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RDMA/uverbs: Use uverbs_attr_bundle to pass udata for ioctl()

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Have the core code initialize the driver_udata if the method has a udata
description. This is done using the same create_udata the handler was
supposed to call.

This makes ioctl consistent with the write and write_ex paths.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
This commit is contained in:
Jason Gunthorpe
2018-11-25 20:51:20 +02:00
parent 3a6532c9af
commit 07f05f40d9
5 changed files with 15 additions and 7 deletions
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8
include/rdma/uverbs_ioctl.h
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@@ -79,6 +79,8 @@ struct uverbs_attr_spec {
*/
u8 alloc_and_copy:1;
u8 mandatory:1;
/* True if this is from UVERBS_ATTR_UHW */
u8 is_udata:1;
union {
struct {
@@ -598,10 +600,12 @@ struct uapi_definition {
#define UVERBS_ATTR_UHW() \
UVERBS_ATTR_PTR_IN(UVERBS_ATTR_UHW_IN, \
UVERBS_ATTR_MIN_SIZE(0), \
UA_OPTIONAL), \
UA_OPTIONAL, \
.is_udata = 1), \
UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_UHW_OUT, \
UVERBS_ATTR_MIN_SIZE(0), \
UA_OPTIONAL)
UA_OPTIONAL, \
.is_udata = 1)
/* =================================================
* Parsing infrastructure