Messages in this thread |  | | Date | Wed, 18 Apr 2018 21:00:23 +0300 | From | "Michael S. Tsirkin" <> | Subject | Re: [PATCH] net: don't use kvzalloc for DMA memory |
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On Wed, Apr 18, 2018 at 01:47:21PM -0400, David Miller wrote: > From: Eric Dumazet <eric.dumazet@gmail.com> > Date: Wed, 18 Apr 2018 09:51:25 -0700 > > > I suggest that virtio_net clearly identifies which part needs a specific allocation > > and does its itself, instead of abusing the netdev_priv storage. > > > > Ie use a pointer to a block of memory, allocated by virtio_net, for virtio_net. > > +1
I can do this, but just FYI it's all of 16 bytes which is only mapped for DMA temporarily - and not all of it - a byte here, a byte there. The amount of hoops one has to jump through just to get 1 byte from device nowdays is annoying.
-- MST
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