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IB/srpt: Convert use of __constant_cpu_to_beXX to cpu_to_beXX 

In little endian cases, the macro cpu_to_be{16,32,64} unfolds to
__swab{16,32,64} which provides special case for constants. In
big endian cases, __constant_cpu_to_be{16,32,64} and
cpu_to_be{16,32,64} expand directly to the same expression. So,
replace __constant_cpu_to_be{16,32,64} with cpu_to_be{16,32,64}
with the goal of getting rid of the definitions of
__constant_cpu_to_be{16,32,64} completely.

The Coccinelle semantic patch that performs this transformation
is as follows:

@@expression x;@@

(
- __constant_cpu_to_be16(x)
+ cpu_to_be16(x)
|
- __constant_cpu_to_be32(x)
+ cpu_to_be32(x)
|
- __constant_cpu_to_be64(x)
+ cpu_to_be64(x)
)

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Vaishali Thakkar 2015-06-24 10:12:13 +05:30 committed by Doug Ledford
parent 3b8ab700af
commit b356c1c1f9
1 changed files with 35 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
drivers/infiniband/ulp/srpt/ib_srpt.c
View File

@ -302,7 +302,7 @@ static void srpt_get_iou(struct ib_dm_mad *mad)
int i; int i;
ioui = (struct ib_dm_iou_info *)mad->data; ioui = (struct ib_dm_iou_info *)mad->data;
ioui->change_id = __constant_cpu_to_be16(1); ioui->change_id = cpu_to_be16(1);
ioui->max_controllers = 16; ioui->max_controllers = 16;
/* set present for slot 1 and empty for the rest */ /* set present for slot 1 and empty for the rest */
@ -330,13 +330,13 @@ static void srpt_get_ioc(struct srpt_port *sport, u32 slot,
if (!slot || slot > 16) { if (!slot || slot > 16) {
mad->mad_hdr.status mad->mad_hdr.status
= __constant_cpu_to_be16(DM_MAD_STATUS_INVALID_FIELD); = cpu_to_be16(DM_MAD_STATUS_INVALID_FIELD);
return; return;
} }
if (slot > 2) { if (slot > 2) {
mad->mad_hdr.status mad->mad_hdr.status
= __constant_cpu_to_be16(DM_MAD_STATUS_NO_IOC); = cpu_to_be16(DM_MAD_STATUS_NO_IOC);
return; return;
} }
@ -348,10 +348,10 @@ static void srpt_get_ioc(struct srpt_port *sport, u32 slot,
iocp->device_version = cpu_to_be16(sdev->dev_attr.hw_ver); iocp->device_version = cpu_to_be16(sdev->dev_attr.hw_ver);
iocp->subsys_vendor_id = cpu_to_be32(sdev->dev_attr.vendor_id); iocp->subsys_vendor_id = cpu_to_be32(sdev->dev_attr.vendor_id);
iocp->subsys_device_id = 0x0; iocp->subsys_device_id = 0x0;
iocp->io_class = __constant_cpu_to_be16(SRP_REV16A_IB_IO_CLASS); iocp->io_class = cpu_to_be16(SRP_REV16A_IB_IO_CLASS);
iocp->io_subclass = __constant_cpu_to_be16(SRP_IO_SUBCLASS); iocp->io_subclass = cpu_to_be16(SRP_IO_SUBCLASS);
iocp->protocol = __constant_cpu_to_be16(SRP_PROTOCOL); iocp->protocol = cpu_to_be16(SRP_PROTOCOL);
iocp->protocol_version = __constant_cpu_to_be16(SRP_PROTOCOL_VERSION); iocp->protocol_version = cpu_to_be16(SRP_PROTOCOL_VERSION);
iocp->send_queue_depth = cpu_to_be16(sdev->srq_size); iocp->send_queue_depth = cpu_to_be16(sdev->srq_size);
iocp->rdma_read_depth = 4; iocp->rdma_read_depth = 4;
iocp->send_size = cpu_to_be32(srp_max_req_size); iocp->send_size = cpu_to_be32(srp_max_req_size);
@ -379,13 +379,13 @@ static void srpt_get_svc_entries(u64 ioc_guid,
if (!slot || slot > 16) { if (!slot || slot > 16) {
mad->mad_hdr.status mad->mad_hdr.status
= __constant_cpu_to_be16(DM_MAD_STATUS_INVALID_FIELD); = cpu_to_be16(DM_MAD_STATUS_INVALID_FIELD);
return; return;
} }
if (slot > 2 || lo > hi || hi > 1) { if (slot > 2 || lo > hi || hi > 1) {
mad->mad_hdr.status mad->mad_hdr.status
= __constant_cpu_to_be16(DM_MAD_STATUS_NO_IOC); = cpu_to_be16(DM_MAD_STATUS_NO_IOC);
return; return;
} }
@ -436,7 +436,7 @@ static void srpt_mgmt_method_get(struct srpt_port *sp, struct ib_mad *rq_mad,
break; break;
default: default:
rsp_mad->mad_hdr.status = rsp_mad->mad_hdr.status =
__constant_cpu_to_be16(DM_MAD_STATUS_UNSUP_METHOD_ATTR); cpu_to_be16(DM_MAD_STATUS_UNSUP_METHOD_ATTR);
break; break;
} }
} }
@ -493,11 +493,11 @@ static void srpt_mad_recv_handler(struct ib_mad_agent *mad_agent,
break; break;
case IB_MGMT_METHOD_SET: case IB_MGMT_METHOD_SET:
dm_mad->mad_hdr.status = dm_mad->mad_hdr.status =
__constant_cpu_to_be16(DM_MAD_STATUS_UNSUP_METHOD_ATTR); cpu_to_be16(DM_MAD_STATUS_UNSUP_METHOD_ATTR);
break; break;
default: default:
dm_mad->mad_hdr.status = dm_mad->mad_hdr.status =
__constant_cpu_to_be16(DM_MAD_STATUS_UNSUP_METHOD); cpu_to_be16(DM_MAD_STATUS_UNSUP_METHOD);
break; break;
} }
@ -1535,7 +1535,7 @@ static int srpt_build_cmd_rsp(struct srpt_rdma_ch *ch,
memset(srp_rsp, 0, sizeof *srp_rsp); memset(srp_rsp, 0, sizeof *srp_rsp);
srp_rsp->opcode = SRP_RSP; srp_rsp->opcode = SRP_RSP;
srp_rsp->req_lim_delta = srp_rsp->req_lim_delta =
__constant_cpu_to_be32(1 + atomic_xchg(&ch->req_lim_delta, 0)); cpu_to_be32(1 + atomic_xchg(&ch->req_lim_delta, 0));
srp_rsp->tag = tag; srp_rsp->tag = tag;
srp_rsp->status = status; srp_rsp->status = status;
@ -1585,8 +1585,8 @@ static int srpt_build_tskmgmt_rsp(struct srpt_rdma_ch *ch,
memset(srp_rsp, 0, sizeof *srp_rsp); memset(srp_rsp, 0, sizeof *srp_rsp);
srp_rsp->opcode = SRP_RSP; srp_rsp->opcode = SRP_RSP;
srp_rsp->req_lim_delta = __constant_cpu_to_be32(1 srp_rsp->req_lim_delta =
+ atomic_xchg(&ch->req_lim_delta, 0)); cpu_to_be32(1 + atomic_xchg(&ch->req_lim_delta, 0));
srp_rsp->tag = tag; srp_rsp->tag = tag;
srp_rsp->flags |= SRP_RSP_FLAG_RSPVALID; srp_rsp->flags |= SRP_RSP_FLAG_RSPVALID;
@ -1630,7 +1630,7 @@ static uint64_t srpt_unpack_lun(const uint8_t *lun, int len)
switch (len) { switch (len) {
case 8: case 8:
if ((*((__be64 *)lun) & if ((*((__be64 *)lun) &
__constant_cpu_to_be64(0x0000FFFFFFFFFFFFLL)) != 0) cpu_to_be64(0x0000FFFFFFFFFFFFLL)) != 0)
goto out_err; goto out_err;
break; break;
case 4: case 4:
@ -2449,8 +2449,8 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
} }
if (it_iu_len > srp_max_req_size || it_iu_len < 64) { if (it_iu_len > srp_max_req_size || it_iu_len < 64) {
rej->reason = __constant_cpu_to_be32( rej->reason = cpu_to_be32(
SRP_LOGIN_REJ_REQ_IT_IU_LENGTH_TOO_LARGE); SRP_LOGIN_REJ_REQ_IT_IU_LENGTH_TOO_LARGE);
ret = -EINVAL; ret = -EINVAL;
pr_err("rejected SRP_LOGIN_REQ because its" pr_err("rejected SRP_LOGIN_REQ because its"
" length (%d bytes) is out of range (%d .. %d)\n", " length (%d bytes) is out of range (%d .. %d)\n",
@ -2459,8 +2459,8 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
} }
if (!sport->enabled) { if (!sport->enabled) {
rej->reason = __constant_cpu_to_be32( rej->reason = cpu_to_be32(
SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES); SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
ret = -EINVAL; ret = -EINVAL;
pr_err("rejected SRP_LOGIN_REQ because the target port" pr_err("rejected SRP_LOGIN_REQ because the target port"
" has not yet been enabled\n"); " has not yet been enabled\n");
@ -2505,8 +2505,8 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
if (*(__be64 *)req->target_port_id != cpu_to_be64(srpt_service_guid) if (*(__be64 *)req->target_port_id != cpu_to_be64(srpt_service_guid)
|| *(__be64 *)(req->target_port_id + 8) != || *(__be64 *)(req->target_port_id + 8) !=
cpu_to_be64(srpt_service_guid)) { cpu_to_be64(srpt_service_guid)) {
rej->reason = __constant_cpu_to_be32( rej->reason = cpu_to_be32(
SRP_LOGIN_REJ_UNABLE_ASSOCIATE_CHANNEL); SRP_LOGIN_REJ_UNABLE_ASSOCIATE_CHANNEL);
ret = -ENOMEM; ret = -ENOMEM;
pr_err("rejected SRP_LOGIN_REQ because it" pr_err("rejected SRP_LOGIN_REQ because it"
" has an invalid target port identifier.\n"); " has an invalid target port identifier.\n");
@ -2515,8 +2515,8 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
ch = kzalloc(sizeof *ch, GFP_KERNEL); ch = kzalloc(sizeof *ch, GFP_KERNEL);
if (!ch) { if (!ch) {
rej->reason = __constant_cpu_to_be32( rej->reason = cpu_to_be32(
SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES); SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
pr_err("rejected SRP_LOGIN_REQ because no memory.\n"); pr_err("rejected SRP_LOGIN_REQ because no memory.\n");
ret = -ENOMEM; ret = -ENOMEM;
goto reject; goto reject;
@ -2552,8 +2552,8 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
ret = srpt_create_ch_ib(ch); ret = srpt_create_ch_ib(ch);
if (ret) { if (ret) {
rej->reason = __constant_cpu_to_be32( rej->reason = cpu_to_be32(
SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES); SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
pr_err("rejected SRP_LOGIN_REQ because creating" pr_err("rejected SRP_LOGIN_REQ because creating"
" a new RDMA channel failed.\n"); " a new RDMA channel failed.\n");
goto free_ring; goto free_ring;
@ -2561,8 +2561,7 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
ret = srpt_ch_qp_rtr(ch, ch->qp); ret = srpt_ch_qp_rtr(ch, ch->qp);
if (ret) { if (ret) {
rej->reason = __constant_cpu_to_be32( rej->reason = cpu_to_be32(SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
pr_err("rejected SRP_LOGIN_REQ because enabling" pr_err("rejected SRP_LOGIN_REQ because enabling"
" RTR failed (error code = %d)\n", ret); " RTR failed (error code = %d)\n", ret);
goto destroy_ib; goto destroy_ib;
@ -2580,15 +2579,15 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
if (!nacl) { if (!nacl) {
pr_info("Rejected login because no ACL has been" pr_info("Rejected login because no ACL has been"
" configured yet for initiator %s.\n", ch->sess_name); " configured yet for initiator %s.\n", ch->sess_name);
rej->reason = __constant_cpu_to_be32( rej->reason = cpu_to_be32(
SRP_LOGIN_REJ_CHANNEL_LIMIT_REACHED); SRP_LOGIN_REJ_CHANNEL_LIMIT_REACHED);
goto destroy_ib; goto destroy_ib;
} }
ch->sess = transport_init_session(TARGET_PROT_NORMAL); ch->sess = transport_init_session(TARGET_PROT_NORMAL);
if (IS_ERR(ch->sess)) { if (IS_ERR(ch->sess)) {
rej->reason = __constant_cpu_to_be32( rej->reason = cpu_to_be32(
SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES); SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
pr_debug("Failed to create session\n"); pr_debug("Failed to create session\n");
goto deregister_session; goto deregister_session;
} }
@ -2604,8 +2603,8 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
rsp->max_it_iu_len = req->req_it_iu_len; rsp->max_it_iu_len = req->req_it_iu_len;
rsp->max_ti_iu_len = req->req_it_iu_len; rsp->max_ti_iu_len = req->req_it_iu_len;
ch->max_ti_iu_len = it_iu_len; ch->max_ti_iu_len = it_iu_len;
rsp->buf_fmt = __constant_cpu_to_be16(SRP_BUF_FORMAT_DIRECT rsp->buf_fmt = cpu_to_be16(SRP_BUF_FORMAT_DIRECT
| SRP_BUF_FORMAT_INDIRECT); | SRP_BUF_FORMAT_INDIRECT);
rsp->req_lim_delta = cpu_to_be32(ch->rq_size); rsp->req_lim_delta = cpu_to_be32(ch->rq_size);
atomic_set(&ch->req_lim, ch->rq_size); atomic_set(&ch->req_lim, ch->rq_size);
atomic_set(&ch->req_lim_delta, 0); atomic_set(&ch->req_lim_delta, 0);
@ -2655,8 +2654,8 @@ free_ch:
reject: reject:
rej->opcode = SRP_LOGIN_REJ; rej->opcode = SRP_LOGIN_REJ;
rej->tag = req->tag; rej->tag = req->tag;
rej->buf_fmt = __constant_cpu_to_be16(SRP_BUF_FORMAT_DIRECT rej->buf_fmt = cpu_to_be16(SRP_BUF_FORMAT_DIRECT
| SRP_BUF_FORMAT_INDIRECT); | SRP_BUF_FORMAT_INDIRECT);
ib_send_cm_rej(cm_id, IB_CM_REJ_CONSUMER_DEFINED, NULL, 0, ib_send_cm_rej(cm_id, IB_CM_REJ_CONSUMER_DEFINED, NULL, 0,
(void *)rej, sizeof *rej); (void *)rej, sizeof *rej);