In case dpaa2_io_service_rearm() fails with an error other then
EBUSY, it will do so silently; add a check for this and a warning
message, as a failure here means we're unable to receive any
more traffic on the current cpu.
Signed-off-by: Ioana Radulescu <ruxandra.radule...@nxp.com>
---
drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
index 6f009d1..f390de6 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
@@ -955,6 +955,8 @@ static int dpaa2_eth_poll(struct napi_struct *napi, int
budget)
err = dpaa2_io_service_rearm(NULL, &ch->nctx);
cpu_relax();
} while (err == -EBUSY);
+ WARN_ONCE(err, "CDAN notifications rearm failed on core %d",
+ ch->nctx.desired_cpu);
}
ch->stats.frames += cleaned;
--
2.7.4
_______________________________________________
devel mailing list
de...@linuxdriverproject.org
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
