linux-kernel - [PATCH -next 17/22] net: socket: replace call to sys_recv() with __sys

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Date:   Fri, 16 Mar 2018 18:06:09 +0100
From:   Dominik Brodowski <linux@...inikbrodowski.net>
To:     linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
        davem@...emloft.net
Cc:     netdev@...r.kernel.org
Subject: [PATCH -next 17/22] 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().

Cc: David S. Miller <davem@...emloft.net>
Cc: netdev@...r.kernel.org
Signed-off-by: Dominik Brodowski <linux@...inikbrodowski.net>
---
 net/compat.c | 3 ++-
 net/socket.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

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 c4fb60be194b..34cf4b163f8f 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],
-- 
2.16.2