Add a comment explaining how the PSN works and why there is no need for
a null terminator. Also mark CID 1394825 as intentional. Reported by: Coverity CID: 1394825 MFC after: 1 week Sponsored by: iXsystems Inc.
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=337887
@ -1714,6 +1714,11 @@ pci_nvme_parse_opts(struct pci_nvme_softc *sc, char *opts)
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} else if (!strcmp("sectsz", xopts)) {
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sectsz = atoi(config);
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} else if (!strcmp("ser", xopts)) {
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/*
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* This field indicates the Product Serial Number in
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* 8-bit ASCII, unused bytes should be NULL characters.
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* Ref: NVM Express Management Interface 1.0a.
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*/
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memset(sc->ctrldata.sn, 0, sizeof(sc->ctrldata.sn));
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strncpy(sc->ctrldata.sn, config,
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sizeof(sc->ctrldata.sn));
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