Commit 140e4c85d540 ("crypto: qat - Avoid -Wflex-array-member-not-at-end
warnings") introduced tagged `struct qat_alg_buf_list_hdr`. We want to
ensure that when new members need to be added to the flexible structure,
they are always included within this tagged struct.
So, we use `static_assert()` to ensure that the memory layout for
both the flexible structure and the tagged struct is the same after
any changes.
Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>
---
drivers/crypto/intel/qat/qat_common/qat_bl.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/crypto/intel/qat/qat_common/qat_bl.h b/drivers/crypto/intel/qat/qat_common/qat_bl.h
index 85bc32a9ec0e..3f5b79015400 100644
--- a/drivers/crypto/intel/qat/qat_common/qat_bl.h
+++ b/drivers/crypto/intel/qat/qat_common/qat_bl.h
@@ -23,6 +23,8 @@ struct qat_alg_buf_list {
);
struct qat_alg_buf buffers[];
} __packed;
+static_assert(offsetof(struct qat_alg_buf_list, buffers) == sizeof(struct qat_alg_buf_list_hdr),
+ "struct member likely outside of __struct_group()");
struct qat_alg_fixed_buf_list {
struct qat_alg_buf_list_hdr sgl_hdr;
--
2.34.1
