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netfilter: xtables: mark initial tables constant

Browse source 
The inputted table is never modified, so should be considered const.

Signed-off-by: Jan Engelhardt <[email protected]>
Signed-off-by: Patrick McHardy <[email protected]>
This commit is contained in:
Jan Engelhardt 2009-08-24 14:56:30 +02:00 • committed by Patrick McHardy
commit 35aad0ffdf
22 changed files with 42 additions and 37 deletions
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2
net/bridge/netfilter/ebtable_broute.c
View file

@ -41,7 +41,7 @@ static int check(const struct ebt_table_info *info, unsigned int valid_hooks)
return 0;
}
static struct ebt_table broute_table =
static const struct ebt_table broute_table =
{
.name = "broute",
.table = &initial_table,

2
net/bridge/netfilter/ebtable_filter.c
View file

@ -50,7 +50,7 @@ static int check(const struct ebt_table_info *info, unsigned int valid_hooks)
return 0;
}
static struct ebt_table frame_filter =
static const struct ebt_table frame_filter =
{
.name = "filter",
.table = &initial_table,

13
net/bridge/netfilter/ebtables.c
View file

@ -1103,23 +1103,24 @@ free_newinfo:
return ret;
}
struct ebt_table *ebt_register_table(struct net *net, struct ebt_table *table)
struct ebt_table *
ebt_register_table(struct net *net, const struct ebt_table *input_table)
{
struct ebt_table_info *newinfo;
struct ebt_table *t;
struct ebt_table *t, *table;
struct ebt_replace_kernel *repl;
int ret, i, countersize;
void *p;
if (!table || !(repl = table->table) || !repl->entries ||
repl->entries_size == 0 ||
repl->counters || table->private) {
if (input_table == NULL || (repl = input_table->table) == NULL ||
repl->entries == 0 || repl->entries_size == 0 ||
repl->counters != NULL || input_table->private != NULL) {
BUGPRINT("Bad table data for ebt_register_table!!!\n");
return ERR_PTR(-EINVAL);
}
/* Don't add one table to multiple lists. */
table = kmemdup(table, sizeof(struct ebt_table), GFP_KERNEL);
table = kmemdup(input_table, sizeof(struct ebt_table), GFP_KERNEL);
if (!table) {
ret = -ENOMEM;
goto out;