From: Dominik Brodowski Date: Tue, 13 Mar 2018 18:54:17 +0000 (+0100) Subject: net: socket: replace call to sys_recv() with __sys_recvfrom() X-Git-Tag: v4.17-rc1~161^2~85 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=d27e9afc64206b5a2fe02561716cee5be9aacf01;p=linux.git net: socket: replace call to sys_recv() with __sys_recvfrom() sys_recv() merely expands the parameters to __sys_recvfrom() by NULL and NULL. Open-code this in the two places which used sys_recv() as a wrapper to __sys_recvfrom(). 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 Cc: netdev@vger.kernel.org Signed-off-by: Dominik Brodowski --- diff --git a/net/compat.c b/net/compat.c index d55982ff5c59..9e0d030063ad 100644 --- a/net/compat.c +++ b/net/compat.c @@ -755,7 +755,8 @@ COMPAT_SYSCALL_DEFINE3(recvmsg, int, fd, struct compat_msghdr __user *, msg, uns COMPAT_SYSCALL_DEFINE4(recv, int, fd, void __user *, buf, compat_size_t, len, unsigned int, flags) { - return sys_recv(fd, buf, len, flags | MSG_CMSG_COMPAT); + return __sys_recvfrom(fd, buf, len, flags | MSG_CMSG_COMPAT, NULL, + NULL); } COMPAT_SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, buf, compat_size_t, len, diff --git a/net/socket.c b/net/socket.c index 92de21bb1a2e..03702f08aa62 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2566,7 +2566,8 @@ SYSCALL_DEFINE2(socketcall, int, call, unsigned long __user *, args) (struct sockaddr __user *)a[4], a[5]); break; case SYS_RECV: - err = sys_recv(a0, (void __user *)a1, a[2], a[3]); + err = __sys_recvfrom(a0, (void __user *)a1, a[2], a[3], + NULL, NULL); break; case SYS_RECVFROM: err = __sys_recvfrom(a0, (void __user *)a1, a[2], a[3],