From 3a49a0f7181c243aa04e6c5e44ca70a90ead8f9a Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Tue, 4 Mar 2014 17:09:57 +0100 Subject: [PATCH] net/compat: convert to COMPAT_SYSCALL_DEFINE with changing parameter types In order to allow the COMPAT_SYSCALL_DEFINE macro generate code that performs proper zero and sign extension convert all 64 bit parameters to their corresponding 32 bit compat counterparts. Signed-off-by: Heiko Carstens --- include/linux/compat.h | 4 ++-- net/compat.c | 8 ++++---- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/include/linux/compat.h b/include/linux/compat.h index f670e591aff8..8e636211f334 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -569,9 +569,9 @@ asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg, unsigned vlen, unsigned int flags); asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg, unsigned int flags); -asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len, +asmlinkage long compat_sys_recv(int fd, void __user *buf, compat_size_t len, unsigned flags); -asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len, +asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, compat_size_t len, unsigned flags, struct sockaddr __user *addr, int __user *addrlen); asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg, diff --git a/net/compat.c b/net/compat.c index 706b78be9a23..9a76eaf63184 100644 --- a/net/compat.c +++ b/net/compat.c @@ -758,14 +758,14 @@ COMPAT_SYSCALL_DEFINE3(recvmsg, int, fd, struct compat_msghdr __user *, msg, uns return __sys_recvmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT); } -asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len, unsigned int flags) +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); } -asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len, - unsigned int flags, struct sockaddr __user *addr, - int __user *addrlen) +COMPAT_SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, buf, compat_size_t, len, + unsigned int, flags, struct sockaddr __user *, addr, + int __user *, addrlen) { return sys_recvfrom(fd, buf, len, flags | MSG_CMSG_COMPAT, addr, addrlen); }