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net: socket: replace calls to sys_send() with __sys_sendto() 

sys_send() merely expands the parameters to __sys_sendto() by NULL and 0.
Open-code this in the two places which used sys_send() as a wrapper to
__sys_sendto().

This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net

Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This commit is contained in:
Dominik Brodowski 2018-03-13 19:52:00 +01:00
parent e1834a329d
commit f3bf896b1d
2 changed files with 3 additions and 2 deletions
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2
net/compat.c
View File

@ -837,7 +837,7 @@ COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args)
ret = __sys_socketpair(a0, a1, a[2], compat_ptr(a[3]));
break;
case SYS_SEND:
ret = sys_send(a0, compat_ptr(a1), a[2], a[3]);
ret = __sys_sendto(a0, compat_ptr(a1), a[2], a[3], NULL, 0);
break;
case SYS_SENDTO:
ret = __sys_sendto(a0, compat_ptr(a1), a[2], a[3],

3
net/socket.c
View File

@ -2558,7 +2558,8 @@ SYSCALL_DEFINE2(socketcall, int, call, unsigned long __user *, args)
err = __sys_socketpair(a0, a1, a[2], (int __user *)a[3]);
break;
case SYS_SEND:
err = sys_send(a0, (void __user *)a1, a[2], a[3]);
err = __sys_sendto(a0, (void __user *)a1, a[2], a[3],
NULL, 0);
break;
case SYS_SENDTO:
err = __sys_sendto(a0, (void __user *)a1, a[2], a[3],