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Subject2.4.23 and CONFIG_PROC_FS=n

When compiling 2.4.23 with CONFIG_PROC_FS disabled, I found a few
network-related files that don't compile:
1. net/atm/br2684.c
2. net/core/pktgen.c
3. net/ipv4/netfilter/ipt_recent.c

The patch below fixes 1 and 3. Note that 3 still generates a compiler warning
(`ip_list_perms' defined but not used).

The packet generator is a bit trickier, since its functionality seems to
depend completely on the proc file system.

--- linux-2.4.23/net/atm/br2684.c.orig 2003-10-01 20:49:26.000000000 +0200
+++ linux-2.4.23/net/atm/br2684.c 2003-11-30 12:06:32.000000000 +0100
@@ -678,6 +678,7 @@
return -ENOIOCTLCMD;
}

+#ifdef CONFIG_PROC_FS
/* Never put more than 256 bytes in at once */
static int br2684_proc_engine(loff_t pos, char *buf)
{
@@ -770,16 +771,19 @@
};

extern struct proc_dir_entry *atm_proc_root; /* from proc.c */
+#endif /* CONFIG_PROC_FS */

/* the following avoids some spurious warnings from the compiler */
#define UNUSED __attribute__((unused))

static int __init UNUSED br2684_init(void)
{
+#ifdef CONFIG_PROC_FS
struct proc_dir_entry *p;
if ((p = create_proc_entry("br2684", 0, atm_proc_root)) == NULL)
return -ENOMEM;
p->proc_fops = &br2684_proc_operations;
+#endif /* CONFIG_PROC_FS */
br2684_ioctl_set(br2684_ioctl);
return 0;
}
@@ -788,7 +792,9 @@
{
struct br2684_dev *brdev;
br2684_ioctl_set(NULL);
+#ifdef CONFIG_PROC_FS
remove_proc_entry("br2684", atm_proc_root);
+#endif /* CONFIG_PROC_FS */
while (!list_empty(&br2684_devs)) {
brdev = list_entry_brdev(br2684_devs.next);
unregister_netdev(&brdev->net_dev);
--- linux-2.4.23/net/ipv4/netfilter/ipt_recent.c.orig 2003-07-08 13:31:59.000000000 +0200
+++ linux-2.4.23/net/ipv4/netfilter/ipt_recent.c 2003-11-30 19:24:09.000000000 +0100
@@ -91,9 +91,6 @@
*/
static spinlock_t recent_lock = SPIN_LOCK_UNLOCKED;

-/* Our /proc/net/ipt_recent entry */
-static struct proc_dir_entry *proc_net_ipt_recent = NULL;
-
/* Function declaration for later. */
static int
match(const struct sk_buff *skb,
@@ -123,6 +120,9 @@
}

#ifdef CONFIG_PROC_FS
+/* Our /proc/net/ipt_recent entry */
+static struct proc_dir_entry *proc_net_ipt_recent = NULL;
+
/* This is the function which produces the output for our /proc output
* interface which lists each IP address, the last seen time and the
* other recent times the address was seen.
@@ -963,8 +963,10 @@
int count;

printk(version);
+#ifdef CONFIG_PROC_FS
proc_net_ipt_recent = proc_mkdir("ipt_recent",proc_net);
if(!proc_net_ipt_recent) return -ENOMEM;
+#endif /* CONFIG_PROC_FS */

if(ip_list_hash_size && ip_list_hash_size <= ip_list_tot) {
printk(KERN_WARNING RECENT_NAME ": ip_list_hash_size too small, resetting to default.\n");
@@ -990,7 +992,9 @@
{
ipt_unregister_match(&recent_match);

+#ifdef CONFIG_PROC_FS
remove_proc_entry("ipt_recent",proc_net);
+#endif /* CONFIG_PROC_FS */
}

/* Register our module with the kernel. */
Gr{oetje,eeting}s,
Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

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