On Thu, Oct 22, 2015 at 08:06:31PM -0700, Greg KH wrote: > On Fri, Oct 23, 2015 at 10:43:46AM +0800, Peter Chen wrote: > > Since we need to mount debugfs to show/store the things we > > want to debug, it is duplicated to add another configuration > > to enable it. Meanwhile, with CONFIG_USB_CHIPIDEA_DEBUG, > > we can't support chipidea debugfs at runtime. > > Why not also delete the config option? Why do you still need it with > dynamic debug these days? > Maybe the CONFIG_DYNAMIC_DEBUG is not enabled for most of platforms by default [1], adding CONFIG_DYNAMIC_DEBUG needs to rebuild all kernel source and wait more time. But you are right, we have dynamic debug already, why not using it for all code? I will try to see if chipidea and usb gadget can use it well. [1] b29397@shlinux2:~/work/projects/usb$ grep -rn CONFIG_DYNAMIC_DEBUG arch/arm/configs/* arch/arm/configs/bcm2835_defconfig:124:CONFIG_DYNAMIC_DEBUG=y arch/arm/configs/mmp2_defconfig:91:# CONFIG_DYNAMIC_DEBUG is not set arch/arm/configs/qcom_defconfig:171:CONFIG_DYNAMIC_DEBUG=y arch/arm/configs/zx_defconfig:124:CONFIG_DYNAMIC_DEBUG=y -- Best Regards, Peter Chen -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html