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-rw-r--r--net/sunrpc/backchannel_rqst.c9
-rw-r--r--net/sunrpc/clnt.c2
-rw-r--r--net/sunrpc/svcauth_unix.c22
-rw-r--r--net/sunrpc/svcsock.c12
-rw-r--r--net/sunrpc/xdr.c12
-rw-r--r--net/sunrpc/xprt.c2
-rw-r--r--net/sunrpc/xprtsock.c3
7 files changed, 24 insertions, 38 deletions
diff --git a/net/sunrpc/backchannel_rqst.c b/net/sunrpc/backchannel_rqst.c
index 31def68a0f6e..5a3d675d2f2f 100644
--- a/net/sunrpc/backchannel_rqst.c
+++ b/net/sunrpc/backchannel_rqst.c
@@ -176,13 +176,14 @@ out_free:
}
EXPORT_SYMBOL_GPL(xprt_setup_backchannel);
-/*
- * Destroys the backchannel preallocated structures.
+/**
+ * xprt_destroy_backchannel - Destroys the backchannel preallocated structures.
+ * @xprt: the transport holding the preallocated strucures
+ * @max_reqs the maximum number of preallocated structures to destroy
+ *
* Since these structures may have been allocated by multiple calls
* to xprt_setup_backchannel, we only destroy up to the maximum number
* of reqs specified by the caller.
- * @xprt: the transport holding the preallocated strucures
- * @max_reqs the maximum number of preallocated structures to destroy
*/
void xprt_destroy_backchannel(struct rpc_xprt *xprt, unsigned int max_reqs)
{
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index aaf70aa65904..b05df36692ff 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -385,7 +385,7 @@ out_no_rpciod:
return ERR_PTR(err);
}
-/*
+/**
* rpc_create - create an RPC client and transport with one call
* @args: rpc_clnt create argument structure
*
diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
index 2777fa896645..4d0129203733 100644
--- a/net/sunrpc/svcauth_unix.c
+++ b/net/sunrpc/svcauth_unix.c
@@ -104,23 +104,9 @@ static void ip_map_put(struct kref *kref)
kfree(im);
}
-#if IP_HASHBITS == 8
-/* hash_long on a 64 bit machine is currently REALLY BAD for
- * IP addresses in reverse-endian (i.e. on a little-endian machine).
- * So use a trivial but reliable hash instead
- */
-static inline int hash_ip(__be32 ip)
-{
- int hash = (__force u32)ip ^ ((__force u32)ip>>16);
- return (hash ^ (hash>>8)) & 0xff;
-}
-#endif
-static inline int hash_ip6(struct in6_addr ip)
+static inline int hash_ip6(const struct in6_addr *ip)
{
- return (hash_ip(ip.s6_addr32[0]) ^
- hash_ip(ip.s6_addr32[1]) ^
- hash_ip(ip.s6_addr32[2]) ^
- hash_ip(ip.s6_addr32[3]));
+ return hash_32(ipv6_addr_hash(ip), IP_HASHBITS);
}
static int ip_map_match(struct cache_head *corig, struct cache_head *cnew)
{
@@ -301,7 +287,7 @@ static struct ip_map *__ip_map_lookup(struct cache_detail *cd, char *class,
ip.m_addr = *addr;
ch = sunrpc_cache_lookup(cd, &ip.h,
hash_str(class, IP_HASHBITS) ^
- hash_ip6(*addr));
+ hash_ip6(addr));
if (ch)
return container_of(ch, struct ip_map, h);
@@ -331,7 +317,7 @@ static int __ip_map_update(struct cache_detail *cd, struct ip_map *ipm,
ip.h.expiry_time = expiry;
ch = sunrpc_cache_update(cd, &ip.h, &ipm->h,
hash_str(ipm->m_class, IP_HASHBITS) ^
- hash_ip6(ipm->m_addr));
+ hash_ip6(&ipm->m_addr));
if (!ch)
return -ENOMEM;
cache_put(ch, cd);
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index a6de09de5d21..18bc130255a7 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -43,6 +43,7 @@
#include <net/tcp_states.h>
#include <asm/uaccess.h>
#include <asm/ioctls.h>
+#include <trace/events/skb.h>
#include <linux/sunrpc/types.h>
#include <linux/sunrpc/clnt.h>
@@ -619,6 +620,8 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp)
if (!svc_udp_get_dest_address(rqstp, cmh)) {
net_warn_ratelimited("svc: received unknown control message %d/%d; dropping RPC reply datagram\n",
cmh->cmsg_level, cmh->cmsg_type);
+out_free:
+ trace_kfree_skb(skb, svc_udp_recvfrom);
skb_free_datagram_locked(svsk->sk_sk, skb);
return 0;
}
@@ -630,8 +633,7 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp)
if (csum_partial_copy_to_xdr(&rqstp->rq_arg, skb)) {
local_bh_enable();
/* checksum error */
- skb_free_datagram_locked(svsk->sk_sk, skb);
- return 0;
+ goto out_free;
}
local_bh_enable();
skb_free_datagram_locked(svsk->sk_sk, skb);
@@ -640,10 +642,8 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp)
rqstp->rq_arg.head[0].iov_base = skb->data +
sizeof(struct udphdr);
rqstp->rq_arg.head[0].iov_len = len;
- if (skb_checksum_complete(skb)) {
- skb_free_datagram_locked(svsk->sk_sk, skb);
- return 0;
- }
+ if (skb_checksum_complete(skb))
+ goto out_free;
rqstp->rq_xprt_ctxt = skb;
}
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index d65d380571bc..0afba1b4b656 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -152,7 +152,9 @@ EXPORT_SYMBOL_GPL(xdr_inline_pages);
/*
* Helper routines for doing 'memmove' like operations on a struct xdr_buf
- *
+ */
+
+/**
* _shift_data_right_pages
* @pages: vector of pages containing both the source and dest memory area.
* @pgto_base: page vector address of destination
@@ -214,7 +216,7 @@ _shift_data_right_pages(struct page **pages, size_t pgto_base,
} while ((len -= copy) != 0);
}
-/*
+/**
* _copy_to_pages
* @pages: array of pages
* @pgbase: page vector address of destination
@@ -258,7 +260,7 @@ _copy_to_pages(struct page **pages, size_t pgbase, const char *p, size_t len)
flush_dcache_page(*pgto);
}
-/*
+/**
* _copy_from_pages
* @p: pointer to destination
* @pages: array of pages
@@ -298,7 +300,7 @@ _copy_from_pages(char *p, struct page **pages, size_t pgbase, size_t len)
}
EXPORT_SYMBOL_GPL(_copy_from_pages);
-/*
+/**
* xdr_shrink_bufhead
* @buf: xdr_buf
* @len: bytes to remove from buf->head[0]
@@ -371,7 +373,7 @@ xdr_shrink_bufhead(struct xdr_buf *buf, size_t len)
buf->len = buf->buflen;
}
-/*
+/**
* xdr_shrink_pagelen
* @buf: xdr_buf
* @len: bytes to remove from buf->pages
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 3c83035cdaa9..a5a402a7d21f 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -531,7 +531,7 @@ void xprt_set_retrans_timeout_def(struct rpc_task *task)
}
EXPORT_SYMBOL_GPL(xprt_set_retrans_timeout_def);
-/*
+/**
* xprt_set_retrans_timeout_rtt - set a request's retransmit timeout
* @task: task whose timeout is to be set
*
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 890b03f8d877..62d0dac8f780 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1014,9 +1014,6 @@ static void xs_udp_data_ready(struct sock *sk, int len)
UDPX_INC_STATS_BH(sk, UDP_MIB_INDATAGRAMS);
- /* Something worked... */
- dst_confirm(skb_dst(skb));
-
xprt_adjust_cwnd(task, copied);
xprt_complete_rqst(task, copied);