-Wflex-array-member-not-at-end is coming in GCC-14, and we are getting ready to enable it globally. Use the `__struct_group()` helper to separate the flexible array from the rest of the members in flexible `struct qat_alg_buf_list`, through tagged `struct qat_alg_buf_list_hdr`, and avoid embedding the flexible-array member in the middle of `struct qat_alg_fixed_buf_list`. Also, use `container_of()` whenever we need to retrieve a pointer to the flexible structure. So, with these changes, fix the following warnings: drivers/crypto/intel/qat/qat_common/qat_bl.h:25:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/crypto/intel/qat/qat_common/qat_bl.h:25:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/crypto/intel/qat/qat_common/qat_bl.h:25:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/crypto/intel/qat/qat_common/qat_bl.h:25:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/crypto/intel/qat/qat_common/qat_bl.h:25:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/crypto/intel/qat/qat_common/qat_bl.h:25:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/crypto/intel/qat/qat_common/qat_bl.h:25:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/crypto/intel/qat/qat_common/qat_bl.h:25:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] Link: https://github.com/KSPP/linux/issues/202 Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx> --- drivers/crypto/intel/qat/qat_common/qat_bl.c | 6 ++++-- drivers/crypto/intel/qat/qat_common/qat_bl.h | 11 +++++++---- 2 files changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/crypto/intel/qat/qat_common/qat_bl.c b/drivers/crypto/intel/qat/qat_common/qat_bl.c index 76baed0a76c0..338acf29c487 100644 --- a/drivers/crypto/intel/qat/qat_common/qat_bl.c +++ b/drivers/crypto/intel/qat/qat_common/qat_bl.c @@ -81,7 +81,8 @@ static int __qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev, if (unlikely(!bufl)) return -ENOMEM; } else { - bufl = &buf->sgl_src.sgl_hdr; + bufl = container_of(&buf->sgl_src.sgl_hdr, + struct qat_alg_buf_list, hdr); memset(bufl, 0, sizeof(struct qat_alg_buf_list)); buf->sgl_src_valid = true; } @@ -139,7 +140,8 @@ static int __qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev, if (unlikely(!buflout)) goto err_in; } else { - buflout = &buf->sgl_dst.sgl_hdr; + buflout = container_of(&buf->sgl_dst.sgl_hdr, + struct qat_alg_buf_list, hdr); memset(buflout, 0, sizeof(struct qat_alg_buf_list)); buf->sgl_dst_valid = true; } diff --git a/drivers/crypto/intel/qat/qat_common/qat_bl.h b/drivers/crypto/intel/qat/qat_common/qat_bl.h index d87e4f35ac39..85bc32a9ec0e 100644 --- a/drivers/crypto/intel/qat/qat_common/qat_bl.h +++ b/drivers/crypto/intel/qat/qat_common/qat_bl.h @@ -15,14 +15,17 @@ struct qat_alg_buf { } __packed; struct qat_alg_buf_list { - u64 resrvd; - u32 num_bufs; - u32 num_mapped_bufs; + /* New members must be added within the __struct_group() macro below. */ + __struct_group(qat_alg_buf_list_hdr, hdr, __packed, + u64 resrvd; + u32 num_bufs; + u32 num_mapped_bufs; + ); struct qat_alg_buf buffers[]; } __packed; struct qat_alg_fixed_buf_list { - struct qat_alg_buf_list sgl_hdr; + struct qat_alg_buf_list_hdr sgl_hdr; struct qat_alg_buf descriptors[QAT_MAX_BUFF_DESC]; } __packed __aligned(64); -- 2.34.1
