On Sat, May 09, 2009 at 11:38:32AM +0200, Eric Valette wrote: > The patch fix the DMA warning and the driver seems to work (just > associated it) but I must say that the allocation failure handling path > and the fact that we use now kmalloc for allocating a few bytes in such > a routine makes me worry about possible negative performance impact > unless theses routines are used only in a slow configuration path (did > no took time to red the code due to many other problems). usb_control messages are slow and should not be on the "fast path" of any data being sent through the device. Any overhead of the kmalloc/kfree is totally eaten up by the actual transmission turn around time of the message itself, so you don't have to worry about the performance impact. thanks for testing. > BTW if someone know who I should send this attached patch for DRM git, I > would gladly forward it. To the drm maintainer? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
