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powerpc/io: Expect immutable pointer in virt_to_phys() prototype
virt_to_phys() doesn't need the address pointer to be mutable. At the same time allowing it to be mutable leads to the following build warning for constant pointers: warning: passing argument 1 of ‘virt_to_phys’ discards ‘const’ qualifier from pointer target type Signed-off-by: Stanislav Kinsburskii <stanislav.kinsburskii@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/168155747391.13678.10634415747614468991.stgit@skinsburskii.localdomain
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@ -950,7 +950,7 @@ extern void __iomem *__ioremap_caller(phys_addr_t, unsigned long size,
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* almost all conceivable cases a device driver should not be using
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* this function
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*/
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static inline unsigned long virt_to_phys(volatile void * address)
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static inline unsigned long virt_to_phys(const volatile void * address)
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{
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WARN_ON(IS_ENABLED(CONFIG_DEBUG_VIRTUAL) && !virt_addr_valid(address));
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