Messages in this thread |  | | | Date | Thu, 1 May 2008 02:00:55 -0700 | | From | Arjan van de Ven <> | | Subject | Re: [PATCH 0/3] Add API for weak DMA masks |
On Thu, 1 May 2008 16:38:15 +0200
Michael Buesch <mb@bu3sch.de> wrote:
> This patchset adds API and one user for a "weak" dma_set_mask().
> Weak means that it will fallback to smaller masks in case the
> DMA subsystem rejects a big mask.
> Currently such rejection may happen if the driver requests a 64bit
> mask on a VIA machine, for example. dma_set_mask_weak() will fallback
> to 32bit, in that case, and tell the caller about it by modifying the
> passed mask.
can we just make the existing API do this instead?
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