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net/smc: code cleanup smc_listen_work 

In smc_listen_work() the variables rc and reason_code are defined which
have the same meaning. Eliminate reason_code in favor of the shorter
name rc. No functional changes.
Rename the functions smc_check_ism() and smc_check_rdma() into
smc_find_ism_device() and smc_find_rdma_device() to make there purpose
more clear. No functional changes.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Karsten Graul 2019-04-12 12:57:28 +02:00 committed by David S. Miller
parent fba7e8ef51
commit 228bae05be
1 changed files with 14 additions and 15 deletions
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29
net/smc/af_smc.c
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@ -496,7 +496,7 @@ static int smc_connect_abort(struct smc_sock *smc, int reason_code,
/* check if there is a rdma device available for this connection. */
/* called for connect and listen */
static int smc_check_rdma(struct smc_sock *smc, struct smc_init_info *ini)
static int smc_find_rdma_device(struct smc_sock *smc, struct smc_init_info *ini)
{
/* PNET table look up: search active ib_device and port
* within same PNETID that also contains the ethernet device
@ -510,7 +510,7 @@ static int smc_check_rdma(struct smc_sock *smc, struct smc_init_info *ini)
/* check if there is an ISM device available for this connection. */
/* called for connect and listen */
static int smc_check_ism(struct smc_sock *smc, struct smc_init_info *ini)
static int smc_find_ism_device(struct smc_sock *smc, struct smc_init_info *ini)
{
/* Find ISM device with same PNETID as connecting interface */
smc_pnet_find_ism_resource(smc->clcsock->sk, ini);
@ -705,7 +705,7 @@ static int __smc_connect(struct smc_sock *smc)
SMC_CLC_DECL_GETVLANERR);
/* check if there is an ism device available */
if (!smc_check_ism(smc, &ini) &&
if (!smc_find_ism_device(smc, &ini) &&
!smc_connect_ism_vlan_setup(smc, &ini)) {
/* ISM is supported for this connection */
ism_supported = true;
@ -713,7 +713,7 @@ static int __smc_connect(struct smc_sock *smc)
}
/* check if there is a rdma device available */
if (!smc_check_rdma(smc, &ini)) {
if (!smc_find_rdma_device(smc, &ini)) {
/* RDMA is supported for this connection */
rdma_supported = true;
if (ism_supported)
@ -1228,7 +1228,6 @@ static void smc_listen_work(struct work_struct *work)
bool ism_supported = false;
u8 buf[SMC_CLC_MAX_LEN];
int local_contact = 0;
int reason_code = 0;
int rc = 0;
if (new_smc->use_fallback) {
@ -1248,10 +1247,10 @@ static void smc_listen_work(struct work_struct *work)
* wait for and receive SMC Proposal CLC message
*/
pclc = (struct smc_clc_msg_proposal *)&buf;
reason_code = smc_clc_wait_msg(new_smc, pclc, SMC_CLC_MAX_LEN,
SMC_CLC_PROPOSAL, CLC_WAIT_TIME);
if (reason_code) {
smc_listen_decline(new_smc, reason_code, 0);
rc = smc_clc_wait_msg(new_smc, pclc, SMC_CLC_MAX_LEN,
SMC_CLC_PROPOSAL, CLC_WAIT_TIME);
if (rc) {
smc_listen_decline(new_smc, rc, 0);
return;
}
@ -1283,7 +1282,7 @@ static void smc_listen_work(struct work_struct *work)
ini.is_smcd = true;
/* check if ISM is available */
if ((pclc->hdr.path == SMC_TYPE_D || pclc->hdr.path == SMC_TYPE_B) &&
!smc_check_ism(new_smc, &ini) &&
!smc_find_ism_device(new_smc, &ini) &&
!smc_listen_ism_init(new_smc, pclc, &ini, &local_contact)) {
ism_supported = true;
} else {
@ -1297,7 +1296,7 @@ static void smc_listen_work(struct work_struct *work)
if (!ism_supported &&
((pclc->hdr.path != SMC_TYPE_R && pclc->hdr.path != SMC_TYPE_B) ||
smc_vlan_by_tcpsk(new_smc->clcsock, &ini) ||
smc_check_rdma(new_smc, &ini) ||
smc_find_rdma_device(new_smc, &ini) ||
smc_listen_rdma_init(new_smc, &ini, &local_contact) ||
smc_listen_rdma_reg(new_smc, local_contact))) {
/* SMC not supported, decline */
@ -1320,12 +1319,12 @@ static void smc_listen_work(struct work_struct *work)
mutex_unlock(&smc_server_lgr_pending);
/* receive SMC Confirm CLC message */
reason_code = smc_clc_wait_msg(new_smc, &cclc, sizeof(cclc),
SMC_CLC_CONFIRM, CLC_WAIT_TIME);
if (reason_code) {
rc = smc_clc_wait_msg(new_smc, &cclc, sizeof(cclc),
SMC_CLC_CONFIRM, CLC_WAIT_TIME);
if (rc) {
if (!ism_supported)
mutex_unlock(&smc_server_lgr_pending);
smc_listen_decline(new_smc, reason_code, local_contact);
smc_listen_decline(new_smc, rc, local_contact);
return;
}