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[kvmtool] Avoid pointers for address of packed members

Message ID 20170322063836.5178-1-raj.khem@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Khem Raj March 22, 2017, 6:38 a.m. UTC 
Fixes Clang warning due to -Waddress-of-packed-member

virtio/blk.c:161:37: error: taking address of packed member 'geometry' of class or structure 'virtio_blk_config' may result in an unaligned pointer value [-Werror,-Waddress-of-packed-member]
        struct virtio_blk_geometry *geo = &conf->geometry;

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 virtio/blk.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/virtio/blk.c b/virtio/blk.c
index c485e4f..1f7365d 100644
--- a/virtio/blk.c
+++ b/virtio/blk.c
@@ -158,7 +158,6 @@  static void set_guest_features(struct kvm *kvm, void *dev, u32 features)
 {
 	struct blk_dev *bdev = dev;
 	struct virtio_blk_config *conf = &bdev->blk_config;
-	struct virtio_blk_geometry *geo = &conf->geometry;
 
 	bdev->features = features;
 
@@ -167,7 +166,7 @@  static void set_guest_features(struct kvm *kvm, void *dev, u32 features)
 	conf->seg_max = virtio_host_to_guest_u32(&bdev->vdev, conf->seg_max);
 
 	/* Geometry */
-	geo->cylinders = virtio_host_to_guest_u16(&bdev->vdev, geo->cylinders);
+	conf->geometry.cylinders = virtio_host_to_guest_u16(&bdev->vdev, conf->geometry.cylinders);
 
 	conf->blk_size = virtio_host_to_guest_u32(&bdev->vdev, conf->blk_size);
 	conf->min_io_size = virtio_host_to_guest_u16(&bdev->vdev, conf->min_io_size);