datapath-protocol: Use Linux kernel types directly.
We want datapath-protocol.h to be acceptable as a Linux kernel header, so
it must use Linux kernel types and must not have references to Open vSwitch
symbols or header files. This commit primarily makes that change to
datapath-protocol.h.
At the same time, at least for now we also want datapath-protocol.h to be
usable on non-Linux platforms, so we need some kind of compatiblity. Thus,
this commit also introduces a <linux/types.h> header file that defines the
necessary Linux kernel types on non-Linux platforms.
In turn, this requires openvswitch/types.h to use the Linux types directly
for ovs_be<N>; otherwise, sparse complains because now __be<N> and
ovs_be<N> are incompatible from its perspective, so this commit makes that
change too.
I don't have a non-Linux kernel platform readily available, so I only
tested the non-Linux part of the linux/types.h substitute by forcing that
case to be triggered with #if 0. It worked, except for errors in actual
Linux kernel headers included explicitly from OVS source files, so I think
it's likely to work in practice.
Bug #7559.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
2011-10-05 10:42:34 -07:00
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/*
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* Copyright (c) 2011 Nicira Networks.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef LINUX_TYPES_H
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#define LINUX_TYPES_H 1
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/* On Linux, this header file just includes <linux/types.h>.
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*
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* On other platforms, this header file implements just enough of
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2011-10-05 10:50:58 -07:00
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* <linux/types.h> to allow <linux/openvswitch.h> to work, that is, it defines
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datapath-protocol: Use Linux kernel types directly.
We want datapath-protocol.h to be acceptable as a Linux kernel header, so
it must use Linux kernel types and must not have references to Open vSwitch
symbols or header files. This commit primarily makes that change to
datapath-protocol.h.
At the same time, at least for now we also want datapath-protocol.h to be
usable on non-Linux platforms, so we need some kind of compatiblity. Thus,
this commit also introduces a <linux/types.h> header file that defines the
necessary Linux kernel types on non-Linux platforms.
In turn, this requires openvswitch/types.h to use the Linux types directly
for ovs_be<N>; otherwise, sparse complains because now __be<N> and
ovs_be<N> are incompatible from its perspective, so this commit makes that
change too.
I don't have a non-Linux kernel platform readily available, so I only
tested the non-Linux part of the linux/types.h substitute by forcing that
case to be triggered with #if 0. It worked, except for errors in actual
Linux kernel headers included explicitly from OVS source files, so I think
it's likely to work in practice.
Bug #7559.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
2011-10-05 10:42:34 -07:00
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* the __u<N> and __be<N> types. */
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#if __KERNEL__ || HAVE_LINUX_TYPES_H
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#include_next <linux/types.h>
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#else /* no <linux/types.h> */
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#include <stdint.h>
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#ifdef __CHECKER__
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#define __bitwise__ __attribute__((bitwise))
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#else
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#define __bitwise__
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#endif
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typedef uint8_t __u8;
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typedef uint16_t __u16;
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typedef uint32_t __u32;
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typedef uint64_t __u64;
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typedef uint16_t __bitwise__ __be16;
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typedef uint32_t __bitwise__ __be32;
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typedef uint64_t __bitwise__ __be64;
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#endif /* no <linux/types.h> */
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#endif /* <linux/types.h> */
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