usbnet driver uses tasklet as bottom half handler. Since tasklet runs in interrupt context in case of high throughput driver is spending more time in interrupt context to process rx buffers this is causing watch dog reset. Hence replace the tasklet with workqueue to avoid watchdog reset. CRs-Fixed: 378526 Change-Id: I8eac339e37d734dbaaf7a2e874d3974f562e8680 Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>