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During build testing, I ran into a warning in a driver that I
had written myself at some point:
drivers/tty/serial/8250/8250_of.c: In function 'of_platform_serial_probe':
drivers/tty/serial/8250/8250_of.c:233:1: error: the frame size of 1200 bytes is larger than 1152 bytes [-Werror=frame-larger-than=]
This is harmless by itself, but it shows two other problems in
the driver:
- It still tries to be generic enough to handle all kinds of serial
ports, where in reality the driver has been 8250-only for a while,
and every other uart has its own DT support
- As a result of that generalization, we keep two copies of
'struct uart_port' on the stack during probe(). This is completely
unnessary.
Removing the last code dealing with unsupported port_type values
solves both problems nicely, and reduces the stack size.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
aa42db44f6