serial: cpm_uart: Protect udbg definitions by CONFIG_SERIAL_CPM_CONSOLE
authorGeert Uytterhoeven <geert@linux-m68k.org>
Wed, 27 Oct 2021 07:53:26 +0000 (09:53 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 18 Nov 2021 18:16:57 +0000 (19:16 +0100)
commitbcf29e436895e46cf2b6939a403f92957505afe7
treeaf25fc0dcf4d3d6790643fd8b0d9bad24139e17e
parent874b8c70f39da1ee78b1f27883c9b45597050872
serial: cpm_uart: Protect udbg definitions by CONFIG_SERIAL_CPM_CONSOLE

[ Upstream commit d142585bceb3218ad432ed0fcd5be9d6e3cd9052 ]

If CONFIG_CONSOLE_POLL=y, and CONFIG_SERIAL_CPM=m (hence
CONFIG_SERIAL_CPM_CONSOLE=n):

    drivers/tty/serial/cpm_uart/cpm_uart_core.c:1109:12: warning: ‘udbg_cpm_getc’ defined but not used [-Wunused-function]
     1109 | static int udbg_cpm_getc(void)
  |            ^~~~~~~~~~~~~
    drivers/tty/serial/cpm_uart/cpm_uart_core.c:1095:13: warning: ‘udbg_cpm_putc’ defined but not used [-Wunused-function]
     1095 | static void udbg_cpm_putc(char c)
  |             ^~~~~~~~~~~~~

Fix this by making the udbg definitions depend on
CONFIG_SERIAL_CPM_CONSOLE, in addition to CONFIG_CONSOLE_POLL.

Fixes: a60526097f42eb98 ("tty: serial: cpm_uart: Add udbg support for enabling xmon")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20211027075326.3270785-1-geert@linux-m68k.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/tty/serial/cpm_uart/cpm_uart_core.c