From: Stephen Rothwell Subject: [PATCH] virtio: virtio console can be a module Today's linux-next build (x86_64 allmodconfig) failed like this: ERROR: "hvc_alloc" [drivers/char/virtio_console.ko] undefined! ERROR: "hvc_kick" [drivers/char/virtio_console.ko] undefined! ERROR: "hvc_poll" [drivers/char/virtio_console.ko] undefined! ERROR: "hvc_instantiate" [drivers/char/virtio_console.ko] undefined! So it needs these symbols exported. Signed-off-by: Stephen Rothwell Signed-off-by: Rusty Russell Acked-by: Christian Borntraeger --- drivers/char/hvc_console.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c --- a/drivers/char/hvc_console.c +++ b/drivers/char/hvc_console.c @@ -281,6 +281,7 @@ int hvc_instantiate(uint32_t vtermno, in return 0; } +EXPORT_SYMBOL_GPL(hvc_instantiate); /* Wake the sleeping khvcd */ void hvc_kick(void) @@ -288,6 +289,7 @@ void hvc_kick(void) hvc_kicked = 1; wake_up_process(hvc_task); } +EXPORT_SYMBOL_GPL(hvc_kick); static void hvc_unthrottle(struct tty_struct *tty) { @@ -630,6 +632,7 @@ int hvc_poll(struct hvc_struct *hp) return poll_mask; } +EXPORT_SYMBOL_GPL(hvc_poll); #if defined(CONFIG_XMON) && defined(CONFIG_SMP) extern cpumask_t cpus_in_xmon; @@ -746,6 +749,7 @@ struct hvc_struct __devinit *hvc_alloc(u return hp; } +EXPORT_SYMBOL_GPL(hvc_alloc); int __devexit hvc_remove(struct hvc_struct *hp) {