net/smc: cleanup buffer usage in smc_listen_work()
coccinelle informs about net/smc/af_smc.c:1770:10-11: WARNING: opportunity for kzfree/kvfree_sensitive Its not that kzfree() would help here, the memset() is done to prepare the buffer for another socket receive. Fix that warning message by reordering the calls, while at it eliminate the unneeded variable cclc2 and use sizeof(*buf) as above in the same function. No functional changes. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@ -1664,7 +1664,6 @@ static void smc_listen_work(struct work_struct *work)
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smc_listen_work);
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u8 version = smc_ism_v2_capable ? SMC_V2 : SMC_V1;
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struct socket *newclcsock = new_smc->clcsock;
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struct smc_clc_msg_accept_confirm_v2 *cclc2;
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struct smc_clc_msg_accept_confirm *cclc;
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struct smc_clc_msg_proposal_area *buf;
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struct smc_clc_msg_proposal *pclc;
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@ -1740,11 +1739,9 @@ static void smc_listen_work(struct work_struct *work)
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mutex_unlock(&smc_server_lgr_pending);
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/* receive SMC Confirm CLC message */
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cclc2 = (struct smc_clc_msg_accept_confirm_v2 *)buf;
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cclc = (struct smc_clc_msg_accept_confirm *)cclc2;
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memset(buf, 0, sizeof(struct smc_clc_msg_proposal_area));
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rc = smc_clc_wait_msg(new_smc, cclc2,
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sizeof(struct smc_clc_msg_proposal_area),
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memset(buf, 0, sizeof(*buf));
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cclc = (struct smc_clc_msg_accept_confirm *)buf;
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rc = smc_clc_wait_msg(new_smc, cclc, sizeof(*buf),
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SMC_CLC_CONFIRM, CLC_WAIT_TIME);
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if (rc) {
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if (!ini->is_smcd)
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