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Message-ID: <2ca8b14adf79c4795d7aa95bbfc79253a6bfed82.1716102112.git.christophe.jaillet@wanadoo.fr>
Date: Sun, 19 May 2024 09:02:15 +0200
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Mustafa Ismail <mustafa.ismail@...el.com>,
	Shiraz Saleem <shiraz.saleem@...el.com>,
	Jason Gunthorpe <jgg@...pe.ca>,
	Leon Romanovsky <leon@...nel.org>,
	Kees Cook <keescook@...omium.org>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc: linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org,
	Christophe JAILLET <christophe.jaillet@...adoo.fr>,
	linux-rdma@...r.kernel.org,
	linux-hardening@...r.kernel.org
Subject: [PATCH] RDMA/irdma: Annotate  flexible array with __counted_by() in struct irdma_qvlist_info

'num_vectors' is used to count the number of elements in the 'qv_info'
flexible array in "struct irdma_qvlist_info".

So annotate it with __counted_by() to make it explicit and enable some
additional checks.

This allocation is done in irdma_save_msix_info().

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/infiniband/hw/irdma/main.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/irdma/main.h b/drivers/infiniband/hw/irdma/main.h
index b65bc2ea542f..9f0ed6e84471 100644
--- a/drivers/infiniband/hw/irdma/main.h
+++ b/drivers/infiniband/hw/irdma/main.h
@@ -239,7 +239,7 @@ struct irdma_qv_info {
 
 struct irdma_qvlist_info {
 	u32 num_vectors;
-	struct irdma_qv_info qv_info[];
+	struct irdma_qv_info qv_info[] __counted_by(num_vectors);
 };
 
 struct irdma_gen_ops {
-- 
2.45.1


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