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x86/mm: Add early_memremap_pgprot_adjust() prototype

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early_memremap_pgprot_adjust() is a __weak function with a local
prototype, but x86 has a custom implementation that does not
see the prototype, causing a W=1 warning:

arch/x86/mm/ioremap.c:785:17: error: no previous prototype for 'early_memremap_pgprot_adjust' [-Werror=missing-prototypes]

Move the declaration into the global linux/io.h header to avoid this.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://lore.kernel.org/all/20230516193549.544673-19-arnd%40kernel.org
This commit is contained in:
Arnd Bergmann
2023-05-16 21:35:47 +02:00
committed by Dave Hansen
parent 3b939ba0c2
commit 4d312ac057
2 changed files with 5 additions and 6 deletions
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5
include/linux/io.h
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@@ -68,6 +68,11 @@ void *devm_memremap(struct device *dev, resource_size_t offset,
size_t size, unsigned long flags);
void devm_memunmap(struct device *dev, void *addr);
/* architectures can override this */
pgprot_t __init early_memremap_pgprot_adjust(resource_size_t phys_addr,
unsigned long size, pgprot_t prot);
#ifdef CONFIG_PCI
/*
* The PCI specifications (Rev 3.0, 3.2.5 "Transaction Ordering and