I have CONFIG_SERIAL_8250=m. With 4.2 '/sbin/modprobe 8250' worked and resulted in:
[ 41.354550] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled [ 41.375156] serial8250: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A With 4.3-rc1 however the command fails and logs the following: [ 34.140300] 8250_base: module license 'unspecified' taints kernel. [ 34.141846] Disabling lock debugging due to kernel taint [ 34.143388] 8250_base: Unknown symbol uart_insert_char (err 0) [ 34.144908] 8250_base: Unknown symbol uart_handle_dcd_change (err 0) [ 34.146439] 8250_base: Unknown symbol __pm_runtime_resume (err 0) [ 34.147901] 8250_base: Unknown symbol tty_termios_encode_baud_rate (err 0) [ 34.149354] 8250_base: Unknown symbol uart_handle_cts_change (err 0) [ 34.150798] 8250_base: Unknown symbol __pm_runtime_suspend (err 0) [ 34.152240] 8250_base: Unknown symbol nr_irqs (err 0) Relevant .config fragments: CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODVERSIONS=y # CONFIG_SERIAL_NONSTANDARD is not set CONFIG_SERIAL_8250=m # CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set # CONFIG_SERIAL_8250_PNP is not set # CONFIG_SERIAL_8250_PCI is not set CONFIG_SERIAL_8250_NR_UARTS=4 CONFIG_SERIAL_8250_RUNTIME_UARTS=4 # CONFIG_SERIAL_8250_EXTENDED is not set # CONFIG_SERIAL_8250_DW is not set # CONFIG_SERIAL_8250_FINTEK is not set # CONFIG_SERIAL_UARTLITE is not set CONFIG_SERIAL_CORE=m # CONFIG_SERIAL_JSM is not set # CONFIG_SERIAL_SCCNXP is not set # CONFIG_SERIAL_SC16IS7XX is not set # CONFIG_SERIAL_ALTERA_JTAGUART is not set # CONFIG_SERIAL_ALTERA_UART is not set # CONFIG_SERIAL_ARC is not set # CONFIG_SERIAL_RP2 is not set # CONFIG_SERIAL_FSL_LPUART is not set /Mikael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
