[PATCH] net/handshake: Squelch allocation warning during Kunit test

From: Chuck Lever
Date: Fri May 12 2023 - 15:02:35 EST


From: Chuck Lever <chuck.lever@xxxxxxxxxx>

The "handshake_req_alloc excessive privsize" kunit test is intended
to check what happens when the maximum privsize is exceeded. The
WARN_ON_ONCE_GFP at mm/page_alloc.c:4744 can be disabled safely for
this allocator call site.

Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
Fixes: 88232ec1ec5e ("net/handshake: Add Kunit tests for the handshake consumer API")
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
net/handshake/request.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/handshake/request.c b/net/handshake/request.c
index d78d41abb3d9..24097cccd158 100644
--- a/net/handshake/request.c
+++ b/net/handshake/request.c
@@ -120,7 +120,8 @@ struct handshake_req *handshake_req_alloc(const struct handshake_proto *proto,
if (!proto->hp_accept || !proto->hp_done)
return NULL;

- req = kzalloc(struct_size(req, hr_priv, proto->hp_privsize), flags);
+ req = kzalloc(struct_size(req, hr_priv, proto->hp_privsize),
+ flags | __GFP_NOWARN);
if (!req)
return NULL;