,7 @@ static void pcim_release(struct device *gendev, void *res)
if (this->restore_intx)
pci_intx(dev, this->orig_intx);
- if (pci_is_enabled(dev) && !this->pinned)
+ if (pci_is_enabled(dev) && !dev->pinned)
pci_disable_device(dev);
}
@@ -459,18 +459,12 @@ EXPORT_SYMBOL(pcim_enable_device);
* pcim_pin_device - Pin managed PCI device
* @pdev: PCI device to pin
*
- * Pin managed PCI device @pdev. Pinned device won't be disabled on
- * driver detach. @pdev must have been enabled with
- * pcim_enable_device().
+ * Pin managed PCI device @pdev. Pinned device won't be disabled on driver
+ * detach. @pdev must have been enabled with pcim_enable_device().
*/
void pcim_pin_device(struct pci_dev *pdev)
{
- struct pci_devres *dr;
-
- dr = find_pci_dr(pdev);
- WARN_ON(!dr || !pci_is_enabled(pdev));
- if (dr)
- dr->pinned = 1;
+ pdev->pinned = true;
}
EXPORT_SYMBOL(pcim_pin_device);
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index d7f00b43b098..6e02ba1b5947 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 pinned:1;
unsigned int orig_intx:1;
unsigned int restore_intx:1;
unsigned int mwi:1;
diff --git a/include/linux/pci.h b/include/linux/pci.h
index fb004fd4e889..0c19f0717899 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -367,10 +367,11 @@ struct pci_dev {
this is D0-D3, D0 being fully
functional, and D3 being off. */
u8 pm_cap; /* PM capability offset */
- unsigned int imm_ready:1; /* Supports Immediate Readiness */
unsigned int pme_support:5; /* Bitmask of states from which PME#
can be generated */
unsigned int pme_poll:1; /* Poll device's PME status bit */
+ unsigned int pinned:1; /* Whether this dev is pinned */
+ unsigned int imm_ready:1; /* Supports Immediate Readiness */
unsigned int d1_support:1; /* Low power state D1 is supported */
unsigned int d2_support:1; /* Low power state D2 is supported */
unsigned int no_d1d2:1; /* D1 and D2 are forbidden */
--
2.45.0
