/* * BPF asm code lexer * * This program is free software; you can distribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2 of the License, * or (at your option) any later version. * * Syntax kept close to: * * Steven McCanne and Van Jacobson. 1993. The BSD packet filter: a new * architecture for user-level packet capture. In Proceedings of the * USENIX Winter 1993 Conference Proceedings on USENIX Winter 1993 * Conference Proceedings (USENIX'93). USENIX Association, Berkeley, * CA, USA, 2-2. * * Copyright 2013 Daniel Borkmann * Licensed under the GNU General Public License, version 2.0 (GPLv2) */ %{ #include #include #include #include #include #include "bpf_exp.yacc.h" extern void yyerror(const char *str); %} %option align %option ecs %option nounput %option noreject %option noinput %option noyywrap %option 8bit %option caseless %option yylineno %% "ldb" { return OP_LDB; } "ldh" { return OP_LDH; } "ld" { return OP_LD; } "ldi" { return OP_LDI; } "ldx" { return OP_LDX; } "ldxi" { return OP_LDXI; } "ldxb" { return OP_LDXB; } "st" { return OP_ST; } "stx" { return OP_STX; } "jmp" { return OP_JMP; } "ja" { return OP_JMP; } "jeq" { return OP_JEQ; } "jneq" { return OP_JNEQ; } "jne" { return OP_JNEQ; } "jlt" { return OP_JLT; } "jle" { return OP_JLE; } "jgt" { return OP_JGT; } "jge" { return OP_JGE; } "jset" { return OP_JSET; } "add" { return OP_ADD; } "sub" { return OP_SUB; } "mul" { return OP_MUL; } "div" { return OP_DIV; } "mod" { return OP_MOD; } "neg" { return OP_NEG; } "and" { return OP_AND; } "xor" { return OP_XOR; } "or" { return OP_OR; } "lsh" { return OP_LSH; } "rsh" { return OP_RSH; } "ret" { return OP_RET; } "tax" { return OP_TAX; } "txa" { return OP_TXA; } "#"?("len") { return K_PKT_LEN; } "#"?("proto") { yylval.number = SKF_AD_PROTOCOL; return extension; } "#"?("type") { yylval.number = SKF_AD_PKTTYPE; return extension; } "#"?("poff") { yylval.number = SKF_AD_PAY_OFFSET; return extension; } "#"?("ifidx") { yylval.number = SKF_AD_IFINDEX; return extension; } "#"?("nla") { yylval.number = SKF_AD_NLATTR; return extension; } "#"?("nlan") { yylval.number = SKF_AD_NLATTR_NEST; return extension; } "#"?("mark") { yylval.number = SKF_AD_MARK; return extension; } "#"?("queue") { yylval.number = SKF_AD_QUEUE; return extension; } "#"?("hatype") { yylval.number = SKF_AD_HATYPE; return extension; } "#"?("rxhash") { yylval.number = SKF_AD_RXHASH; return extension; } "#"?("cpu") { yylval.number = SKF_AD_CPU; return extension; } "#"?("vlan_tci") { yylval.number = SKF_AD_VLAN_TAG; return extension; } "#"?("vlan_pr") { yylval.number = SKF_AD_VLAN_TAG_PRESENT; return extension; } "#"?("vlan_avail") { yylval.number = SKF_AD_VLAN_TAG_PRESENT; return extension; } "#"?("vlan_tpid") { yylval.number = SKF_AD_VLAN_TPID; return extension; } "#"?("rand") { yylval.number = SKF_AD_RANDOM; return extension; } ":" { return ':'; } "," { return ','; } "#" { return '#'; } "%" { return '%'; } "[" { return '['; } "]" { return ']'; } "(" { return '('; } ")" { return ')'; } "x" { return 'x'; } "a" { return 'a'; } "+" { return '+'; } "M" { return 'M'; } "*" { return '*'; } "&" { return '&'; } ([0][x][a-fA-F0-9]+) { yylval.number = strtoul(yytext, NULL, 16); return number; } ([0][b][0-1]+) { yylval.number = strtol(yytext + 2, NULL, 2); return number; } (([0])|([-+]?[1-9][0-9]*)) { yylval.number = strtol(yytext, NULL, 10); return number; } ([0][0-9]+) { yylval.number = strtol(yytext + 1, NULL, 8); return number; } [a-zA-Z_][a-zA-Z0-9_]+ { yylval.label = strdup(yytext); return label; } "/*"([^\*]|\*[^/])*"*/" { /* NOP */ } ";"[^\n]* { /* NOP */ } ^#.* { /* NOP */ } [ \t]+ { /* NOP */ } [ \n]+ { /* NOP */ } . { printf("unknown character \'%s\'", yytext); yyerror("lex unknown character"); } %% ce:mode:
authorChristoph Hellwig <hch@lst.de>2017-01-30 13:15:41 +0100
committerBjorn Helgaas <bhelgaas@google.com>2017-02-02 10:35:46 -0600
commitdfef358bd1beb4e7b5c94eca944be9cd23dfc752 (patch)
treeb9a2afb38a4c2ac8ad31f49ec0d71fe9e5b1994c /sound/core/seq/seq_midi.c
parent030305d69fc6963c16003f50d7e8d74b02d0a143 (diff)
PCI/MSI: Don't apply affinity if there aren't enough vectors left
Bart reported a problem wіth an out of bounds access in the low-level IRQ affinity code, which we root caused to the qla2xxx driver assigning all its MSI-X vectors to the pre and post vectors, and not having any left for the actually spread IRQs. Fix this issue by not asking for affinity assignment when there are no vectors to assign left. Fixes: 402723ad5c62 ("PCI/MSI: Provide pci_alloc_irq_vectors_affinity()") Link: https://lkml.kernel.org/r/1485359225.3093.3.camel@sandisk.com Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Tested-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'sound/core/seq/seq_midi.c')