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
82ddcb040 ("[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/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,