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| author | Eli Cohen <eli@dev.mellanox.co.il> | 2014-12-11 17:04:15 +0200 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2014-12-15 18:13:35 -0800 |
| commit | 5a77abf9a97a7ecc8fb0f6bf4ad411fb12b02f31 (patch) | |
| tree | 2fbcf2c088cde299781ef0104c165f595aebd415 /include/rdma | |
| parent | c1395a2a8c01e8a919e47d64eb3d23d00e824b8b (diff) | |
| download | op-kernel-dev-5a77abf9a97a7ecc8fb0f6bf4ad411fb12b02f31.zip op-kernel-dev-5a77abf9a97a7ecc8fb0f6bf4ad411fb12b02f31.tar.gz | |
IB/core: Add support for extended query device caps
Add extensible query device capabilities verb to allow adding new features.
ib_uverbs_ex_query_device is added and copy_query_dev_fields is used to
copy capability fields to be used by both ib_uverbs_query_device and
ib_uverbs_ex_query_device.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'include/rdma')
| -rw-r--r-- | include/rdma/ib_verbs.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 470a011..97a999f 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1662,7 +1662,10 @@ static inline int ib_copy_from_udata(void *dest, struct ib_udata *udata, size_t static inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len) { - return copy_to_user(udata->outbuf, src, len) ? -EFAULT : 0; + size_t copy_sz; + + copy_sz = min_t(size_t, len, udata->outlen); + return copy_to_user(udata->outbuf, src, copy_sz) ? -EFAULT : 0; } /** |
