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authorEric Dumazet <edumazet@google.com>2012-04-26 20:07:59 +0000
committerDavid S. Miller <davem@davemloft.net>2012-04-27 02:14:21 -0400
commit82981930125abfd39d7c8378a9cfdf5e1be2002b (patch)
tree1c5ee5b39af1f39cca3f598beb4e187ae96da685
parentc60f6aa8acfd93f4550c7d5eb03351d4cbd1460d (diff)
net: cleanups in sock_setsockopt()
Use min_t()/max_t() macros, reformat two comments, use !!test_bit() to match !!sock_flag() Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/core/sock.c42
1 files changed, 15 insertions, 27 deletions
diff --git a/net/core/sock.c b/net/core/sock.c
index 0431aaf7473..10605d2ec86 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -577,23 +577,15 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
break;
case SO_SNDBUF:
/* Don't error on this BSD doesn't and if you think
- about it this is right. Otherwise apps have to
- play 'guess the biggest size' games. RCVBUF/SNDBUF
- are treated in BSD as hints */
-
- if (val > sysctl_wmem_max)
- val = sysctl_wmem_max;
+ * about it this is right. Otherwise apps have to
+ * play 'guess the biggest size' games. RCVBUF/SNDBUF
+ * are treated in BSD as hints
+ */
+ val = min_t(u32, val, sysctl_wmem_max);
set_sndbuf:
sk->sk_userlocks |= SOCK_SNDBUF_LOCK;
- if ((val * 2) < SOCK_MIN_SNDBUF)
- sk->sk_sndbuf = SOCK_MIN_SNDBUF;
- else
- sk->sk_sndbuf = val * 2;
-
- /*
- * Wake up sending tasks if we
- * upped the value.
- */
+ sk->sk_sndbuf = max_t(u32, val * 2, SOCK_MIN_SNDBUF);
+ /* Wake up sending tasks if we upped the value. */
sk->sk_write_space(sk);
break;
@@ -606,12 +598,11 @@ set_sndbuf:
case SO_RCVBUF:
/* Don't error on this BSD doesn't and if you think
- about it this is right. Otherwise apps have to
- play 'guess the biggest size' games. RCVBUF/SNDBUF
- are treated in BSD as hints */
-
- if (val > sysctl_rmem_max)
- val = sysctl_rmem_max;
+ * about it this is right. Otherwise apps have to
+ * play 'guess the biggest size' games. RCVBUF/SNDBUF
+ * are treated in BSD as hints
+ */
+ val = min_t(u32, val, sysctl_rmem_max);
set_rcvbuf:
sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
/*
@@ -629,10 +620,7 @@ set_rcvbuf:
* returning the value we actually used in getsockopt
* is the most desirable behavior.
*/
- if ((val * 2) < SOCK_MIN_RCVBUF)
- sk->sk_rcvbuf = SOCK_MIN_RCVBUF;
- else
- sk->sk_rcvbuf = val * 2;
+ sk->sk_rcvbuf = max_t(u32, val * 2, SOCK_MIN_RCVBUF);
break;
case SO_RCVBUFFORCE:
@@ -975,7 +963,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
break;
case SO_PASSCRED:
- v.val = test_bit(SOCK_PASSCRED, &sock->flags) ? 1 : 0;
+ v.val = !!test_bit(SOCK_PASSCRED, &sock->flags);
break;
case SO_PEERCRED:
@@ -1010,7 +998,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
break;
case SO_PASSSEC:
- v.val = test_bit(SOCK_PASSSEC, &sock->flags) ? 1 : 0;
+ v.val = !!test_bit(SOCK_PASSSEC, &sock->flags);
break;
case SO_PEERSEC: