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authorYann Droneaud <ydroneaud@opteya.com>2013-11-06 23:21:48 +0100
committerRoland Dreier <roland@purestorage.com>2013-11-17 08:22:08 -0800
commit2490f20be496c2da14ae4632a8c60e0633e97fd0 (patch)
tree4c80e3d5dc5004eebd5fc3dcccf4b26f2b16d644 /drivers/infiniband/core
parent58913efba9c3aa7992f2a4d630135ded833d988e (diff)
IB/core: Remove ib_uverbs_flow_spec structure from userspace
The structure holding any types of flow_spec is of no use to userspace. It would be wrong for userspace to do: struct ib_uverbs_flow_spec flow_spec; flow_spec.type = IB_FLOW_SPEC_TCP; flow_spec.size = sizeof(flow_spec); Instead, userspace should use the dedicated flow_spec structure for - Ethernet : struct ib_uverbs_flow_spec_eth, - IPv4 : struct ib_uverbs_flow_spec_ipv4, - TCP/UDP : struct ib_uverbs_flow_spec_tcp_udp. In other words, struct ib_uverbs_flow_spec is a "virtual" data structure that can only be use by the kernel as an alias to the other. Signed-off-by: Yann Droneaud <ydroneaud@opteya.com> Link: http://marc.info/?i=cover.1383773832.git.ydroneaud@opteya.com Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/core')
-rw-r--r--drivers/infiniband/core/uverbs.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index d8f9c6c272d..777954f6727 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -178,6 +178,22 @@ void ib_uverbs_event_handler(struct ib_event_handler *handler,
struct ib_event *event);
void ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev, struct ib_xrcd *xrcd);
+struct ib_uverbs_flow_spec {
+ union {
+ union {
+ struct ib_uverbs_flow_spec_hdr hdr;
+ struct {
+ __u32 type;
+ __u16 size;
+ __u16 reserved;
+ };
+ };
+ struct ib_uverbs_flow_spec_eth eth;
+ struct ib_uverbs_flow_spec_ipv4 ipv4;
+ struct ib_uverbs_flow_spec_tcp_udp tcp_udp;
+ };
+};
+
#define IB_UVERBS_DECLARE_CMD(name) \
ssize_t ib_uverbs_##name(struct ib_uverbs_file *file, \
const char __user *buf, int in_len, \