From: Stanislav Kinsburskii Date: Sat, 15 Apr 2023 11:17:53 +0000 (-0700) Subject: powerpc/io: Expect immutable pointer in virt_to_phys() prototype X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b28d1ccf921a4333be14017d82066386d419e638;p=linux.git 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 Reviewed-by: Linus Walleij Signed-off-by: Michael Ellerman Link: https://msgid.link/168155747391.13678.10634415747614468991.stgit@skinsburskii.localdomain --- diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h index 0732b743e0996..5220274a62772 100644 --- a/arch/powerpc/include/asm/io.h +++ b/arch/powerpc/include/asm/io.h @@ -950,7 +950,7 @@ extern void __iomem *__ioremap_caller(phys_addr_t, unsigned long size, * almost all conceivable cases a device driver should not be using * this function */ -static inline unsigned long virt_to_phys(volatile void * address) +static inline unsigned long virt_to_phys(const volatile void * address) { WARN_ON(IS_ENABLED(CONFIG_DEBUG_VIRTUAL) && !virt_addr_valid(address));