kernel/compat: convert to COMPAT_SYSCALL_DEFINE

Convert all compat system call functions where all parameter types
have a size of four or less than four bytes, or are pointer types
to COMPAT_SYSCALL_DEFINE.
The implicit casts within COMPAT_SYSCALL_DEFINE will perform proper
zero and sign extension to 64 bit of all parameters if needed.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

diff --git a/kernel/compat.c b/kernel/compat.c
index 0a09e481b70b6e97519841f2eebf57da2e02d851..2622011a44c9cd5bc49209337f8526874533ce67 100644 (file)
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -110,8 +110,8 @@ static int compat_put_timex(struct compat_timex __user *utp, struct timex *txc)
        return 0;
 }
 
-asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
-               struct timezone __user *tz)
+COMPAT_SYSCALL_DEFINE2(gettimeofday, struct compat_timeval __user *, tv,
+                      struct timezone __user *, tz)
 {
        if (tv) {
                struct timeval ktv;
@@ -127,8 +127,8 @@ asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
        return 0;
 }
 
-asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
-               struct timezone __user *tz)
+COMPAT_SYSCALL_DEFINE2(settimeofday, struct compat_timeval __user *, tv,
+                      struct timezone __user *, tz)
 {
        struct timespec kts;
        struct timezone ktz;
@@ -236,8 +236,8 @@ static long compat_nanosleep_restart(struct restart_block *restart)
        return ret;
 }
 
-asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
-                                    struct compat_timespec __user *rmtp)
+COMPAT_SYSCALL_DEFINE2(nanosleep, struct compat_timespec __user *, rqtp,
+                      struct compat_timespec __user *, rmtp)
 {
        struct timespec tu, rmt;
        mm_segment_t oldfs;
@@ -328,7 +328,7 @@ static compat_clock_t clock_t_to_compat_clock_t(clock_t x)
        return compat_jiffies_to_clock_t(clock_t_to_jiffies(x));
 }
 
-asmlinkage long compat_sys_times(struct compat_tms __user *tbuf)
+COMPAT_SYSCALL_DEFINE1(times, struct compat_tms __user *, tbuf)
 {
        if (tbuf) {
                struct tms tms;
@@ -354,7 +354,7 @@ asmlinkage long compat_sys_times(struct compat_tms __user *tbuf)
  * types that can be passed to put_user()/get_user().
  */
 
-asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set)
+COMPAT_SYSCALL_DEFINE1(sigpending, compat_old_sigset_t __user *, set)
 {
        old_sigset_t s;
        long ret;
@@ -424,8 +424,8 @@ COMPAT_SYSCALL_DEFINE3(sigprocmask, int, how,
 
 #endif
 
-asmlinkage long compat_sys_setrlimit(unsigned int resource,
-               struct compat_rlimit __user *rlim)
+COMPAT_SYSCALL_DEFINE2(setrlimit, unsigned int, resource,
+                      struct compat_rlimit __user *, rlim)
 {
        struct rlimit r;
 
@@ -443,8 +443,8 @@ asmlinkage long compat_sys_setrlimit(unsigned int resource,
 
 #ifdef COMPAT_RLIM_OLD_INFINITY
 
-asmlinkage long compat_sys_old_getrlimit(unsigned int resource,
-               struct compat_rlimit __user *rlim)
+COMPAT_SYSCALL_DEFINE2(old_getrlimit, unsigned int, resource,
+                      struct compat_rlimit __user *, rlim)
 {
        struct rlimit r;
        int ret;
@@ -470,8 +470,8 @@ asmlinkage long compat_sys_old_getrlimit(unsigned int resource,
 
 #endif
 
-asmlinkage long compat_sys_getrlimit(unsigned int resource,
-               struct compat_rlimit __user *rlim)
+COMPAT_SYSCALL_DEFINE2(getrlimit, unsigned int, resource,
+                      struct compat_rlimit __user *, rlim)
 {
        struct rlimit r;
        int ret;
@@ -596,9 +596,9 @@ static int compat_get_user_cpu_mask(compat_ulong_t __user *user_mask_ptr,
        return compat_get_bitmap(k, user_mask_ptr, len * 8);
 }
 
-asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
-                                            unsigned int len,
-                                            compat_ulong_t __user *user_mask_ptr)
+COMPAT_SYSCALL_DEFINE3(sched_setaffinity, compat_pid_t, pid,
+                      unsigned int, len,
+                      compat_ulong_t __user *, user_mask_ptr)
 {
        cpumask_var_t new_mask;
        int retval;
@@ -616,8 +616,8 @@ out:
        return retval;
 }
 
-asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid, unsigned int len,
-                                            compat_ulong_t __user *user_mask_ptr)
+COMPAT_SYSCALL_DEFINE3(sched_getaffinity, compat_pid_t,  pid, unsigned int, len,
+                      compat_ulong_t __user *, user_mask_ptr)
 {
        int ret;
        cpumask_var_t mask;
@@ -662,9 +662,9 @@ int put_compat_itimerspec(struct compat_itimerspec __user *dst,
        return 0;
 }
 
-long compat_sys_timer_create(clockid_t which_clock,
-                       struct compat_sigevent __user *timer_event_spec,
-                       timer_t __user *created_timer_id)
+COMPAT_SYSCALL_DEFINE3(timer_create, clockid_t, which_clock,
+                      struct compat_sigevent __user *, timer_event_spec,
+                      timer_t __user *, created_timer_id)
 {
        struct sigevent __user *event = NULL;
 
@@ -680,9 +680,9 @@ long compat_sys_timer_create(clockid_t which_clock,
        return sys_timer_create(which_clock, event, created_timer_id);
 }
 
-long compat_sys_timer_settime(timer_t timer_id, int flags,
-                         struct compat_itimerspec __user *new,
-                         struct compat_itimerspec __user *old)
+COMPAT_SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
+                      struct compat_itimerspec __user *, new,
+                      struct compat_itimerspec __user *, old)
 {
        long err;
        mm_segment_t oldfs;
@@ -703,8 +703,8 @@ long compat_sys_timer_settime(timer_t timer_id, int flags,
        return err;
 }
 
-long compat_sys_timer_gettime(timer_t timer_id,
-               struct compat_itimerspec __user *setting)
+COMPAT_SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
+                      struct compat_itimerspec __user *, setting)
 {
        long err;
        mm_segment_t oldfs;
@@ -720,8 +720,8 @@ long compat_sys_timer_gettime(timer_t timer_id,
        return err;
 }
 
-long compat_sys_clock_settime(clockid_t which_clock,
-               struct compat_timespec __user *tp)
+COMPAT_SYSCALL_DEFINE2(clock_settime, clockid_t, which_clock,
+                      struct compat_timespec __user *, tp)
 {
        long err;
        mm_segment_t oldfs;
@@ -737,8 +737,8 @@ long compat_sys_clock_settime(clockid_t which_clock,
        return err;
 }
 
-long compat_sys_clock_gettime(clockid_t which_clock,
-               struct compat_timespec __user *tp)
+COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock,
+                      struct compat_timespec __user *, tp)
 {
        long err;
        mm_segment_t oldfs;
@@ -754,8 +754,8 @@ long compat_sys_clock_gettime(clockid_t which_clock,
        return err;
 }
 
-long compat_sys_clock_adjtime(clockid_t which_clock,
-               struct compat_timex __user *utp)
+COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock,
+                      struct compat_timex __user *, utp)
 {
        struct timex txc;
        mm_segment_t oldfs;
@@ -777,8 +777,8 @@ long compat_sys_clock_adjtime(clockid_t which_clock,
        return ret;
 }
 
-long compat_sys_clock_getres(clockid_t which_clock,
-               struct compat_timespec __user *tp)
+COMPAT_SYSCALL_DEFINE2(clock_getres, clockid_t, which_clock,
+                      struct compat_timespec __user *, tp)
 {
        long err;
        mm_segment_t oldfs;
@@ -818,9 +818,9 @@ static long compat_clock_nanosleep_restart(struct restart_block *restart)
        return err;
 }
 
-long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
-                           struct compat_timespec __user *rqtp,
-                           struct compat_timespec __user *rmtp)
+COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags,
+                      struct compat_timespec __user *, rqtp,
+                      struct compat_timespec __user *, rmtp)
 {
        long err;
        mm_segment_t oldfs;
@@ -1010,7 +1010,7 @@ COMPAT_SYSCALL_DEFINE4(rt_sigtimedwait, compat_sigset_t __user *, uthese,
 
 /* compat_time_t is a 32 bit "long" and needs to get converted. */
 
-asmlinkage long compat_sys_time(compat_time_t __user * tloc)
+COMPAT_SYSCALL_DEFINE1(time, compat_time_t __user *, tloc)
 {
        compat_time_t i;
        struct timeval tv;
@@ -1026,7 +1026,7 @@ asmlinkage long compat_sys_time(compat_time_t __user * tloc)
        return i;
 }
 
-asmlinkage long compat_sys_stime(compat_time_t __user *tptr)
+COMPAT_SYSCALL_DEFINE1(stime, compat_time_t __user *, tptr)
 {
        struct timespec tv;
        int err;
@@ -1046,7 +1046,7 @@ asmlinkage long compat_sys_stime(compat_time_t __user *tptr)
 
 #endif /* __ARCH_WANT_COMPAT_SYS_TIME */
 
-asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp)
+COMPAT_SYSCALL_DEFINE1(adjtimex, struct compat_timex __user *, utp)
 {
        struct timex txc;
        int err, ret;
@@ -1085,10 +1085,10 @@ asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_pages,
        return sys_move_pages(pid, nr_pages, pages, nodes, status, flags);
 }
 
-asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
-                       compat_ulong_t maxnode,
-                       const compat_ulong_t __user *old_nodes,
-                       const compat_ulong_t __user *new_nodes)
+COMPAT_SYSCALL_DEFINE4(migrate_pages, compat_pid_t, pid,
+                      compat_ulong_t, maxnode,
+                      const compat_ulong_t __user *, old_nodes,
+                      const compat_ulong_t __user *, new_nodes)
 {
        unsigned long __user *old = NULL;
        unsigned long __user *new = NULL;

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 1f4bcb3cc21cee5bcfd1b4e13a77eeff2af23a2b..adf98622cb32bdf0b995d25ca0c4477c098e9bcc 100644 (file)
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -1180,8 +1180,8 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request,
        return ret;
 }
 
-asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
-                                 compat_long_t addr, compat_long_t data)
+COMPAT_SYSCALL_DEFINE4(ptrace, compat_long_t, request, compat_long_t, pid,
+                      compat_long_t, addr, compat_long_t, data)
 {
        struct task_struct *child;
        long ret;