linux-kernel - [PATCH 1/9] PCI: Make pcim_release

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Message-ID: <20240819165148.58201-3-pstanner@redhat.com>
Date: Mon, 19 Aug 2024 18:51:41 +0200
From: Philipp Stanner <pstanner@...hat.com>
To: onathan Corbet <corbet@....net>,
	Jens Axboe <axboe@...nel.dk>,
	Wu Hao <hao.wu@...el.com>,
	Tom Rix <trix@...hat.com>,
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	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Philipp Stanner <pstanner@...hat.com>,
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	"Martin K. Petersen" <martin.petersen@...cle.com>
Cc: linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-block@...r.kernel.org,
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Subject: [PATCH 1/9] PCI: Make pcim_release_region() a public function

pcim_release_region() is the managed counterpart of
pci_release_region(). It can be useful in some cases where drivers want
to manually release a requested region before the driver's remove()
callback is invoked.

Make pcim_release_region() a public function.

Signed-off-by: Philipp Stanner <pstanner@...hat.com>
---
 drivers/pci/devres.c | 1 +
 drivers/pci/pci.h    | 1 -
 include/linux/pci.h  | 1 +
 3 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/devres.c b/drivers/pci/devres.c
index b97589e99fad..608f13ef2a4b 100644
--- a/drivers/pci/devres.c
+++ b/drivers/pci/devres.c
@@ -906,6 +906,7 @@ void pcim_release_region(struct pci_dev *pdev, int bar)
 	devres_release(&pdev->dev, pcim_addr_resource_release,
 			pcim_addr_resources_match, &res_searched);
 }
+EXPORT_SYMBOL(pcim_release_region);
 
 
 /**
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 2fe6055a334d..01b55ed2867c 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -889,7 +889,6 @@ static inline pci_power_t mid_pci_get_power_state(struct pci_dev *pdev)
 int pcim_intx(struct pci_dev *dev, int enable);
 int pcim_request_region_exclusive(struct pci_dev *pdev, int bar,
 				  const char *name);
-void pcim_release_region(struct pci_dev *pdev, int bar);
 
 /*
  * Config Address for PCI Configuration Mechanism #1
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 01b9f1a351be..dfa9af3a9c22 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -2295,6 +2295,7 @@ void __iomem *pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen);
 void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr);
 void __iomem * const *pcim_iomap_table(struct pci_dev *pdev);
 int pcim_request_region(struct pci_dev *pdev, int bar, const char *name);
+void pcim_release_region(struct pci_dev *pdev, int bar);
 void __iomem *pcim_iomap_region(struct pci_dev *pdev, int bar,
 				       const char *name);
 int pcim_iomap_regions(struct pci_dev *pdev, int mask, const char *name);
-- 
2.46.0