RDMA/uverbs: Add __GFP_NOWARN to ib_uverbs_unmarshall_recv() kmalloc

Since wqe_size in ib_uverbs_unmarshall_recv() is user-provided and already
validated, but can still be large, add __GFP_NOWARN to suppress memory
allocation warnings for large sizes, consistent with the similar fix in
ib_uverbs_post_send().

Fixes: 67cdb40ca444 ("[IB] uverbs: Implement more commands")
Signed-off-by: Yi Liu <liuy22@mails.tsinghua.edu.cn>
Link: https://patch.msgid.link/20260129094900.3517706-1-liuy22@mails.tsinghua.edu.cn
Signed-off-by: Leon Romanovsky <leon@kernel.org>

diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 3259e9848cc79906f9beb57a97c51aac0845c535..f4616deeca5453fb4b99e74c3f1a93961453b4fc 100644 (file)
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -2242,7 +2242,7 @@ ib_uverbs_unmarshall_recv(struct uverbs_req_iter *iter, u32 wr_count,
        if (ret)
                return ERR_PTR(ret);
 
-       user_wr = kmalloc(wqe_size, GFP_KERNEL);
+       user_wr = kmalloc(wqe_size, GFP_KERNEL | __GFP_NOWARN);
        if (!user_wr)
                return ERR_PTR(-ENOMEM);