RDMA: Use __packed annotation instead of __attribute__ ((packed))

"__attribute__" set of macros has been standardized, have became more
potentially portable and consistent code back in v2.6.21 by commit
82ddcb04 ("[PATCH] extend the set of "__attribute__" shortcut macros").
Moreover, nowadays checkpatch.pl warns about using __attribute__((packed))
instead of __packed.

This patch converts all the "__attribute__ ((packed))" annotations to
"__packed" within the RDMA subsystem.
Signed-off-by: Erez Alfasi <ereza@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/core/cm_msgs.h

@@ -98,7 +98,7 @@ struct cm_req_msg {
 
 	u32 private_data[IB_CM_REQ_PRIVATE_DATA_SIZE / sizeof(u32)];
 
-} __attribute__ ((packed));
+} __packed;
 
 static inline __be32 cm_req_get_local_qpn(struct cm_req_msg *req_msg)
 {
@@ -423,7 +423,7 @@ enum cm_msg_response {
 
 	u8 private_data[IB_CM_MRA_PRIVATE_DATA_SIZE];
 
-} __attribute__ ((packed));
+} __packed;
 
 static inline u8 cm_mra_get_msg_mraed(struct cm_mra_msg *mra_msg)
 {
@@ -461,7 +461,7 @@ struct cm_rej_msg {
 
 	u8 private_data[IB_CM_REJ_PRIVATE_DATA_SIZE];
 
-} __attribute__ ((packed));
+} __packed;
 
 static inline u8 cm_rej_get_msg_rejected(struct cm_rej_msg *rej_msg)
 {
@@ -506,7 +506,7 @@ struct cm_rep_msg {
 
 	u8 private_data[IB_CM_REP_PRIVATE_DATA_SIZE];
 
-} __attribute__ ((packed));
+} __packed;
 
 static inline __be32 cm_rep_get_local_qpn(struct cm_rep_msg *rep_msg)
 {
@@ -614,7 +614,7 @@ struct cm_rtu_msg {
 
 	u8 private_data[IB_CM_RTU_PRIVATE_DATA_SIZE];
 
-} __attribute__ ((packed));
+} __packed;
 
 struct cm_dreq_msg {
 	struct ib_mad_hdr hdr;
@@ -626,7 +626,7 @@ struct cm_dreq_msg {
 
 	u8 private_data[IB_CM_DREQ_PRIVATE_DATA_SIZE];
 
-} __attribute__ ((packed));
+} __packed;
 
 static inline __be32 cm_dreq_get_remote_qpn(struct cm_dreq_msg *dreq_msg)
 {
@@ -647,7 +647,7 @@ struct cm_drep_msg {
 
 	u8 private_data[IB_CM_DREP_PRIVATE_DATA_SIZE];
 
-} __attribute__ ((packed));
+} __packed;
 
 struct cm_lap_msg {
 	struct ib_mad_hdr hdr;
@@ -675,7 +675,7 @@ struct cm_lap_msg {
 	u8 offset63;
 
 	u8 private_data[IB_CM_LAP_PRIVATE_DATA_SIZE];
-} __attribute__  ((packed));
+} __packed;
 
 static inline __be32 cm_lap_get_remote_qpn(struct cm_lap_msg *lap_msg)
 {
@@ -784,7 +784,7 @@ struct cm_apr_msg {
 	u8 info[IB_CM_APR_INFO_LENGTH];
 
 	u8 private_data[IB_CM_APR_PRIVATE_DATA_SIZE];
-} __attribute__ ((packed));
+} __packed;
 
 struct cm_sidr_req_msg {
 	struct ib_mad_hdr hdr;
@@ -795,7 +795,7 @@ struct cm_sidr_req_msg {
 	__be64 service_id;
 
 	u32 private_data[IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE / sizeof(u32)];
-} __attribute__ ((packed));
+} __packed;
 
 struct cm_sidr_rep_msg {
 	struct ib_mad_hdr hdr;
@@ -811,7 +811,7 @@ struct cm_sidr_rep_msg {
 	u8 info[IB_CM_SIDR_REP_INFO_LENGTH];
 
 	u8 private_data[IB_CM_SIDR_REP_PRIVATE_DATA_SIZE];
-} __attribute__ ((packed));
+} __packed;
 
 static inline __be32 cm_sidr_rep_get_qpn(struct cm_sidr_rep_msg *sidr_rep_msg)
 {

drivers/infiniband/core/mad_priv.h

@@ -73,14 +73,14 @@ struct ib_mad_private_header {
 	struct ib_mad_recv_wc recv_wc;
 	struct ib_wc wc;
 	u64 mapping;
-} __attribute__ ((packed));
+} __packed;
 
 struct ib_mad_private {
 	struct ib_mad_private_header header;
 	size_t mad_size;
 	struct ib_grh grh;
 	u8 mad[0];
-} __attribute__ ((packed));
+} __packed;
 
 struct ib_rmpp_segment {
 	struct list_head list;

drivers/infiniband/hw/cxgb3/cxio_wr.h

@@ -64,7 +64,7 @@ enum t3_wr_flags {
 	T3_SOLICITED_EVENT_FLAG = 0x04,
 	T3_READ_FENCE_FLAG = 0x08,
 	T3_LOCAL_FENCE_FLAG = 0x10
-} __attribute__ ((packed));
+} __packed;
 
 enum t3_wr_opcode {
 	T3_WR_BP = FW_WROPCODE_RI_BYPASS,
@@ -77,7 +77,7 @@ enum t3_wr_opcode {
 	T3_WR_INIT = FW_WROPCODE_RI_RDMA_INIT,
 	T3_WR_QP_MOD = FW_WROPCODE_RI_MODIFY_QP,
 	T3_WR_FASTREG = FW_WROPCODE_RI_FASTREGISTER_MR
-} __attribute__ ((packed));
+} __packed;
 
 enum t3_rdma_opcode {
 	T3_RDMA_WRITE,		/* IETF RDMAP v1.0 ... */
@@ -95,7 +95,7 @@ enum t3_rdma_opcode {
 	T3_QP_MOD,
 	T3_BYPASS,
 	T3_RDMA_READ_REQ_WITH_INV,
-} __attribute__ ((packed));
+} __packed;
 
 static inline enum t3_rdma_opcode wr2opcode(enum t3_wr_opcode wrop)
 {
@@ -306,7 +306,7 @@ enum t3_mpa_attrs {
 	uP_RI_MPA_TX_MARKER_ENABLE = 0x2,
 	uP_RI_MPA_CRC_ENABLE = 0x4,
 	uP_RI_MPA_IETF_ENABLE = 0x8
-} __attribute__ ((packed));
+} __packed;
 
 enum t3_qp_caps {
 	uP_RI_QP_RDMA_READ_ENABLE = 0x01,
@@ -314,7 +314,7 @@ enum t3_qp_caps {
 	uP_RI_QP_BIND_ENABLE = 0x04,
 	uP_RI_QP_FAST_REGISTER_ENABLE = 0x08,
 	uP_RI_QP_STAG0_ENABLE = 0x10
-} __attribute__ ((packed));
+} __packed;
 
 enum rdma_init_rtr_types {
 	RTR_READ = 1,

drivers/infiniband/hw/mthca/mthca_cq.c

@@ -77,7 +77,7 @@ struct mthca_cq_context {
 	__be32 ci_db;		/* Arbel only */
 	__be32 state_db;	/* Arbel only */
 	u32    reserved;
-} __attribute__((packed));
+} __packed;
 
 #define MTHCA_CQ_STATUS_OK          ( 0 << 28)
 #define MTHCA_CQ_STATUS_OVERFLOW    ( 9 << 28)

drivers/infiniband/hw/mthca/mthca_eq.c

@@ -63,7 +63,7 @@ struct mthca_eq_context {
 	__be32 consumer_index;
 	__be32 producer_index;
 	u32    reserved3[4];
-} __attribute__((packed));
+} __packed;
 
 #define MTHCA_EQ_STATUS_OK          ( 0 << 28)
 #define MTHCA_EQ_STATUS_OVERFLOW    ( 9 << 28)
@@ -130,7 +130,7 @@ struct mthca_eqe {
 		u32 raw[6];
 		struct {
 			__be32 cqn;
-		} __attribute__((packed)) comp;
+		} __packed comp;
 		struct {
 			u16    reserved1;
 			__be16 token;
@@ -138,27 +138,27 @@ struct mthca_eqe {
 			u8     reserved3[3];
 			u8     status;
 			__be64 out_param;
-		} __attribute__((packed)) cmd;
+		} __packed cmd;
 		struct {
 			__be32 qpn;
-		} __attribute__((packed)) qp;
+		} __packed qp;
 		struct {
 			__be32 srqn;
-		} __attribute__((packed)) srq;
+		} __packed srq;
 		struct {
 			__be32 cqn;
 			u32    reserved1;
 			u8     reserved2[3];
 			u8     syndrome;
-		} __attribute__((packed)) cq_err;
+		} __packed cq_err;
 		struct {
 			u32    reserved1[2];
 			__be32 port;
-		} __attribute__((packed)) port_change;
+		} __packed port_change;
 	} event;
 	u8 reserved3[3];
 	u8 owner;
-} __attribute__((packed));
+} __packed;
 
 #define  MTHCA_EQ_ENTRY_OWNER_SW      (0 << 7)
 #define  MTHCA_EQ_ENTRY_OWNER_HW      (1 << 7)

drivers/infiniband/hw/mthca/mthca_mr.c

@@ -60,7 +60,7 @@ struct mthca_mpt_entry {
 	__be64 mtt_seg;
 	__be32 mtt_sz;		/* Arbel only */
 	u32    reserved[2];
-} __attribute__((packed));
+} __packed;
 
 #define MTHCA_MPT_FLAG_SW_OWNS       (0xfUL << 28)
 #define MTHCA_MPT_FLAG_MIO           (1 << 17)

drivers/infiniband/hw/mthca/mthca_qp.c

@@ -115,7 +115,7 @@ struct mthca_qp_path {
 	u8     hop_limit;
 	__be32 sl_tclass_flowlabel;
 	u8     rgid[16];
-} __attribute__((packed));
+} __packed;
 
 struct mthca_qp_context {
 	__be32 flags;
@@ -154,14 +154,14 @@ struct mthca_qp_context {
 	__be16 rq_wqe_counter;	/* reserved on Tavor */
 	__be16 sq_wqe_counter;	/* reserved on Tavor */
 	u32    reserved3[18];
-} __attribute__((packed));
+} __packed;
 
 struct mthca_qp_param {
 	__be32 opt_param_mask;
 	u32    reserved1;
 	struct mthca_qp_context context;
 	u32    reserved2[62];
-} __attribute__((packed));
+} __packed;
 
 enum {
 	MTHCA_QP_OPTPAR_ALT_ADDR_PATH     = 1 << 0,

drivers/infiniband/sw/rxe/rxe_hdr.h

@@ -643,7 +643,7 @@ struct rxe_atmeth {
 	__be32			rkey;
 	__be64			swap_add;
 	__be64			comp;
-} __attribute__((__packed__));
+} __packed;
 
 static inline u64 __atmeth_va(void *arg)
 {

drivers/infiniband/ulp/iser/iscsi_iser.h

@@ -311,7 +311,7 @@ struct iser_login_desc {
 	u64                          rsp_dma;
 	struct ib_sge                sge;
 	struct ib_cqe		     cqe;
-} __attribute__((packed));
+} __packed;
 
 struct iser_conn;
 struct ib_conn;

include/rdma/ib_mad.h

@@ -198,7 +198,7 @@ struct ib_sa_hdr {
 	__be16			attr_offset;
 	__be16			reserved;
 	ib_sa_comp_mask		comp_mask;
-} __attribute__ ((packed));
+} __packed;
 
 struct ib_mad {
 	struct ib_mad_hdr	mad_hdr;
@@ -227,7 +227,7 @@ struct ib_sa_mad {
 	struct ib_rmpp_hdr	rmpp_hdr;
 	struct ib_sa_hdr	sa_hdr;
 	u8			data[IB_MGMT_SA_DATA];
-} __attribute__ ((packed));
+} __packed;
 
 struct ib_vendor_mad {
 	struct ib_mad_hdr	mad_hdr;

include/rdma/ib_smi.h

@@ -61,7 +61,7 @@ struct ib_smp {
 	u8	data[IB_SMP_DATA_SIZE];
 	u8	initial_path[IB_SMP_MAX_PATH_HOPS];
 	u8	return_path[IB_SMP_MAX_PATH_HOPS];
-} __attribute__ ((packed));
+} __packed;
 
 #define IB_SMP_DIRECTION			cpu_to_be16(0x8000)
 

include/rdma/opa_port_info.h

@@ -413,6 +413,6 @@ struct opa_port_info {
 	u8     local_port_num;
 	u8     reserved12;
 	u8     reserved13;                       /* was guid_cap */
-} __attribute__ ((packed));
+} __packed;
 
 #endif /* OPA_PORT_INFO_H */

include/rdma/opa_smi.h

@@ -98,7 +98,7 @@ struct opa_smp {
 
 struct opa_node_description {
 	u8 data[64];
-} __attribute__ ((packed));
+} __packed;
 
 struct opa_node_info {
 	u8      base_version;
@@ -114,7 +114,7 @@ struct opa_node_info {
 	__be32  revision;
 	u8      local_port_num;
 	u8      vendor_id[3];   /* network byte order */
-} __attribute__ ((packed));
+} __packed;
 
 #define OPA_PARTITION_TABLE_BLK_SIZE 32