| Message ID | 20240620162316.3674955-13-arnd@kernel.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | linux system call fixes | expand |
On Thu, Jun 20, 2024 at 06:23:13PM +0200, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@arndb.de> > > The mmap2() syscall has never been used on 64-bit s390x and should > have been removed as part of 5a79859ae0f3 ("s390: remove 31 bit > support"). > > Remove it now. > > Signed-off-by: Arnd Bergmann <arnd@arndb.de> > --- > arch/s390/kernel/syscall.c | 27 --------------------------- > 1 file changed, 27 deletions(-) Acked-by: Heiko Carstens <hca@linux.ibm.com>
diff --git a/arch/s390/kernel/syscall.c b/arch/s390/kernel/syscall.c index dc2355c623d6..50cbcbbaa03d 100644 --- a/arch/s390/kernel/syscall.c +++ b/arch/s390/kernel/syscall.c @@ -38,33 +38,6 @@ #include "entry.h" -/* - * Perform the mmap() system call. Linux for S/390 isn't able to handle more - * than 5 system call parameters, so this system call uses a memory block - * for parameter passing. - */ - -struct s390_mmap_arg_struct { - unsigned long addr; - unsigned long len; - unsigned long prot; - unsigned long flags; - unsigned long fd; - unsigned long offset; -}; - -SYSCALL_DEFINE1(mmap2, struct s390_mmap_arg_struct __user *, arg) -{ - struct s390_mmap_arg_struct a; - int error = -EFAULT; - - if (copy_from_user(&a, arg, sizeof(a))) - goto out; - error = ksys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset); -out: - return error; -} - #ifdef CONFIG_SYSVIPC /* * sys_ipc() is the de-multiplexer for the SysV IPC calls.