Hello, usually when I want to change a single kernel option I just open .config in my editor, remove the line for the config item I want to change and run oldconfig. For DEBUG_LL (defined in arch/arm/Kconfig.debug) this doesn't work as usual though. On 3.3-rc1 the following happens: make ARCH=arm at91rm9200_defconfig sed -i /CONFIG_DEBUG_LL/d .config make ARCH=arm oldconfig The last command then asks me for DEBUG_LL, after specifying 'y', the output looks as follows: Verbose user fault messages (DEBUG_USER) [N/y/?] n Kernel low-level debugging functions (read help!) (DEBUG_LL) [N/y/?] (NEW) y Kernel low-level debugging port > 1. No low-level debugging UART (DEBUG_LL_UART_NONE) (NEW) 2. Kernel low-level debugging via EmbeddedICE DCC channel (DEBUG_ICEDCC) (NEW) 3. Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl (AT91_DEBUG_LL_DBGU0) (NEW) choice[1-3]: 1 Early printk (EARLY_PRINTK) [N/y/?] (NEW) Note that I didn't specify the '1' for the choice even though all items are marked as new and oldconfig only starts at EARLY_PRINTK to ask again. I would have expected to be able to select AT91_DEBUG_LL_DBGU0. This is not intended, is it? Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
