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authorChristoph Hellwig <hch@lst.de>2020-07-23 08:09:07 +0200
committerDavid S. Miller <davem@davemloft.net>2020-07-24 15:41:54 -0700
commita7b75c5a8c41445f33efb663887ff5f5c3b4454b (patch)
treea87e011ba3a0d76fda030b3a62080caa97fae1ef /net/atm
parentd38d2b00ba64b3f2f30d70a7929000606d2c4509 (diff)
net: pass a sockptr_t into ->setsockopt
Rework the remaining setsockopt code to pass a sockptr_t instead of a plain user pointer. This removes the last remaining set_fs(KERNEL_DS) outside of architecture specific code. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> [ieee802154] Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/atm')
-rw-r--r--net/atm/common.c6
-rw-r--r--net/atm/common.h2
-rw-r--r--net/atm/pvc.c2
-rw-r--r--net/atm/svc.c6
4 files changed, 8 insertions, 8 deletions
diff --git a/net/atm/common.c b/net/atm/common.c
index 9b28f1fb3c69..84367b844b14 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -745,7 +745,7 @@ static int check_qos(const struct atm_qos *qos)
}
int vcc_setsockopt(struct socket *sock, int level, int optname,
- char __user *optval, unsigned int optlen)
+ sockptr_t optval, unsigned int optlen)
{
struct atm_vcc *vcc;
unsigned long value;
@@ -760,7 +760,7 @@ int vcc_setsockopt(struct socket *sock, int level, int optname,
{
struct atm_qos qos;
- if (copy_from_user(&qos, optval, sizeof(qos)))
+ if (copy_from_sockptr(&qos, optval, sizeof(qos)))
return -EFAULT;
error = check_qos(&qos);
if (error)
@@ -774,7 +774,7 @@ int vcc_setsockopt(struct socket *sock, int level, int optname,
return 0;
}
case SO_SETCLP:
- if (get_user(value, (unsigned long __user *)optval))
+ if (copy_from_sockptr(&value, optval, sizeof(value)))
return -EFAULT;
if (value)
vcc->atm_options |= ATM_ATMOPT_CLP;
diff --git a/net/atm/common.h b/net/atm/common.h
index 5850649068bb..a1e56e8de698 100644
--- a/net/atm/common.h
+++ b/net/atm/common.h
@@ -21,7 +21,7 @@ __poll_t vcc_poll(struct file *file, struct socket *sock, poll_table *wait);
int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int vcc_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int vcc_setsockopt(struct socket *sock, int level, int optname,
- char __user *optval, unsigned int optlen);
+ sockptr_t optval, unsigned int optlen);
int vcc_getsockopt(struct socket *sock, int level, int optname,
char __user *optval, int __user *optlen);
void vcc_process_recv_queue(struct atm_vcc *vcc);
diff --git a/net/atm/pvc.c b/net/atm/pvc.c
index 02bd2a436bdf..53e7d3f39e26 100644
--- a/net/atm/pvc.c
+++ b/net/atm/pvc.c
@@ -63,7 +63,7 @@ static int pvc_connect(struct socket *sock, struct sockaddr *sockaddr,
}
static int pvc_setsockopt(struct socket *sock, int level, int optname,
- char __user *optval, unsigned int optlen)
+ sockptr_t optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
int error;
diff --git a/net/atm/svc.c b/net/atm/svc.c
index ba144d035e3d..4a02bcaad279 100644
--- a/net/atm/svc.c
+++ b/net/atm/svc.c
@@ -451,7 +451,7 @@ int svc_change_qos(struct atm_vcc *vcc, struct atm_qos *qos)
}
static int svc_setsockopt(struct socket *sock, int level, int optname,
- char __user *optval, unsigned int optlen)
+ sockptr_t optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
struct atm_vcc *vcc = ATM_SD(sock);
@@ -464,7 +464,7 @@ static int svc_setsockopt(struct socket *sock, int level, int optname,
error = -EINVAL;
goto out;
}
- if (copy_from_user(&vcc->sap, optval, optlen)) {
+ if (copy_from_sockptr(&vcc->sap, optval, optlen)) {
error = -EFAULT;
goto out;
}
@@ -475,7 +475,7 @@ static int svc_setsockopt(struct socket *sock, int level, int optname,
error = -EINVAL;
goto out;
}
- if (get_user(value, (int __user *)optval)) {
+ if (copy_from_sockptr(&value, optval, sizeof(int))) {
error = -EFAULT;
goto out;
}