Miquel van Smoorenburg wrote:
> [PATCH 3/4] dpt_i2o: 64 bit support
>
> This is the code to actually support 64 bit platforms. 64 bit
> DMA is enabled on both x86_32 PAE and 64 bit platforms.
>
> This code is based in part on the unofficial adaptec 64-bit
> dpt_i2o driver update that I got from Mark Salyzyn at Adaptec.
> +static inline int dpt_dma64(adpt_hba *pHba)
> +{
> + return (sizeof(dma_addr_t) > 4 && (pHba)->dma64);
> +}
> +
Just a note: you never set dma64 if sizeof(dma_addr_t) == 4. Doing it this way
has the advantage that the compiler can optimize that away completely.
Eike
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