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x86: provide readq()/writeq() on 32-bit too, complete
if HAVE_READQ/HAVE_WRITEQ are defined, the full range of readq/writeq APIs has to be provided to drivers: drivers/infiniband/hw/amso1100/c2.c: In function 'c2_tx_ring_alloc': drivers/infiniband/hw/amso1100/c2.c:133: error: implicit declaration of function '__raw_writeq' So provide them on 32-bit as well. Also, map all the APIs to the strongest ordering variant. It's way too easy to mess such details up in drivers and the difference between "memory" and "" constrained asm() constructs is in the noise range. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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