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linux-user: Remove type casts to union type 

Casting to a union type is a gcc (and clang) extension. Other compilers
might not support it. This is not a problem today, but the type casts
can be removed easily. Smatch now no longer complains like before:

linux-user/syscall.c:3190:18: warning: cast to non-scalar
linux-user/syscall.c:7348:44: warning: cast to non-scalar

Cc: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Stefan Weil 2015-02-08 15:40:58 +01:00 committed by Michael Tokarev
parent c78d65e8a7
commit d1c002b6ae
1 changed files with 4 additions and 4 deletions
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8
linux-user/syscall.c
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@ -2728,8 +2728,9 @@ static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
}
static inline abi_long do_semctl(int semid, int semnum, int cmd,
union target_semun target_su)
abi_ulong target_arg)
{
union target_semun target_su = { .buf = target_arg };
union semun arg;
struct semid_ds dsarg;
unsigned short *array = NULL;
@ -3251,8 +3252,7 @@ static abi_long do_ipc(unsigned int call, abi_long first,
* ptr argument. */
abi_ulong atptr;
get_user_ual(atptr, ptr);
ret = do_semctl(first, second, third,
(union target_semun) atptr);
ret = do_semctl(first, second, third, atptr);
break;
}
@ -7550,7 +7550,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
#endif
#ifdef TARGET_NR_semctl
case TARGET_NR_semctl:
ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);
ret = do_semctl(arg1, arg2, arg3, arg4);
break;
#endif
#ifdef TARGET_NR_msgctl