[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/fib_hash.c b/net/ipv4/fib_hash.c
index 2a8c9af..7ea0209 100644
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -975,7 +975,7 @@
static unsigned fib_flag_trans(int type, u32 mask, struct fib_info *fi)
{
- static unsigned type2flags[RTN_MAX + 1] = {
+ static const unsigned type2flags[RTN_MAX + 1] = {
[7] = RTF_REJECT, [8] = RTF_REJECT,
};
unsigned flags = type2flags[type];