Hi Sergey, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y head: 9fcb9d72e8a3a813caae6e2fac43a73603d75abd commit: 8e99c881e497e7f7528f693c563e204ae888a846 [3879/4798] tools/lib/subcmd/pager.c: do not alias select() params config: x86_64-acpi-redef (attached as .config) compiler: gcc-8 (Debian 8.1.0-3) 8.1.0 reproduce: git checkout 8e99c881e497e7f7528f693c563e204ae888a846 # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): In file included from ipc/mqueue.c:29: include/linux/syscalls.h:211:18: warning: 'sys_mq_open' alias between functions of incompatible types 'long int(const char *, int, umode_t, struct mq_attr *)' {aka 'long int(const char *, int, short unsigned int, struct mq_attr *)'} and 'long int(long int, long int, long int, long int)' [-Wattribute-alias] asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ^~~ include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:199:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ ipc/mqueue.c:847:1: note: in expansion of macro 'SYSCALL_DEFINE4' SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, umode_t, mode, ^~~~~~~~~~~~~~~ include/linux/syscalls.h:215:18: note: aliased declaration here asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ ^~~ include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:199:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ ipc/mqueue.c:847:1: note: in expansion of macro 'SYSCALL_DEFINE4' SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, umode_t, mode, ^~~~~~~~~~~~~~~ In file included from include/linux/ethtool.h:17, from include/linux/netdevice.h:41, from include/net/sock.h:51, from ipc/mqueue.c:42: include/linux/compat.h:51:18: warning: 'compat_sys_mq_getsetattr' alias between functions of incompatible types 'long int(mqd_t, const struct compat_mq_attr *, struct compat_mq_attr *)' {aka 'long int(int, const struct compat_mq_attr *, struct compat_mq_attr *)'} and 'long int(long int, long int, long int)' [-Wattribute-alias] asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\ ^~~~~~~~~~ include/linux/compat.h:42:2: note: in expansion of macro 'COMPAT_SYSCALL_DEFINEx' COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~ >> ipc/mqueue.c:1531:1: note: in expansion of macro 'COMPAT_SYSCALL_DEFINE3' COMPAT_SYSCALL_DEFINE3(mq_getsetattr, mqd_t, mqdes, ^~~~~~~~~~~~~~~~~~~~~~ include/linux/compat.h:55:18: note: aliased declaration here asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\ ^~~~~~~~~~ include/linux/compat.h:42:2: note: in expansion of macro 'COMPAT_SYSCALL_DEFINEx' COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~ >> ipc/mqueue.c:1531:1: note: in expansion of macro 'COMPAT_SYSCALL_DEFINE3' COMPAT_SYSCALL_DEFINE3(mq_getsetattr, mqd_t, mqdes, ^~~~~~~~~~~~~~~~~~~~~~ include/linux/compat.h:51:18: warning: 'compat_sys_mq_notify' alias between functions of incompatible types 'long int(mqd_t, const struct compat_sigevent *)' {aka 'long int(int, const struct compat_sigevent *)'} and 'long int(long int, long int)' [-Wattribute-alias] asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\ ^~~~~~~~~~ include/linux/compat.h:40:2: note: in expansion of macro 'COMPAT_SYSCALL_DEFINEx' COMPAT_SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~ >> ipc/mqueue.c:1517:1: note: in expansion of macro 'COMPAT_SYSCALL_DEFINE2' COMPAT_SYSCALL_DEFINE2(mq_notify, mqd_t, mqdes, ^~~~~~~~~~~~~~~~~~~~~~ include/linux/compat.h:55:18: note: aliased declaration here asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\ ^~~~~~~~~~ include/linux/compat.h:40:2: note: in expansion of macro 'COMPAT_SYSCALL_DEFINEx' COMPAT_SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~ >> ipc/mqueue.c:1517:1: note: in expansion of macro 'COMPAT_SYSCALL_DEFINE2' COMPAT_SYSCALL_DEFINE2(mq_notify, mqd_t, mqdes, ^~~~~~~~~~~~~~~~~~~~~~ include/linux/compat.h:51:18: warning: 'compat_sys_mq_timedreceive' alias between functions of incompatible types 'long int(mqd_t, char *, compat_size_t, unsigned int *, const struct compat_timespec *)' {aka 'long int(int, char *, unsigned int, unsigned int *, const struct compat_timespec *)'} and 'long int(long int, long int, long int, long int, long int)' [-Wattribute-alias] asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\ ^~~~~~~~~~ include/linux/compat.h:46:2: note: in expansion of macro 'COMPAT_SYSCALL_DEFINEx' COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~ >> ipc/mqueue.c:1502:1: note: in expansion of macro 'COMPAT_SYSCALL_DEFINE5' COMPAT_SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, ^~~~~~~~~~~~~~~~~~~~~~ include/linux/compat.h:55:18: note: aliased declaration here asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\ ^~~~~~~~~~ include/linux/compat.h:46:2: note: in expansion of macro 'COMPAT_SYSCALL_DEFINEx' COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~ >> ipc/mqueue.c:1502:1: note: in expansion of macro 'COMPAT_SYSCALL_DEFINE5' COMPAT_SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, ^~~~~~~~~~~~~~~~~~~~~~ include/linux/compat.h:51:18: warning: 'compat_sys_mq_timedsend' alias between functions of incompatible types 'long int(mqd_t, const char *, compat_size_t, unsigned int, const struct compat_timespec *)' {aka 'long int(int, const char *, unsigned int, unsigned int, const struct compat_timespec *)'} and 'long int(long int, long int, long int, long int, long int)' [-Wattribute-alias] asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\ ^~~~~~~~~~ include/linux/compat.h:46:2: note: in expansion of macro 'COMPAT_SYSCALL_DEFINEx' COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~ ipc/mqueue.c:1487:1: note: in expansion of macro 'COMPAT_SYSCALL_DEFINE5' COMPAT_SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, ^~~~~~~~~~~~~~~~~~~~~~ include/linux/compat.h:55:18: note: aliased declaration here asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\ ^~~~~~~~~~ include/linux/compat.h:46:2: note: in expansion of macro 'COMPAT_SYSCALL_DEFINEx' COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~ ipc/mqueue.c:1487:1: note: in expansion of macro 'COMPAT_SYSCALL_DEFINE5' COMPAT_SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, ^~~~~~~~~~~~~~~~~~~~~~ include/linux/compat.h:51:18: warning: 'compat_sys_mq_open' alias between functions of incompatible types 'long int(const char *, int, compat_mode_t, struct compat_mq_attr *)' {aka 'long int(const char *, int, short unsigned int, struct compat_mq_attr *)'} and 'long int(long int, long int, long int, long int)' [-Wattribute-alias] asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\ ^~~~~~~~~~ include/linux/compat.h:44:2: note: in expansion of macro 'COMPAT_SYSCALL_DEFINEx' COMPAT_SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~ >> ipc/mqueue.c:1464:1: note: in expansion of macro 'COMPAT_SYSCALL_DEFINE4' COMPAT_SYSCALL_DEFINE4(mq_open, const char __user *, u_name, ^~~~~~~~~~~~~~~~~~~~~~ include/linux/compat.h:55:18: note: aliased declaration here asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\ ^~~~~~~~~~ include/linux/compat.h:44:2: note: in expansion of macro 'COMPAT_SYSCALL_DEFINEx' COMPAT_SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~ >> ipc/mqueue.c:1464:1: note: in expansion of macro 'COMPAT_SYSCALL_DEFINE4' COMPAT_SYSCALL_DEFINE4(mq_open, const char __user *, u_name, ^~~~~~~~~~~~~~~~~~~~~~ In file included from ipc/mqueue.c:29: include/linux/syscalls.h:211:18: warning: 'sys_mq_getsetattr' alias between functions of incompatible types 'long int(mqd_t, const struct mq_attr *, struct mq_attr *)' {aka 'long int(int, const struct mq_attr *, struct mq_attr *)'} and 'long int(long int, long int, long int)' [-Wattribute-alias] asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ^~~ include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ ipc/mqueue.c:1398:1: note: in expansion of macro 'SYSCALL_DEFINE3' SYSCALL_DEFINE3(mq_getsetattr, mqd_t, mqdes, ^~~~~~~~~~~~~~~ include/linux/syscalls.h:215:18: note: aliased declaration here asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ ^~~ include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ ipc/mqueue.c:1398:1: note: in expansion of macro 'SYSCALL_DEFINE3' SYSCALL_DEFINE3(mq_getsetattr, mqd_t, mqdes, ^~~~~~~~~~~~~~~ include/linux/syscalls.h:211:18: warning: 'sys_mq_notify' alias between functions of incompatible types 'long int(mqd_t, const struct sigevent *)' {aka 'long int(int, const struct sigevent *)'} and 'long int(long int, long int)' [-Wattribute-alias] asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ^~~ include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ ipc/mqueue.c:1342:1: note: in expansion of macro 'SYSCALL_DEFINE2' SYSCALL_DEFINE2(mq_notify, mqd_t, mqdes, ^~~~~~~~~~~~~~~ include/linux/syscalls.h:215:18: note: aliased declaration here asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ ^~~ include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ ipc/mqueue.c:1342:1: note: in expansion of macro 'SYSCALL_DEFINE2' SYSCALL_DEFINE2(mq_notify, mqd_t, mqdes, ^~~~~~~~~~~~~~~ include/linux/syscalls.h:211:18: warning: 'sys_mq_timedreceive' alias between functions of incompatible types 'long int(mqd_t, char *, size_t, unsigned int *, const struct timespec *)' {aka 'long int(int, char *, long unsigned int, unsigned int *, const struct timespec *)'} and 'long int(long int, long int, long int, long int, long int)' [-Wattribute-alias] asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ^~~ include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ ipc/mqueue.c:1197:1: note: in expansion of macro 'SYSCALL_DEFINE5' SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, char __user *, u_msg_ptr, ^~~~~~~~~~~~~~~ include/linux/syscalls.h:215:18: note: aliased declaration here asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ ^~~ include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ ipc/mqueue.c:1197:1: note: in expansion of macro 'SYSCALL_DEFINE5' SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, char __user *, u_msg_ptr, ^~~~~~~~~~~~~~~ include/linux/syscalls.h:211:18: warning: 'sys_mq_timedsend' alias between functions of incompatible types 'long int(mqd_t, const char *, size_t, unsigned int, const struct timespec *)' {aka 'long int(int, const char *, long unsigned int, unsigned int, const struct timespec *)'} and 'long int(long int, long int, long int, long int, long int)' [-Wattribute-alias] asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ^~~ include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ ipc/mqueue.c:1183:1: note: in expansion of macro 'SYSCALL_DEFINE5' SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr, ^~~~~~~~~~~~~~~ include/linux/syscalls.h:215:18: note: aliased declaration here asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ ^~~ include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ ipc/mqueue.c:1183:1: note: in expansion of macro 'SYSCALL_DEFINE5' SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr, ^~~~~~~~~~~~~~~ include/linux/syscalls.h:211:18: warning: 'sys_mq_unlink' alias between functions of incompatible types 'long int(const char *)' and 'long int(long int)' [-Wattribute-alias] vim +/COMPAT_SYSCALL_DEFINE3 +1531 ipc/mqueue.c 0d060606 Al Viro 2017-06-27 1463 0d060606 Al Viro 2017-06-27 @1464 COMPAT_SYSCALL_DEFINE4(mq_open, const char __user *, u_name, 0d060606 Al Viro 2017-06-27 1465 int, oflag, compat_mode_t, mode, 0d060606 Al Viro 2017-06-27 1466 struct compat_mq_attr __user *, u_attr) 0d060606 Al Viro 2017-06-27 1467 { 0d060606 Al Viro 2017-06-27 1468 struct mq_attr attr, *p = NULL; 0d060606 Al Viro 2017-06-27 1469 if (u_attr && oflag & O_CREAT) { 0d060606 Al Viro 2017-06-27 1470 p = &attr; 0d060606 Al Viro 2017-06-27 1471 if (get_compat_mq_attr(&attr, u_attr)) 0d060606 Al Viro 2017-06-27 1472 return -EFAULT; 0d060606 Al Viro 2017-06-27 1473 } 0d060606 Al Viro 2017-06-27 1474 return do_mq_open(u_name, oflag, mode, p); 0d060606 Al Viro 2017-06-27 1475 } 0d060606 Al Viro 2017-06-27 1476 0d060606 Al Viro 2017-06-27 1477 static int compat_prepare_timeout(const struct compat_timespec __user *p, b9047726 Deepa Dinamani 2017-08-02 1478 struct timespec64 *ts) 0d060606 Al Viro 2017-06-27 1479 { b9047726 Deepa Dinamani 2017-08-02 1480 if (compat_get_timespec64(ts, p)) 0d060606 Al Viro 2017-06-27 1481 return -EFAULT; b9047726 Deepa Dinamani 2017-08-02 1482 if (!timespec64_valid(ts)) 0d060606 Al Viro 2017-06-27 1483 return -EINVAL; 0d060606 Al Viro 2017-06-27 1484 return 0; 0d060606 Al Viro 2017-06-27 1485 } 0d060606 Al Viro 2017-06-27 1486 0d060606 Al Viro 2017-06-27 @1487 COMPAT_SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, 0d060606 Al Viro 2017-06-27 1488 const char __user *, u_msg_ptr, 0d060606 Al Viro 2017-06-27 1489 compat_size_t, msg_len, unsigned int, msg_prio, 0d060606 Al Viro 2017-06-27 1490 const struct compat_timespec __user *, u_abs_timeout) 0d060606 Al Viro 2017-06-27 1491 { b9047726 Deepa Dinamani 2017-08-02 1492 struct timespec64 ts, *p = NULL; 0d060606 Al Viro 2017-06-27 1493 if (u_abs_timeout) { 0d060606 Al Viro 2017-06-27 1494 int res = compat_prepare_timeout(u_abs_timeout, &ts); 0d060606 Al Viro 2017-06-27 1495 if (res) 0d060606 Al Viro 2017-06-27 1496 return res; 0d060606 Al Viro 2017-06-27 1497 p = &ts; 0d060606 Al Viro 2017-06-27 1498 } 0d060606 Al Viro 2017-06-27 1499 return do_mq_timedsend(mqdes, u_msg_ptr, msg_len, msg_prio, p); 0d060606 Al Viro 2017-06-27 1500 } 0d060606 Al Viro 2017-06-27 1501 0d060606 Al Viro 2017-06-27 @1502 COMPAT_SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, 0d060606 Al Viro 2017-06-27 1503 char __user *, u_msg_ptr, 0d060606 Al Viro 2017-06-27 1504 compat_size_t, msg_len, unsigned int __user *, u_msg_prio, 0d060606 Al Viro 2017-06-27 1505 const struct compat_timespec __user *, u_abs_timeout) 0d060606 Al Viro 2017-06-27 1506 { b9047726 Deepa Dinamani 2017-08-02 1507 struct timespec64 ts, *p = NULL; 0d060606 Al Viro 2017-06-27 1508 if (u_abs_timeout) { 0d060606 Al Viro 2017-06-27 1509 int res = compat_prepare_timeout(u_abs_timeout, &ts); 0d060606 Al Viro 2017-06-27 1510 if (res) 0d060606 Al Viro 2017-06-27 1511 return res; 0d060606 Al Viro 2017-06-27 1512 p = &ts; 0d060606 Al Viro 2017-06-27 1513 } 0d060606 Al Viro 2017-06-27 1514 return do_mq_timedreceive(mqdes, u_msg_ptr, msg_len, u_msg_prio, p); 0d060606 Al Viro 2017-06-27 1515 } 0d060606 Al Viro 2017-06-27 1516 0d060606 Al Viro 2017-06-27 @1517 COMPAT_SYSCALL_DEFINE2(mq_notify, mqd_t, mqdes, 0d060606 Al Viro 2017-06-27 1518 const struct compat_sigevent __user *, u_notification) 0d060606 Al Viro 2017-06-27 1519 { 0d060606 Al Viro 2017-06-27 1520 struct sigevent n, *p = NULL; 0d060606 Al Viro 2017-06-27 1521 if (u_notification) { 0d060606 Al Viro 2017-06-27 1522 if (get_compat_sigevent(&n, u_notification)) 0d060606 Al Viro 2017-06-27 1523 return -EFAULT; 0d060606 Al Viro 2017-06-27 1524 if (n.sigev_notify == SIGEV_THREAD) 0d060606 Al Viro 2017-06-27 1525 n.sigev_value.sival_ptr = compat_ptr(n.sigev_value.sival_int); 0d060606 Al Viro 2017-06-27 1526 p = &n; 0d060606 Al Viro 2017-06-27 1527 } 0d060606 Al Viro 2017-06-27 1528 return do_mq_notify(mqdes, p); 0d060606 Al Viro 2017-06-27 1529 } 0d060606 Al Viro 2017-06-27 1530 0d060606 Al Viro 2017-06-27 @1531 COMPAT_SYSCALL_DEFINE3(mq_getsetattr, mqd_t, mqdes, 0d060606 Al Viro 2017-06-27 1532 const struct compat_mq_attr __user *, u_mqstat, 0d060606 Al Viro 2017-06-27 1533 struct compat_mq_attr __user *, u_omqstat) 0d060606 Al Viro 2017-06-27 1534 { 0d060606 Al Viro 2017-06-27 1535 int ret; 0d060606 Al Viro 2017-06-27 1536 struct mq_attr mqstat, omqstat; 0d060606 Al Viro 2017-06-27 1537 struct mq_attr *new = NULL, *old = NULL; 0d060606 Al Viro 2017-06-27 1538 0d060606 Al Viro 2017-06-27 1539 if (u_mqstat) { 0d060606 Al Viro 2017-06-27 1540 new = &mqstat; 0d060606 Al Viro 2017-06-27 1541 if (get_compat_mq_attr(new, u_mqstat)) 0d060606 Al Viro 2017-06-27 1542 return -EFAULT; 0d060606 Al Viro 2017-06-27 1543 } 0d060606 Al Viro 2017-06-27 1544 if (u_omqstat) 0d060606 Al Viro 2017-06-27 1545 old = &omqstat; 0d060606 Al Viro 2017-06-27 1546 0d060606 Al Viro 2017-06-27 1547 ret = do_mq_getsetattr(mqdes, new, old); 0d060606 Al Viro 2017-06-27 1548 if (ret || !old) 0d060606 Al Viro 2017-06-27 1549 return ret; 0d060606 Al Viro 2017-06-27 1550 0d060606 Al Viro 2017-06-27 1551 if (put_compat_mq_attr(old, u_omqstat)) 0d060606 Al Viro 2017-06-27 1552 return -EFAULT; 0d060606 Al Viro 2017-06-27 1553 return 0; ^1da177e Linus Torvalds 2005-04-16 1554 } 0d060606 Al Viro 2017-06-27 1555 #endif ^1da177e Linus Torvalds 2005-04-16 1556 :::::: The code at line 1531 was first introduced by commit :::::: 0d0606060baefdb13d3d80dba1b4c816b0676e16 mqueue: move compat syscalls to native ones :::::: TO: Al Viro <viro@xxxxxxxxxxxxxxxxxx> :::::: CC: Al Viro <viro@xxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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