This series adds cpu_relax() in registers polling busy loops and it is a well-known idiom in the kernel. Signed-off-by: Zhongqiu Han <quic_zhonhan@xxxxxxxxxxx> --- Zhongqiu Han (2): usb: dwc3: core: Call cpu_relax() in registers polling busy loops usb: xhci: ext-caps: Use cpu_relax() when polling registers drivers/usb/dwc3/core.c | 2 ++ drivers/usb/host/xhci-ext-caps.h | 2 ++ 2 files changed, 4 insertions(+) base-commit: 469f1bad3c1c6e268059f78c0eec7e9552b3894c -- 2.25.1
