Re: [PATCH 5/8] scsi: lpfc: change snprintf to scnprintf for possible overflow
From: Kees Cook
Date: Mon Jan 14 2019 - 20:15:28 EST
On Sat, Jan 12, 2019 at 7:29 AM Willy Tarreau <w@xxxxxx> wrote:
>
> From: Silvio Cesare <silvio.cesare@xxxxxxxxx>
>
> Change snprintf to scnprintf. There are generally two cases where using
> snprintf causes problems.
>
> 1) Uses of size += snprintf(buf, SIZE - size, fmt, ...)
> In this case, if snprintf would have written more characters than what the
> buffer size (SIZE) is, then size will end up larger than SIZE. In later
> uses of snprintf, SIZE - size will result in a negative number, leading
> to problems. Note that size might already be too large by using
> size = snprintf before the code reaches a case of size += snprintf.
>
> 2) If size is ultimately used as a length parameter for a copy back to user
> space, then it will potentially allow for a buffer overflow and information
> disclosure when size is greater than SIZE. When the size is used to index
> the buffer directly, we can have memory corruption. This also means when
> size = snprintf... is used, it may also cause problems since size may become
> large. Copying to userspace is mitigated by the HARDENED_USERCOPY kernel
> configuration.
>
> The solution to these issues is to use scnprintf which returns the number of
> characters actually written to the buffer, so the size variable will never
> exceed SIZE.
>
> Signed-off-by: Silvio Cesare <silvio.cesare@xxxxxxxxx>
> Cc: James Smart <james.smart@xxxxxxxxxxxx>
> Cc: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>
> Cc: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> Cc: Kees Cook <keescook@xxxxxxxxxxxx>
> Cc: Will Deacon <will.deacon@xxxxxxx>
> Cc: Greg KH <greg@xxxxxxxxx>
> Signed-off-by: Willy Tarreau <w@xxxxxx>
I think this needs Cc: stable.
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
-Kees
>
> ---
> drivers/scsi/lpfc/lpfc_debugfs.c | 450 +++++++++++++++----------------
> 1 file changed, 225 insertions(+), 225 deletions(-)
>
> diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
> index 34d311a7dbef..218a74b9297a 100644
> --- a/drivers/scsi/lpfc/lpfc_debugfs.c
> +++ b/drivers/scsi/lpfc/lpfc_debugfs.c
> @@ -170,7 +170,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
> snprintf(buffer,
> LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
> dtp->seq_cnt, ms, dtp->fmt);
> - len += snprintf(buf+len, size-len, buffer,
> + len += scnprintf(buf+len, size-len, buffer,
> dtp->data1, dtp->data2, dtp->data3);
> }
> for (i = 0; i < index; i++) {
> @@ -181,7 +181,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
> snprintf(buffer,
> LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
> dtp->seq_cnt, ms, dtp->fmt);
> - len += snprintf(buf+len, size-len, buffer,
> + len += scnprintf(buf+len, size-len, buffer,
> dtp->data1, dtp->data2, dtp->data3);
> }
>
> @@ -236,7 +236,7 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
> snprintf(buffer,
> LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
> dtp->seq_cnt, ms, dtp->fmt);
> - len += snprintf(buf+len, size-len, buffer,
> + len += scnprintf(buf+len, size-len, buffer,
> dtp->data1, dtp->data2, dtp->data3);
> }
> for (i = 0; i < index; i++) {
> @@ -247,7 +247,7 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
> snprintf(buffer,
> LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
> dtp->seq_cnt, ms, dtp->fmt);
> - len += snprintf(buf+len, size-len, buffer,
> + len += scnprintf(buf+len, size-len, buffer,
> dtp->data1, dtp->data2, dtp->data3);
> }
>
> @@ -307,7 +307,7 @@ lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
>
> i = lpfc_debugfs_last_hbq;
>
> - len += snprintf(buf+len, size-len, "HBQ %d Info\n", i);
> + len += scnprintf(buf+len, size-len, "HBQ %d Info\n", i);
>
> hbqs = &phba->hbqs[i];
> posted = 0;
> @@ -315,21 +315,21 @@ lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
> posted++;
>
> hip = lpfc_hbq_defs[i];
> - len += snprintf(buf+len, size-len,
> + len += scnprintf(buf+len, size-len,
> "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n",
> hip->hbq_index, hip->profile, hip->rn,
> hip->buffer_count, hip->init_count, hip->add_count, posted);
>
> raw_index = phba->hbq_get[i];
> getidx = le32_to_cpu(raw_index);
> - len += snprintf(buf+len, size-len,
> + len += scnprintf(buf+len, size-len,
> "entries:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n",
> hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx,
> hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx);
>
> hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt;
> for (j=0; j<hbqs->entry_count; j++) {
> - len += snprintf(buf+len, size-len,
> + len += scnprintf(buf+len, size-len,
> "%03d: %08x %04x %05x ", j,
> le32_to_cpu(hbqe->bde.addrLow),
> le32_to_cpu(hbqe->bde.tus.w),
> @@ -341,14 +341,14 @@ lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
> low = hbqs->hbqPutIdx - posted;
> if (low >= 0) {
> if ((j >= hbqs->hbqPutIdx) || (j < low)) {
> - len += snprintf(buf+len, size-len, "Unused\n");
> + len += scnprintf(buf+len, size-len, "Unused\n");
> goto skipit;
> }
> }
> else {
> if ((j >= hbqs->hbqPutIdx) &&
> (j < (hbqs->entry_count+low))) {
> - len += snprintf(buf+len, size-len, "Unused\n");
> + len += scnprintf(buf+len, size-len, "Unused\n");
> goto skipit;
> }
> }
> @@ -358,7 +358,7 @@ lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
> hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
> phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff);
> if (phys == le32_to_cpu(hbqe->bde.addrLow)) {
> - len += snprintf(buf+len, size-len,
> + len += scnprintf(buf+len, size-len,
> "Buf%d: %p %06x\n", i,
> hbq_buf->dbuf.virt, hbq_buf->tag);
> found = 1;
> @@ -367,7 +367,7 @@ lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
> i++;
> }
> if (!found) {
> - len += snprintf(buf+len, size-len, "No DMAinfo?\n");
> + len += scnprintf(buf+len, size-len, "No DMAinfo?\n");
> }
> skipit:
> hbqe++;
> @@ -413,7 +413,7 @@ lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size)
> off = 0;
> spin_lock_irq(&phba->hbalock);
>
> - len += snprintf(buf+len, size-len, "HBA SLIM\n");
> + len += scnprintf(buf+len, size-len, "HBA SLIM\n");
> lpfc_memcpy_from_slim(buffer,
> phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024);
>
> @@ -427,7 +427,7 @@ lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size)
>
> i = 1024;
> while (i > 0) {
> - len += snprintf(buf+len, size-len,
> + len += scnprintf(buf+len, size-len,
> "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
> off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
> *(ptr+5), *(ptr+6), *(ptr+7));
> @@ -471,11 +471,11 @@ lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
> off = 0;
> spin_lock_irq(&phba->hbalock);
>
> - len += snprintf(buf+len, size-len, "SLIM Mailbox\n");
> + len += scnprintf(buf+len, size-len, "SLIM Mailbox\n");
> ptr = (uint32_t *)phba->slim2p.virt;
> i = sizeof(MAILBOX_t);
> while (i > 0) {
> - len += snprintf(buf+len, size-len,
> + len += scnprintf(buf+len, size-len,
> "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
> off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
> *(ptr+5), *(ptr+6), *(ptr+7));
> @@ -484,11 +484,11 @@ lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
> off += (8 * sizeof(uint32_t));
> }
>
> - len += snprintf(buf+len, size-len, "SLIM PCB\n");
> + len += scnprintf(buf+len, size-len, "SLIM PCB\n");
> ptr = (uint32_t *)phba->pcb;
> i = sizeof(PCB_t);
> while (i > 0) {
> - len += snprintf(buf+len, size-len,
> + len += scnprintf(buf+len, size-len,
> "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
> off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
> *(ptr+5), *(ptr+6), *(ptr+7));
> @@ -501,7 +501,7 @@ lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
> for (i = 0; i < 4; i++) {
> pgpp = &phba->port_gp[i];
> pring = &psli->sli3_ring[i];
> - len += snprintf(buf+len, size-len,
> + len += scnprintf(buf+len, size-len,
> "Ring %d: CMD GetInx:%d "
> "(Max:%d Next:%d "
> "Local:%d flg:x%x) "
> @@ -518,7 +518,7 @@ lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
> word1 = readl(phba->CAregaddr);
> word2 = readl(phba->HSregaddr);
> word3 = readl(phba->HCregaddr);
> - len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x "
> + len += scnprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x "
> "HC:%08x\n", word0, word1, word2, word3);
> }
> spin_unlock_irq(&phba->hbalock);
> @@ -556,12 +556,12 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
> cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
> outio = 0;
>
> - len += snprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n");
> + len += scnprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n");
> spin_lock_irq(shost->host_lock);
> list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
> iocnt = 0;
> if (!cnt) {
> - len += snprintf(buf+len, size-len,
> + len += scnprintf(buf+len, size-len,
> "Missing Nodelist Entries\n");
> break;
> }
> @@ -599,61 +599,61 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
> default:
> statep = "UNKNOWN";
> }
> - len += snprintf(buf+len, size-len, "%s DID:x%06x ",
> + len += scnprintf(buf+len, size-len, "%s DID:x%06x ",
> statep, ndlp->nlp_DID);
> - len += snprintf(buf+len, size-len,
> + len += scnprintf(buf+len, size-len,
> "WWPN x%llx ",
> wwn_to_u64(ndlp->nlp_portname.u.wwn));
> - len += snprintf(buf+len, size-len,
> + len += scnprintf(buf+len, size-len,
> "WWNN x%llx ",
> wwn_to_u64(ndlp->nlp_nodename.u.wwn));
> if (ndlp->nlp_flag & NLP_RPI_REGISTERED)
> - len += snprintf(buf+len, size-len, "RPI:%03d ",
> + len += scnprintf(buf+len, size-len, "RPI:%03d ",
> ndlp->nlp_rpi);
> else
> - len += snprintf(buf+len, size-len, "RPI:none ");
> - len += snprintf(buf+len, size-len, "flag:x%08x ",
> + len += scnprintf(buf+len, size-len, "RPI:none ");
> + len += scnprintf(buf+len, size-len, "flag:x%08x ",
> ndlp->nlp_flag);
> if (!ndlp->nlp_type)
> - len += snprintf(buf+len, size-len, "UNKNOWN_TYPE ");
> + len += scnprintf(buf+len, size-len, "UNKNOWN_TYPE ");
> if (ndlp->nlp_type & NLP_FC_NODE)
> - len += snprintf(buf+len, size-len, "FC_NODE ");
> + len += scnprintf(buf+len, size-len, "FC_NODE ");
> if (ndlp->nlp_type & NLP_FABRIC) {
> - len += snprintf(buf+len, size-len, "FABRIC ");
> + len += scnprintf(buf+len, size-len, "FABRIC ");
> iocnt = 0;
> }
> if (ndlp->nlp_type & NLP_FCP_TARGET)
> - len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ",
> + len += scnprintf(buf+len, size-len, "FCP_TGT sid:%d ",
> ndlp->nlp_sid);
> if (ndlp->nlp_type & NLP_FCP_INITIATOR)
> - len += snprintf(buf+len, size-len, "FCP_INITIATOR ");
> + len += scnprintf(buf+len, size-len, "FCP_INITIATOR ");
> if (ndlp->nlp_type & NLP_NVME_TARGET)
> - len += snprintf(buf + len,
> + len += scnprintf(buf + len,
> size - len, "NVME_TGT sid:%d ",
> NLP_NO_SID);
> if (ndlp->nlp_type & NLP_NVME_INITIATOR)
> - len += snprintf(buf + len,
> + len += scnprintf(buf + len,
> size - len, "NVME_INITIATOR ");
> - len += snprintf(buf+len, size-len, "usgmap:%x ",
> + len += scnprintf(buf+len, size-len, "usgmap:%x ",
> ndlp->nlp_usg_map);
> - len += snprintf(buf+len, size-len, "refcnt:%x",
> + len += scnprintf(buf+len, size-len, "refcnt:%x",
> kref_read(&ndlp->kref));
> if (iocnt) {
> i = atomic_read(&ndlp->cmd_pending);
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> " OutIO:x%x Qdepth x%x",
> i, ndlp->cmd_qdepth);
> outio += i;
> }
> - len += snprintf(buf+len, size-len, "\n");
> + len += scnprintf(buf+len, size-len, "\n");
> }
> spin_unlock_irq(shost->host_lock);
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "\nOutstanding IO x%x\n", outio);
>
> if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) {
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "\nNVME Targetport Entry ...\n");
>
> /* Port state is only one of two values for now. */
> @@ -661,18 +661,18 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
> statep = "REGISTERED";
> else
> statep = "INIT";
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "TGT WWNN x%llx WWPN x%llx State %s\n",
> wwn_to_u64(vport->fc_nodename.u.wwn),
> wwn_to_u64(vport->fc_portname.u.wwn),
> statep);
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> " Targetport DID x%06x\n",
> phba->targetport->port_id);
> goto out_exit;
> }
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "\nNVME Lport/Rport Entries ...\n");
>
> localport = vport->localport;
> @@ -687,11 +687,11 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
> else
> statep = "UNKNOWN ";
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "Lport DID x%06x PortState %s\n",
> localport->port_id, statep);
>
> - len += snprintf(buf + len, size - len, "\tRport List:\n");
> + len += scnprintf(buf + len, size - len, "\tRport List:\n");
> list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
> /* local short-hand pointer. */
> spin_lock(&phba->hbalock);
> @@ -718,32 +718,32 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
> }
>
> /* Tab in to show lport ownership. */
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "\t%s Port ID:x%06x ",
> statep, nrport->port_id);
> - len += snprintf(buf + len, size - len, "WWPN x%llx ",
> + len += scnprintf(buf + len, size - len, "WWPN x%llx ",
> nrport->port_name);
> - len += snprintf(buf + len, size - len, "WWNN x%llx ",
> + len += scnprintf(buf + len, size - len, "WWNN x%llx ",
> nrport->node_name);
>
> /* An NVME rport can have multiple roles. */
> if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR)
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "INITIATOR ");
> if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET)
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "TARGET ");
> if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY)
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "DISCSRVC ");
> if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR |
> FC_PORT_ROLE_NVME_TARGET |
> FC_PORT_ROLE_NVME_DISCOVERY))
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "UNKNOWN ROLE x%x",
> nrport->port_role);
> /* Terminate the string. */
> - len += snprintf(buf + len, size - len, "\n");
> + len += scnprintf(buf + len, size - len, "\n");
> }
>
> spin_unlock_irq(shost->host_lock);
> @@ -782,35 +782,35 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
> if (!phba->targetport)
> return len;
> tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "\nNVME Targetport Statistics\n");
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "LS: Rcv %08x Drop %08x Abort %08x\n",
> atomic_read(&tgtp->rcv_ls_req_in),
> atomic_read(&tgtp->rcv_ls_req_drop),
> atomic_read(&tgtp->xmt_ls_abort));
> if (atomic_read(&tgtp->rcv_ls_req_in) !=
> atomic_read(&tgtp->rcv_ls_req_out)) {
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "Rcv LS: in %08x != out %08x\n",
> atomic_read(&tgtp->rcv_ls_req_in),
> atomic_read(&tgtp->rcv_ls_req_out));
> }
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "LS: Xmt %08x Drop %08x Cmpl %08x\n",
> atomic_read(&tgtp->xmt_ls_rsp),
> atomic_read(&tgtp->xmt_ls_drop),
> atomic_read(&tgtp->xmt_ls_rsp_cmpl));
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "LS: RSP Abort %08x xb %08x Err %08x\n",
> atomic_read(&tgtp->xmt_ls_rsp_aborted),
> atomic_read(&tgtp->xmt_ls_rsp_xb_set),
> atomic_read(&tgtp->xmt_ls_rsp_error));
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "FCP: Rcv %08x Defer %08x Release %08x "
> "Drop %08x\n",
> atomic_read(&tgtp->rcv_fcp_cmd_in),
> @@ -820,13 +820,13 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
>
> if (atomic_read(&tgtp->rcv_fcp_cmd_in) !=
> atomic_read(&tgtp->rcv_fcp_cmd_out)) {
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "Rcv FCP: in %08x != out %08x\n",
> atomic_read(&tgtp->rcv_fcp_cmd_in),
> atomic_read(&tgtp->rcv_fcp_cmd_out));
> }
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "FCP Rsp: read %08x readrsp %08x "
> "write %08x rsp %08x\n",
> atomic_read(&tgtp->xmt_fcp_read),
> @@ -834,31 +834,31 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
> atomic_read(&tgtp->xmt_fcp_write),
> atomic_read(&tgtp->xmt_fcp_rsp));
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "FCP Rsp Cmpl: %08x err %08x drop %08x\n",
> atomic_read(&tgtp->xmt_fcp_rsp_cmpl),
> atomic_read(&tgtp->xmt_fcp_rsp_error),
> atomic_read(&tgtp->xmt_fcp_rsp_drop));
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "FCP Rsp Abort: %08x xb %08x xricqe %08x\n",
> atomic_read(&tgtp->xmt_fcp_rsp_aborted),
> atomic_read(&tgtp->xmt_fcp_rsp_xb_set),
> atomic_read(&tgtp->xmt_fcp_xri_abort_cqe));
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "ABORT: Xmt %08x Cmpl %08x\n",
> atomic_read(&tgtp->xmt_fcp_abort),
> atomic_read(&tgtp->xmt_fcp_abort_cmpl));
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x",
> atomic_read(&tgtp->xmt_abort_sol),
> atomic_read(&tgtp->xmt_abort_unsol),
> atomic_read(&tgtp->xmt_abort_rsp),
> atomic_read(&tgtp->xmt_abort_rsp_error));
>
> - len += snprintf(buf + len, size - len, "\n");
> + len += scnprintf(buf + len, size - len, "\n");
>
> cnt = 0;
> spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
> @@ -869,7 +869,7 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
> }
> spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
> if (cnt) {
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "ABORT: %d ctx entries\n", cnt);
> spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
> list_for_each_entry_safe(ctxp, next_ctxp,
> @@ -877,7 +877,7 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
> list) {
> if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ))
> break;
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "Entry: oxid %x state %x "
> "flag %x\n",
> ctxp->oxid, ctxp->state,
> @@ -891,7 +891,7 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
> tot += atomic_read(&tgtp->xmt_fcp_release);
> tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "IO_CTX: %08x WAIT: cur %08x tot %08x\n"
> "CTX Outstanding %08llx\n",
> phba->sli4_hba.nvmet_xri_cnt,
> @@ -909,10 +909,10 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
> if (!lport)
> return len;
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "\nNVME Lport Statistics\n");
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "LS: Xmt %016x Cmpl %016x\n",
> atomic_read(&lport->fc4NvmeLsRequests),
> atomic_read(&lport->fc4NvmeLsCmpls));
> @@ -936,20 +936,20 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
> if (i >= 32)
> continue;
>
> - len += snprintf(buf + len, PAGE_SIZE - len,
> + len += scnprintf(buf + len, PAGE_SIZE - len,
> "FCP (%d): Rd %016llx Wr %016llx "
> "IO %016llx ",
> i, data1, data2, data3);
> - len += snprintf(buf + len, PAGE_SIZE - len,
> + len += scnprintf(buf + len, PAGE_SIZE - len,
> "Cmpl %016llx OutIO %016llx\n",
> tot, ((data1 + data2 + data3) - tot));
> }
> - len += snprintf(buf + len, PAGE_SIZE - len,
> + len += scnprintf(buf + len, PAGE_SIZE - len,
> "Total FCP Cmpl %016llx Issue %016llx "
> "OutIO %016llx\n",
> totin, totout, totout - totin);
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "LS Xmt Err: Abrt %08x Err %08x "
> "Cmpl Err: xb %08x Err %08x\n",
> atomic_read(&lport->xmt_ls_abort),
> @@ -957,7 +957,7 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
> atomic_read(&lport->cmpl_ls_xb),
> atomic_read(&lport->cmpl_ls_err));
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "FCP Xmt Err: noxri %06x nondlp %06x "
> "qdepth %06x wqerr %06x err %06x Abrt %06x\n",
> atomic_read(&lport->xmt_fcp_noxri),
> @@ -967,7 +967,7 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
> atomic_read(&lport->xmt_fcp_err),
> atomic_read(&lport->xmt_fcp_abort));
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "FCP Cmpl Err: xb %08x Err %08x\n",
> atomic_read(&lport->cmpl_fcp_xb),
> atomic_read(&lport->cmpl_fcp_err));
> @@ -999,58 +999,58 @@ lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size)
>
> if (phba->nvmet_support == 0) {
> /* NVME Initiator */
> - len += snprintf(buf + len, PAGE_SIZE - len,
> + len += scnprintf(buf + len, PAGE_SIZE - len,
> "ktime %s: Total Samples: %lld\n",
> (phba->ktime_on ? "Enabled" : "Disabled"),
> phba->ktime_data_samples);
> if (phba->ktime_data_samples == 0)
> return len;
>
> - len += snprintf(
> + len += scnprintf(
> buf + len, PAGE_SIZE - len,
> "Segment 1: Last NVME Cmd cmpl "
> "done -to- Start of next NVME cnd (in driver)\n");
> - len += snprintf(
> + len += scnprintf(
> buf + len, PAGE_SIZE - len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg1_total,
> phba->ktime_data_samples),
> phba->ktime_seg1_min,
> phba->ktime_seg1_max);
> - len += snprintf(
> + len += scnprintf(
> buf + len, PAGE_SIZE - len,
> "Segment 2: Driver start of NVME cmd "
> "-to- Firmware WQ doorbell\n");
> - len += snprintf(
> + len += scnprintf(
> buf + len, PAGE_SIZE - len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg2_total,
> phba->ktime_data_samples),
> phba->ktime_seg2_min,
> phba->ktime_seg2_max);
> - len += snprintf(
> + len += scnprintf(
> buf + len, PAGE_SIZE - len,
> "Segment 3: Firmware WQ doorbell -to- "
> "MSI-X ISR cmpl\n");
> - len += snprintf(
> + len += scnprintf(
> buf + len, PAGE_SIZE - len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg3_total,
> phba->ktime_data_samples),
> phba->ktime_seg3_min,
> phba->ktime_seg3_max);
> - len += snprintf(
> + len += scnprintf(
> buf + len, PAGE_SIZE - len,
> "Segment 4: MSI-X ISR cmpl -to- "
> "NVME cmpl done\n");
> - len += snprintf(
> + len += scnprintf(
> buf + len, PAGE_SIZE - len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg4_total,
> phba->ktime_data_samples),
> phba->ktime_seg4_min,
> phba->ktime_seg4_max);
> - len += snprintf(
> + len += scnprintf(
> buf + len, PAGE_SIZE - len,
> "Total IO avg time: %08lld\n",
> div_u64(phba->ktime_seg1_total +
> @@ -1062,7 +1062,7 @@ lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size)
> }
>
> /* NVME Target */
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "ktime %s: Total Samples: %lld %lld\n",
> (phba->ktime_on ? "Enabled" : "Disabled"),
> phba->ktime_data_samples,
> @@ -1070,46 +1070,46 @@ lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size)
> if (phba->ktime_data_samples == 0)
> return len;
>
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "Segment 1: MSI-X ISR Rcv cmd -to- "
> "cmd pass to NVME Layer\n");
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg1_total,
> phba->ktime_data_samples),
> phba->ktime_seg1_min,
> phba->ktime_seg1_max);
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "Segment 2: cmd pass to NVME Layer- "
> "-to- Driver rcv cmd OP (action)\n");
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg2_total,
> phba->ktime_data_samples),
> phba->ktime_seg2_min,
> phba->ktime_seg2_max);
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "Segment 3: Driver rcv cmd OP -to- "
> "Firmware WQ doorbell: cmd\n");
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg3_total,
> phba->ktime_data_samples),
> phba->ktime_seg3_min,
> phba->ktime_seg3_max);
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "Segment 4: Firmware WQ doorbell: cmd "
> "-to- MSI-X ISR for cmd cmpl\n");
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg4_total,
> phba->ktime_data_samples),
> phba->ktime_seg4_min,
> phba->ktime_seg4_max);
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "Segment 5: MSI-X ISR for cmd cmpl "
> "-to- NVME layer passed cmd done\n");
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg5_total,
> phba->ktime_data_samples),
> @@ -1117,10 +1117,10 @@ lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size)
> phba->ktime_seg5_max);
>
> if (phba->ktime_status_samples == 0) {
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "Total: cmd received by MSI-X ISR "
> "-to- cmd completed on wire\n");
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "avg:%08lld min:%08lld "
> "max %08lld\n",
> div_u64(phba->ktime_seg10_total,
> @@ -1130,46 +1130,46 @@ lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size)
> return len;
> }
>
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "Segment 6: NVME layer passed cmd done "
> "-to- Driver rcv rsp status OP\n");
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg6_total,
> phba->ktime_status_samples),
> phba->ktime_seg6_min,
> phba->ktime_seg6_max);
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "Segment 7: Driver rcv rsp status OP "
> "-to- Firmware WQ doorbell: status\n");
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg7_total,
> phba->ktime_status_samples),
> phba->ktime_seg7_min,
> phba->ktime_seg7_max);
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "Segment 8: Firmware WQ doorbell: status"
> " -to- MSI-X ISR for status cmpl\n");
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg8_total,
> phba->ktime_status_samples),
> phba->ktime_seg8_min,
> phba->ktime_seg8_max);
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "Segment 9: MSI-X ISR for status cmpl "
> "-to- NVME layer passed status done\n");
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg9_total,
> phba->ktime_status_samples),
> phba->ktime_seg9_min,
> phba->ktime_seg9_max);
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "Total: cmd received by MSI-X ISR -to- "
> "cmd completed on wire\n");
> - len += snprintf(buf + len, PAGE_SIZE-len,
> + len += scnprintf(buf + len, PAGE_SIZE-len,
> "avg:%08lld min:%08lld max %08lld\n",
> div_u64(phba->ktime_seg10_total,
> phba->ktime_status_samples),
> @@ -1204,7 +1204,7 @@ lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size)
> (phba->nvmeio_trc_size - 1);
> skip = phba->nvmeio_trc_output_idx;
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "%s IO Trace %s: next_idx %d skip %d size %d\n",
> (phba->nvmet_support ? "NVME" : "NVMET"),
> (state ? "Enabled" : "Disabled"),
> @@ -1226,18 +1226,18 @@ lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size)
> if (!dtp->fmt)
> continue;
>
> - len += snprintf(buf + len, size - len, dtp->fmt,
> + len += scnprintf(buf + len, size - len, dtp->fmt,
> dtp->data1, dtp->data2, dtp->data3);
>
> if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) {
> phba->nvmeio_trc_output_idx = 0;
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "Trace Complete\n");
> goto out;
> }
>
> if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) {
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "Trace Continue (%d of %d)\n",
> phba->nvmeio_trc_output_idx,
> phba->nvmeio_trc_size);
> @@ -1255,18 +1255,18 @@ lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size)
> if (!dtp->fmt)
> continue;
>
> - len += snprintf(buf + len, size - len, dtp->fmt,
> + len += scnprintf(buf + len, size - len, dtp->fmt,
> dtp->data1, dtp->data2, dtp->data3);
>
> if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) {
> phba->nvmeio_trc_output_idx = 0;
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "Trace Complete\n");
> goto out;
> }
>
> if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) {
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "Trace Continue (%d of %d)\n",
> phba->nvmeio_trc_output_idx,
> phba->nvmeio_trc_size);
> @@ -1274,7 +1274,7 @@ lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size)
> }
> }
>
> - len += snprintf(buf + len, size - len,
> + len += scnprintf(buf + len, size - len,
> "Trace Done\n");
> out:
> return len;
> @@ -1306,39 +1306,39 @@ lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size)
>
> if (phba->nvmet_support == 0) {
> /* NVME Initiator */
> - len += snprintf(buf + len, PAGE_SIZE - len,
> + len += scnprintf(buf + len, PAGE_SIZE - len,
> "CPUcheck %s\n",
> (phba->cpucheck_on & LPFC_CHECK_NVME_IO ?
> "Enabled" : "Disabled"));
> for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
> if (i >= LPFC_CHECK_CPU_CNT)
> break;
> - len += snprintf(buf + len, PAGE_SIZE - len,
> + len += scnprintf(buf + len, PAGE_SIZE - len,
> "%02d: xmit x%08x cmpl x%08x\n",
> i, phba->cpucheck_xmt_io[i],
> phba->cpucheck_cmpl_io[i]);
> tot_xmt += phba->cpucheck_xmt_io[i];
> tot_cmpl += phba->cpucheck_cmpl_io[i];
> }
> - len += snprintf(buf + len, PAGE_SIZE - len,
> + len += scnprintf(buf + len, PAGE_SIZE - len,
> "tot:xmit x%08x cmpl x%08x\n",
> tot_xmt, tot_cmpl);
> return len;
> }
>
> /* NVME Target */
> - len += snprintf(buf + len, PAGE_SIZE - len,
> + len += scnprintf(buf + len, PAGE_SIZE - len,
> "CPUcheck %s ",
> (phba->cpucheck_on & LPFC_CHECK_NVMET_IO ?
> "IO Enabled - " : "IO Disabled - "));
> - len += snprintf(buf + len, PAGE_SIZE - len,
> + len += scnprintf(buf + len, PAGE_SIZE - len,
> "%s\n",
> (phba->cpucheck_on & LPFC_CHECK_NVMET_RCV ?
> "Rcv Enabled\n" : "Rcv Disabled\n"));
> for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
> if (i >= LPFC_CHECK_CPU_CNT)
> break;
> - len += snprintf(buf + len, PAGE_SIZE - len,
> + len += scnprintf(buf + len, PAGE_SIZE - len,
> "%02d: xmit x%08x ccmpl x%08x "
> "cmpl x%08x rcv x%08x\n",
> i, phba->cpucheck_xmt_io[i],
> @@ -1350,7 +1350,7 @@ lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size)
> tot_cmpl += phba->cpucheck_cmpl_io[i];
> tot_ccmpl += phba->cpucheck_ccmpl_io[i];
> }
> - len += snprintf(buf + len, PAGE_SIZE - len,
> + len += scnprintf(buf + len, PAGE_SIZE - len,
> "tot:xmit x%08x ccmpl x%08x cmpl x%08x rcv x%08x\n",
> tot_xmt, tot_ccmpl, tot_cmpl, tot_rcv);
> return len;
> @@ -1795,28 +1795,28 @@ lpfc_debugfs_dif_err_read(struct file *file, char __user *buf,
> int cnt = 0;
>
> if (dent == phba->debug_writeGuard)
> - cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt);
> + cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt);
> else if (dent == phba->debug_writeApp)
> - cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt);
> + cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt);
> else if (dent == phba->debug_writeRef)
> - cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt);
> + cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt);
> else if (dent == phba->debug_readGuard)
> - cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt);
> + cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt);
> else if (dent == phba->debug_readApp)
> - cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt);
> + cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt);
> else if (dent == phba->debug_readRef)
> - cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt);
> + cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt);
> else if (dent == phba->debug_InjErrNPortID)
> - cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid);
> + cnt = scnprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid);
> else if (dent == phba->debug_InjErrWWPN) {
> memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name));
> tmp = cpu_to_be64(tmp);
> - cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp);
> + cnt = scnprintf(cbuf, 32, "0x%016llx\n", tmp);
> } else if (dent == phba->debug_InjErrLBA) {
> if (phba->lpfc_injerr_lba == (sector_t)(-1))
> - cnt = snprintf(cbuf, 32, "off\n");
> + cnt = scnprintf(cbuf, 32, "off\n");
> else
> - cnt = snprintf(cbuf, 32, "0x%llx\n",
> + cnt = scnprintf(cbuf, 32, "0x%llx\n",
> (uint64_t) phba->lpfc_injerr_lba);
> } else
> lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
> @@ -2622,17 +2622,17 @@ lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes,
> switch (count) {
> case SIZE_U8: /* byte (8 bits) */
> pci_read_config_byte(pdev, where, &u8val);
> - len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> "%03x: %02x\n", where, u8val);
> break;
> case SIZE_U16: /* word (16 bits) */
> pci_read_config_word(pdev, where, &u16val);
> - len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> "%03x: %04x\n", where, u16val);
> break;
> case SIZE_U32: /* double word (32 bits) */
> pci_read_config_dword(pdev, where, &u32val);
> - len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> "%03x: %08x\n", where, u32val);
> break;
> case LPFC_PCI_CFG_BROWSE: /* browse all */
> @@ -2652,25 +2652,25 @@ lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes,
> offset = offset_label;
>
> /* Read PCI config space */
> - len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> "%03x: ", offset_label);
> while (index > 0) {
> pci_read_config_dword(pdev, offset, &u32val);
> - len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> "%08x ", u32val);
> offset += sizeof(uint32_t);
> if (offset >= LPFC_PCI_CFG_SIZE) {
> - len += snprintf(pbuffer+len,
> + len += scnprintf(pbuffer+len,
> LPFC_PCI_CFG_SIZE-len, "\n");
> break;
> }
> index -= sizeof(uint32_t);
> if (!index)
> - len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> "\n");
> else if (!(index % (8 * sizeof(uint32_t)))) {
> offset_label += (8 * sizeof(uint32_t));
> - len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
> "\n%03x: ", offset_label);
> }
> }
> @@ -2941,7 +2941,7 @@ lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes,
> if (acc_range == SINGLE_WORD) {
> offset_run = offset;
> u32val = readl(mem_mapped_bar + offset_run);
> - len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
> "%05x: %08x\n", offset_run, u32val);
> } else
> goto baracc_browse;
> @@ -2955,35 +2955,35 @@ lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes,
> offset_run = offset_label;
>
> /* Read PCI bar memory mapped space */
> - len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
> "%05x: ", offset_label);
> index = LPFC_PCI_BAR_RD_SIZE;
> while (index > 0) {
> u32val = readl(mem_mapped_bar + offset_run);
> - len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
> "%08x ", u32val);
> offset_run += sizeof(uint32_t);
> if (acc_range == LPFC_PCI_BAR_BROWSE) {
> if (offset_run >= bar_size) {
> - len += snprintf(pbuffer+len,
> + len += scnprintf(pbuffer+len,
> LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
> break;
> }
> } else {
> if (offset_run >= offset +
> (acc_range * sizeof(uint32_t))) {
> - len += snprintf(pbuffer+len,
> + len += scnprintf(pbuffer+len,
> LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
> break;
> }
> }
> index -= sizeof(uint32_t);
> if (!index)
> - len += snprintf(pbuffer+len,
> + len += scnprintf(pbuffer+len,
> LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
> else if (!(index % (8 * sizeof(uint32_t)))) {
> offset_label += (8 * sizeof(uint32_t));
> - len += snprintf(pbuffer+len,
> + len += scnprintf(pbuffer+len,
> LPFC_PCI_BAR_RD_BUF_SIZE-len,
> "\n%05x: ", offset_label);
> }
> @@ -3156,19 +3156,19 @@ __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype,
> if (!qp)
> return len;
>
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> "\t\t%s WQ info: ", wqtype);
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n",
> qp->assoc_qid, qp->q_cnt_1,
> (unsigned long long)qp->q_cnt_4);
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
> "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]",
> qp->queue_id, qp->entry_count,
> qp->entry_size, qp->host_index,
> qp->hba_index, qp->entry_repost);
> - len += snprintf(pbuffer + len,
> + len += scnprintf(pbuffer + len,
> LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
> return len;
> }
> @@ -3206,21 +3206,21 @@ __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype,
> if (!qp)
> return len;
>
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> "\t%s CQ info: ", cqtype);
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x "
> "xabt:x%x wq:x%llx]\n",
> qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2,
> qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
> "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]",
> qp->queue_id, qp->entry_count,
> qp->entry_size, qp->host_index,
> qp->hba_index, qp->entry_repost);
>
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
>
> return len;
> }
> @@ -3232,19 +3232,19 @@ __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp,
> if (!qp || !datqp)
> return len;
>
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> "\t\t%s RQ info: ", rqtype);
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x "
> "posted:x%x rcv:x%llx]\n",
> qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2,
> qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
> "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]\n",
> qp->queue_id, qp->entry_count, qp->entry_size,
> qp->host_index, qp->hba_index, qp->entry_repost);
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
> "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]\n",
> datqp->queue_id, datqp->entry_count,
> @@ -3329,17 +3329,17 @@ __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype,
> if (!qp)
> return len;
>
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> "\n%s EQ info: EQ-STAT[max:x%x noE:x%x "
> "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n",
> eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3,
> (unsigned long long)qp->q_cnt_4, qp->q_mode);
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
> "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]",
> qp->queue_id, qp->entry_count, qp->entry_size,
> qp->host_index, qp->hba_index, qp->entry_repost);
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
>
> return len;
> }
> @@ -3397,7 +3397,7 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
> if (phba->cfg_fof == 0)
> phba->lpfc_idiag_last_eq = 0;
>
> - len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
> "EQ %d out of %d HBA EQs\n",
> x, phba->io_channel_irqs);
>
> @@ -3510,7 +3510,7 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
> return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
>
> too_big:
> - len += snprintf(pbuffer + len,
> + len += scnprintf(pbuffer + len,
> LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n");
> out:
> spin_unlock_irq(&phba->hbalock);
> @@ -3566,22 +3566,22 @@ lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque,
> return 0;
>
> esize = pque->entry_size;
> - len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
> "QE-INDEX[%04d]:\n", index);
>
> offset = 0;
> pentry = pque->qe[index].address;
> while (esize > 0) {
> - len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
> "%08x ", *pentry);
> pentry++;
> offset += sizeof(uint32_t);
> esize -= sizeof(uint32_t);
> if (esize > 0 && !(offset % (4 * sizeof(uint32_t))))
> - len += snprintf(pbuffer+len,
> + len += scnprintf(pbuffer+len,
> LPFC_QUE_ACC_BUF_SIZE-len, "\n");
> }
> - len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
> + len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
>
> return len;
> }
> @@ -3987,27 +3987,27 @@ lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
>
> switch (drbregid) {
> case LPFC_DRB_EQ:
> - len += snprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len,
> "EQ-DRB-REG: 0x%08x\n",
> readl(phba->sli4_hba.EQDBregaddr));
> break;
> case LPFC_DRB_CQ:
> - len += snprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len,
> + len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len,
> "CQ-DRB-REG: 0x%08x\n",
> readl(phba->sli4_hba.CQDBregaddr));
> break;
> case LPFC_DRB_MQ:
> - len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
> "MQ-DRB-REG: 0x%08x\n",
> readl(phba->sli4_hba.MQDBregaddr));
> break;
> case LPFC_DRB_WQ:
> - len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
> "WQ-DRB-REG: 0x%08x\n",
> readl(phba->sli4_hba.WQDBregaddr));
> break;
> case LPFC_DRB_RQ:
> - len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
> "RQ-DRB-REG: 0x%08x\n",
> readl(phba->sli4_hba.RQDBregaddr));
> break;
> @@ -4197,37 +4197,37 @@ lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
>
> switch (ctlregid) {
> case LPFC_CTL_PORT_SEM:
> - len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
> "Port SemReg: 0x%08x\n",
> readl(phba->sli4_hba.conf_regs_memmap_p +
> LPFC_CTL_PORT_SEM_OFFSET));
> break;
> case LPFC_CTL_PORT_STA:
> - len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
> "Port StaReg: 0x%08x\n",
> readl(phba->sli4_hba.conf_regs_memmap_p +
> LPFC_CTL_PORT_STA_OFFSET));
> break;
> case LPFC_CTL_PORT_CTL:
> - len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
> "Port CtlReg: 0x%08x\n",
> readl(phba->sli4_hba.conf_regs_memmap_p +
> LPFC_CTL_PORT_CTL_OFFSET));
> break;
> case LPFC_CTL_PORT_ER1:
> - len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
> "Port Er1Reg: 0x%08x\n",
> readl(phba->sli4_hba.conf_regs_memmap_p +
> LPFC_CTL_PORT_ER1_OFFSET));
> break;
> case LPFC_CTL_PORT_ER2:
> - len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
> "Port Er2Reg: 0x%08x\n",
> readl(phba->sli4_hba.conf_regs_memmap_p +
> LPFC_CTL_PORT_ER2_OFFSET));
> break;
> case LPFC_CTL_PDEV_CTL:
> - len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
> "PDev CtlReg: 0x%08x\n",
> readl(phba->sli4_hba.conf_regs_memmap_p +
> LPFC_CTL_PDEV_CTL_OFFSET));
> @@ -4420,13 +4420,13 @@ lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer)
> mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
> mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
>
> - len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
> "mbx_dump_map: 0x%08x\n", mbx_dump_map);
> - len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
> "mbx_dump_cnt: %04d\n", mbx_dump_cnt);
> - len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
> "mbx_word_cnt: %04d\n", mbx_word_cnt);
> - len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
> "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd);
>
> return len;
> @@ -4575,35 +4575,35 @@ lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len)
> {
> uint16_t ext_cnt, ext_size;
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\nAvailable Extents Information:\n");
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\tPort Available VPI extents: ");
> lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI,
> &ext_cnt, &ext_size);
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "Count %3d, Size %3d\n", ext_cnt, ext_size);
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\tPort Available VFI extents: ");
> lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI,
> &ext_cnt, &ext_size);
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "Count %3d, Size %3d\n", ext_cnt, ext_size);
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\tPort Available RPI extents: ");
> lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI,
> &ext_cnt, &ext_size);
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "Count %3d, Size %3d\n", ext_cnt, ext_size);
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\tPort Available XRI extents: ");
> lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI,
> &ext_cnt, &ext_size);
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "Count %3d, Size %3d\n", ext_cnt, ext_size);
>
> return len;
> @@ -4627,55 +4627,55 @@ lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len)
> uint16_t ext_cnt, ext_size;
> int rc;
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\nAllocated Extents Information:\n");
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\tHost Allocated VPI extents: ");
> rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI,
> &ext_cnt, &ext_size);
> if (!rc)
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "Port %d Extent %3d, Size %3d\n",
> phba->brd_no, ext_cnt, ext_size);
> else
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "N/A\n");
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\tHost Allocated VFI extents: ");
> rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI,
> &ext_cnt, &ext_size);
> if (!rc)
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "Port %d Extent %3d, Size %3d\n",
> phba->brd_no, ext_cnt, ext_size);
> else
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "N/A\n");
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\tHost Allocated RPI extents: ");
> rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI,
> &ext_cnt, &ext_size);
> if (!rc)
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "Port %d Extent %3d, Size %3d\n",
> phba->brd_no, ext_cnt, ext_size);
> else
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "N/A\n");
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\tHost Allocated XRI extents: ");
> rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI,
> &ext_cnt, &ext_size);
> if (!rc)
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "Port %d Extent %3d, Size %3d\n",
> phba->brd_no, ext_cnt, ext_size);
> else
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "N/A\n");
>
> return len;
> @@ -4699,49 +4699,49 @@ lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len)
> struct lpfc_rsrc_blks *rsrc_blks;
> int index;
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\nDriver Extents Information:\n");
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\tVPI extents:\n");
> index = 0;
> list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) {
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\t\tBlock %3d: Start %4d, Count %4d\n",
> index, rsrc_blks->rsrc_start,
> rsrc_blks->rsrc_size);
> index++;
> }
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\tVFI extents:\n");
> index = 0;
> list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list,
> list) {
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\t\tBlock %3d: Start %4d, Count %4d\n",
> index, rsrc_blks->rsrc_start,
> rsrc_blks->rsrc_size);
> index++;
> }
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\tRPI extents:\n");
> index = 0;
> list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list,
> list) {
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\t\tBlock %3d: Start %4d, Count %4d\n",
> index, rsrc_blks->rsrc_start,
> rsrc_blks->rsrc_size);
> index++;
> }
>
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\tXRI extents:\n");
> index = 0;
> list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list,
> list) {
> - len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> + len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
> "\t\tBlock %3d: Start %4d, Count %4d\n",
> index, rsrc_blks->rsrc_start,
> rsrc_blks->rsrc_size);
> @@ -5135,11 +5135,11 @@ lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp,
> if (i != 0)
> pr_err("%s\n", line_buf);
> len = 0;
> - len += snprintf(line_buf+len,
> + len += scnprintf(line_buf+len,
> LPFC_MBX_ACC_LBUF_SZ-len,
> "%03d: ", i);
> }
> - len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
> + len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
> "%08x ", (uint32_t)*pword);
> pword++;
> }
> @@ -5202,11 +5202,11 @@ lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox)
> pr_err("%s\n", line_buf);
> len = 0;
> memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
> - len += snprintf(line_buf+len,
> + len += scnprintf(line_buf+len,
> LPFC_MBX_ACC_LBUF_SZ-len,
> "%03d: ", i);
> }
> - len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
> + len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
> "%08x ",
> ((uint32_t)*pword) & 0xffffffff);
> pword++;
> @@ -5225,18 +5225,18 @@ lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox)
> pr_err("%s\n", line_buf);
> len = 0;
> memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
> - len += snprintf(line_buf+len,
> + len += scnprintf(line_buf+len,
> LPFC_MBX_ACC_LBUF_SZ-len,
> "%03d: ", i);
> }
> for (j = 0; j < 4; j++) {
> - len += snprintf(line_buf+len,
> + len += scnprintf(line_buf+len,
> LPFC_MBX_ACC_LBUF_SZ-len,
> "%02x",
> ((uint8_t)*pbyte) & 0xff);
> pbyte++;
> }
> - len += snprintf(line_buf+len,
> + len += scnprintf(line_buf+len,
> LPFC_MBX_ACC_LBUF_SZ-len, " ");
> }
> if ((i - 1) % 8)
> --
> 2.19.2
>
--
Kees Cook