On Tue, Sep 22, 2015 at 06:58:32PM +0300, Peter Mamonov wrote:
> Signed-off-by: Peter Mamonov <pmamonov@xxxxxxxxx>
> ---
> drivers/usb/host/ehci-hcd.c | 38 ++++++++++++++++++++++++++++++++++----
> 1 file changed, 34 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
> index e6748b0..d6df7b8 100644
> --- a/drivers/usb/host/ehci-hcd.c
> +++ b/drivers/usb/host/ehci-hcd.c
> @@ -51,6 +51,8 @@ struct ehci_priv {
> int periodic_schedules;
> struct QH *periodic_queue;
> uint32_t *periodic_list;
> + int sem;
> + struct device_d *usedby;
> };
>
> struct int_queue {
> @@ -136,6 +138,16 @@ static struct descriptor {
>
> #define ehci_is_TDI() (ehci->flags & EHCI_HAS_TT)
>
> +#define ehci_reentrance_detect(ehci) \
> + if (ehci->sem) \
> + dev_err(&dev->dev, "%s: re-entrance %d (%s:%s)\n", \
> + __func__, \
> + ehci->sem, \
> + ehci->usedby->driver->name, \
> + ehci->usedby->name); \
> + ehci->sem++; \
> + ehci->usedby = &dev->dev;
This should be a static inline function rather than a define. You can
pass the function name as const char *.
Sascha
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