[NET]: Add const markers to various variables.
the patch below marks various variables const in net/; the goal is to
move them to the .rodata section so that they can't false-share
cachelines with things that get written to, as well as potentially
helping gcc a bit with optimisations. (these were found using a gcc
patch to warn about such variables)
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/ipvs/ip_vs_ctl.c b/net/ipv4/ipvs/ip_vs_ctl.c
index 2d66848..9bdcf31 100644
--- a/net/ipv4/ipvs/ip_vs_ctl.c
+++ b/net/ipv4/ipvs/ip_vs_ctl.c
@@ -1909,7 +1909,7 @@
#define DAEMON_ARG_LEN (sizeof(struct ip_vs_daemon_user))
#define MAX_ARG_LEN SVCDEST_ARG_LEN
-static unsigned char set_arglen[SET_CMDID(IP_VS_SO_SET_MAX)+1] = {
+static const unsigned char set_arglen[SET_CMDID(IP_VS_SO_SET_MAX)+1] = {
[SET_CMDID(IP_VS_SO_SET_ADD)] = SERVICE_ARG_LEN,
[SET_CMDID(IP_VS_SO_SET_EDIT)] = SERVICE_ARG_LEN,
[SET_CMDID(IP_VS_SO_SET_DEL)] = SERVICE_ARG_LEN,
@@ -2180,7 +2180,7 @@
#define GET_TIMEOUT_ARG_LEN (sizeof(struct ip_vs_timeout_user))
#define GET_DAEMON_ARG_LEN (sizeof(struct ip_vs_daemon_user) * 2)
-static unsigned char get_arglen[GET_CMDID(IP_VS_SO_GET_MAX)+1] = {
+static const unsigned char get_arglen[GET_CMDID(IP_VS_SO_GET_MAX)+1] = {
[GET_CMDID(IP_VS_SO_GET_VERSION)] = 64,
[GET_CMDID(IP_VS_SO_GET_INFO)] = GET_INFO_ARG_LEN,
[GET_CMDID(IP_VS_SO_GET_SERVICES)] = GET_SERVICES_ARG_LEN,