linux-kernel - [PATCH] PCI: Constify dummy pci_register_io_range() fwnode

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Message-Id: <6a3ae390e2a978ec452ecbce3082cf51f7ee3076.1728989210.git.geert+renesas@glider.be>
Date: Tue, 15 Oct 2024 12:47:20 +0200
From: Geert Uytterhoeven <geert+renesas@...der.be>
To: Rob@....of.borg,
	Herring@....of.borg,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH] PCI: Constify dummy pci_register_io_range() fwnode_handle

If CONFIG_PCI=n:

    drivers/of/address.c: In function ‘of_pci_range_to_resource’:
    drivers/of/address.c:247:45: error: passing argument 1 of ‘pci_register_io_range’ discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
      247 |                 err = pci_register_io_range(&np->fwnode, range->cpu_addr,
	  |                                             ^~~~~~~~~~~
    In file included from drivers/of/address.c:12:
    include/linux/pci.h:2022:63: note: expected ‘struct fwnode_handle *’ but argument is of type ‘const struct fwnode_handle *’
     2022 | static inline int pci_register_io_range(struct fwnode_handle *fwnode,
	  |                                         ~~~~~~~~~~~~~~~~~~~~~~^~~~~~

Fixes: 6ad99a07e6d2ed91 ("PCI: Constify pci_register_io_range() fwnode_handle")
Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
 include/linux/pci.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 11421ae5c5586443..733ff6570e2d5544 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -2019,7 +2019,7 @@ static inline int pci_request_regions(struct pci_dev *dev, const char *res_name)
 { return -EIO; }
 static inline void pci_release_regions(struct pci_dev *dev) { }
 
-static inline int pci_register_io_range(struct fwnode_handle *fwnode,
+static inline int pci_register_io_range(const struct fwnode_handle *fwnode,
 					phys_addr_t addr, resource_size_t size)
 { return -EINVAL; }
 
-- 
2.34.1