redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

microblaze: remove sys_ipc

Browse source 
The ipc system call is now unused in microblaze,
as the system call table points directly to the
indidual system calls for IPC.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Arnd Bergmann 2009-06-18 19:55:35 +02:00 committed by Michal Simek
parent 3863dbceac
commit bfc0ca0d33
2 changed files with 1 additions and 100 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

99
arch/microblaze/kernel/sys_microblaze.c
View file

@ -33,105 +33,6 @@
#include <linux/unistd.h>
#include <asm/syscalls.h>
/*
* sys_ipc() is the de-multiplexer for the SysV IPC calls..
*
* This is really horribly ugly. This will be remove with new toolchain.
*/
asmlinkage long
sys_ipc(uint call, int first, int second, int third, void *ptr, long fifth)
{
int version, ret;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
ret = -EINVAL;
switch (call) {
case SEMOP:
ret = sys_semop(first, (struct sembuf *)ptr, second);
break;
case SEMGET:
ret = sys_semget(first, second, third);
break;
case SEMCTL:
{
union semun fourth;
if (!ptr)
break;
ret = (access_ok(VERIFY_READ, ptr, sizeof(long)) ? 0 : -EFAULT)
|| (get_user(fourth.__pad, (void **)ptr)) ;
if (ret)
break;
ret = sys_semctl(first, second, third, fourth);
break;
}
case MSGSND:
ret = sys_msgsnd(first, (struct msgbuf *) ptr, second, third);
break;
case MSGRCV:
switch (version) {
case 0: {
struct ipc_kludge tmp;
if (!ptr)
break;
ret = (access_ok(VERIFY_READ, ptr, sizeof(tmp))
? 0 : -EFAULT) || copy_from_user(&tmp,
(struct ipc_kludge *) ptr, sizeof(tmp));
if (ret)
break;
ret = sys_msgrcv(first, tmp.msgp, second, tmp.msgtyp,
third);
break;
}
default:
ret = sys_msgrcv(first, (struct msgbuf *) ptr,
second, fifth, third);
break;
}
break;
case MSGGET:
ret = sys_msgget((key_t) first, second);
break;
case MSGCTL:
ret = sys_msgctl(first, second, (struct msqid_ds *) ptr);
break;
case SHMAT:
switch (version) {
default: {
ulong raddr;
ret = access_ok(VERIFY_WRITE, (ulong *) third,
sizeof(ulong)) ? 0 : -EFAULT;
if (ret)
break;
ret = do_shmat(first, (char *) ptr, second, &raddr);
if (ret)
break;
ret = put_user(raddr, (ulong *) third);
break;
}
case 1: /* iBCS2 emulator entry point */
if (!segment_eq(get_fs(), get_ds()))
break;
ret = do_shmat(first, (char *) ptr, second,
(ulong *) third);
break;
}
break;
case SHMDT:
ret = sys_shmdt((char *)ptr);
break;
case SHMGET:
ret = sys_shmget(first, second, third);
break;
case SHMCTL:
ret = sys_shmctl(first, second, (struct shmid_ds *) ptr);
break;
}
return ret;
}
asmlinkage long microblaze_vfork(struct pt_regs *regs)
{

2
arch/microblaze/kernel/syscall_table.S
View file

@ -121,7 +121,7 @@ ENTRY(sys_call_table)
.long sys_wait4
.long sys_swapoff /* 115 */
.long sys_sysinfo
.long sys_ipc
.long sys_ni_syscall /* old sys_ipc */
.long sys_fsync
.long sys_ni_syscall /* sys_sigreturn_wrapper */
.long sys_clone /* 120 */