From: Michael S. Tsirkin Date: Thu, 25 Dec 2014 14:03:27 +0000 (+0200) Subject: virtio_ring: document alignment requirements X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~332^2~1 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b28e0506fafd9c987bba7a6a71ea02a37fcabdea;p=pandora-kernel.git virtio_ring: document alignment requirements Host needs to know vring element alignment requirements: simply doing alignof on structures doesn't work reliably: on some platforms gcc has alignof(uint32_t) == 2. Add macros for alignment as specified in virtio 1.0 cs01, export them to userspace as well. Acked-by: Rusty Russell Signed-off-by: Michael S. Tsirkin --- Reading git-diff-tree failed