powerpc: move the ARCH_DMA_MINALIGN definition to asm/cache.h

Patch series "Move the ARCH_DMA_MINALIGN definition to asm/cache.h".

The ARCH_KMALLOC_MINALIGN reduction series defines a generic
ARCH_DMA_MINALIGN in linux/cache.h:

https://lore.kernel.org/r/[email protected]/

Unfortunately, this causes a duplicate definition warning for
microblaze, powerpc (32-bit only) and sh as these architectures define
ARCH_DMA_MINALIGN in a different file than asm/cache.h. Move the macro
to asm/cache.h to avoid this issue and also bring them in line with the
other architectures.


This patch (of 3):

The powerpc architecture defines ARCH_DMA_MINALIGN in asm/page_32.h and
only if CONFIG_NOT_COHERENT_CACHE is enabled (32-bit platforms only). 
Move this macro to asm/cache.h to allow a generic ARCH_DMA_MINALIGN
definition in linux/cache.h without redefine errors/warnings.

Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Cc: Michael Ellerman <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Christophe Leroy <[email protected]>
Cc: John Paul Adrian Glaubitz <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions