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SubjectRe: BUG with no HOTPLUG set.
On Fri, 17 Nov 2000, Cezary Kaliszyk wrote:

> When I try to compile 2.4.0test11pre6 without HOTPLUG make says:
>
> gcc -D__KERNEL__ -I/usr/src/linux-2.4/include -Wall -Wstrict-prototypes
> -O2 -fomit-frame-pointer -fno-strict-aliasing -pipe
> -mpreferred-stack-boundary=2 -march=i686 -c -o dev.o dev.c
> dev.c: In function `run_sbin_hotplug':
> dev.c:2736: `hotplug_path' undeclared (first use in this function)
> dev.c:2736: (Each undeclared identifier is reported only once
> dev.c:2736: for each function it appears in.)
> make[3]: *** [dev.o] Error 1
> make[3]: Leaving directory `/usr/src/linux-2.4/net/core'
> make[2]: *** [first_rule] Error 2
> make[2]: Leaving directory `/usr/src/linux-2.4/net/core'
> make[1]: *** [_subdir_core] Error 2
> make[1]: Leaving directory `/usr/src/linux-2.4/net'
> make: *** [_dir_net] Error 2
>
> It looks like /net/core/dev.c should add functions like run_sbin_hotplug
> only if CONFIG_HOTPLUG is set.

no, not just there but also in init/main.c the patch below has been posted
here ages ago and a similar one even earlier (so I was told, I didn't
check).

Regards,
Tigran

diff -urN -X dontdiff linux/init/main.c work/init/main.c
--- linux/init/main.c Fri Nov 17 10:29:34 2000
+++ work/init/main.c Fri Nov 17 11:27:27 2000
@@ -712,11 +712,13 @@
init_pcmcia_ds(); /* Do this last */
#endif

+#ifdef CONFIG_HOTPLUG
/* do this after other 'do this last' stuff, because we want
* to minimize spurious executions of /sbin/hotplug
* during boot-up
*/
net_notifier_init();
+#endif

/* Mount the root filesystem.. */
mount_root();
diff -urN -X dontdiff linux/net/core/dev.c work/net/core/dev.c
--- linux/net/core/dev.c Fri Nov 17 10:29:34 2000
+++ work/net/core/dev.c Fri Nov 17 11:27:15 2000
@@ -2704,6 +2704,7 @@
return 0;
}

+#ifdef CONFIG_HOTPLUG

/* Notify userspace when a netdevice event occurs,
* by running '/sbin/hotplug net' with certain
@@ -2765,3 +2766,4 @@
printk (KERN_WARNING "unable to register netdev notifier\n"
KERN_WARNING "/sbin/hotplug will not be run.\n");
}
+#endif
-
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