IrDA driver fails on PXA255
From: rientjes@google.com (David Rientjes)
Date: 2011-05-29 21:19:45
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On Sun, 29 May 2011, Russell King - ARM Linux wrote:
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arm, pxa2xx: enable DMA support for pxa2xx IRDA interface The pxa2xx-ir driver allocates with GFP_DMA, so it must always have ZONE_DMA.Wrong way. If there's no restrictions, drivers shouldn't be using GFP_DMA. For the majority of SoCs, that's the case.
That's great, but before you can actually determine what requires DMA for this driver and what doesn't, we need something for this merge window (and backported to -stable) so that users aren't forced to go through and enable CONFIG_ZONE_DMA on their own .config. Is there a downside to enabling CONFIG_ZONE_DMA for all configs that compile this driver until a better solution can be found?