Messages in this thread Patch in this message | | | Date | Mon, 6 Oct 2008 09:33:08 -0700 (PDT) | From | "Randy.Dunlap" <> | Subject | [patch] Re: how to link to hrtimers in the kernel |
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On Mon, 6 Oct 2008, George Nychis wrote:
> Hi all, > > I have modified drivers/usb/core/devio.c to use hrtimer_nanosleep(), and have > included linux/hrtimer.h with it. > > But now I am having trouble linking, I get: > ERROR: "hrtimer_nanosleep" [drivers/usb/core/usbcore.ko] undefined! > > How do I properly link to the hrtimer library?
Hi, That function needs to be exported in its source file. Patch below should fix it for you.
From: Randy Dunlap <randy.dunlap@oracle.com>
Export hrtimer_nanosleep() for module use.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> --- kernel/hrtimer.c | 1 + 1 file changed, 1 insertion(+)
--- linux-2.6.27-rc8-git5.orig/kernel/hrtimer.c +++ linux-2.6.27-rc8-git5/kernel/hrtimer.c @@ -1559,6 +1559,7 @@ out: destroy_hrtimer_on_stack(&t.timer); return ret; } +EXPORT_SYMBOL_GPL(hrtimer_nanosleep); asmlinkage long sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp)
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