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    SubjectRe: [PATCH v2 03/44] Add CONFIG_HAVE_64BIT_ALIGNED_STRUCT for taskstats
    On 08/12/12 03:43, H. Peter Anvin wrote:
    > On 12/05/2012 08:08 AM, James Hogan wrote:
    >> On 64 bit architectures with no efficient unaligned access, taskstats
    >> has to add some padding to a reply to prevent unaligned access warnings.
    >> However this also needs to apply to 32 bit architectures with 64 bit
    >> struct alignment such as metag (which has 64 bit memory accesses).
    >
    > Wait... 64-bit struct alignment on structures with only 32-bit members?
    > That might be... interesting... in a number of places...

    Hi,

    I'll rewrite the description as it's a bit misleading. On metag 64bit
    struct alignment is required when it contains 64bit members, not if it
    only contains 32bit members. Although metag is a 32bit arch, it can do
    64bit memory accesses which must be aligned.

    Thanks for taking a look.

    James



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