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mips: provide unxlate_dev_mem_ptr() in asm/io.h

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The unxlate_dev_mem_ptr() function has no prototype on the mips
architecture, which does not include asm-generic/io.h, so gcc warns
about the __weak definition:

drivers/char/mem.c:94:29: error: no previous prototype for 'unxlate_dev_mem_ptr' [-Werror=missing-prototypes]

Since everyone else already gets the generic definition or has a custom
one, there is not really much point in having a __weak version as well.

Remove this one, and instead add a trivial macro to the mips header.
Once we convert mips to use the asm-generic header, this can go away
again.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Arnd Bergmann 2023-05-16 21:39:42 +02:00 committed by Thomas Bogendoerfer
parent c5e4d83872
commit 99b619b37a
2 changed files with 1 additions and 7 deletions
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1
arch/mips/include/asm/io.h
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@ -554,6 +554,7 @@ extern void (*_dma_cache_inv)(unsigned long start, unsigned long size);
* access
*/
#define xlate_dev_mem_ptr(p) __va(p)
#define unxlate_dev_mem_ptr(p, v) do { } while (0)
void __ioread64_copy(void *to, const void __iomem *from, size_t count);

7
drivers/char/mem.c
View file

@ -90,13 +90,6 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
}
#endif
#ifndef unxlate_dev_mem_ptr
#define unxlate_dev_mem_ptr unxlate_dev_mem_ptr
void __weak unxlate_dev_mem_ptr(phys_addr_t phys, void *addr)
{
}
#endif
static inline bool should_stop_iteration(void)
{
if (need_resched())