Clean up: Enable the use of const arguments in higher level svc_ APIs
by adding const to the arguments of the helper functions in svc_xprt.h
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
include/linux/sunrpc/svc_xprt.h | 46 ++++++++++++++++++++++-----------------
1 files changed, 26 insertions(+), 20 deletions(-)
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
index c2aa8cd..ee21e8a 100644
--- a/include/linux/sunrpc/svc_xprt.h
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -88,29 +88,32 @@ static inline void svc_xprt_get(struct svc_xprt *xprt)
kref_get(&xprt->xpt_ref);
}
static inline void svc_xprt_set_local(struct svc_xprt *xprt,
- struct sockaddr *sa, int salen)
+ const struct sockaddr *sa,
+ const size_t salen)
{
memcpy(&xprt->xpt_local, sa, salen);
xprt->xpt_locallen = salen;
}
static inline void svc_xprt_set_remote(struct svc_xprt *xprt,
- struct sockaddr *sa, int salen)
+ const struct sockaddr *sa,
+ const size_t salen)
{
memcpy(&xprt->xpt_remote, sa, salen);
xprt->xpt_remotelen = salen;
}
-static inline unsigned short svc_addr_port(struct sockaddr *sa)
+static inline unsigned short svc_addr_port(const struct sockaddr *sa)
{
- unsigned short ret = 0;
+ const struct sockaddr_in *sin = (const struct sockaddr_in *)sa;
+ const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sa;
+
switch (sa->sa_family) {
case AF_INET:
- ret = ntohs(((struct sockaddr_in *)sa)->sin_port);
- break;
+ return ntohs(sin->sin_port);
case AF_INET6:
- ret = ntohs(((struct sockaddr_in6 *)sa)->sin6_port);
- break;
+ return ntohs(sin6->sin6_port);
}
- return ret;
+
+ return 0;
}
static inline int svc_addr_len(const struct sockaddr *sa)
@@ -125,36 +128,39 @@ static inline int svc_addr_len(const struct sockaddr *sa)
return -EAFNOSUPPORT;
}
-static inline unsigned short svc_xprt_local_port(struct svc_xprt *xprt)
+static inline unsigned short svc_xprt_local_port(const struct svc_xprt *xprt)
{
- return svc_addr_port((struct sockaddr *)&xprt->xpt_local);
+ return svc_addr_port((const struct sockaddr *)&xprt->xpt_local);
}
-static inline unsigned short svc_xprt_remote_port(struct svc_xprt *xprt)
+static inline unsigned short svc_xprt_remote_port(const struct svc_xprt *xprt)
{
- return svc_addr_port((struct sockaddr *)&xprt->xpt_remote);
+ return svc_addr_port((const struct sockaddr *)&xprt->xpt_remote);
}
-static inline char *__svc_print_addr(struct sockaddr *addr,
- char *buf, size_t len)
+static inline char *__svc_print_addr(const struct sockaddr *addr,
+ char *buf, const size_t len)
{
+ const struct sockaddr_in *sin = (const struct sockaddr_in *)addr;
+ const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)addr;
+
switch (addr->sa_family) {
case AF_INET:
- snprintf(buf, len, "%pI4, port=%u",
- &((struct sockaddr_in *)addr)->sin_addr,
- ntohs(((struct sockaddr_in *) addr)->sin_port));
+ snprintf(buf, len, "%pI4, port=%u", &sin->sin_addr,
+ ntohs(sin->sin_port));
break;
case AF_INET6:
snprintf(buf, len, "%pI6, port=%u",
- &((struct sockaddr_in6 *)addr)->sin6_addr,
- ntohs(((struct sockaddr_in6 *) addr)->sin6_port));
+ &sin6->sin6_addr,
+ ntohs(sin6->sin6_port));
break;
default:
snprintf(buf, len, "unknown address type: %d", addr->sa_family);
break;
}
+
return buf;
}
#endif /* SUNRPC_SVC_XPRT_H */
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