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USB: fix build with XEN and EARLY_PRINTK_DBGP enabled but USB_SUPPORT disabled

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Since there's no possible caller of dbgp_external_startup() and
dbgp_reset_prep() when !USB_EHCI_HCD, there's no point in building and
exporting these functions in that case. This eliminates a build error
under the conditions listed in the subject, introduced with the merge
f1c6872e49.

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jan Beulich 2012-10-29 16:45:54 +00:00 committed by Greg Kroah-Hartman
parent d067a31553
commit 86effe5980
1 changed files with 9 additions and 6 deletions
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15
drivers/usb/early/ehci-dbgp.c
View file

@ -20,6 +20,7 @@
#include <linux/usb/ehci_def.h>
#include <linux/delay.h>
#include <linux/serial_core.h>
#include <linux/kconfig.h>
#include <linux/kgdb.h>
#include <linux/kthread.h>
#include <asm/io.h>
@ -614,12 +615,6 @@ static int _dbgp_external_startup(void)
return -ENODEV;
}
int dbgp_external_startup(struct usb_hcd *hcd)
{
return xen_dbgp_external_startup(hcd) ?: _dbgp_external_startup();
}
EXPORT_SYMBOL_GPL(dbgp_external_startup);
static int ehci_reset_port(int port)
{
u32 portsc;
@ -979,6 +974,7 @@ struct console early_dbgp_console = {
.index = -1,
};
#if IS_ENABLED(CONFIG_USB_EHCI_HCD)
int dbgp_reset_prep(struct usb_hcd *hcd)
{
int ret = xen_dbgp_reset_prep(hcd);
@ -1007,6 +1003,13 @@ int dbgp_reset_prep(struct usb_hcd *hcd)
}
EXPORT_SYMBOL_GPL(dbgp_reset_prep);
int dbgp_external_startup(struct usb_hcd *hcd)
{
return xen_dbgp_external_startup(hcd) ?: _dbgp_external_startup();
}
EXPORT_SYMBOL_GPL(dbgp_external_startup);
#endif /* USB_EHCI_HCD */
#ifdef CONFIG_KGDB
static char kgdbdbgp_buf[DBGP_MAX_PACKET];