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    Subject[patch 076/164] xtensa: set ARCH_KMALLOC_MINALIGN
    2.6.33-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

    commit 498900fc9cd1adbad1ba6b55ed9d8f2f5d655ca3 upstream.

    Architectures that handle DMA-non-coherent memory need to set
    ARCH_KMALLOC_MINALIGN to make sure that kmalloc'ed buffer is DMA-safe: the
    buffer doesn't share a cache with the others.

    Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
    Cc: Chris Zankel <chris@zankel.net>
    Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    arch/xtensa/include/asm/cache.h | 1 +
    1 file changed, 1 insertion(+)

    --- a/arch/xtensa/include/asm/cache.h
    +++ b/arch/xtensa/include/asm/cache.h
    @@ -29,5 +29,6 @@
    # define CACHE_WAY_SIZE ICACHE_WAY_SIZE
    #endif

    +#define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES

    #endif /* _XTENSA_CACHE_H */



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