From: Jason Wang <jasowang@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>, linux-kernel@vger.kernel.org
Cc: kvm@vger.kernel.org, Neil Armstrong <narmstrong@baylibre.com>,
David Airlie <airlied@linux.ie>,
linux-remoteproc@vger.kernel.org,
dri-devel@lists.freedesktop.org,
virtualization@lists.linux-foundation.org,
linux-s390@vger.kernel.org,
"James E.J. Bottomley" <jejb@linux.vnet.ibm.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
linux-scsi@vger.kernel.org, v9fs-developer@lists.sourceforge.net,
Asias He <asias@redhat.com>, Arnd Bergmann <arnd@arndb.de>,
linux-kbuild@vger.kernel.org, Jens Axboe <axboe@fb.com>,
Michal Marek <mmarek@suse.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
Matt Mackall <mpm@selenic.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-crypto@vger.kernel.org, netdev@vger.kernel.org,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH 10/10] virtio: enable endian checks for sparse builds
Date: Wed, 7 Dec 2016 13:27:35 +0800 [thread overview]
Message-ID: <9694c60d-c0cb-945c-f10e-9c1a8036ae6f@redhat.com> (raw)
In-Reply-To: <1481038106-24899-11-git-send-email-mst@redhat.com>
On 2016年12月06日 23:41, Michael S. Tsirkin wrote:
> __CHECK_ENDIAN__ isn't on by default presumably because
> it triggers too many sparse warnings for correct code.
> But virtio is now clean of these warnings, and
> we want to keep it this way - enable this for
> sparse builds.
>
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> ---
>
> It seems that there should be a better way to do it,
> but this works too.
Reviewed-by: Jason Wang <jasowang@redhat.com>
>
> drivers/block/Makefile | 1 +
> drivers/char/Makefile | 1 +
> drivers/char/hw_random/Makefile | 2 ++
> drivers/gpu/drm/virtio/Makefile | 1 +
> drivers/net/Makefile | 3 +++
> drivers/net/caif/Makefile | 1 +
> drivers/rpmsg/Makefile | 1 +
> drivers/s390/virtio/Makefile | 2 ++
> drivers/scsi/Makefile | 1 +
> drivers/vhost/Makefile | 1 +
> drivers/virtio/Makefile | 3 +++
> net/9p/Makefile | 1 +
> net/packet/Makefile | 1 +
> net/vmw_vsock/Makefile | 2 ++
> 14 files changed, 21 insertions(+)
>
> diff --git a/drivers/block/Makefile b/drivers/block/Makefile
> index 1e9661e..597481c 100644
> --- a/drivers/block/Makefile
> +++ b/drivers/block/Makefile
> @@ -27,6 +27,7 @@ obj-$(CONFIG_BLK_DEV_OSD) += osdblk.o
> obj-$(CONFIG_BLK_DEV_UMEM) += umem.o
> obj-$(CONFIG_BLK_DEV_NBD) += nbd.o
> obj-$(CONFIG_BLK_DEV_CRYPTOLOOP) += cryptoloop.o
> +CFLAGS_virtio_blk.o += -D__CHECK_ENDIAN__
> obj-$(CONFIG_VIRTIO_BLK) += virtio_blk.o
>
> obj-$(CONFIG_BLK_DEV_SX8) += sx8.o
> diff --git a/drivers/char/Makefile b/drivers/char/Makefile
> index 6e6c244..a99467d 100644
> --- a/drivers/char/Makefile
> +++ b/drivers/char/Makefile
> @@ -6,6 +6,7 @@ obj-y += mem.o random.o
> obj-$(CONFIG_TTY_PRINTK) += ttyprintk.o
> obj-y += misc.o
> obj-$(CONFIG_ATARI_DSP56K) += dsp56k.o
> +CFLAGS_virtio_console.o += -D__CHECK_ENDIAN__
> obj-$(CONFIG_VIRTIO_CONSOLE) += virtio_console.o
> obj-$(CONFIG_RAW_DRIVER) += raw.o
> obj-$(CONFIG_SGI_SNSC) += snsc.o snsc_event.o
> diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
> index 5f52b1e..a2b0931 100644
> --- a/drivers/char/hw_random/Makefile
> +++ b/drivers/char/hw_random/Makefile
> @@ -17,6 +17,8 @@ obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o
> obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o
> obj-$(CONFIG_HW_RANDOM_OMAP3_ROM) += omap3-rom-rng.o
> obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o
> +CFLAGS_virtio_transport.o += -D__CHECK_ENDIAN__
> +CFLAGS_virtio-rng.o += -D__CHECK_ENDIAN__
> obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o
> obj-$(CONFIG_HW_RANDOM_TX4939) += tx4939-rng.o
> obj-$(CONFIG_HW_RANDOM_MXC_RNGA) += mxc-rnga.o
> diff --git a/drivers/gpu/drm/virtio/Makefile b/drivers/gpu/drm/virtio/Makefile
> index 3fb8eac..1162366 100644
> --- a/drivers/gpu/drm/virtio/Makefile
> +++ b/drivers/gpu/drm/virtio/Makefile
> @@ -3,6 +3,7 @@
> # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
>
> ccflags-y := -Iinclude/drm
> +ccflags-y += -D__CHECK_ENDIAN__
>
> virtio-gpu-y := virtgpu_drv.o virtgpu_kms.o virtgpu_drm_bus.o virtgpu_gem.o \
> virtgpu_fb.o virtgpu_display.o virtgpu_vq.o virtgpu_ttm.o \
> diff --git a/drivers/net/Makefile b/drivers/net/Makefile
> index 7336cbd..3f587de 100644
> --- a/drivers/net/Makefile
> +++ b/drivers/net/Makefile
> @@ -12,6 +12,7 @@ obj-$(CONFIG_EQUALIZER) += eql.o
> obj-$(CONFIG_IFB) += ifb.o
> obj-$(CONFIG_MACSEC) += macsec.o
> obj-$(CONFIG_MACVLAN) += macvlan.o
> +CFLAGS_macvtap.o += -D__CHECK_ENDIAN__
> obj-$(CONFIG_MACVTAP) += macvtap.o
> obj-$(CONFIG_MII) += mii.o
> obj-$(CONFIG_MDIO) += mdio.o
> @@ -20,8 +21,10 @@ obj-$(CONFIG_NETCONSOLE) += netconsole.o
> obj-$(CONFIG_PHYLIB) += phy/
> obj-$(CONFIG_RIONET) += rionet.o
> obj-$(CONFIG_NET_TEAM) += team/
> +CFLAGS_tun.o += -D__CHECK_ENDIAN__
> obj-$(CONFIG_TUN) += tun.o
> obj-$(CONFIG_VETH) += veth.o
> +CFLAGS_virtio_net.o += -D__CHECK_ENDIAN__
> obj-$(CONFIG_VIRTIO_NET) += virtio_net.o
> obj-$(CONFIG_VXLAN) += vxlan.o
> obj-$(CONFIG_GENEVE) += geneve.o
> diff --git a/drivers/net/caif/Makefile b/drivers/net/caif/Makefile
> index 9bbd453..d1a922c 100644
> --- a/drivers/net/caif/Makefile
> +++ b/drivers/net/caif/Makefile
> @@ -12,3 +12,4 @@ obj-$(CONFIG_CAIF_HSI) += caif_hsi.o
>
> # Virtio interface
> obj-$(CONFIG_CAIF_VIRTIO) += caif_virtio.o
> +CFLAGS_caif_virtio.o += -D__CHECK_ENDIAN__
> diff --git a/drivers/rpmsg/Makefile b/drivers/rpmsg/Makefile
> index ae9c913..23c8b66 100644
> --- a/drivers/rpmsg/Makefile
> +++ b/drivers/rpmsg/Makefile
> @@ -1,3 +1,4 @@
> obj-$(CONFIG_RPMSG) += rpmsg_core.o
> obj-$(CONFIG_RPMSG_QCOM_SMD) += qcom_smd.o
> obj-$(CONFIG_RPMSG_VIRTIO) += virtio_rpmsg_bus.o
> +CFLAGS_virtio_rpmsg_bus.o += -D__CHECK_ENDIAN__
> diff --git a/drivers/s390/virtio/Makefile b/drivers/s390/virtio/Makefile
> index df40692..270ada5 100644
> --- a/drivers/s390/virtio/Makefile
> +++ b/drivers/s390/virtio/Makefile
> @@ -6,6 +6,8 @@
> # it under the terms of the GNU General Public License (version 2 only)
> # as published by the Free Software Foundation.
>
> +CFLAGS_virtio_ccw.o += -D__CHECK_ENDIAN__
> +CFLAGS_kvm_virtio.o += -D__CHECK_ENDIAN__
> s390-virtio-objs := virtio_ccw.o
> ifdef CONFIG_S390_GUEST_OLD_TRANSPORT
> s390-virtio-objs += kvm_virtio.o
> diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
> index 38d938d..9f70d46 100644
> --- a/drivers/scsi/Makefile
> +++ b/drivers/scsi/Makefile
> @@ -135,6 +135,7 @@ obj-$(CONFIG_SCSI_BNX2_ISCSI) += libiscsi.o bnx2i/
> obj-$(CONFIG_BE2ISCSI) += libiscsi.o be2iscsi/
> obj-$(CONFIG_SCSI_ESAS2R) += esas2r/
> obj-$(CONFIG_SCSI_PMCRAID) += pmcraid.o
> +CFLAGS_virtio_scsi.o += -D__CHECK_ENDIAN__
> obj-$(CONFIG_SCSI_VIRTIO) += virtio_scsi.o
> obj-$(CONFIG_VMWARE_PVSCSI) += vmw_pvscsi.o
> obj-$(CONFIG_XEN_SCSI_FRONTEND) += xen-scsifront.o
> diff --git a/drivers/vhost/Makefile b/drivers/vhost/Makefile
> index 6b012b9..619e2cd 100644
> --- a/drivers/vhost/Makefile
> +++ b/drivers/vhost/Makefile
> @@ -1,3 +1,4 @@
> +ccflags-y := -D__CHECK_ENDIAN__
> obj-$(CONFIG_VHOST_NET) += vhost_net.o
> vhost_net-y := net.o
>
> diff --git a/drivers/virtio/Makefile b/drivers/virtio/Makefile
> index 41e30e3..d331f19 100644
> --- a/drivers/virtio/Makefile
> +++ b/drivers/virtio/Makefile
> @@ -1,3 +1,6 @@
> +#virtio must be kept clean wrt endian tags,
> +#otherwise we'll get to maintain broken host/guest ABIs
> +ccflags-y := -D__CHECK_ENDIAN__
> obj-$(CONFIG_VIRTIO) += virtio.o virtio_ring.o
> obj-$(CONFIG_VIRTIO_MMIO) += virtio_mmio.o
> obj-$(CONFIG_VIRTIO_PCI) += virtio_pci.o
> diff --git a/net/9p/Makefile b/net/9p/Makefile
> index a0874cc..acf1225 100644
> --- a/net/9p/Makefile
> +++ b/net/9p/Makefile
> @@ -11,6 +11,7 @@ obj-$(CONFIG_NET_9P_RDMA) += 9pnet_rdma.o
> trans_fd.o \
> trans_common.o \
>
> +CFLAGS_trans_virtio.o += -D__CHECK_ENDIAN__
> 9pnet_virtio-objs := \
> trans_virtio.o \
>
> diff --git a/net/packet/Makefile b/net/packet/Makefile
> index 9df6134..a13bcb3 100644
> --- a/net/packet/Makefile
> +++ b/net/packet/Makefile
> @@ -2,6 +2,7 @@
> # Makefile for the packet AF.
> #
>
> +ccflags-y := -D__CHECK_ENDIAN__
> obj-$(CONFIG_PACKET) += af_packet.o
> obj-$(CONFIG_PACKET_DIAG) += af_packet_diag.o
> af_packet_diag-y += diag.o
> diff --git a/net/vmw_vsock/Makefile b/net/vmw_vsock/Makefile
> index bc27c70..a61eccb 100644
> --- a/net/vmw_vsock/Makefile
> +++ b/net/vmw_vsock/Makefile
> @@ -8,6 +8,8 @@ vsock-y += af_vsock.o vsock_addr.o
> vmw_vsock_vmci_transport-y += vmci_transport.o vmci_transport_notify.o \
> vmci_transport_notify_qstate.o
>
> +CFLAGS_virtio_transport.o += -D__CHECK_ENDIAN__
> +CFLAGS_virtio_transport_common.o += -D__CHECK_ENDIAN__
> vmw_vsock_virtio_transport-y += virtio_transport.o
>
> vmw_vsock_virtio_transport_common-y += virtio_transport_common.o
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next prev parent reply other threads:[~2016-12-07 5:27 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-06 15:40 [PATCH 00/10] virtio: sparse fixes Michael S. Tsirkin
2016-12-06 15:40 ` [PATCH 01/10] virtio_console: drop unused config fields Michael S. Tsirkin
2016-12-07 4:12 ` Jason Wang
2016-12-06 15:40 ` [PATCH 02/10] drm/virtio: fix endianness in primary_plane_update Michael S. Tsirkin
2016-12-06 15:40 ` [PATCH 03/10] drm/virtio: fix lock context imbalance Michael S. Tsirkin
2016-12-06 15:40 ` [PATCH 04/10] drm/virtio: annotate virtio_gpu_queue_ctrl_buffer_locked Michael S. Tsirkin
2016-12-06 15:40 ` [PATCH 05/10] vhost: make interval tree static inline Michael S. Tsirkin
2016-12-07 4:16 ` Jason Wang
2016-12-06 15:40 ` [PATCH 06/10] vhost: add missing __user annotations Michael S. Tsirkin
2016-12-06 15:40 ` [PATCH 07/10] vsock/virtio: add a missing __le annotation Michael S. Tsirkin
2016-12-07 4:19 ` Jason Wang
2016-12-07 14:09 ` Stefan Hajnoczi
2016-12-06 15:41 ` [PATCH 08/10] vsock/virtio: mark an internal function static Michael S. Tsirkin
2016-12-06 15:41 ` [PATCH 09/10] vsock/virtio: fix src/dst cid format Michael S. Tsirkin
2016-12-06 15:41 ` [PATCH 10/10] virtio: enable endian checks for sparse builds Michael S. Tsirkin
[not found] ` <1481038106-24899-3-git-send-email-mst@redhat.com>
2016-12-07 4:13 ` [PATCH 02/10] drm/virtio: fix endianness in primary_plane_update Jason Wang
[not found] ` <1481038106-24899-4-git-send-email-mst@redhat.com>
2016-12-07 4:13 ` [PATCH 03/10] drm/virtio: fix lock context imbalance Jason Wang
[not found] ` <1481038106-24899-5-git-send-email-mst@redhat.com>
2016-12-07 4:15 ` [PATCH 04/10] drm/virtio: annotate virtio_gpu_queue_ctrl_buffer_locked Jason Wang
[not found] ` <1481038106-24899-7-git-send-email-mst@redhat.com>
2016-12-07 4:17 ` [PATCH 06/10] vhost: add missing __user annotations Jason Wang
[not found] ` <1481038106-24899-9-git-send-email-mst@redhat.com>
2016-12-07 4:21 ` [PATCH 08/10] vsock/virtio: mark an internal function static Jason Wang
2016-12-08 14:25 ` Michael S. Tsirkin
2016-12-12 1:56 ` Jason Wang
2016-12-07 14:09 ` Stefan Hajnoczi
[not found] ` <1481038106-24899-10-git-send-email-mst@redhat.com>
2016-12-07 4:31 ` [PATCH 09/10] vsock/virtio: fix src/dst cid format Jason Wang
2016-12-07 14:09 ` Stefan Hajnoczi
[not found] ` <a0dcb733-ab1c-ac66-2300-fcb90fbacea2@redhat.com>
2016-12-11 2:54 ` Michael S. Tsirkin
[not found] ` <1481038106-24899-11-git-send-email-mst@redhat.com>
2016-12-07 5:27 ` Jason Wang [this message]
2016-12-07 6:25 ` [PATCH 10/10] virtio: enable endian checks for sparse builds Johannes Berg
2016-12-07 13:22 ` Michael S. Tsirkin
2016-12-07 7:30 ` Christoph Hellwig
2016-12-07 14:09 ` Stefan Hajnoczi
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