| Message ID | AANLkTikTWejPTTS1Xt6mk86u=_HKSX==Y=d2iyqKFb8m@mail.gmail.com (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Delegated to: | Kumar Gala |
| Headers | show |
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c index 9725369..9f99bef 100644 --- a/arch/powerpc/sysdev/fsl_rio.c +++ b/arch/powerpc/sysdev/fsl_rio.c @@ -973,7 +973,6 @@ fsl_rio_dbell_handler(int irq, void *dev_instance) if (dsr & DOORBELL_DSR_QFI) { pr_info("RIO: doorbell queue full\n"); out_be32(&priv->msg_regs->dsr, DOORBELL_DSR_QFI); - goto out; } /* XXX Need to check/dispatch until queue empty */
In fsl_rio_dbell_handler, the code currently simply acknowledges the QFI queue full interrupt, but does nothing to resolve the queue full condition. Instead, it jumps to the end of the isr. When a queue full condition occurs, the isr is then re-entered immediately and continually, forever. The fix is to just fall through and read out current doorbell entries. Tested against 2.6.26-rc8 on a p2020 Signed-off-by: Thomas Taranowski <tom@baringforge.com> --- arch/powerpc/sysdev/fsl_rio.c | 1 - 1 files changed, 0 insertions(+), 1 deletions(-)