Messages in this thread Patch in this message | | | Subject | [PATCH 5/7] ia64: asm/io.h: Expect immutable pointer in virt_to_phys prototype | From | Stanislav Kinsburskii <> | Date | Sat, 15 Apr 2023 04:17:48 -0700 |
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From: Stanislav Kinsburskii <stanislav.kinsburskii@gmail.com>
These helper function - virt_to_phys - doesn't need the address pointer to be mutable.
In the same time expecting 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> CC: Geert Uytterhoeven <geert@linux-m68k.org> CC: Helge Deller <deller@gmx.de> CC: Arnd Bergmann <arnd@arndb.de> CC: Andrew Morton <akpm@linux-foundation.org> CC: Bjorn Helgaas <bhelgaas@google.com> CC: Stanislav Kinsburskii <stanislav.kinsburskii@gmail.com> CC: linux-ia64@vger.kernel.org CC: linux-kernel@vger.kernel.org --- arch/ia64/include/asm/io.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h index 83a492c8d298..c56ad21ba1e9 100644 --- a/arch/ia64/include/asm/io.h +++ b/arch/ia64/include/asm/io.h @@ -74,7 +74,7 @@ extern unsigned int num_io_spaces; * Change virtual addresses to physical addresses and vv. */ static inline unsigned long -virt_to_phys (volatile void *address) +virt_to_phys (const volatile void *address) { return (unsigned long) address - PAGE_OFFSET; }
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