On Sat, Dec 24, 2016 at 05:42:34PM +0000, Alexander Motin wrote: > New Revision: 310524 > URL: https://svnweb.freebsd.org/changeset/base/310524 > > Log: > Improve length handling when writing sense data. > > - Allow maximal sense size limitation via Control Extension mode page. > - When sense size limited, include descriptors atomically: whole or none. > - Set new SDAT_OVFL bit if some descriptors don't fit the limit. > - Report real written sense length instead of static maximal 252 bytes. > > Modified: head/sys/cam/scsi/scsi_all.c > ... > break; > - case SSD_ELEM_DESC: > - default: > - > - /* > - * If the user passes in descriptor sense, > - * we can't handle that in fixed format. > - * So just skip it, and any unknown argument > - * types. > - */ > + } > + if (len > sizeof(sense->cmd_spec_info)) { > + data += len - sizeof(sense->cmd_spec_info); > + len -= len - sizeof(sense->cmd_spec_info);
PVS Studio complains here: error: V765 A compound assignment expression 'x -= x - ...' is suspicious. Consider inspecting it for a possible error. This "len -= len - sizeof(...)" indeed looks weird, can you take a look? ./danfe _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
