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[PATCHv4,for-3.13,06/10] IB/uverbs: check comp_mask in destroy_flow

Message ID 9ddd51161f52165abe05a39763f13bd81d232d70.1387273677.git.ydroneaud@opteya.com (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Yann Droneaud Dec. 17, 2013, 9:58 a.m. UTC
Just like the check added to create_flow in 22878dbc9173,
comp_mask must be checked in destroy_flow too.

Since only empty comp_mask is currently supported,
any other value must be rejected.

This check was silently added in a previous patch[1] to move
comp_mask in extended command header, part of previous patchset[2]
against create/destroy_flow uverbs. The idea of moving comp_mask
to the header was discarded for the final patchset[3].

Unfortunately the check added in destroy_flow uverb was not
integrated in the final patchset.

[1] http://marc.info/?i=40175eda10d670d098204da6aa4c327a0171ae5f.1381510045.git.ydroneaud@opteya.com
[2] http://marc.info/?i=cover.1381510045.git.ydroneaud@opteya.com
[3] http://marc.info/?i=cover.1383773832.git.ydroneaud@opteya.com

Link: http://marc.info/?i=cover.1387273677.git.ydroneaud@opteya.com
Cc: Matan Barak <matanb@mellanox.com>
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
---
 drivers/infiniband/core/uverbs_cmd.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox

Patch

diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 971e16c970b9..a23874e959a1 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -2833,6 +2833,9 @@  int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file,
 	if (ret)
 		return ret;
 
+	if (cmd.comp_mask)
+		return -EINVAL;
+
 	uobj = idr_write_uobj(&ib_uverbs_rule_idr, cmd.flow_handle,
 			      file->ucontext);
 	if (!uobj)