RDMA/irdma: Annotate flexible array with __counted_by() in struct irdma_qvlist_info

JIRA: https://issues.redhat.com/browse/RHEL-49824

commit 38c02d8
Author: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date:   Sun May 19 09:02:15 2024 +0200

    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@wanadoo.fr>
    Link: https://lore.kernel.org/r/2ca8b14adf79c4795d7aa95bbfc79253a6bfed82.1716102112.git.christophe.jaillet@wanadoo.fr
    Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
    Signed-off-by: Leon Romanovsky <leon@kernel.org>

Signed-off-by: Kamal Heib <kheib@redhat.com>

Author: Kamalheib

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 {